Report for 26231

Name

SFIA-ASN - San Francisco International Airport, 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.

26231 SFIA-ASN, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6939          HURRICANE, US
    AS7018          ATT-INTERNET4, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
13263 AS26231        ORIGIN  Originate:       6656 /19.30  Transit:          0 /0.00  SFIA-ASN, 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       %
 5029 AS26231       SFIA-ASN, US                                      11     10      0      1     10  90.91%


  Prefix               AS Path                              Aggregation Suggestion
  216.9.96.0/20        6939 26231             
  216.9.96.0/24        6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.98.0/24        6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.99.0/24        6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.100.0/24       6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.105.0/24       6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.106.0/24       6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.107.0/24       6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.108.0/24       6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.109.0/24       6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231
  216.9.110.0/24       6939 26231           - Withdrawn - matching aggregate 216.9.96.0/20 6939 26231

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

AS26231   10 More Specifics   11 Total Advertisements   SFIA-ASN, US
    216.9.96.0/24                 216.9.96.0/20
    216.9.98.0/24                 216.9.96.0/20
    216.9.99.0/24                 216.9.96.0/20
    216.9.100.0/24                216.9.96.0/20
    216.9.105.0/24                216.9.96.0/20
    216.9.106.0/24                216.9.96.0/20
    216.9.107.0/24                216.9.96.0/20
    216.9.108.0/24                216.9.96.0/20
    216.9.109.0/24                216.9.96.0/20
    216.9.110.0/24                216.9.96.0/20

Whois Entry

whois: 402590

IANA has recorded AS26231 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS26231\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:       26231
             ASName:         SFIA-ASN
             ASHandle:       AS26231
             RegDate:        2002-08-02
             Updated:        2013-02-26
             Ref:            https://rdap.arin.net/registry/autnum/26231
             
             
             OrgName:        San Francisco International Airport
             OrgId:          SFIA
             Address:        Information Technology & Telecommunications
             Address:        P.O. Box 8097
             City:           San Francisco
             StateProv:      CA
             PostalCode:     94128
             Country:        US
             RegDate:        1992-10-13
             Updated:        2014-07-30
             Ref:            https://rdap.arin.net/registry/entity/SFIA
             
             
             OrgAbuseHandle: SFOIS-ARIN
             OrgAbuseName:   SFO ISS
             OrgAbusePhone:  +1-650-821-4349 
             OrgAbuseEmail:  abuse@flysfo.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/SFOIS-ARIN
             
             OrgNOCHandle: SFONO-ARIN
             OrgNOCName:   SFO NOC
             OrgNOCPhone:  +1-650-821-4322 
             OrgNOCEmail:  noc@flysfo.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/SFONO-ARIN
             
             OrgTechHandle: IPO2-ARIN
             OrgTechName:   Potter, Isaac 
             OrgTechPhone:  +1-650-821-2781 
             OrgTechEmail:  Isaac.potter@flysfo.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/IPO2-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.
             #