Report for 63261

Name

GHCO-DCA - Graham Holdings Company, 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.

63261 GHCO-DCA, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
66165 AS63261        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  GHCO-DCA, 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       %
52358 AS63261       GHCO-DCA, US                                       1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  38.100.48.0/24       7018 3356 63261        

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

AS63261   1 More Specifics   1 Total Advertisements   GHCO-DCA, US
    38.100.48.0/24                38.0.0.0/8

Whois Entry

whois: 402590

IANA has recorded AS63261 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS63261\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:       63261
             ASName:         GHCO-DCA
             ASHandle:       AS63261
             RegDate:        2014-10-27
             Updated:        2014-10-27
             Ref:            https://rdap.arin.net/registry/autnum/63261
             
             
             OrgName:        Graham Holdings Company
             OrgId:          GH-82
             Address:        1300 North 17th Street
             City:           Arlington
             StateProv:      VA
             PostalCode:     22209
             Country:        US
             RegDate:        2014-09-22
             Updated:        2014-09-22
             Ref:            https://rdap.arin.net/registry/entity/GH-82
             
             
             OrgAbuseHandle: CIA30-ARIN
             OrgAbuseName:   Corporate IT Administrators
             OrgAbusePhone:  +1-703-345-6400 
             OrgAbuseEmail:  CorpITAdmin@ghco.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CIA30-ARIN
             
             OrgTechHandle: CIA30-ARIN
             OrgTechName:   Corporate IT Administrators
             OrgTechPhone:  +1-703-345-6400 
             OrgTechEmail:  CorpITAdmin@ghco.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CIA30-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.
             #