Autonomous system
AS46476 TTUHSC
Unclassified ARIN
Summary
Texas Tech University Health Sciences Center
education business university healthcare
The AS handle TTUHSC is operated by Texas Tech University Health Sciences Center.
What it's used for
- The address space carries internal university and healthcare network traffic, identified by netnames such as
TTUHSC-V4-BLK1,TTUHSC-V4-BLK2, andTTUHSC-V4-BLK3. - The AS announces 65,536 IPv4 addresses across 8 prefixes and 1 IPv6 prefix, while maintaining only 3 observed routing neighbours.
- This high address-to-neighbour ratio indicates an internal corporate estate for a public medical school and university system, rather than a transit or access provider.
Notable
- All registrants for the announced prefixes are listed as Texas Tech University Health Sciences Center, with specific contact points for IT Networking and IT Security.
- The address inventory is subdivided into three distinct blocks, with the 208.122.128.0/18 range further fragmented into five smaller prefixes.
- The organization operates as a public university focused on health sciences, with campuses in Lubbock, El Paso, Abilene, and Amarillo, Texas.
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 2026-10-14, 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 · 65.54K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 9 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS46476- Registry name
- TTUHSC
- Registrant
- Texas Tech University Health Sciences Center
- Abuse contact
- it.networking@ttuhsc.edu
- Registered
- 2008-09-29
- Last changed
- 2013-02-19
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS46476
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 10 naming AS46476
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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 1,772 prefixes, as published 2026-10-15. 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