ASN AS25993 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS25993?

AS25993 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.

AS25993 AT&T Enterprises, LLC

ASN Lookup Tool

AT&T Enterprises, LLC semail.att.com

US 24 Routes

AS Data

AS25993

AS25993 – AT&T Enterprises, LLC

AS Number	25993
AS Name	ATT-LABS-AUSTIN-TX
Organization	AT&T Enterprises, LLC (ael-360)
Country	US
Website	semail.att.com
Number of IPv4 Routes	22
Number of IPv6 Routes	2
ASN type	ISP
Registry	ARIN
Date Allocated	2002-06-12

ASN Intelligence API for production workflows

Use ASN data for AS25993 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
144.60.124.0/22	AS25993	AT&T Enterprises, LLC	AT&T Services, Inc.	1024
64.123.22.0/24	AS25993	AT&T Enterprises, LLC	SBC Laboratories	256
108.79.160.0/20	AS25993	AT&T Enterprises, LLC	AT&T Enterprises, LLC	4096
144.60.209.0/24	AS25993	AT&T Enterprises, LLC	AT&T Services, Inc.	256
209.64.7.0/24	AS25993	AT&T Enterprises, LLC	ATTSI, INFORMATION TECHNOLOGY OP	256
144.60.190.0/24	AS25993	AT&T Enterprises, LLC	AT&T Services, Inc.	256
144.60.128.0/21	AS25993	AT&T Enterprises, LLC	AT&T Services, Inc.	2048
144.60.32.0/19	AS25993	AT&T Enterprises, LLC	AT&T Services, Inc.	8192
144.60.64.0/19	AS25993	AT&T Enterprises, LLC	AT&T Services, Inc.	8192
144.60.192.0/19	AS25993	AT&T Enterprises, LLC	AT&T Services, Inc.	8192

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:       25993
ASName:         ATT-LABS-AUSTIN-TX
ASHandle:       AS25993
RegDate:        2002-06-12
Updated:        2025-03-18
Ref:            https://rdap.arin.net/registry/autnum/25993



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


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@semail.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

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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "25993",
    "as_handle" : "AS25993",
    "as_name" : "ATT-LABS-AUSTIN-TX",
    "tech_contacts" : [ "ROUTI59-ARIN", "ZS44-ARIN", "ICC-ARIN" ],
    "abuse_contacts" : [ "ABUSE7-ARIN" ],
    "date_created" : "2002-06-12",
    "date_updated" : "2025-03-18",
    "source" : "https://rdap.arin.net/registry/autnum/25993"
  } ],
  "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" : "2025-10-29",
    "source" : "https://rdap.arin.net/registry/entity/AEL-360",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "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@semail.att.com" ],
    "phone" : [ "+1-888-510-5545" ],
    "source" : "https://rdap.arin.net/registry/entity/ZS44-ARIN"
  }, {
    "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"
  } ],
  "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
AS5671	AT&T Enterprises, LLC	US

Upstreams

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

Downstreams

AS Number	Description	Country
AS5671	AT&T Enterprises, LLC	US

Contacts

Email Contacts

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

Abuse Contacts

abuse@att.net