Autonomous system
AS20126 UC-DOM
Unclassified ARIN
Summary
University of Cincinnati
education university research vpn
The AS handle UC-DOM is held by University of Cincinnati.
What it's used for
- The address space carries university infrastructure, with reverse DNS entries pointing to
vpn.uc.eduhosts. - The inventory consists of 9 IPv4 prefixes totaling 65536 addresses, with 0 IPv6 prefixes announced.
- With only 2 observed neighbours, the low neighbour count relative to the address block size indicates an access or internal network role rather than transit.
Notable
- All registrants for the announced prefixes are listed as University of Cincinnati or University of Cincinnati NOC, matching the AS holder.
- The address inventory is finely subdivided into nine prefixes within the 129.137.0.0/16 range, consistent with internal site-by-site segmentation for a large institution.
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 9 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 9 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS20126- Registry name
- UC-DOM
- Registrant
- University of Cincinnati
- Abuse contact
- abuse@uc.edu
- Registered
- 2001-03-27
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS20126
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 3 naming AS20126
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 1,778 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