ASN AS11975 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11975?

AS11975 is listed under The College of William and Mary.

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?

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AS11975 The College of William and Mary

ASN Lookup Tool

The College of William and Mary wm.edu

US 9 Routes

AS Data

AS11975

AS11975 – The College of William and Mary

AS Number	11975
AS Name	WM
Organization	The College of William and Mary (cwm-11)
Country	US
Website	wm.edu
Number of IPv4 Routes	9
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1999-02-18

ASN Intelligence API for production workflows

Use ASN data for AS11975 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
128.239.33.0/24	AS11975	The College of William and Mary	The College of William and Mary	256
139.70.128.0/17	AS11975	The College of William and Mary	Virginia Institute of Marine Science	32768
139.70.0.0/16	AS11975	The College of William and Mary	Virginia Institute of Marine Science	65536
139.70.0.0/17	AS11975	The College of William and Mary	Virginia Institute of Marine Science	32768
128.239.0.0/17	AS11975	The College of William and Mary	The College of William and Mary	32768
139.70.224.0/19	AS11975	The College of William and Mary	Virginia Institute of Marine Science	8192
128.239.128.0/17	AS11975	The College of William and Mary	The College of William and Mary	32768
128.239.0.0/16	AS11975	The College of William and Mary	The College of William and Mary	65536
128.239.1.0/24	AS11975	The College of William and Mary	The College of William and Mary	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:       11975
ASName:         WM
ASHandle:       AS11975
RegDate:        1999-02-18
Updated:        2022-01-05
Ref:            https://rdap.arin.net/registry/autnum/11975


OrgName:        The College of William and Mary
OrgId:          CWM-11
Address:        150 Blow Memorial Hall
City:           Williamsburg
StateProv:      VA
PostalCode:     23187
Country:        US
RegDate:        1999-02-18
Updated:        2022-01-05
Ref:            https://rdap.arin.net/registry/entity/CWM-11


OrgAbuseHandle: ABUSE5074-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-757-221-3000 
OrgAbuseEmail:  abuse@wm.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5074-ARIN

OrgRoutingHandle: WMIT-ARIN
OrgRoutingName:   WMIT
OrgRoutingPhone:  +1-757-221-3000 
OrgRoutingEmail:  dns@lists.wm.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN

OrgTechHandle: WMIT-ARIN
OrgTechName:   WMIT
OrgTechPhone:  +1-757-221-3000 
OrgTechEmail:  dns@lists.wm.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN

OrgDNSHandle: WMIT-ARIN
OrgDNSName:   WMIT
OrgDNSPhone:  +1-757-221-3000 
OrgDNSEmail:  dns@lists.wm.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN

OrgNOCHandle: WMIT-ARIN
OrgNOCName:   WMIT
OrgNOCPhone:  +1-757-221-3000 
OrgNOCEmail:  dns@lists.wm.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN

RTechHandle: WMIT-ARIN
RTechName:   WMIT
RTechPhone:  +1-757-221-3000 
RTechEmail:  dns@lists.wm.edu
RTechRef:    https://rdap.arin.net/registry/entity/WMIT-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" : "11975",
    "as_handle" : "AS11975",
    "as_name" : "WM",
    "admin_contacts" : [ "WMIT-ARIN" ],
    "tech_contacts" : [ "WMIT-ARIN", "WMIT-ARIN", "WMIT-ARIN" ],
    "abuse_contacts" : [ "ABUSE5074-ARIN" ],
    "date_created" : "1999-02-18",
    "date_updated" : "2022-01-05",
    "source" : "https://rdap.arin.net/registry/autnum/11975"
  } ],
  "organization" : {
    "handle" : "CWM-11",
    "name" : "The College of William and Mary",
    "address" : [ "150 Blow Memorial Hall", "Williamsburg", "VA", "23187", "US" ],
    "city" : "Williamsburg",
    "state" : "VA",
    "zip_code" : "23187",
    "country" : [ "US" ],
    "date_created" : "1999-02-18",
    "date_updated" : "2022-01-05",
    "source" : "https://rdap.arin.net/registry/entity/CWM-11",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "WMIT-ARIN",
    "name" : "WMIT",
    "email" : [ "dns@lists.wm.edu" ],
    "phone" : [ "+1-757-221-3000" ],
    "source" : "https://rdap.arin.net/registry/entity/WMIT-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "WMIT-ARIN",
    "name" : "WMIT",
    "email" : [ "dns@lists.wm.edu" ],
    "phone" : [ "+1-757-221-3000" ],
    "source" : "https://rdap.arin.net/registry/entity/WMIT-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ABUSE5074-ARIN",
    "name" : "Abuse",
    "email" : [ "abuse@wm.edu" ],
    "phone" : [ "+1-757-221-3000" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE5074-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS40220	Virginia Polytechnic Institute and State Univ.	US
AS1239	Cogent Communications, LLC	US
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS40220	Virginia Polytechnic Institute and State Univ.	US
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US

Contacts

Email Contacts

dns@lists.wm.edu

Abuse Contacts

abuse@wm.edu