Autonomous system profile

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

AS1909

Announcement observedARIN

San Diego Supercomputer Center · CAIDA

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

Last active10/21/2026, 11:25:01Snapshot expired

View network topology RDAP registration

ASN: AS1909
Registration country: United States
Name: San Diego Supercomputer Center
Abbreviation: CAIDA
Registration date: 6/2/1992, 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
192.172.226.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	✓	×	Historical record

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

Registration and sources

Organization: San Diego Supercomputer Center
RIR: ARIN
Registration country: United States
Registration date: 6/2/1992, 04:00:00
Abuse contact: abuse@sdsc.edu

Snapshot trend

10/21/2026, 11:25:011 v42 v61 Upstream · 0 Uncertain

9/29/2026, 08:34:231 v42 v61 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: iana-rdap-asn-bootstrap · rir-rdap-asn