Autonomous system profile

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

AS22283

Announcement observedARIN

Sidley Austin LLP · SIDLEY

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

Last active10/29/2026, 10:59:37Snapshot expired

View network topology RDAP registration

ASN: AS22283
Registration country: United States
Name: Sidley Austin LLP
Abbreviation: SIDLEY
Registration date: 8/28/2001, 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
198.232.32.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.33.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Historical record
198.232.35.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.36.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.37.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.42.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.44.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.45.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.46.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.48.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
198.232.49.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.50.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.51.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.52.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.53.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.54.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 08:00:00	✓	×	Currently valid
198.232.55.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Historical record
198.232.56.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.57.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.58.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.60.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.61.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.62.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
198.232.63.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/29/2026, 00:00:00	✓	×	Currently valid

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

Registration and sources

Organization: Sidley Austin LLP
RIR: ARIN
Registration country: United States
Registration date: 8/28/2001, 04:00:00
Abuse contact: abuse@sidley.com

Snapshot trend

10/29/2026, 10:59:3724 v40 v613 Upstream · 0 Uncertain

10/1/2026, 01:41:0624 v40 v612 Upstream · 0 Uncertain

10/1/2026, 01:36:400 v40 v60 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