Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS11941

Announcement observedARIN

Pillsbury Madison & Sutro, Inc. · PWLLP-AS001

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/23/2026, 08:51:37Snapshot expired

View network topology RDAP registration

ASN: AS11941
Registration country: United States
Name: Pillsbury Madison & Sutro, Inc.
Abbreviation: PWLLP-AS001
Registration date: 5/9/2005, 20:23:50
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
204.227.225.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.226.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.227.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.228.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.230.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.231.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.232.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.233.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.236.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.237.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.238.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.239.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.240.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.241.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.242.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.243.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.245.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/9/2026, 08:00:00	✓	×	Historical record
204.227.246.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.247.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.251.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.254.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
204.227.255.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/20/2026, 00:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Pillsbury Madison & Sutro, Inc.
RIR: ARIN
Registration country: United States
Registration date: 5/9/2005, 20:23:50
Abuse contact: jacob.hipes@pillsburylaw.com

Snapshot trend

10/23/2026, 08:51:3722 v40 v611 Upstream · 0 Uncertain

10/20/2026, 03:47:4522 v40 v611 Upstream · 0 Uncertain

10/13/2026, 13:40:2422 v40 v69 Upstream · 0 Uncertain

9/30/2026, 05:47:4622 v40 v611 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: iana-rdap-asn-bootstrap · rir-rdap-asn