ASN Lookup Tool

ATT Broadband broadband.att.com US US 0 Routes

AS Data

AS23143

AS23143 – ATT Broadband

AS Number 23143
AS Name ADMC-ONLINE
Organization ATT Broadband(attbro-5)
Country US
Website broadband.att.com
Number of IPv4 Routes 0
Number of IPv6 Routes 0
ASN type ISP
Registry ARIN
Date Allocated 2002-01-30

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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:       23143
ASName:         ADMC-ONLINE
ASHandle:       AS23143
RegDate:        2002-01-30
Updated:        2002-01-30    
Ref:            https://rdap.arin.net/registry/autnum/23143


OrgName:        ATT Broadband
OrgId:          ATTBRO-5
Address:        4100 E.Drycreek Blvd.
City:           Littleton
StateProv:      CO
PostalCode:     80122
Country:        US
RegDate:        2002-01-30
Updated:        2012-10-10
Ref:            https://rdap.arin.net/registry/entity/ATTBRO-5


OrgTechHandle: JS3408-ARIN
OrgTechName:   Sandoval, Joe 
OrgTechPhone:  +1-303-712-3410 
OrgTechEmail:  sandoval.joe.p@broadband.att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JS3408-ARIN

OrgAbuseHandle: JS3408-ARIN
OrgAbuseName:   Sandoval, Joe 
OrgAbusePhone:  +1-303-712-3410 
OrgAbuseEmail:  sandoval.joe.p@broadband.att.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/JS3408-ARIN

RTechHandle: JS3408-ARIN
RTechName:   Sandoval, Joe 
RTechPhone:  +1-303-712-3410 
RTechEmail:  sandoval.joe.p@broadband.att.com
RTechRef:    https://rdap.arin.net/registry/entity/JS3408-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

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Frequently Asked Questions

ASN AS23143 is an Autonomous System Number used to identify a network for BGP internet routing.
AS23143 is listed under ATT Broadband.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.