Autonomous system
AS10421 TTUNET
Education ARIN
Summary
Texas Tech University
education university campus
TTUNET is the campus network of Texas Tech University in Lubbock, Texas — a public research university and the hub of the Texas Tech University System.
What it's used for
- Campus connectivity for Texas Tech: academic and administrative buildings, research computing, student residence halls, and the university's public web and mail services.
Notable
- Education, and the routing backs the name up. RIS sees just 4 IPv4 prefixes totalling about 82,432 addresses, with only 3 observed BGP neighbours. A handful of neighbours against a large, legacy-sized allocation is the signature of an end-site that buys transit and sells none: universities multihome for resilience (typically a commercial ISP plus a research-and-education network), they do not resell reachability.
- The anchor prefix is
129.118.0.0/16— a Class B from the era when large universities were handed /16s directly. Holding one is itself strong evidence the AS is an original institutional network rather than a later commercial reuse of the handle. - Reverse DNS on the smaller
66.140.111.0/24showsttu1-1.nodes.planet-lab.org— a PlanetLab node. PlanetLab was the global academic testbed for distributed systems research, and hosting a node is something only a participating research institution does.
Interesting
- Not all of the space is contiguous legacy address;
69.65.192.0/18and66.140.111.0/24come from later provider-adjacent ranges, and one sampled PTR in that block still resolves underswbell.net. That is a fingerprint of address space that arrived with a commercial circuit and stayed.
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 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 12 prefixes · 82.43K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10421- Registry name
- TTUNET
- Registrant
- Texas Tech University
- Abuse contact
- noc@ttu.edu
- Registered
- 1997-07-31
- Last changed
- 2016-04-18
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS10421
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 5 naming AS10421
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 1,783 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