ASN Lookup Tool

San Francisco International Airport flysfo.com US US 11 Routes

AS Data

AS26231

AS26231 – San Francisco International Airport

AS Number 26231
AS Name SFIA-ASN
Organization San Francisco International Airport(sfia)
Country US
Website flysfo.com
Number of IPv4 Routes 11
Number of IPv6 Routes 0
ASN type GOVERNMENT
Registry ARIN
Date Allocated 2002-08-02

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Use ASN data for AS26231 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
216.9.96.0/20 4096
216.9.96.0/24 256
216.9.109.0/24 256
216.9.108.0/24 256
216.9.105.0/24 256
216.9.98.0/24 256
216.9.99.0/24 256
216.9.106.0/24 256
216.9.100.0/24 256
216.9.107.0/24 256

Raw Whois Response

#
# 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


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:  +1-650-296-0926 
OrgTechEmail:  Isaac.potter@flysfo.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPO2-ARIN

OrgAbuseHandle: SFOIS-ARIN
OrgAbuseName:   SFO ISS
OrgAbusePhone:  +1-650-821-4349 
OrgAbuseEmail:  abuse@flysfo.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SFOIS-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.
#

Parsed Whois Response

Peers

AS Number Description Country
AS7018 AT&T Enterprises, LLC US
AS6939 Hurricane Electric LLC US

Upstreams

AS Number Description Country
AS7018 AT&T Enterprises, LLC US
AS6939 Hurricane Electric LLC US

Contacts

Email Contacts

Isaac.potter@flysfo.com

Abuse Contacts

abuse@flysfo.com

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Frequently Asked Questions

ASN AS26231 is an Autonomous System Number used to identify a network for BGP internet routing.
AS26231 is listed under San Francisco International Airport.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.