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AS22139 County of Marin | 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

County of Marin marincounty.gov

US 3 Routes

AS Data

AS22139

AS22139 – County of Marin

AS Number	22139
AS Name	MARIN-COUNTY-01
Organization	County of Marin (county-31)
Country	US
Website	marincounty.gov
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2023-08-10

ASN Intelligence API for production workflows

Use ASN data for AS22139 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.88.79.0/24	AS22139	County of Marin	County of Marin	256
199.88.76.0/23	AS22139	County of Marin	County of Marin	512
199.88.114.0/23	AS22139	County of Marin	County of Marin	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:       22139
ASName:         MARIN-COUNTY-01
ASHandle:       AS22139
RegDate:        2023-08-10
Updated:        2023-08-10
Ref:            https://rdap.arin.net/registry/autnum/22139


OrgName:        County of Marin
OrgId:          COUNTY-31
Address:        3501 Civic Center Drive
City:           San Rafael
StateProv:      CA
PostalCode:     94903
Country:        US
RegDate:        1994-03-28
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/COUNTY-31


OrgAbuseHandle: HOSTM1288-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-415-473-4732 
OrgAbuseEmail:  hostmaster@marincounty.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM1288-ARIN

OrgTechHandle: HOSTM1288-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-415-473-4732 
OrgTechEmail:  hostmaster@marincounty.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM1288-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" : "22139",
    "as_handle" : "AS22139",
    "as_name" : "MARIN-COUNTY-01",
    "tech_contacts" : [ "HOSTM1288-ARIN" ],
    "abuse_contacts" : [ "HOSTM1288-ARIN" ],
    "date_created" : "2023-08-10",
    "date_updated" : "2023-08-10",
    "source" : "https://rdap.arin.net/registry/autnum/22139"
  } ],
  "organization" : {
    "handle" : "COUNTY-31",
    "name" : "County of Marin",
    "address" : [ "3501 Civic Center Drive", "San Rafael", "CA", "94903", "US" ],
    "street" : "Civic Center Drive",
    "city" : "San Rafael",
    "state" : "CA",
    "zip_code" : "94903",
    "country" : [ "US" ],
    "date_created" : "1994-03-28",
    "date_updated" : "2011-09-24",
    "source" : "https://rdap.arin.net/registry/entity/COUNTY-31",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "HOSTM1288-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@marincounty.gov" ],
    "phone" : [ "+1-415-473-4732" ],
    "source" : "https://rdap.arin.net/registry/entity/HOSTM1288-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "HOSTM1288-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@marincounty.gov" ],
    "phone" : [ "+1-415-473-4732" ],
    "source" : "https://rdap.arin.net/registry/entity/HOSTM1288-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS46375	Sonic Telecom LLC	US

Upstreams

AS Number	Description	Country
AS46375	Sonic Telecom LLC	US

Frequently Asked Questions

What is ASN AS22139?

ASN AS22139 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS22139?

AS22139 is listed under County of Marin.

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.