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AS36513 BRETSA | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

BRETSA bretsaps.org

US 2 Routes

AS Data

AS36513

AS36513 – BRETSA

AS Number	36513
AS Name	BRETSA
Organization	BRETSA(bretsa)
Country	US
Website	bretsaps.org
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2011-04-07

ASN Intelligence API for production workflows

Use ASN data for AS36513 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
97.107.73.0/24	AS36513	BRETSA	BRETSA	256
97.107.72.0/24	AS36513	BRETSA	BRETSA	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:       36513
ASName:         BRETSA
ASHandle:       AS36513
RegDate:        2011-04-07
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/36513


OrgName:        BRETSA
OrgId:          BRETSA
Address:        3280 Airport Rd
City:           Boulder
StateProv:      CO
PostalCode:     80301
Country:        US
RegDate:        2011-03-04
Updated:        2018-04-26
Ref:            https://rdap.arin.net/registry/entity/BRETSA


OrgTechHandle: ADMIN2473-ARIN
OrgTechName:   Admin
OrgTechPhone:  +1-720-564-2940 
OrgTechEmail:  nkacere@bretsaps.org
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN2473-ARIN

OrgAbuseHandle: ADMIN2473-ARIN
OrgAbuseName:   Admin
OrgAbusePhone:  +1-720-564-2940 
OrgAbuseEmail:  nkacere@bretsaps.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN2473-ARIN

OrgNOCHandle: ADMIN2473-ARIN
OrgNOCName:   Admin
OrgNOCPhone:  +1-720-564-2940 
OrgNOCEmail:  nkacere@bretsaps.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/ADMIN2473-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
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US

Frequently Asked Questions

What is ASN AS36513?

ASN AS36513 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS36513?

AS36513 is listed under BRETSA.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.