ASN AS11941 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11941?

AS11941 is listed under Pillsbury Madison & Sutro, Inc..

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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AS11941 Pillsbury Madison & Sutro, Inc.

ASN Lookup Tool

Pillsbury Madison & Sutro, Inc. pillsburylaw.com

US 22 Routes

AS Data

AS11941

AS11941 – Pillsbury Madison & Sutro, Inc.

AS Number	11941
AS Name	PWLLP-AS001
Organization	Pillsbury Madison & Sutro, Inc.(pms-8)
Country	US
Website	pillsburylaw.com
Number of IPv4 Routes	22
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2005-05-09

ASN Intelligence API for production workflows

Use ASN data for AS11941 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.227.242.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.228.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.236.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.239.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.226.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.240.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.255.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.232.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.245.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	256
204.227.238.0/24	AS11941	Pillsbury Madison & Sutro, Inc.	Pillsbury Madison & Sutro, Inc.	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:       11941
ASName:         PWLLP-AS001
ASHandle:       AS11941
RegDate:        2005-05-09
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/11941


OrgName:        Pillsbury Madison & Sutro, Inc.
OrgId:          PMS-8
Address:        333 Commerce Street
Address:        Suite 1300
City:           Nashville
StateProv:      TN
PostalCode:     37201
Country:        US
RegDate:        1995-01-24
Updated:        2025-07-02
Ref:            https://rdap.arin.net/registry/entity/PMS-8


OrgAbuseHandle: NO166-ORG-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-615-622-3582 
OrgAbuseEmail:  hostmaster@pillsburylaw.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NO166-ORG-ARIN

OrgRoutingHandle: HIPES-ARIN
OrgRoutingName:   Hipes, Jacob 
OrgRoutingPhone:  +1-615-275-7284 
OrgRoutingEmail:  jacob.hipes@pillsburylaw.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/HIPES-ARIN

OrgTechHandle: HIPES-ARIN
OrgTechName:   Hipes, Jacob 
OrgTechPhone:  +1-615-275-7284 
OrgTechEmail:  jacob.hipes@pillsburylaw.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HIPES-ARIN

OrgRoutingHandle: JBNEM-ARIN
OrgRoutingName:   Network Engineering Manager, James Bailey
OrgRoutingPhone:  +1-415-983-1796 
OrgRoutingEmail:  jim.bailey@pillsburylaw.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/JBNEM-ARIN

OrgDNSHandle: HIPES-ARIN
OrgDNSName:   Hipes, Jacob 
OrgDNSPhone:  +1-615-275-7284 
OrgDNSEmail:  jacob.hipes@pillsburylaw.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/HIPES-ARIN

OrgTechHandle: NO166-ORG-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-615-622-3582 
OrgTechEmail:  hostmaster@pillsburylaw.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NO166-ORG-ARIN

OrgTechHandle: JBNEM-ARIN
OrgTechName:   Network Engineering Manager, James Bailey
OrgTechPhone:  +1-415-983-1796 
OrgTechEmail:  jim.bailey@pillsburylaw.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JBNEM-ARIN

OrgDNSHandle: JBNEM-ARIN
OrgDNSName:   Network Engineering Manager, James Bailey
OrgDNSPhone:  +1-415-983-1796 
OrgDNSEmail:  jim.bailey@pillsburylaw.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/JBNEM-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" : "11941",
    "as_handle" : "AS11941",
    "as_name" : "PWLLP-AS001",
    "admin_contacts" : [ "HIPES-ARIN", "JBNEM-ARIN" ],
    "tech_contacts" : [ "HIPES-ARIN", "HIPES-ARIN", "JBNEM-ARIN", "NO166-ORG-ARIN", "JBNEM-ARIN" ],
    "abuse_contacts" : [ "NO166-ORG-ARIN" ],
    "date_created" : "2005-05-09",
    "date_updated" : "2012-02-24",
    "source" : "https://rdap.arin.net/registry/autnum/11941"
  } ],
  "organization" : {
    "handle" : "PMS-8",
    "name" : "Pillsbury Madison & Sutro, Inc.",
    "address" : [ "333 Commerce Street", "Suite 1300", "Nashville", "TN", "37201", "US" ],
    "street" : "Commerce Street",
    "city" : "Nashville",
    "state" : "TN",
    "zip_code" : "37201",
    "country" : [ "US" ],
    "date_created" : "1995-01-24",
    "date_updated" : "2025-07-02",
    "source" : "https://rdap.arin.net/registry/entity/PMS-8",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "HIPES-ARIN",
    "name" : "Hipes, Jacob",
    "email" : [ "jacob.hipes@pillsburylaw.com" ],
    "phone" : [ "+1-615-275-7284" ],
    "source" : "https://rdap.arin.net/registry/entity/HIPES-ARIN"
  }, {
    "handle" : "JBNEM-ARIN",
    "name" : "Network Engineering Manager, James Bailey",
    "email" : [ "jim.bailey@pillsburylaw.com" ],
    "phone" : [ "+1-415-983-1796" ],
    "source" : "https://rdap.arin.net/registry/entity/JBNEM-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "HIPES-ARIN",
    "name" : "Hipes, Jacob",
    "email" : [ "jacob.hipes@pillsburylaw.com" ],
    "phone" : [ "+1-615-275-7284" ],
    "source" : "https://rdap.arin.net/registry/entity/HIPES-ARIN"
  }, {
    "handle" : "JBNEM-ARIN",
    "name" : "Network Engineering Manager, James Bailey",
    "email" : [ "jim.bailey@pillsburylaw.com" ],
    "phone" : [ "+1-415-983-1796" ],
    "source" : "https://rdap.arin.net/registry/entity/JBNEM-ARIN"
  }, {
    "handle" : "NO166-ORG-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@pillsburylaw.com" ],
    "phone" : [ "+1-615-622-3582" ],
    "source" : "https://rdap.arin.net/registry/entity/NO166-ORG-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NO166-ORG-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@pillsburylaw.com" ],
    "phone" : [ "+1-615-622-3582" ],
    "source" : "https://rdap.arin.net/registry/entity/NO166-ORG-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS22909	Comcast Cable Communications, LLC	US
AS7018	AT&T Enterprises, LLC	US
AS1239	Cogent Communications, LLC	US
AS49915	Megaport (UK) Limited	GB
AS701	Verizon Business/UUnet	US
AS174	Cogent Communications, LLC	US
AS25956	Logix	US
AS7385	Allstream Business US, LLC	US
AS22773	Cox Communications Inc.	US
AS49915	Megaport UK Limited	GB

Upstreams

AS Number	Description	Country
AS33667	Comcast Cable Communications, LLC	US
AS22909	Comcast Cable Communications, LLC	US
AS49915	Megaport UK Limited	GB
AS7018	AT&T Enterprises, LLC	US
AS5580	GTT Communications Netherlands B.V.	NL
AS3257	GTT Communications Inc.	US
AS6461	Zayo Bandwidth	US
AS174	Cogent Communications, LLC	US
AS701	Verizon Business	US
AS25956	Logix	US