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AS11773 The University Of Texas M.D. Anderson Cancer Center

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

The University Of Texas M.D. Anderson Cancer Center mdanderson.org

US 4 Routes

AS Data

AS11773

AS11773 – The University Of Texas M.D. Anderson Cancer Center

AS Number	11773
AS Name	UTMDACC
Organization	The University Of Texas M.D. Anderson Cancer Center (utmacc)
Country	US
Website	mdanderson.org
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1998-12-15

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Use ASN data for AS11773 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.108.242.0/24	AS11773	The University Of Texas M.D. Anderson Cancer Center	The University Of Texas M.D. Anderson Cancer Center	256
143.111.5.0/24	AS11773	The University Of Texas M.D. Anderson Cancer Center	The University Of Texas M.D. Anderson Cancer Center	256
143.111.86.0/24	AS11773	The University Of Texas M.D. Anderson Cancer Center	The University Of Texas M.D. Anderson Cancer Center	256
143.111.0.0/16	AS11773	The University Of Texas M.D. Anderson Cancer Center	The University Of Texas M.D. Anderson Cancer Center	65536

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:       11773
ASName:         UTMDACC
ASHandle:       AS11773
RegDate:        1998-12-15
Updated:        2012-03-20
Ref:            https://rdap.arin.net/registry/autnum/11773


OrgName:        The University Of Texas M.D. Anderson Cancer Center
OrgId:          UTMACC
Address:        1155 Pressler Street
City:           Houston
StateProv:      TX
PostalCode:     77030
Country:        US
RegDate:        1990-03-26
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/UTMACC


OrgAbuseHandle: NETWO2005-ARIN
OrgAbuseName:   Network Services
OrgAbusePhone:  +1-713-792-1400 
OrgAbuseEmail:  ipsupport@mdanderson.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO2005-ARIN

OrgTechHandle: NETWO2005-ARIN
OrgTechName:   Network Services
OrgTechPhone:  +1-713-792-1400 
OrgTechEmail:  ipsupport@mdanderson.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO2005-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" : "11773",
    "as_handle" : "AS11773",
    "as_name" : "UTMDACC",
    "tech_contacts" : [ "NETWO2005-ARIN" ],
    "abuse_contacts" : [ "NETWO2005-ARIN" ],
    "date_created" : "1998-12-15",
    "date_updated" : "2012-03-20",
    "source" : "https://rdap.arin.net/registry/autnum/11773"
  } ],
  "organization" : {
    "handle" : "UTMACC",
    "name" : "The University Of Texas M.D. Anderson Cancer Center",
    "address" : [ "1155 Pressler Street", "Houston", "TX", "77030", "US" ],
    "street" : "Pressler Street",
    "city" : "Houston",
    "state" : "TX",
    "zip_code" : "77030",
    "country" : [ "US" ],
    "date_created" : "1990-03-26",
    "date_updated" : "2011-09-24",
    "source" : "https://rdap.arin.net/registry/entity/UTMACC",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NETWO2005-ARIN",
    "name" : "Network Services",
    "email" : [ "ipsupport@mdanderson.org" ],
    "phone" : [ "+1-713-792-1400" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO2005-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NETWO2005-ARIN",
    "name" : "Network Services",
    "email" : [ "ipsupport@mdanderson.org" ],
    "phone" : [ "+1-713-792-1400" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO2005-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US
AS22645	LEARN	US
AS16905	LEARN	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US
AS22645	LEARN	US
AS16905	LEARN	US

Frequently Asked Questions

What is ASN AS11773?

ASN AS11773 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11773?

AS11773 is listed under The University Of Texas M.D. Anderson Cancer Center.

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.