Autonomous system profile

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

AS29885

Announcement observedARIN

Univeristy of Chicago Hospitals & Health System · UCHHS-AS

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

Last active10/2/2026, 05:29:28Snapshot expired

View network topology RDAP registration

ASN: AS29885
Registration country: United States
Name: Univeristy of Chicago Hospitals & Health System
Abbreviation: UCHHS-AS
Registration date: 5/29/2003, 18:25:10
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
165.68.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
165.68.0.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
165.68.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/29/2026, 00:00:00	✓	×	Currently valid
64.107.48.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/29/2026, 00:00:00	✓	×	Currently valid

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

Registration and sources

Organization: Univeristy of Chicago Hospitals & Health System
RIR: ARIN
Registration country: United States
Registration date: 5/29/2003, 18:25:10
Abuse contact: martin.gramlick@uchicagomedicine.org

Snapshot trend

10/2/2026, 05:29:284 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