Report for 53813

Name

ZSCALER-INC - ZSCALER, INC., US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS6447) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

53813 ZSCALER-INC, US

  Adjacency:    17  Upstream:    17  Downstream:     0
  Upstream Adjacent AS list
    AS45267         LIGHTWIRE-AS-AP Lightwire LTD, NZ
    AS3786          LGDACOM LG DACOM Corporation, KR
    AS10026         TELSTRAGLOBAL Telstra Global Internet Services Network Blocks, JP
    AS3356          LEVEL3, US
    AS4788          TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD., MY
    AS55836         RELIANCEJIO-IN Reliance Jio Infocomm Limited, IN
    AS17408         ABOVE-AS-AP AboveNet Communications Taiwan, TW
    AS9583          SIFY-AS-IN Sify Limited, IN
    AS4637          ASN-TELSTRA-GLOBAL Telstra Global, HK
    AS4826          VOCUS-BACKBONE-AS Vocus Connect International Backbone, AU
    AS1299          TWELVE99 Arelion, fka Telia Carrier, SE
    AS9498          BBIL-AP BHARTI Airtel Ltd., IN
    AS2914          NTT-LTD-2914, US
    AS55410         VIL-AS-AP Vodafone Idea Ltd, IN
    AS6939          HURRICANE, US
    AS9318          SKB-AS SK Broadband Co Ltd, KR
    AS7575          AARNET-AS-AP Australian Academic and Research Network AARNet, AU

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2024  AS53813        ORIGIN  Originate:     127232 /15.04  Transit:          0 /0.00  ZSCALER-INC, US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
  644 AS53813       ZSCALER-INC, US                                  329    159     52    222    107  32.52%


  Prefix               AS Path                              Aggregation Suggestion
  64.62.169.0/24       6939 53813             
  101.2.192.0/23       6939 53813           + Announce - aggregate of 101.2.192.0/24 (6939 53813) and 101.2.193.0/24 (6939 53813)
  101.2.192.0/24       6939 53813           - Withdrawn - aggregated with 101.2.193.0/24 (6939 53813)
  101.2.193.0/24       6939 53813           - Withdrawn - aggregated with 101.2.192.0/24 (6939 53813)
  101.2.194.0/24       2914 53813             
  101.2.195.0/24       2497 9498 53813        
  101.2.196.0/24       6939 4826 53813        
  101.2.197.0/24       2914 9498 53813        
  101.2.198.0/24       2497 9498 53813        
  101.2.199.0/24       6939 53813             
  101.2.200.0/24       3303 4637 53813        
  101.2.201.0/24       2914 53813             
  101.2.202.0/23       6939 53813             
  101.2.204.0/23       6939 53813             
  101.2.206.0/24       6939 53813             
  101.2.207.0/24       3257 9498 53813        
  101.2.208.0/24       2914 9498 53813        
  101.2.209.0/24       6939 53813             
  101.2.214.0/24       6939 53813             
  101.2.215.0/24       2497 9498 53813        
  101.2.216.0/22       6939 53813           + Announce - aggregate of 101.2.216.0/23 (6939 53813) and 101.2.218.0/23 (6939 53813)
  101.2.216.0/23       6939 53813           - Withdrawn - aggregated with 101.2.218.0/23 (6939 53813)
  101.2.216.0/24       2914 7575 53813        
  101.2.218.0/23       6939 53813           - Withdrawn - aggregated with 101.2.216.0/23 (6939 53813)
  101.2.220.0/23       2497 9498 53813        
  101.2.222.0/23       2914 53813             
  101.2.224.0/20       2914 53813           + Announce - aggregate of 101.2.224.0/21 (2914 53813) and 101.2.232.0/21 (2914 53813)
  101.2.224.0/23       2914 53813           - Withdrawn - aggregated with 101.2.226.0/23 (2914 53813)
  101.2.226.0/23       2914 53813           - Withdrawn - aggregated with 101.2.224.0/23 (2914 53813)
  101.2.228.0/23       2914 53813           - Withdrawn - aggregated with 101.2.230.0/23 (2914 53813)
  101.2.230.0/23       2914 53813           - Withdrawn - aggregated with 101.2.228.0/23 (2914 53813)
  101.2.232.0/23       2914 53813           - Withdrawn - aggregated with 101.2.234.0/23 (2914 53813)
  101.2.234.0/23       2914 53813           - Withdrawn - aggregated with 101.2.232.0/23 (2914 53813)
  101.2.236.0/23       2914 53813           - Withdrawn - aggregated with 101.2.238.0/23 (2914 53813)
  101.2.238.0/23       2914 53813           - Withdrawn - aggregated with 101.2.236.0/23 (2914 53813)
  101.2.240.0/24       2497 9498 53813        
  101.2.241.0/24       6939 53813             
  101.2.242.0/23       6939 53813             
  101.2.244.0/23       2914 9498 53813        
  101.2.246.0/24       6939 53813             
  101.2.247.0/24       2914 53813             
  101.2.250.0/24       2914 53813             
  136.226.89.0/24      6939 53813             
  136.226.222.0/23     6939 53813             
  136.226.224.0/23     2914 9498 53813        
  136.226.228.0/23     6939 53813             
  136.226.230.0/23     2497 9498 53813        
  136.226.232.0/23     2914 9498 53813        
  136.226.234.0/23     6939 53813             
  136.226.236.0/22     6939 53813           + Announce - aggregate of 136.226.236.0/23 (6939 53813) and 136.226.238.0/23 (6939 53813)
  136.226.236.0/23     6939 53813           - Withdrawn - aggregated with 136.226.238.0/23 (6939 53813)
  136.226.238.0/23     6939 53813           - Withdrawn - aggregated with 136.226.236.0/23 (6939 53813)
  136.226.240.0/23     2914 53813             
  136.226.242.0/23     2497 9498 53813        
  136.226.244.0/23     2497 9498 53813        
  136.226.250.0/23     2497 9498 53813        
  136.226.252.0/23     2497 9498 53813        
  136.226.254.0/23     2914 9498 53813        
  136.226.254.0/24     2914 9498 53813      - Withdrawn - matching aggregate 136.226.254.0/23 2914 9498 53813
  137.31.17.0/24       6939 53813             
  137.31.18.0/24       2914 9498 53813        
  137.31.19.0/24       6939 53813             
  137.31.44.0/24       2914 53813             
  137.31.50.0/24       6939 53813             
  137.31.63.0/24       2914 53813             
  137.31.92.0/23       2914 53813             
  137.83.137.0/24      6939 4826 53813        
  137.83.144.0/23      2914 9498 53813      + Announce - aggregate of 137.83.144.0/24 (2914 9498 53813) and 137.83.145.0/24 (2914 9498 53813)
  137.83.144.0/24      2914 9498 53813      - Withdrawn - aggregated with 137.83.145.0/24 (2914 9498 53813)
  137.83.145.0/24      2914 9498 53813      - Withdrawn - aggregated with 137.83.144.0/24 (2914 9498 53813)
  137.83.147.0/24      2497 4637 53813        
  137.83.149.0/24      6939 53813             
  137.83.150.0/24      6939 53813             
  137.83.151.0/24      6939 4826 53813        
  137.83.152.0/24      6939 53813             
  137.83.160.0/24      6939 53813             
  137.83.178.0/24      6939 53813             
  137.83.184.0/23      6939 4826 53813      + Announce - aggregate of 137.83.184.0/24 (6939 4826 53813) and 137.83.185.0/24 (6939 4826 53813)
  137.83.184.0/24      6939 4826 53813      - Withdrawn - aggregated with 137.83.185.0/24 (6939 4826 53813)
  137.83.185.0/24      6939 4826 53813      - Withdrawn - aggregated with 137.83.184.0/24 (6939 4826 53813)
  137.83.188.0/24      6939 53813             
  137.83.189.0/24      2914 53813             
  147.161.192.0/21     6939 53813           + Announce - aggregate of 147.161.192.0/22 (6939 53813) and 147.161.196.0/22 (6939 53813)
  147.161.192.0/23     6939 53813           - Withdrawn - aggregated with 147.161.194.0/23 (6939 53813)
  147.161.194.0/23     6939 53813           - Withdrawn - aggregated with 147.161.192.0/23 (6939 53813)
  147.161.196.0/23     6939 53813           - Withdrawn - aggregated with 147.161.198.0/23 (6939 53813)
  147.161.198.0/23     6939 53813           - Withdrawn - aggregated with 147.161.196.0/23 (6939 53813)
  147.161.200.0/23     6939 53813             
  147.161.204.0/23     6939 53813             
  147.161.208.0/23     3303 4637 53813        
  147.161.210.0/23     6939 53813             
  147.161.212.0/23     6939 4826 53813        
  147.161.214.0/23     3303 4637 53813        
  147.161.216.0/22     6939 4826 53813      + Announce - aggregate of 147.161.216.0/23 (6939 4826 53813) and 147.161.218.0/23 (6939 4826 53813)
  147.161.216.0/23     6939 4826 53813      - Withdrawn - aggregated with 147.161.218.0/23 (6939 4826 53813)
  147.161.218.0/23     6939 4826 53813      - Withdrawn - aggregated with 147.161.216.0/23 (6939 4826 53813)
  147.161.220.0/23     6939 4826 53813        
  159.254.98.0/24      6939 53813             
  159.254.103.0/24     6939 4826 53813        
  159.254.204.0/24     2497 9498 53813        
  161.151.234.0/24     6939 53813             
  161.151.235.0/24     6939 9498 53813        
  161.151.240.0/23     6939 53813           + Announce - aggregate of 161.151.240.0/24 (6939 53813) and 161.151.241.0/24 (6939 53813)
  161.151.240.0/24     6939 53813           - Withdrawn - aggregated with 161.151.241.0/24 (6939 53813)
  161.151.241.0/24     6939 53813           - Withdrawn - aggregated with 161.151.240.0/24 (6939 53813)
  164.137.56.0/22      2914 9498 53813      + Announce - aggregate of 164.137.56.0/23 (2914 9498 53813) and 164.137.58.0/23 (2914 9498 53813)
  164.137.56.0/24      2914 9498 53813      - Withdrawn - aggregated with 164.137.57.0/24 (2914 9498 53813)
  164.137.57.0/24      2914 9498 53813      - Withdrawn - aggregated with 164.137.56.0/24 (2914 9498 53813)
  164.137.58.0/24      2914 9498 53813      - Withdrawn - aggregated with 164.137.59.0/24 (2914 9498 53813)
  164.137.59.0/24      2914 9498 53813      - Withdrawn - aggregated with 164.137.58.0/24 (2914 9498 53813)
  164.137.60.0/24      2914 9498 53813        
  164.137.69.0/24      6939 53813             
  164.137.109.0/24     6939 53813             
  164.137.159.0/24     6939 53813             
  164.137.160.0/20     6939 53813           + Announce - aggregate of 164.137.160.0/21 (6939 53813) and 164.137.168.0/21 (6939 53813)
  164.137.160.0/24     6939 53813           - Withdrawn - aggregated with 164.137.161.0/24 (6939 53813)
  164.137.161.0/24     6939 53813           - Withdrawn - aggregated with 164.137.160.0/24 (6939 53813)
  164.137.162.0/24     6939 53813           - Withdrawn - aggregated with 164.137.163.0/24 (6939 53813)
  164.137.163.0/24     6939 53813           - Withdrawn - aggregated with 164.137.162.0/24 (6939 53813)
  164.137.164.0/24     6939 53813           - Withdrawn - aggregated with 164.137.165.0/24 (6939 53813)
  164.137.165.0/24     6939 53813           - Withdrawn - aggregated with 164.137.164.0/24 (6939 53813)
  164.137.166.0/24     6939 53813           - Withdrawn - aggregated with 164.137.167.0/24 (6939 53813)
  164.137.167.0/24     6939 53813           - Withdrawn - aggregated with 164.137.166.0/24 (6939 53813)
  164.137.168.0/24     6939 53813           - Withdrawn - aggregated with 164.137.169.0/24 (6939 53813)
  164.137.169.0/24     6939 53813           - Withdrawn - aggregated with 164.137.168.0/24 (6939 53813)
  164.137.170.0/24     6939 53813           - Withdrawn - aggregated with 164.137.171.0/24 (6939 53813)
  164.137.171.0/24     6939 53813           - Withdrawn - aggregated with 164.137.170.0/24 (6939 53813)
  164.137.172.0/24     6939 53813           - Withdrawn - aggregated with 164.137.173.0/24 (6939 53813)
  164.137.173.0/24     6939 53813           - Withdrawn - aggregated with 164.137.172.0/24 (6939 53813)
  164.137.174.0/24     6939 53813           - Withdrawn - aggregated with 164.137.175.0/24 (6939 53813)
  164.137.175.0/24     6939 53813           - Withdrawn - aggregated with 164.137.174.0/24 (6939 53813)
  164.137.176.0/23     6939 53813           + Announce - aggregate of 164.137.176.0/24 (6939 53813) and 164.137.177.0/24 (6939 53813)
  164.137.176.0/24     6939 53813           - Withdrawn - aggregated with 164.137.177.0/24 (6939 53813)
  164.137.177.0/24     6939 53813           - Withdrawn - aggregated with 164.137.176.0/24 (6939 53813)
  164.137.178.0/24     6939 53813             
  164.137.179.0/24     2914 53813             
  164.137.180.0/22     6939 53813           + Announce - aggregate of 164.137.180.0/23 (6939 53813) and 164.137.182.0/23 (6939 53813)
  164.137.180.0/24     6939 53813           - Withdrawn - aggregated with 164.137.181.0/24 (6939 53813)
  164.137.181.0/24     6939 53813           - Withdrawn - aggregated with 164.137.180.0/24 (6939 53813)
  164.137.182.0/24     6939 53813           - Withdrawn - aggregated with 164.137.183.0/24 (6939 53813)
  164.137.183.0/24     6939 53813           - Withdrawn - aggregated with 164.137.182.0/24 (6939 53813)
  164.137.184.0/24     6939 53813             
  164.137.185.0/24     2497 9498 53813        
  164.137.186.0/23     2497 9498 53813      + Announce - aggregate of 164.137.186.0/24 (2497 9498 53813) and 164.137.187.0/24 (2497 9498 53813)
  164.137.186.0/24     2497 9498 53813      - Withdrawn - aggregated with 164.137.187.0/24 (2497 9498 53813)
  164.137.187.0/24     2497 9498 53813      - Withdrawn - aggregated with 164.137.186.0/24 (2497 9498 53813)
  164.137.188.0/22     2497 9498 53813      + Announce - aggregate of 164.137.188.0/23 (2497 9498 53813) and 164.137.190.0/23 (2497 9498 53813)
  164.137.188.0/24     2497 9498 53813      - Withdrawn - aggregated with 164.137.189.0/24 (2497 9498 53813)
  164.137.189.0/24     2497 9498 53813      - Withdrawn - aggregated with 164.137.188.0/24 (2497 9498 53813)
  164.137.190.0/24     2497 9498 53813      - Withdrawn - aggregated with 164.137.191.0/24 (2497 9498 53813)
  164.137.191.0/24     2497 9498 53813      - Withdrawn - aggregated with 164.137.190.0/24 (2497 9498 53813)
  164.137.192.0/24     2497 9498 53813        
  165.225.96.0/23      6939 53813             
  165.225.102.0/24     2914 53813             
  165.225.104.0/23     2497 9498 53813        
  165.225.104.0/24     2497 9498 53813      - Withdrawn - matching aggregate 165.225.104.0/23 2497 9498 53813
  165.225.105.0/24     2497 9498 53813      - Withdrawn - matching aggregate 165.225.104.0/23 2497 9498 53813
  165.225.106.0/23     6939 9498 53813        
  165.225.106.0/24     6939 9498 53813      - Withdrawn - matching aggregate 165.225.106.0/23 6939 9498 53813
  165.225.107.0/24     6939 9498 53813      - Withdrawn - matching aggregate 165.225.106.0/23 6939 9498 53813
  165.225.110.0/23     6939 53813             
  165.225.112.0/23     6939 53813             
  165.225.114.0/23     3303 4637 53813        
  165.225.114.0/24     3303 4637 53813      - Withdrawn - matching aggregate 165.225.114.0/23 3303 4637 53813
  165.225.116.0/23     6939 53813             
  165.225.118.0/24     3303 4637 53813        
  165.225.120.0/23     2914 9498 53813        
  165.225.120.0/24     2914 9498 53813      - Withdrawn - matching aggregate 165.225.120.0/23 2914 9498 53813
  165.225.122.0/23     2497 9498 53813        
  165.225.124.0/23     2497 9498 53813        
  165.225.226.0/23     6939 4826 53813        
  165.225.228.0/23     2497 4637 53813        
  165.225.228.0/24     2497 4637 53813      - Withdrawn - matching aggregate 165.225.228.0/23 2497 4637 53813
  165.225.230.0/23     6939 53813             
  165.225.232.0/23     3303 4637 53813        
  165.225.234.0/23     6939 53813             
  167.103.2.0/23       2914 9498 53813        
  167.103.4.0/22       2497 9498 53813      + Announce - aggregate of 167.103.4.0/23 (2497 9498 53813) and 167.103.6.0/23 (2497 9498 53813)
  167.103.4.0/23       2497 9498 53813      - Withdrawn - aggregated with 167.103.6.0/23 (2497 9498 53813)
  167.103.6.0/23       2497 9498 53813      - Withdrawn - aggregated with 167.103.4.0/23 (2497 9498 53813)
  167.103.8.0/21       6939 53813           + Announce - aggregate of 167.103.8.0/22 (6939 53813) and 167.103.12.0/22 (6939 53813)
  167.103.8.0/23       6939 53813           - Withdrawn - aggregated with 167.103.10.0/23 (6939 53813)
  167.103.10.0/23      6939 53813           - Withdrawn - aggregated with 167.103.8.0/23 (6939 53813)
  167.103.12.0/23      6939 53813           - Withdrawn - aggregated with 167.103.14.0/23 (6939 53813)
  167.103.14.0/23      6939 53813           - Withdrawn - aggregated with 167.103.12.0/23 (6939 53813)
  167.103.16.0/23      6939 53813             
  167.103.18.0/23      2497 9498 53813        
  167.103.20.0/22      2497 9498 53813      + Announce - aggregate of 167.103.20.0/23 (2497 9498 53813) and 167.103.22.0/23 (2497 9498 53813)
  167.103.20.0/23      2497 9498 53813      - Withdrawn - aggregated with 167.103.22.0/23 (2497 9498 53813)
  167.103.22.0/23      2497 9498 53813      - Withdrawn - aggregated with 167.103.20.0/23 (2497 9498 53813)
  167.103.24.0/22      2914 9498 53813      + Announce - aggregate of 167.103.24.0/23 (2914 9498 53813) and 167.103.26.0/23 (2914 9498 53813)
  167.103.24.0/23      2914 9498 53813      - Withdrawn - aggregated with 167.103.26.0/23 (2914 9498 53813)
  167.103.26.0/23      2914 9498 53813      - Withdrawn - aggregated with 167.103.24.0/23 (2914 9498 53813)
  167.103.28.0/23      6939 53813             
  167.103.30.0/23      2497 9498 53813        
  167.103.32.0/23      2914 9498 53813        
  167.103.34.0/23      2497 9498 53813        
  167.103.36.0/23      6939 53813           + Announce - aggregate of 167.103.36.0/24 (6939 53813) and 167.103.37.0/24 (6939 53813)
  167.103.36.0/24      6939 53813           - Withdrawn - aggregated with 167.103.37.0/24 (6939 53813)
  167.103.37.0/24      6939 53813           - Withdrawn - aggregated with 167.103.36.0/24 (6939 53813)
  167.103.38.0/23      3303 4637 53813      + Announce - aggregate of 167.103.38.0/24 (3303 4637 53813) and 167.103.39.0/24 (3303 4637 53813)
  167.103.38.0/24      3303 4637 53813      - Withdrawn - aggregated with 167.103.39.0/24 (3303 4637 53813)
  167.103.39.0/24      3303 4637 53813      - Withdrawn - aggregated with 167.103.38.0/24 (3303 4637 53813)
  167.103.40.0/21      6939 53813           + Announce - aggregate of 167.103.40.0/22 (6939 53813) and 167.103.44.0/22 (6939 53813)
  167.103.40.0/24      6939 53813           - Withdrawn - aggregated with 167.103.41.0/24 (6939 53813)
  167.103.41.0/24      6939 53813           - Withdrawn - aggregated with 167.103.40.0/24 (6939 53813)
  167.103.42.0/23      6939 53813           - Withdrawn - aggregated with 167.103.40.0/23 (6939 53813)
  167.103.44.0/23      6939 53813           - Withdrawn - aggregated with 167.103.46.0/23 (6939 53813)
  167.103.46.0/23      6939 53813           - Withdrawn - aggregated with 167.103.44.0/23 (6939 53813)
  167.103.48.0/24      3303 4637 53813        
  167.103.49.0/24      2497 9498 53813        
  167.103.54.0/23      2497 9498 53813        
  167.103.56.0/22      6939 53813           + Announce - aggregate of 167.103.56.0/23 (6939 53813) and 167.103.58.0/23 (6939 53813)
  167.103.56.0/23      6939 53813           - Withdrawn - aggregated with 167.103.58.0/23 (6939 53813)
  167.103.58.0/23      6939 53813           - Withdrawn - aggregated with 167.103.56.0/23 (6939 53813)
  167.103.60.0/22      2914 53813           + Announce - aggregate of 167.103.60.0/23 (2914 53813) and 167.103.62.0/23 (2914 53813)
  167.103.60.0/23      2914 53813           - Withdrawn - aggregated with 167.103.62.0/23 (2914 53813)
  167.103.62.0/23      2914 53813           - Withdrawn - aggregated with 167.103.60.0/23 (2914 53813)
  167.103.64.0/22      2914 53813           + Announce - aggregate of 167.103.64.0/23 (2914 53813) and 167.103.66.0/23 (2914 53813)
  167.103.64.0/23      2914 53813           - Withdrawn - aggregated with 167.103.66.0/23 (2914 53813)
  167.103.66.0/23      2914 53813           - Withdrawn - aggregated with 167.103.64.0/23 (2914 53813)
  167.103.68.0/23      2914 53813             
  167.103.70.0/23      2914 9498 53813        
  167.103.72.0/21      2914 9498 53813      + Announce - aggregate of 167.103.72.0/22 (2914 9498 53813) and 167.103.76.0/22 (2914 9498 53813)
  167.103.72.0/23      2914 9498 53813      - Withdrawn - aggregated with 167.103.74.0/23 (2914 9498 53813)
  167.103.74.0/23      2914 9498 53813      - Withdrawn - aggregated with 167.103.72.0/23 (2914 9498 53813)
  167.103.76.0/23      2914 9498 53813      - Withdrawn - aggregated with 167.103.78.0/23 (2914 9498 53813)
  167.103.78.0/23      2914 9498 53813      - Withdrawn - aggregated with 167.103.76.0/23 (2914 9498 53813)
  167.103.80.0/22      6939 4826 53813      + Announce - aggregate of 167.103.80.0/23 (6939 4826 53813) and 167.103.82.0/23 (6939 4826 53813)
  167.103.80.0/23      6939 4826 53813      - Withdrawn - aggregated with 167.103.82.0/23 (6939 4826 53813)
  167.103.82.0/23      6939 4826 53813      - Withdrawn - aggregated with 167.103.80.0/23 (6939 4826 53813)
  167.103.84.0/23      2914 9498 53813      + Announce - aggregate of 167.103.84.0/24 (2914 9498 53813) and 167.103.85.0/24 (2914 9498 53813)
  167.103.84.0/24      2914 9498 53813      - Withdrawn - aggregated with 167.103.85.0/24 (2914 9498 53813)
  167.103.85.0/24      2914 9498 53813      - Withdrawn - aggregated with 167.103.84.0/24 (2914 9498 53813)
  167.103.86.0/23      2497 9498 53813      + Announce - aggregate of 167.103.86.0/24 (2497 9498 53813) and 167.103.87.0/24 (2497 9498 53813)
  167.103.86.0/24      2497 9498 53813      - Withdrawn - aggregated with 167.103.87.0/24 (2497 9498 53813)
  167.103.87.0/24      2497 9498 53813      - Withdrawn - aggregated with 167.103.86.0/24 (2497 9498 53813)
  167.103.88.0/23      2497 9498 53813        
  167.103.96.0/23      2497 4637 53813        
  167.103.98.0/23      6939 4826 53813        
  167.103.100.0/22     6939 4826 53813      + Announce - aggregate of 167.103.100.0/23 (6939 4826 53813) and 167.103.102.0/23 (6939 4826 53813)
  167.103.100.0/23     6939 4826 53813      - Withdrawn - aggregated with 167.103.102.0/23 (6939 4826 53813)
  167.103.102.0/23     6939 4826 53813      - Withdrawn - aggregated with 167.103.100.0/23 (6939 4826 53813)
  167.103.110.0/23     2914 53813           + Announce - aggregate of 167.103.110.0/24 (2914 53813) and 167.103.111.0/24 (2914 53813)
  167.103.110.0/24     2914 53813           - Withdrawn - aggregated with 167.103.111.0/24 (2914 53813)
  167.103.111.0/24     2914 53813           - Withdrawn - aggregated with 167.103.110.0/24 (2914 53813)
  167.103.112.0/23     6939 4826 53813        
  167.103.114.0/23     6939 53813             
  167.103.116.0/23     6939 53813             
  167.103.118.0/23     3257 55410 53813       
  167.103.120.0/23     2914 9583 53813        
  167.103.122.0/23     6939 53813             
  167.103.124.0/23     6939 53813             
  167.103.126.0/23     6939 4826 53813        
  167.103.132.0/22     2497 9498 53813      + Announce - aggregate of 167.103.132.0/23 (2497 9498 53813) and 167.103.134.0/23 (2497 9498 53813)
  167.103.132.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.134.0/23 (2497 9498 53813)
  167.103.134.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.132.0/23 (2497 9498 53813)
  167.103.136.0/22     2497 9498 53813      + Announce - aggregate of 167.103.136.0/23 (2497 9498 53813) and 167.103.138.0/23 (2497 9498 53813)
  167.103.136.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.138.0/23 (2497 9498 53813)
  167.103.138.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.136.0/23 (2497 9498 53813)
  167.103.140.0/23     2497 9498 53813        
  167.103.142.0/23     2914 53813             
  167.103.144.0/23     2914 53813             
  167.103.146.0/23     2497 9498 53813        
  167.103.154.0/23     2914 9498 53813        
  167.103.156.0/23     2914 9498 53813        
  167.103.158.0/23     2914 53813             
  167.103.160.0/23     2914 53813             
  167.103.162.0/23     6939 53813             
  167.103.164.0/22     6939 53813           + Announce - aggregate of 167.103.164.0/23 (6939 53813) and 167.103.166.0/23 (6939 53813)
  167.103.164.0/23     6939 53813           - Withdrawn - aggregated with 167.103.166.0/23 (6939 53813)
  167.103.166.0/23     6939 53813           - Withdrawn - aggregated with 167.103.164.0/23 (6939 53813)
  167.103.186.0/23     2914 9498 53813        
  167.103.188.0/23     2914 9583 53813        
  167.103.190.0/23     2914 9498 53813        
  167.103.192.0/23     2914 9498 53813        
  167.103.196.0/22     2497 9498 53813      + Announce - aggregate of 167.103.196.0/23 (2497 9498 53813) and 167.103.198.0/23 (2497 9498 53813)
  167.103.196.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.198.0/23 (2497 9498 53813)
  167.103.198.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.196.0/23 (2497 9498 53813)
  167.103.200.0/22     2497 9498 53813      + Announce - aggregate of 167.103.200.0/23 (2497 9498 53813) and 167.103.202.0/23 (2497 9498 53813)
  167.103.200.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.202.0/23 (2497 9498 53813)
  167.103.202.0/23     2497 9498 53813      - Withdrawn - aggregated with 167.103.200.0/23 (2497 9498 53813)
  167.103.204.0/22     2914 9498 53813      + Announce - aggregate of 167.103.204.0/23 (2914 9498 53813) and 167.103.206.0/23 (2914 9498 53813)
  167.103.204.0/23     2914 9498 53813      - Withdrawn - aggregated with 167.103.206.0/23 (2914 9498 53813)
  167.103.206.0/23     2914 9498 53813      - Withdrawn - aggregated with 167.103.204.0/23 (2914 9498 53813)
  167.103.208.0/22     2914 9498 53813      + Announce - aggregate of 167.103.208.0/23 (2914 9498 53813) and 167.103.210.0/23 (2914 9498 53813)
  167.103.208.0/23     2914 9498 53813      - Withdrawn - aggregated with 167.103.210.0/23 (2914 9498 53813)
  167.103.210.0/23     2914 9498 53813      - Withdrawn - aggregated with 167.103.208.0/23 (2914 9498 53813)
  167.103.212.0/23     2497 9498 53813        
  167.103.214.0/23     2914 53813             
  167.103.216.0/23     2914 53813             
  167.103.228.0/23     2497 9498 53813        
  167.103.232.0/22     6939 53813           + Announce - aggregate of 167.103.232.0/23 (6939 53813) and 167.103.234.0/23 (6939 53813)
  167.103.232.0/23     6939 53813           - Withdrawn - aggregated with 167.103.234.0/23 (6939 53813)
  167.103.234.0/23     6939 53813           - Withdrawn - aggregated with 167.103.232.0/23 (6939 53813)
  167.103.247.0/24     6939 53813             
  167.103.248.0/21     2914 53813           + Announce - aggregate of 167.103.248.0/22 (2914 53813) and 167.103.252.0/22 (2914 53813)
  167.103.248.0/23     2914 53813           - Withdrawn - aggregated with 167.103.250.0/23 (2914 53813)
  167.103.250.0/23     2914 53813           - Withdrawn - aggregated with 167.103.248.0/23 (2914 53813)
  167.103.252.0/23     2914 53813           - Withdrawn - aggregated with 167.103.254.0/23 (2914 53813)
  167.103.254.0/23     2914 53813           - Withdrawn - aggregated with 167.103.252.0/23 (2914 53813)
  168.183.183.0/24     2497 4637 53813        
  168.183.184.0/24     6939 9498 53813        
  168.183.185.0/24     2914 9498 53813        
  168.183.186.0/24     2497 9498 53813        
  168.183.191.0/24     6939 53813             
  168.183.192.0/24     6939 53813             
  168.183.193.0/24     6939 9583 53813        
  170.85.249.0/24      2497 9498 53813        
  170.85.250.0/24      2497 9498 53813        
  175.107.128.0/22     6939 53813           + Announce - aggregate of 175.107.128.0/23 (6939 53813) and 175.107.130.0/23 (6939 53813)
  175.107.128.0/23     6939 53813           - Withdrawn - aggregated with 175.107.130.0/23 (6939 53813)
  175.107.130.0/23     6939 53813           - Withdrawn - aggregated with 175.107.128.0/23 (6939 53813)
  175.107.132.0/23     2497 4637 53813        
  175.107.134.0/24     2497 4637 53813        
  175.107.140.0/22     2497 9498 53813      + Announce - aggregate of 175.107.140.0/23 (2497 9498 53813) and 175.107.142.0/23 (2497 9498 53813)
  175.107.140.0/23     2497 9498 53813      - Withdrawn - aggregated with 175.107.142.0/23 (2497 9498 53813)
  175.107.142.0/23     2497 9498 53813      - Withdrawn - aggregated with 175.107.140.0/23 (2497 9498 53813)
  175.107.144.0/20     6939 53813           + Announce - aggregate of 175.107.144.0/21 (6939 53813) and 175.107.152.0/21 (6939 53813)
  175.107.144.0/23     6939 53813           - Withdrawn - aggregated with 175.107.146.0/23 (6939 53813)
  175.107.146.0/23     6939 53813           - Withdrawn - aggregated with 175.107.144.0/23 (6939 53813)
  175.107.148.0/23     6939 53813           - Withdrawn - aggregated with 175.107.150.0/23 (6939 53813)
  175.107.150.0/23     6939 53813           - Withdrawn - aggregated with 175.107.148.0/23 (6939 53813)
  175.107.152.0/23     6939 53813           - Withdrawn - aggregated with 175.107.154.0/23 (6939 53813)
  175.107.154.0/23     6939 53813           - Withdrawn - aggregated with 175.107.152.0/23 (6939 53813)
  175.107.156.0/23     6939 53813           - Withdrawn - aggregated with 175.107.158.0/23 (6939 53813)
  175.107.158.0/23     6939 53813           - Withdrawn - aggregated with 175.107.156.0/23 (6939 53813)
  175.107.184.0/23     2914 53813             
  205.220.16.0/21      2497 9498 53813      + Announce - aggregate of 205.220.16.0/22 (2497 9498 53813) and 205.220.20.0/22 (2497 9498 53813)
  205.220.16.0/23      2497 9498 53813      - Withdrawn - aggregated with 205.220.18.0/23 (2497 9498 53813)
  205.220.18.0/23      2497 9498 53813      - Withdrawn - aggregated with 205.220.16.0/23 (2497 9498 53813)
  205.220.20.0/23      2497 9498 53813      - Withdrawn - aggregated with 205.220.22.0/23 (2497 9498 53813)
  205.220.22.0/23      2497 9498 53813      - Withdrawn - aggregated with 205.220.20.0/23 (2497 9498 53813)
  205.220.24.0/23      2497 9498 53813        
  205.220.70.0/23      2914 53813             
  205.220.72.0/21      2914 53813           + Announce - aggregate of 205.220.72.0/22 (2914 53813) and 205.220.76.0/22 (2914 53813)
  205.220.72.0/23      2914 53813           - Withdrawn - aggregated with 205.220.74.0/23 (2914 53813)
  205.220.74.0/23      2914 53813           - Withdrawn - aggregated with 205.220.72.0/23 (2914 53813)
  205.220.76.0/23      2914 53813           - Withdrawn - aggregated with 205.220.78.0/23 (2914 53813)
  205.220.78.0/23      2914 53813           - Withdrawn - aggregated with 205.220.76.0/23 (2914 53813)
  205.220.80.0/24      2914 53813             
  205.220.83.0/24      6939 53813             
  205.220.90.0/23      2914 53813           + Announce - aggregate of 205.220.90.0/24 (2914 53813) and 205.220.91.0/24 (2914 53813)
  205.220.90.0/24      2914 53813           - Withdrawn - aggregated with 205.220.91.0/24 (2914 53813)
  205.220.91.0/24      2914 53813           - Withdrawn - aggregated with 205.220.90.0/24 (2914 53813)
  205.220.92.0/24      6939 53813             
  205.220.98.0/24      2914 53813             
  209.55.129.0/24      2914 9498 53813        
  209.55.130.0/24      2497 9498 53813        
  209.55.133.0/24      3303 4637 53813        
  209.55.134.0/24      6939 53813             
  209.55.136.0/23      2497 9498 53813      + Announce - aggregate of 209.55.136.0/24 (2497 9498 53813) and 209.55.137.0/24 (2497 9498 53813)
  209.55.136.0/24      2497 9498 53813      - Withdrawn - aggregated with 209.55.137.0/24 (2497 9498 53813)
  209.55.137.0/24      2497 9498 53813      - Withdrawn - aggregated with 209.55.136.0/24 (2497 9498 53813)
  209.55.140.0/24      6939 53813             
  209.55.150.0/23      2497 9498 53813      + Announce - aggregate of 209.55.150.0/24 (2497 9498 53813) and 209.55.151.0/24 (2497 9498 53813)
  209.55.150.0/24      2497 9498 53813      - Withdrawn - aggregated with 209.55.151.0/24 (2497 9498 53813)
  209.55.151.0/24      2497 9498 53813      - Withdrawn - aggregated with 209.55.150.0/24 (2497 9498 53813)
  209.55.157.0/24      6939 53813             
  209.55.166.0/23      6939 53813           + Announce - aggregate of 209.55.166.0/24 (6939 53813) and 209.55.167.0/24 (6939 53813)
  209.55.166.0/24      6939 53813           - Withdrawn - aggregated with 209.55.167.0/24 (6939 53813)
  209.55.167.0/24      6939 53813           - Withdrawn - aggregated with 209.55.166.0/24 (6939 53813)
  209.55.169.0/24      2497 9498 53813        
  209.55.170.0/24      6939 53813             
  209.55.177.0/24      6939 4826 53813        
  209.55.182.0/24      6939 4826 53813        
  209.55.184.0/24      6939 53813             
  209.55.202.0/23      2497 9498 53813      + Announce - aggregate of 209.55.202.0/24 (2497 9498 53813) and 209.55.203.0/24 (2497 9498 53813)
  209.55.202.0/24      2497 9498 53813      - Withdrawn - aggregated with 209.55.203.0/24 (2497 9498 53813)
  209.55.203.0/24      2497 9498 53813      - Withdrawn - aggregated with 209.55.202.0/24 (2497 9498 53813)
  209.55.204.0/23      2914 9498 53813      + Announce - aggregate of 209.55.204.0/24 (2914 9498 53813) and 209.55.205.0/24 (2914 9498 53813)
  209.55.204.0/24      2914 9498 53813      - Withdrawn - aggregated with 209.55.205.0/24 (2914 9498 53813)
  209.55.205.0/24      2914 9498 53813      - Withdrawn - aggregated with 209.55.204.0/24 (2914 9498 53813)
  209.55.206.0/23      2914 53813           + Announce - aggregate of 209.55.206.0/24 (2914 53813) and 209.55.207.0/24 (2914 53813)
  209.55.206.0/24      2914 53813           - Withdrawn - aggregated with 209.55.207.0/24 (2914 53813)
  209.55.207.0/24      2914 53813           - Withdrawn - aggregated with 209.55.206.0/24 (2914 53813)
  209.55.208.0/24      6939 53813             
  209.55.211.0/24      2914 53813             
  209.55.212.0/24      2914 53813             
  209.55.213.0/24      2914 9498 53813        
  209.55.219.0/24      2914 9498 53813        

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS53813   74 More Specifics   74 Total Advertisements   ZSCALER-INC, US
    64.62.169.0/24                64.62.128.0/17
    136.226.228.0/23              136.226.0.0/16
    136.226.230.0/23              136.226.0.0/16
    136.226.232.0/23              136.226.0.0/16
    136.226.234.0/23              136.226.0.0/16
    136.226.236.0/23              136.226.0.0/16
    136.226.238.0/23              136.226.0.0/16
    136.226.240.0/23              136.226.0.0/16
    136.226.242.0/23              136.226.0.0/16
    136.226.244.0/23              136.226.0.0/16
    136.226.250.0/23              136.226.0.0/16
    136.226.252.0/23              136.226.0.0/16
    136.226.254.0/23              136.226.0.0/16
    136.226.254.0/24              136.226.0.0/16
    136.226.255.0/24              136.226.0.0/16
    137.83.137.0/24               137.83.128.0/18
    137.83.143.0/24               137.83.128.0/18
    137.83.144.0/24               137.83.128.0/18
    137.83.145.0/24               137.83.128.0/18
    137.83.147.0/24               137.83.128.0/18
    137.83.149.0/24               137.83.128.0/18
    137.83.150.0/24               137.83.128.0/18
    137.83.151.0/24               137.83.128.0/18
    137.83.152.0/24               137.83.128.0/18
    137.83.160.0/24               137.83.128.0/18
    137.83.178.0/24               137.83.128.0/18
    137.83.184.0/24               137.83.128.0/18
    137.83.185.0/24               137.83.128.0/18
    137.83.188.0/24               137.83.128.0/18
    137.83.189.0/24               137.83.128.0/18
    147.161.192.0/23              147.161.128.0/17
    147.161.194.0/23              147.161.128.0/17
    147.161.196.0/23              147.161.128.0/17
    147.161.198.0/23              147.161.128.0/17
    147.161.200.0/23              147.161.128.0/17
    147.161.204.0/23              147.161.128.0/17
    147.161.212.0/23              147.161.128.0/17
    147.161.214.0/23              147.161.128.0/17
    147.161.216.0/23              147.161.128.0/17
    147.161.218.0/23              147.161.128.0/17
    147.161.220.0/23              147.161.128.0/17
    165.225.96.0/23               165.225.0.0/17
    165.225.102.0/24              165.225.0.0/17
    165.225.104.0/23              165.225.0.0/17
    165.225.104.0/24              165.225.0.0/17
    165.225.105.0/24              165.225.0.0/17
    165.225.106.0/23              165.225.0.0/17
    165.225.106.0/24              165.225.0.0/17
    165.225.107.0/24              165.225.0.0/17
    165.225.110.0/23              165.225.0.0/17
    165.225.112.0/23              165.225.0.0/17
    165.225.114.0/23              165.225.0.0/17
    165.225.114.0/24              165.225.0.0/17
    165.225.116.0/23              165.225.0.0/17
    165.225.118.0/24              165.225.0.0/17
    165.225.120.0/23              165.225.0.0/17
    165.225.120.0/24              165.225.0.0/17
    165.225.121.0/24              165.225.0.0/17
    165.225.122.0/23              165.225.0.0/17
    165.225.124.0/23              165.225.0.0/17
    165.225.125.0/24              165.225.0.0/17
    165.225.226.0/23              165.225.192.0/18
    165.225.228.0/23              165.225.192.0/18
    165.225.228.0/24              165.225.192.0/18
    165.225.229.0/24              165.225.192.0/18
    165.225.230.0/23              165.225.192.0/18
    165.225.232.0/23              165.225.192.0/18
    165.225.234.0/23              165.225.192.0/18
    209.55.129.0/24               209.55.128.0/18
    209.55.130.0/24               209.55.128.0/18
    209.55.131.0/24               209.55.128.0/18
    209.55.133.0/24               209.55.128.0/18
    209.55.136.0/24               209.55.128.0/18
    209.55.137.0/24               209.55.128.0/18
    147.161.208.0/23              147.161.128.0/17
    167.103.2.0/23                167.103.0.0/16
    167.103.6.0/23                167.103.0.0/16
    167.103.28.0/23               167.103.0.0/16
    167.103.30.0/23               167.103.0.0/16
    167.103.34.0/23               167.103.0.0/16
    167.103.36.0/24               167.103.0.0/16
    167.103.37.0/24               167.103.0.0/16
    167.103.38.0/24               167.103.0.0/16
    167.103.39.0/24               167.103.0.0/16
    167.103.40.0/24               167.103.0.0/16
    167.103.41.0/24               167.103.0.0/16
    167.103.42.0/23               167.103.0.0/16
    167.103.44.0/23               167.103.0.0/16
    167.103.46.0/23               167.103.0.0/16
    167.103.48.0/24               167.103.0.0/16
    209.55.140.0/24               209.55.128.0/18
    209.55.157.0/24               209.55.128.0/18

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 136.226.255.0/24            Announced
    + 137.83.143.0/24             Announced
    + 165.225.121.0/24            Announced
    + 165.225.125.0/24            Announced
    + 165.225.229.0/24            Announced
    + 209.55.131.0/24             Announced
    - 147.161.208.0/23            Withdrawn
    - 167.103.2.0/23              Withdrawn
    - 167.103.6.0/23              Withdrawn
    - 167.103.28.0/23             Withdrawn
    - 167.103.30.0/23             Withdrawn
    - 167.103.34.0/23             Withdrawn
    - 167.103.36.0/24             Withdrawn
    - 167.103.37.0/24             Withdrawn
    - 167.103.38.0/24             Withdrawn
    - 167.103.39.0/24             Withdrawn
    - 167.103.40.0/24             Withdrawn
    - 167.103.41.0/24             Withdrawn
    - 167.103.42.0/23             Withdrawn
    - 167.103.44.0/23             Withdrawn
    - 167.103.46.0/23             Withdrawn
    - 167.103.48.0/24             Withdrawn
    - 209.55.140.0/24             Withdrawn
    - 209.55.157.0/24             Withdrawn

Whois Entry

whois: 402551

IANA has recorded AS53813 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS53813\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       53813
             ASName:         ZSCALER-INC
             ASHandle:       AS53813
             RegDate:        2011-06-03
             Updated:        2013-04-23
             Ref:            https://rdap.arin.net/registry/autnum/53813
             
             
             
             OrgName:        ZSCALER, INC.
             OrgId:          ZSCAL
             Address:        120 Holger Way
             City:           San Jose
             StateProv:      CA
             PostalCode:     95134
             Country:        US
             RegDate:        2011-03-18
             Updated:        2025-11-06
             Comment:        Zscaler customer traffic originates from colocation facilities around the world. You should *NOT* use the address or contact information here for the purposes of geolocation. Additionally, because traffic egressing our network may belong to any one of our customers, you should not assume that this traffic belongs to us.
             Comment:        
             Comment:        For network or security incidents, please reach out to our abuse POC, which is actually monitored and actioned.
             Ref:            https://rdap.arin.net/registry/entity/ZSCAL
             
             
             OrgNOCHandle: POCNO1-ARIN
             OrgNOCName:   poc-noc
             OrgNOCPhone:  +1-408-701-0534 
             OrgNOCEmail:  poc-noc@zscaler.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/POCNO1-ARIN
             
             OrgAbuseHandle: POCAB2-ARIN
             OrgAbuseName:   poc-abuse
             OrgAbusePhone:  +1-408-701-0534 
             OrgAbuseEmail:  poc-abuse@zscaler.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/POCAB2-ARIN
             
             OrgTechHandle: MMT31-ARIN
             OrgTechName:   Teng, Michael Michael
             OrgTechPhone:  +1-650-937-9195 
             OrgTechEmail:  mteng@zscaler.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MMT31-ARIN
             
             OrgTechHandle: POCTE3-ARIN
             OrgTechName:   poc-tech
             OrgTechPhone:  +1-408-701-0534 
             OrgTechEmail:  poc-tech@zscaler.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/POCTE3-ARIN
             
             
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