Report for 53811

Name

SFCL-HNP - San Francisco Chronicle, LLC, 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.

53811 SFCL-HNP, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS701           UUNET, US
    AS3356          LEVEL3, US
    AS7018          ATT-INTERNET4, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
33497 AS53811        ORIGIN  Originate:       1280 /21.68  Transit:          0 /0.00  SFCL-HNP, 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       %
48474 AS53811       SFCL-HNP, US                                       2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  198.134.145.0/24     57866 3356 53811       
  199.16.116.0/22      7018 53811             

Whois Entry

whois: 402603

IANA has recorded AS53811 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS53811\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:       53811
             ASName:         SFCL-HNP
             ASHandle:       AS53811
             RegDate:        2011-06-02
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/53811
             
             
             OrgName:        San Francisco Chronicle, LLC
             OrgId:          SFCL-1
             Address:        901 Mission St.
             City:           San Francisco
             StateProv:      CA
             PostalCode:     94013
             Country:        US
             RegDate:        2007-08-16
             Updated:        2024-11-21
             Ref:            https://rdap.arin.net/registry/entity/SFCL-1
             
             
             OrgTechHandle: HTSNO-ARIN
             OrgTechName:   HTS NOC-Admin
             OrgTechPhone:  +1-704-348-8000 
             OrgTechEmail:  HTS-ARIN-Admin@hearst.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/HTSNO-ARIN
             
             OrgAbuseHandle: HTSNO-ARIN
             OrgAbuseName:   HTS NOC-Admin
             OrgAbusePhone:  +1-704-348-8000 
             OrgAbuseEmail:  HTS-ARIN-Admin@hearst.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/HTSNO-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.
             #