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AS397450 City of Fairfield | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

City of Fairfield fairfield.ca.gov

US 1 Routes

AS Data

AS397450

AS397450 – City of Fairfield

AS Number	397450
AS Name	COF94533
Organization	City of Fairfield(cf-1476)
Country	US
Website	fairfield.ca.gov
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2019-04-02

ASN Intelligence API for production workflows

Use ASN data for AS397450 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
64.162.152.0/23	AS397450	City of Fairfield	City of Fairfield	512

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:       397450
ASName:         COF94533
ASHandle:       AS397450
RegDate:        2019-04-02
Updated:        2019-04-02    
Ref:            https://rdap.arin.net/registry/autnum/397450


OrgName:        City of Fairfield
OrgId:          CF-1476
Address:        1000 Webster St
City:           Fairfield
StateProv:      CA
PostalCode:     94533
Country:        US
RegDate:        2019-01-25
Updated:        2019-01-25
Ref:            https://rdap.arin.net/registry/entity/CF-1476


OrgNOCHandle: SINDI-ARIN
OrgNOCName:   Sindicic, Eudora 
OrgNOCPhone:  +1-707-428-7527 
OrgNOCEmail:  it-infrastructure-team@fairfield.ca.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/SINDI-ARIN

OrgTechHandle: SINDI-ARIN
OrgTechName:   Sindicic, Eudora 
OrgTechPhone:  +1-707-428-7527 
OrgTechEmail:  it-infrastructure-team@fairfield.ca.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/SINDI-ARIN

OrgAbuseHandle: SINDI-ARIN
OrgAbuseName:   Sindicic, Eudora 
OrgAbusePhone:  +1-707-428-7527 
OrgAbuseEmail:  it-infrastructure-team@fairfield.ca.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SINDI-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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "397450",
    "as_handle" : "AS397450",
    "as_name" : "COF94533",
    "tech_contacts" : [ "SINDI-ARIN" ],
    "abuse_contacts" : [ "SINDI-ARIN" ],
    "date_created" : "2019-04-02",
    "date_updated" : "2019-04-02",
    "source" : "https://rdap.arin.net/registry/autnum/397450"
  } ],
  "organization" : {
    "handle" : "CF-1476",
    "name" : "City of Fairfield",
    "address" : [ "1000 Webster St", "Fairfield", "CA", "94533", "US" ],
    "street" : "Webster St",
    "city" : "Fairfield",
    "state" : "CA",
    "zip_code" : "94533",
    "country" : [ "US" ],
    "date_created" : "2019-01-25",
    "date_updated" : "2019-01-25",
    "source" : "https://rdap.arin.net/registry/entity/CF-1476",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "SINDI-ARIN",
    "name" : "Sindicic, Eudora",
    "email" : [ "it-infrastructure-team@fairfield.ca.gov" ],
    "phone" : [ "+1-707-428-7527" ],
    "source" : "https://rdap.arin.net/registry/entity/SINDI-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "SINDI-ARIN",
    "name" : "Sindicic, Eudora",
    "email" : [ "it-infrastructure-team@fairfield.ca.gov" ],
    "phone" : [ "+1-707-428-7527" ],
    "source" : "https://rdap.arin.net/registry/entity/SINDI-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS33667	Comcast Cable Communications, LLC	US
AS7018	AT&T Enterprises, LLC	US
AS33651	Comcast Cable Communications, LLC	US

Upstreams

AS Number	Description	Country
AS33667	Comcast Cable Communications, LLC	US
AS7018	AT&T Enterprises, LLC	US
AS33651	Comcast Cable Communications, LLC	US

Frequently Asked Questions

What is ASN AS397450?

ASN AS397450 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397450?

AS397450 is listed under City of Fairfield.

What do peers, upstreams, and downstreams mean?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

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.