ASN AS23309 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23309?

AS23309 is listed under Contra Costa County Office of Education.

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.

AS23309 Contra Costa County Office of Education

ASN Lookup Tool

Contra Costa County Office of Education cccoe.k12.ca.us

US 2 Routes

AS Data

AS23309

AS23309 – Contra Costa County Office of Education

AS Number	23309
AS Name	CCCOE-NET
Organization	Contra Costa County Office of Education(cccoe)
Country	US
Website	cccoe.k12.ca.us
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2002-02-26

ASN Intelligence API for production workflows

Use ASN data for AS23309 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

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
169.199.0.0/16	AS23309	Contra Costa County Office of Education	Contra Costa County Office of Education	65536
2607:fb78::/32	AS23309	Contra Costa County Office of Education	Contra Costa County Office of Education	~79×10²⁷

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:       23309
ASName:         CCCOE-NET
ASHandle:       AS23309
RegDate:        2002-02-26
Updated:        2012-03-20    
Ref:            https://rdap.arin.net/registry/autnum/23309


OrgName:        Contra Costa County Office of Education
OrgId:          CCCOE
Address:        77 Santa Barbara Road
Address:        Tech Services
City:           Pleasant Hill
StateProv:      CA
PostalCode:     94523
Country:        US
RegDate:        1995-03-24
Updated:        2022-03-18
Ref:            https://rdap.arin.net/registry/entity/CCCOE


OrgNOCHandle: SAC62-ARIN
OrgNOCName:   Carpenter, Scott Andrew
OrgNOCPhone:  +1-925-942-5363 
OrgNOCEmail:  scarpenter@cccoe.k12.ca.us
OrgNOCRef:    https://rdap.arin.net/registry/entity/SAC62-ARIN

OrgDNSHandle: SAC62-ARIN
OrgDNSName:   Carpenter, Scott Andrew
OrgDNSPhone:  +1-925-942-5363 
OrgDNSEmail:  scarpenter@cccoe.k12.ca.us
OrgDNSRef:    https://rdap.arin.net/registry/entity/SAC62-ARIN

OrgDNSHandle: NASHS7-ARIN
OrgDNSName:   Nash, Spencer 
OrgDNSPhone:  +1-925-942-3405 
OrgDNSEmail:  snash1@cccoe.k12.ca.us
OrgDNSRef:    https://rdap.arin.net/registry/entity/NASHS7-ARIN

OrgAbuseHandle: SAC62-ARIN
OrgAbuseName:   Carpenter, Scott Andrew
OrgAbusePhone:  +1-925-942-5363 
OrgAbuseEmail:  scarpenter@cccoe.k12.ca.us
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SAC62-ARIN

OrgAbuseHandle: SANDE452-ARIN
OrgAbuseName:   Sanderson, David  
OrgAbusePhone:  +1-925-942-3462 
OrgAbuseEmail:  dsanderson@cccoe.k12.ca.us
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SANDE452-ARIN

OrgRoutingHandle: SAC62-ARIN
OrgRoutingName:   Carpenter, Scott Andrew
OrgRoutingPhone:  +1-925-942-5363 
OrgRoutingEmail:  scarpenter@cccoe.k12.ca.us
OrgRoutingRef:    https://rdap.arin.net/registry/entity/SAC62-ARIN

OrgTechHandle: SANDE452-ARIN
OrgTechName:   Sanderson, David  
OrgTechPhone:  +1-925-942-3462 
OrgTechEmail:  dsanderson@cccoe.k12.ca.us
OrgTechRef:    https://rdap.arin.net/registry/entity/SANDE452-ARIN

OrgAbuseHandle: NASHS7-ARIN
OrgAbuseName:   Nash, Spencer 
OrgAbusePhone:  +1-925-942-3405 
OrgAbuseEmail:  snash1@cccoe.k12.ca.us
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NASHS7-ARIN

OrgTechHandle: SAC62-ARIN
OrgTechName:   Carpenter, Scott Andrew
OrgTechPhone:  +1-925-942-5363 
OrgTechEmail:  scarpenter@cccoe.k12.ca.us
OrgTechRef:    https://rdap.arin.net/registry/entity/SAC62-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
AS2152	CENIC	US

Upstreams

AS Number	Description	Country
AS2152	CENIC	US