Autonomous system
AS11481 AS-UTRGV
Education ARIN
Summary
University of Texas Rio Grande Valley
education university legacy
AS-UTRGV is the campus network of the University of Texas Rio Grande Valley, the UT System institution serving the lower Rio Grande Valley of south Texas from campuses in Edinburg, Brownsville and Harlingen. RIS currently sees 15 IPv4 prefixes (about 73,700 addresses), one IPv6 /48, and just 3 observed BGP neighbours.
What it's used for
Ordinary university campus connectivity: student and staff access, residence halls, administrative systems, and the public-facing web and mail estate. The address inventory is dominated by the legacy 129.113.0.0/16, announced both whole and as its two halves, alongside a block of space out of 67.207.0.0/19. Every prefix in the pack's registrant list resolves to the University of Texas Rio Grande Valley itself, so this is genuinely self-held space rather than a carrier assignment or leased inventory. Three neighbours against ~73k addresses is the classic end-site shape: a large user population homed to a small number of upstreams, with no sign of transit or wholesale activity.
Notable
The reverse DNS still carries the university's former identity. Sampled addresses in 129.113.0.0/16 answer under utpa.edu, the domain of the University of Texas–Pan American, one of the two institutions merged in 2015 to create UTRGV. The routing moved to the new university; parts of the DNS never got the memo.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 72.70K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 9 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11481- Registry name
- AS-UTRGV
- Registrant
- University of Texas Rio Grande Valley
- Abuse contact
- abuse@the.net
- Registered
- 2015-05-11
- Last changed
- 2015-05-11
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 16 with no ROA
- ROAs
- 0 authorising AS11481
- ASPA
- no ASPA record
- IRR
- 100% registered · 16 of 16 announcements
- Route objects
- 20 naming AS11481
Reputation
Classification and threat
Education University, school or national research and education network.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,778 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere