ASN AS13979 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS13979?

AS13979 is listed under AT&T Enterprises, LLC.

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.

AS13979 AT&T Enterprises, LLC

ASN Lookup Tool

AT&T Enterprises, LLC att.com

US 3 Routes

AS Data

AS13979

AS13979 – AT&T Enterprises, LLC

AS Number	13979
AS Name	ATT-IPFR
Organization	AT&T Enterprises, LLC(ael-360)
Country	US
Website	att.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	1999-09-28

ASN Intelligence API for production workflows

Use ASN data for AS13979 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
15.4.64.0/18	AS13979	AT&T Enterprises, LLC	HP Inc.	16384
15.98.64.0/18	AS13979	AT&T Enterprises, LLC	HP Inc.	16384
15.12.64.0/18	AS13979	AT&T Enterprises, LLC	HP Inc.	16384

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:       13979
ASName:         ATT-IPFR
ASHandle:       AS13979
RegDate:        1999-09-28
Updated:        2025-03-18    
Ref:            https://rdap.arin.net/registry/autnum/13979



OrgName:        AT&T Enterprises, LLC
OrgId:          AEL-360
Address:        208 S. Akard St.
City:           Dallas
StateProv:      TX
PostalCode:     75202
Country:        US
RegDate:        2024-11-22
Updated:        2025-10-29
Ref:            https://rdap.arin.net/registry/entity/AEL-360


OrgTechHandle: ZS44-ARIN
OrgTechName:   IPAdmin-ATT Internet Services
OrgTechPhone:  +1-888-510-5545 
OrgTechEmail:  ipadmin@att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZS44-ARIN

OrgAbuseHandle: ABUSE7-ARIN
OrgAbuseName:   abuse
OrgAbusePhone:  +1-919-319-8167 
OrgAbuseEmail:  abuse@att.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7-ARIN

OrgRoutingHandle: ROUTI59-ARIN
OrgRoutingName:   Routing POC
OrgRoutingPhone:  +1-999-999-9999 
OrgRoutingEmail:  DL-routing_poc@att.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI59-ARIN

OrgTechHandle: ICC-ARIN
OrgTechName:   IP Team
OrgTechPhone:  +1-888-876-2382 
OrgTechEmail:  rm-ipspecialist@att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ICC-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
AS8034	AT&T WorldNet	US
AS2576	U. S. Department of Transportation	US
AS10616	National Oceanic and Atmospheric Administration	US
AS14298	Environmental Protection Agency	US
AS1540	Headquarters, USAISC	US
AS30016	North American Telecommunications Corporation	US
AS4185	AT&T Enterprises, LLC	US
AS8035	AT&T WorldNet	US
AS33	HP Inc.	US
AS8076	Department of Housing and Urban Development	US

Upstreams

AS Number	Description	Country
AS1540	Headquarters, USAISC	US
AS30016	North American Telecommunications Corporation	US
AS4185	AT&T Enterprises, LLC	US
AS33	HP Inc.	US
AS3423	AT&T Enterprises, LLC	US
AS4473	AT&T Enterprises, LLC	US

Downstreams

AS Number	Description	Country
AS8034	AT&T WorldNet	US
AS2576	U. S. Department of Transportation	US
AS10616	National Oceanic and Atmospheric Administration	US
AS14298	Environmental Protection Agency	US
AS8035	AT&T WorldNet	US
AS8076	Department of Housing and Urban Development	US

Contacts

Email Contacts

DL-routing_poc@att.com ipadmin@att.com rm-ipspecialist@att.com

Abuse Contacts

abuse@att.net

Legacy Routes

204.10.158.0/24 15.8.64.0/18 204.10.159.0/24 2608:14a:2300::/40 15.0.64.0/18