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	Prefix	Description
	166.107.64.0/18	Alameda County
	166.107.71.0/24	Alameda County
	166.107.72.0/21	Alameda County
	166.107.80.0/20	Alameda County
	166.107.96.0/20	Alameda County

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS7018	AT&T Enterprises, LLC	✔	✘
	AS33667	Comcast Cable Communications, LLC	✔	✘
	AS33651	Comcast Cable Communications, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS7018	AT&T Enterprises, LLC	✔	✘
	AS33667	Comcast Cable Communications, LLC	✔	✘
	AS33651	Comcast Cable Communications, LLC	✔	✘

ASHandle:       AS12054
OrgID:          ACDP
ASName:         ALAMEDACOUNTYDATAPROCESSING
ASNumber:       12054
RegDate:        2007-01-17
Comment:        http://www.acgov.org
Updated:        2017-11-02
TechHandle:     NETWO8351-ARIN
NOCHandle:      IHD2-ARIN
NOCHandle:      NETWO8351-ARIN
Source:         ARIN



OrgID:          ACDP
OrgName:        Alameda County
CanAllocate:    
Street:         1221 Oak Street
Street:         RM 41, ITD Data Center
City:           Oakland
State/Prov:     CA
Country:        US
PostalCode:     94612
RegDate:        1993-12-03
Updated:        2019-11-13
OrgAdminHandle: NETWO8351-ARIN
OrgTechHandle:  NETWO8351-ARIN
OrgAbuseHandle: NETWO8351-ARIN
OrgNOCHandle:   NETWO8351-ARIN
Source:         ARIN





OrgAdminHandle:       NETWO8351-ARIN
OrgAdminName:          Network Services
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NETWO8351-ARIN
OrgTechName:           Network Services
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NETWO8351-ARIN
OrgAbuseName:          Network Services
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         NETWO8351-ARIN
OrgNOCName:            Network Services
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           NETWO8351-ARIN
TechName:              Network Services
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            IHD2-ARIN
NOCName:               ITD Help Desk
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            NETWO8351-ARIN
NOCName:               Network Services
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-14T03:28:33Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-as209-cust	1818
LEVEL3	as-lumen-customers-asns	10695