ASN AS39990 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS39990?

AS39990 is listed under Boulder County Government.

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.

AS39990 Boulder County Government

ASN Lookup Tool

Boulder County Government bouldercounty.org

US 2 Routes

AS Data

AS39990

AS39990 – Boulder County Government

AS Number	39990
AS Name	BCG
Organization	Boulder County Government(bcg)
Country	US
Website	bouldercounty.org
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2006-06-01

ASN Intelligence API for production workflows

Use ASN data for AS39990 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.188.155.0/24	AS39990	Boulder County Government	Boulder County Government	256
97.107.70.0/24	AS39990	Boulder County Government	Boulder County Government	256

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:       39990
ASName:         BCG
ASHandle:       AS39990
RegDate:        2006-06-01
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/39990


OrgName:        Boulder County Government
OrgId:          BCG
Address:        Information Technology Division
Address:        P.O. Box 471
City:           Boulder
StateProv:      CO
PostalCode:     80306
Country:        US
RegDate:        1992-07-15
Updated:        2019-09-06
Ref:            https://rdap.arin.net/registry/entity/BCG


OrgAbuseHandle: NETWO9001-ARIN
OrgAbuseName:   NetworkTeam
OrgAbusePhone:  +1-303-441-3538 
OrgAbuseEmail:  itnetwork@bouldercounty.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO9001-ARIN

OrgNOCHandle: NETWO9001-ARIN
OrgNOCName:   NetworkTeam
OrgNOCPhone:  +1-303-441-3538 
OrgNOCEmail:  itnetwork@bouldercounty.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO9001-ARIN

OrgRoutingHandle: NETWO9001-ARIN
OrgRoutingName:   NetworkTeam
OrgRoutingPhone:  +1-303-441-3538 
OrgRoutingEmail:  itnetwork@bouldercounty.org
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETWO9001-ARIN

OrgDNSHandle: NETWO9001-ARIN
OrgDNSName:   NetworkTeam
OrgDNSPhone:  +1-303-441-3538 
OrgDNSEmail:  itnetwork@bouldercounty.org
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETWO9001-ARIN

OrgTechHandle: AJR29-ARIN
OrgTechName:   Rees, Aaron J
OrgTechPhone:  +1-303-441-3916 
OrgTechEmail:  arees@bouldercounty.org
OrgTechRef:    https://rdap.arin.net/registry/entity/AJR29-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
AS393552	Longmont Power & Communications	US
AS14041	University Corporation for Atmospheric Research	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS393552	Longmont Power & Communications	US
AS14041	University Corporation for Atmospheric Research	US
AS6461	Zayo Bandwidth	US