AS18791 — TCU - Texas Christian University

AS18791 announces 2 IPv4 prefixes covering 65,792 addresses and 0 IPv6 prefixes.

About this network

The AS handle TCU is operated by Texas Christian University.

What it's used for

• The address space carries university infrastructure, evidenced by the netnames TCU and TCU-STADIUM registered to Texas Christian University.
• The network announces 65,792 IPv4 addresses across 2 prefixes and maintains 4 observed neighbours, a ratio consistent with an internal corporate or institutional estate rather than a transit provider.

Notable

• The registrants for both announced prefixes, 138.237.0.0/16 and 74.200.134.0/24, align perfectly with the announcer, Texas Christian University.
• The inventory consists of one large /16 block and one small /24 block, with the latter specifically designated for stadium operations.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 74.200.134.0/24
• 138.237.0.0/16

Upstream networks

• AS22645 LEARN
• AS13359 LEARN
• AS16905 LEARN

Adjacent networks

• AS22645 LEARN
• AS13359 LEARN
• AS16905 LEARN

Routing security

• RPKI: 1 valid, 0 invalid and 1 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-LEARN-DFW-INTRASTATE, AS-LEARN-HOUSTON-INTERNET, AS-LEARN-I2PX, AS-LEARN-INST, AS-NTG-COMMODITY-MEMBER-DENY, AS16905:AS-CONE, AS22645:AS-CONE.