ASN AS12054 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS12054?

AS12054 is listed under Alameda County.

What do peers, upstreams, and downstreams mean in ASN data?

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 shown for an ASN?

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

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS12054 Alameda County | IPGeolocation.io

ASN Lookup Tool

Alameda County acgov.org

US 5 Routes

AS Data

AS12054

AS12054 – Alameda County

AS Number	12054
AS Name	ALAMEDACOUNTYDATAPROCESSING
Organization	Alameda County(acdp)
Country	US
Website	acgov.org
Number of IPv4 Routes	5
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2007-01-17

ASN Intelligence API for production workflows

Use ASN data for AS12054 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
166.107.80.0/20	AS12054	Alameda County	Alameda County	4096
166.107.72.0/21	AS12054	Alameda County	Alameda County	2048
166.107.71.0/24	AS12054	Alameda County	Alameda County	256
166.107.96.0/20	AS12054	Alameda County	Alameda County	4096
166.107.64.0/18	AS12054	Alameda County	Alameda County	16384

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:       12054
ASName:         ALAMEDACOUNTYDATAPROCESSING
ASHandle:       AS12054
RegDate:        2007-01-17
Updated:        2017-11-02
Comment:        http://www.acgov.org    
Ref:            https://rdap.arin.net/registry/autnum/12054


OrgName:        Alameda County
OrgId:          ACDP
Address:        1221 Oak Street
Address:        RM 41, ITD Data Center
City:           Oakland
StateProv:      CA
PostalCode:     94612
Country:        US
RegDate:        1993-12-03
Updated:        2019-11-13
Ref:            https://rdap.arin.net/registry/entity/ACDP


OrgTechHandle: NETWO8351-ARIN
OrgTechName:   Network Services
OrgTechPhone:  +1-510-383-5000 
OrgTechEmail:  ns@acgov.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO8351-ARIN

OrgAbuseHandle: NETWO8351-ARIN
OrgAbuseName:   Network Services
OrgAbusePhone:  +1-510-383-5000 
OrgAbuseEmail:  ns@acgov.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO8351-ARIN

OrgNOCHandle: NETWO8351-ARIN
OrgNOCName:   Network Services
OrgNOCPhone:  +1-510-383-5000 
OrgNOCEmail:  ns@acgov.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO8351-ARIN

RNOCHandle: IHD2-ARIN
RNOCName:   ITD Help Desk
RNOCPhone:  +1-510-272-3744 
RNOCEmail:  itdhelpdesk@acgov.org
RNOCRef:    https://rdap.arin.net/registry/entity/IHD2-ARIN

RNOCHandle: NETWO8351-ARIN
RNOCName:   Network Services
RNOCPhone:  +1-510-383-5000 
RNOCEmail:  ns@acgov.org
RNOCRef:    https://rdap.arin.net/registry/entity/NETWO8351-ARIN

RTechHandle: NETWO8351-ARIN
RTechName:   Network Services
RTechPhone:  +1-510-383-5000 
RTechEmail:  ns@acgov.org
RTechRef:    https://rdap.arin.net/registry/entity/NETWO8351-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
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