Autonomous system profile

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

AS33633

Announcement observedARIN

USG Corporation, Inc. · USG-CORPORATION

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

Last active10/2/2026, 16:01:31Snapshot expired

View network topology RDAP registration

ASN: AS33633
Registration country: United States
Name: USG Corporation, Inc.
Abbreviation: USG-CORPORATION
Registration date: 2/9/2005, 21:14:06
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
64.43.232.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Historical record
64.43.232.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Historical record
64.43.234.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Historical record
66.225.192.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Historical record
8.26.176.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Historical record

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

Registration and sources

Organization: USG Corporation, Inc.
RIR: ARIN
Registration country: United States
Registration date: 2/9/2005, 21:14:06
Abuse contact: BJensen@usg.com

Snapshot trend

10/2/2026, 16:01:315 v40 v63 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