Report for 37738

Name

HOSTOWEB - HOSTOWEB, MA

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 AS2.0) 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.

37738 HOSTOWEB - HOSTOWEB, MA

  Adjacency:     4  Upstream:     2  Downstream:     2
  Upstream Adjacent AS list
    AS36925         MEDITELECOM - MEDITELECOM, MA
    AS174           COGENT-174 - Cogent Communications, LLC, US
  Downstream Adjacent AS list
    AS138627        CATONETWORKSINC-AS-AP - Cato Networks, Inc., HK
    AS136258        ONEPROVIDER-AS - BrainStorm Network, Inc, CA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
19791 AS37738        ORG+TRN Originate:       3072 /20.42  Transit:        512 /23.00 HOSTOWEB - HOSTOWEB, MA

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       %
22575 AS37738       HOSTOWEB - HOSTOWEB, MA                           12      2      1     11      1   8.33%


  Prefix               AS Path                              Aggregation Suggestion
  102.210.212.0/24     4777 2497 5511 36925 37738   
  102.210.213.0/24     4777 2516 174 37738    
  102.210.214.0/24     4777 2516 174 37738    
  102.210.215.0/24     4777 2497 5511 36925 37738   
  154.70.200.0/24      4777 2516 174 37738    
  154.70.201.0/24      4777 2497 174 37738    
  154.70.202.0/24      4777 2516 174 37738    
  154.70.203.0/24      4777 2497 174 37738    
  154.70.204.0/23      4777 2516 174 37738  + Announce - aggregate of 154.70.204.0/24 (4777 2516 174 37738) and 154.70.205.0/24 (4777 2516 174 37738)
  154.70.204.0/24      4777 2516 174 37738  - Withdrawn - aggregated with 154.70.205.0/24 (4777 2516 174 37738)
  154.70.205.0/24      4777 2516 174 37738  - Withdrawn - aggregated with 154.70.204.0/24 (4777 2516 174 37738)
  154.70.206.0/24      4777 2497 174 37738    
  154.70.207.0/24      4777 2516 174 37738    

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

AS37738   12 More Specifics   12 Total Advertisements   HOSTOWEB - HOSTOWEB, MA
    102.210.212.0/24              102.210.212.0/22
    102.210.213.0/24              102.210.212.0/22
    102.210.214.0/24              102.210.212.0/22
    102.210.215.0/24              102.210.212.0/22
    154.70.200.0/24               154.70.200.0/21
    154.70.201.0/24               154.70.200.0/21
    154.70.202.0/24               154.70.200.0/21
    154.70.203.0/24               154.70.200.0/21
    154.70.204.0/24               154.70.200.0/21
    154.70.205.0/24               154.70.200.0/21
    154.70.206.0/24               154.70.200.0/21
    154.70.207.0/24               154.70.200.0/21

Whois Entry

whois: 402603

IANA has recorded AS37738 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS37738\n             % This is the AfriNIC Whois server.
             % The AFRINIC whois database is subject to  the following terms of Use. See https://afrinic.net/whois/terms