ASN AS7151 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS7151?

AS7151 is listed under Cologix, Inc.

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.

AS7151 Cologix, Inc | IPGeolocation.io

ASN Lookup Tool

Cologix, Inc cologix.com

US 6 Routes

AS Data

AS7151

AS7151 – Cologix, Inc

AS Number	7151
AS Name	COLOGIX-SV
Organization	Cologix, Inc(colog-8)
Country	US
Website	cologix.com
Number of IPv4 Routes	5
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1996-09-20

ASN Intelligence API for production workflows

Use ASN data for AS7151 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
72.20.96.0/19	AS7151	Cologix, Inc	Corezon	8192
209.128.96.0/19	AS7151	Cologix, Inc	NetResults Corporation	8192
209.128.64.0/19	AS7151	Cologix, Inc	Utimaco, Inc	8192
72.172.176.0/20	AS7151	Cologix, Inc	EPROVIDER	4096
209.128.64.0/18	AS7151	Cologix, Inc	Utimaco, Inc	16384
2607:fce0::/32	AS7151	Cologix, Inc	Cologix, Inc	~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:       7151
ASName:         COLOGIX-SV
ASHandle:       AS7151
RegDate:        1996-09-20
Updated:        2025-05-07    
Ref:            https://rdap.arin.net/registry/autnum/7151


OrgName:        Cologix, Inc
OrgId:          COLOG-8
Address:        1601 19th Street
Address:        Suite 650
City:           Denver
StateProv:      CO
PostalCode:     80202
Country:        US
RegDate:        2021-02-12
Updated:        2025-05-07
Ref:            https://rdap.arin.net/registry/entity/COLOG-8


OrgNOCHandle: NETWO9665-ARIN
OrgNOCName:   Network Engineering
OrgNOCPhone:  +1-844-449-4357 
OrgNOCEmail:  noc@cologix.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO9665-ARIN

OrgAbuseHandle: ABUSE5526-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-720-230-7000 
OrgAbuseEmail:  abuse@cologix.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5526-ARIN

OrgTechHandle: BECKJ20-ARIN
OrgTechName:   Beck, Josh 
OrgTechPhone:  +1-855-449-4357 
OrgTechEmail:  josh.beck@cologix.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BECKJ20-ARIN

OrgTechHandle: JOBAY1-ARIN
OrgTechName:   Jobay, Mike 
OrgTechPhone:  +1-973-590-5177 
OrgTechEmail:  mike.jobay@cologix.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JOBAY1-ARIN

OrgTechHandle: NOC33671-ARIN
OrgTechName:   NOC
OrgTechPhone:  +1-720-230-7000 
OrgTechEmail:  noc@cologix.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC33671-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
AS17109	Calitech	US
AS1239	Cogent Communications, LLC	US
AS6461	Zayo Bandwidth	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS6461	Zayo Bandwidth	US
AS174	Cogent Communications, LLC	US

Downstreams

AS Number	Description	Country
AS17109	Calitech	US

Contacts

Email Contacts

josh.beck@cologix.com mike.jobay@cologix.com noc@cologix.com

Abuse Contacts

abuse@cologix.com