Autonomous system
AS25822 TU-ASN-01
Unclassified ARIN
Summary
Tiffin University
education university ohio
The AS handle TU-ASN-01 is held by Tiffin University.
What it's used for
- The address space is registered to OARnet, a regional internet registry, with netnames such as
NETBLK-OARNETandNETBLK-OARNET-CBLK2. - The AS announces 1024 IPv4 addresses across 4 prefixes and has 1 observed neighbour, a ratio typical of a small, self-contained institutional network.
Notable
- The RDAP registrants for all four prefixes are listed as OARnet, which differs from the AS holder Tiffin University, indicating the space was allocated via the regional registry.
- The inventory consists of four /24 blocks: 198.30.131.0/24, 198.30.132.0/24, 199.18.81.0/24, and 199.218.249.0/24.
- Tiffin University is a private university located in Tiffin, Ohio.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS600 | OARnet | 260 |
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 4 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS25822- Registry name
- TU-ASN-01
- Registrant
- Tiffin University
- Abuse contact
- daytongl@tiffin.edu
- Registered
- 2023-10-17
- Last changed
- 2023-10-17
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS25822
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 6 naming AS25822
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 1,783 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