ASN AS4473 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS4473?

AS4473 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.

AS4473 AT&T Enterprises, LLC | IPGeolocation.io

ASN Lookup Tool

AT&T Enterprises, LLC

US 32 Routes

AS Data

AS4473

AS4473 – AT&T Enterprises, LLC

AS Number	4473
AS Name	ATTIS-ASN4473
Organization	AT&T Enterprises, LLC (ael-360)
Country	US
Number of IPv4 Routes	32
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	1995-03-08

ASN Intelligence API for production workflows

Use ASN data for AS4473 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
12.226.123.0/24	AS4473	AT&T Enterprises, LLC	AT&T Enterprises, LLC	256
207.140.216.0/23	AS4473	AT&T Enterprises, LLC	AT&T Services, Inc.	512
209.37.107.0/24	AS4473	AT&T Enterprises, LLC	AT&T Enterprises, LLC	256
209.65.163.0/24	AS4473	AT&T Enterprises, LLC	ATT CORP INTRA LEGACY T LEGAL	256
151.107.0.0/20	AS4473	AT&T Enterprises, LLC	U.S. Department of Veterans Affairs	4096
209.37.109.0/24	AS4473	AT&T Enterprises, LLC	AT&T Services, Inc.	256
209.37.104.0/24	AS4473	AT&T Enterprises, LLC	AT&T Services, Inc.	256
12.97.148.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
12.29.119.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
12.96.46.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
207.140.220.0/22	AS4473	AT&T Enterprises, LLC	AT&T Services, Inc.	1024
12.71.77.0/24	AS4473	AT&T Enterprises, LLC	TCORP FAX INTERNAL AVPN ATT	256
12.96.45.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
12.226.120.0/24	AS4473	AT&T Enterprises, LLC	AT&T Enterprises, LLC	256
209.37.110.0/24	AS4473	AT&T Enterprises, LLC	AT&T Services, Inc.	256
209.65.9.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
12.29.116.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
209.37.106.0/24	AS4473	AT&T Enterprises, LLC	AT&T Services, Inc.	256
12.105.210.0/24	AS4473	AT&T Enterprises, LLC	TCORP FAX INTERNAL AVPN ATT	256
209.37.105.0/24	AS4473	AT&T Enterprises, LLC	AT&T Enterprises, LLC	256
209.65.161.0/24	AS4473	AT&T Enterprises, LLC	ATT CORP INTRA LEGACY T LEGAL	256
209.65.160.0/24	AS4473	AT&T Enterprises, LLC	ATT CORP INTRA LEGACY T LEGAL	256
165.13.0.0/16	AS4473	AT&T Enterprises, LLC	U.S. Agency for International Development	65536
12.226.121.0/24	AS4473	AT&T Enterprises, LLC	AT&T Enterprises, LLC	256
12.29.117.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
209.65.8.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
209.65.164.0/24	AS4473	AT&T Enterprises, LLC	ATT CORP INTRA LEGACY T LEGAL	256
206.197.1.0/24	AS4473	AT&T Enterprises, LLC	Mueller Industries, Inc.	256
12.29.118.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
12.17.241.0/24	AS4473	AT&T Enterprises, LLC	TCORP FA PRODUCT TO PRODUCT	256
12.226.122.0/24	AS4473	AT&T Enterprises, LLC	AT&T Enterprises, LLC	256
198.183.168.0/24	AS4473	AT&T Enterprises, LLC	Renasant Bank	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:       4473
ASName:         ATTIS-ASN4473
ASHandle:       AS4473
RegDate:        1995-03-08
Updated:        2024-12-05
Ref:            https://rdap.arin.net/registry/autnum/4473



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:        2026-06-05
Ref:            https://rdap.arin.net/registry/entity/AEL-360


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

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

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


#
# 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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "4473",
    "as_handle" : "AS4473",
    "as_name" : "ATTIS-ASN4473",
    "tech_contacts" : [ "ICC-ARIN", "ROUTI59-ARIN", "ZS44-ARIN" ],
    "abuse_contacts" : [ "ABUSE7-ARIN" ],
    "date_created" : "1995-03-08",
    "date_updated" : "2024-12-05",
    "source" : "https://rdap.arin.net/registry/autnum/4473"
  } ],
  "organization" : {
    "handle" : "AEL-360",
    "name" : "AT&T Enterprises, LLC",
    "address" : [ "208 S. Akard St.", "Dallas", "TX", "75202", "US" ],
    "street" : "S. Akard St.",
    "city" : "Dallas",
    "state" : "TX",
    "zip_code" : "75202",
    "country" : [ "US" ],
    "date_created" : "2024-11-22",
    "date_updated" : "2026-06-05",
    "source" : "https://rdap.arin.net/registry/entity/AEL-360",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "ICC-ARIN",
    "name" : "IP Team",
    "email" : [ "rm-ipspecialist@att.com" ],
    "phone" : [ "+1-888-876-2382" ],
    "source" : "https://rdap.arin.net/registry/entity/ICC-ARIN"
  }, {
    "handle" : "ROUTI59-ARIN",
    "name" : "Routing POC",
    "email" : [ "routing_poc@att.com" ],
    "phone" : [ "+1-999-999-9999" ],
    "source" : "https://rdap.arin.net/registry/entity/ROUTI59-ARIN"
  }, {
    "handle" : "ZS44-ARIN",
    "name" : "IPAdmin-ATT Internet Services",
    "email" : [ "ipadmin@att.com" ],
    "phone" : [ "+1-888-510-5545" ],
    "source" : "https://rdap.arin.net/registry/entity/ZS44-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ABUSE7-ARIN",
    "name" : "abuse",
    "email" : [ "abuse@att.net" ],
    "phone" : [ "+1-919-319-8167" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE7-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS13979	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US

Downstreams

AS Number	Description	Country
AS13979	AT&T Enterprises, LLC	US

Contacts

Email Contacts

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

Abuse Contacts

abuse@att.net