Autonomous system profile

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

AS394534

Announcement observedARIN

City of Chicago · CITYOFCHICAGO-ASN-01

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

Last active10/5/2026, 20:04:33Snapshot expired

View network topology RDAP registration

ASN: AS394534
Registration country: United States
Name: City of Chicago
Abbreviation: CITYOFCHICAGO-ASN-01
Registration date: 6/20/2018, 18:12:50
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
167.165.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.0.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.222.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.230.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.231.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.232.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.234.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.238.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
167.165.239.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid
216.125.144.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 16:00:00	10/20/2026, 00:00:00	✓	×	Currently valid

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

Registration and sources

Organization: City of Chicago
RIR: ARIN
Registration country: United States
Registration date: 6/20/2018, 18:12:50
Abuse contact: kevin.kirby@chicago.gov

Snapshot trend

10/5/2026, 20:04:3311 v40 v62 Upstream · 0 Uncertain

10/5/2026, 10:28:050 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