Autonomous system profile

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

AS18791

Announcement observedARIN

TCU - Texas Christian University · TCU

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

Last active9/30/2026, 23:26:06Snapshot expired

View network topology RDAP registration

ASN: AS18791
Registration country: United States
Name: TCU - Texas Christian University
Abbreviation: TCU
Registration date: 10/11/2000, 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
138.237.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/17/2026, 08:00:00	✓	×	Historical record
74.200.134.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/17/2026, 08:00:00	✓	×	Historical record

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

Registration and sources

Organization: TCU - Texas Christian University
RIR: ARIN
Registration country: United States
Registration date: 10/11/2000, 04:00:00
Abuse contact: e.wersal@tcu.edu

Snapshot trend

9/30/2026, 23:26:062 v40 v64 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 · rir-rdap-asn · iana-rdap-asn-bootstrap