Autonomous system profile

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

AS5744

Announcement observedARIN

United States Patent and Trademark Office · USPTO

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

Last active9/29/2026, 13:55:56Snapshot expired

View network topology RDAP registration

ASN: AS5744
Registration country: United States
Name: United States Patent and Trademark Office
Abbreviation: USPTO
Registration date: 9/20/1995, 04:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
151.207.232.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	9/29/2026, 08:00:00	✓	×	Historical record
151.207.240.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	9/29/2026, 08:00:00	✓	×	Historical record
151.207.252.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	9/29/2026, 08:00:00	✓	×	Historical record

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

Registration and sources

Organization: United States Patent and Trademark Office
RIR: ARIN
Registration country: United States
Registration date: 9/20/1995, 04:00:00
Abuse contact: abuse@uspto.gov

Snapshot trend

9/29/2026, 13:55:563 v47 v61 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: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn