Report for 21704

Name

ASN-21704 - New York City Board of Education, 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 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.

21704 ASN-21704 - New York City Board of Education, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1703  AS21704        ORIGIN  Originate:     139776 /14.91  Transit:          0 /0.00  ASN-21704 - New York City Board of Education, 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       %
 1254 AS21704       ASN-21704 - New York City Board of Education,     50     49      1      2     48  96.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.125.58.0/23       4777 2497 6461 21704 + Announce - aggregate of 64.125.58.0/24 (4777 2497 6461 21704) and 64.125.59.0/24 (4777 2497 6461 21704)
  64.125.58.0/24       4777 2497 6461 21704 - Withdrawn - aggregated with 64.125.59.0/24 (4777 2497 6461 21704)
  64.125.59.0/24       4777 2497 6461 21704 - Withdrawn - aggregated with 64.125.58.0/24 (4777 2497 6461 21704)
  165.155.0.0/16       4777 2497 6461 21704   
  165.155.16.0/22      4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.20.0/22      4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.32.0/20      4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.48.0/20      4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.64.0/18      4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.64.0/23      4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.96.0/21      4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.104.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.128.0/20     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.128.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.133.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.134.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.135.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.136.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.141.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.142.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.143.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.150.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.152.0/22     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.152.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.154.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.160.0/20     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.160.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.165.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.166.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.167.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.168.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.173.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.174.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.175.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.176.0/20     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.176.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.182.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.184.0/22     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.184.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.186.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.192.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.208.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.212.0/23     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.216.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.217.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.220.0/22     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.224.0/21     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.225.0/24     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.228.0/22     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.232.0/22     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704
  165.155.236.0/22     4777 2497 6461 21704 - Withdrawn - matching aggregate 165.155.0.0/16 4777 2497 6461 21704

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

AS21704   49 More Specifics   50 Total Advertisements   ASN-21704 - New York City Board of Education, US
    64.125.58.0/24                64.125.0.0/16
    64.125.59.0/24                64.125.0.0/16
    165.155.16.0/22               165.155.0.0/16
    165.155.20.0/22               165.155.0.0/16
    165.155.32.0/20               165.155.0.0/16
    165.155.48.0/20               165.155.0.0/16
    165.155.64.0/18               165.155.0.0/16
    165.155.64.0/23               165.155.0.0/16
    165.155.96.0/21               165.155.0.0/16
    165.155.104.0/21              165.155.0.0/16
    165.155.128.0/20              165.155.0.0/16
    165.155.128.0/21              165.155.0.0/16
    165.155.133.0/24              165.155.0.0/16
    165.155.134.0/24              165.155.0.0/16
    165.155.135.0/24              165.155.0.0/16
    165.155.136.0/21              165.155.0.0/16
    165.155.141.0/24              165.155.0.0/16
    165.155.142.0/24              165.155.0.0/16
    165.155.143.0/24              165.155.0.0/16
    165.155.150.0/23              165.155.0.0/16
    165.155.152.0/22              165.155.0.0/16
    165.155.152.0/23              165.155.0.0/16
    165.155.154.0/23              165.155.0.0/16
    165.155.160.0/20              165.155.0.0/16
    165.155.160.0/21              165.155.0.0/16
    165.155.165.0/24              165.155.0.0/16
    165.155.166.0/24              165.155.0.0/16
    165.155.167.0/24              165.155.0.0/16
    165.155.168.0/21              165.155.0.0/16
    165.155.173.0/24              165.155.0.0/16
    165.155.174.0/24              165.155.0.0/16
    165.155.175.0/24              165.155.0.0/16
    165.155.176.0/20              165.155.0.0/16
    165.155.176.0/21              165.155.0.0/16
    165.155.182.0/23              165.155.0.0/16
    165.155.184.0/22              165.155.0.0/16
    165.155.184.0/23              165.155.0.0/16
    165.155.186.0/23              165.155.0.0/16
    165.155.192.0/21              165.155.0.0/16
    165.155.208.0/23              165.155.0.0/16
    165.155.212.0/23              165.155.0.0/16
    165.155.216.0/21              165.155.0.0/16
    165.155.217.0/24              165.155.0.0/16
    165.155.220.0/22              165.155.0.0/16
    165.155.224.0/21              165.155.0.0/16
    165.155.225.0/24              165.155.0.0/16
    165.155.228.0/22              165.155.0.0/16
    165.155.232.0/22              165.155.0.0/16
    165.155.236.0/22              165.155.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS21704 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21704\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:       21704
             ASName:         ASN-21704
             ASHandle:       AS21704
             RegDate:        2024-06-06
             Updated:        2024-06-06
             Ref:            https://rdap.arin.net/registry/autnum/21704
             
             
             OrgName:        New York City Board of Education
             OrgId:          NYCBE
             Address:        65 Court Street Room 1000
             City:           Brooklyn
             StateProv:      NY
             PostalCode:     11201
             Country:        US
             RegDate:        1998-05-26
             Updated:        2025-07-24
             Ref:            https://rdap.arin.net/registry/entity/NYCBE
             
             
             OrgTechHandle: NYCPS-ARIN
             OrgTechName:   NYCPS-DIIT
             OrgTechPhone:  +1-718-935-2890 
             OrgTechEmail:  ipeng@schools.nyc.gov
             OrgTechRef:    https://rdap.arin.net/registry/entity/NYCPS-ARIN
             
             OrgNOCHandle: NYCPS-ARIN
             OrgNOCName:   NYCPS-DIIT
             OrgNOCPhone:  +1-718-935-2890 
             OrgNOCEmail:  ipeng@schools.nyc.gov
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NYCPS-ARIN
             
             OrgAbuseHandle: ABUSE9323-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-718-935-4244 
             OrgAbuseEmail:  network-complaints@schools.nyc.gov
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE9323-ARIN
             
             
             #
             # 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.
             #