Autonomous system profile

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

AS1224

Announcement observedARIN

University of Illinois · NCSA-AS

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

Last active9/29/2026, 07:45:16Snapshot expired

View network topology RDAP registration

ASN: AS1224
Registration country: United States
Name: University of Illinois
Abbreviation: NCSA-AS
Registration date: 2/25/1991, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
141.142.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/31/2026, 16:00:00	✓	×	Currently valid
198.17.196.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/31/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: University of Illinois
RIR: ARIN
Registration country: United States
Registration date: 2/25/1991, 05:00:00
Abuse contact: neteng@ncsa.illinois.edu

Snapshot trend

9/29/2026, 07:45:162 v41 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