Autonomous system
AS13783 RADFORD-UNIV-AS
Unclassified ARIN
Summary
Radford University
education research infrastructure
The third university in this range holding a full /16 and announcing it as a single route.
What it's used for
- A university's network. 65,536 addresses in the single IPv4 prefix
137.45.0.0/16, two observed BGP neighbours, and no IPv6 announced.
Notable
- The block is netname
RU-NET, initials and the word for network. - The AS handle spells out the institution and appends the word for an AS.
- One prefix, one registrant, one netname, and nothing else in the inventory.
- Three addresses were queried for reverse DNS and none returned a name.
- Two upstreams carry the whole network.
Interesting
- A /16 held directly by the institution, announced whole, is the shape of an allocation made when universities were the internet's main occupants. Nothing has forced a change since, so nothing has changed.
- Three institutions in this range hold the same amount of space and route it three different ways: one as twelve halving pieces, one behind a single upstream, and this one as a single route with a spare path. The address count is identical and the operational choices are not.
- No IPv6 at all, from an organisation with more addresses than it can plausibly use, is the honest reason large IPv4 holders were slow to adopt it.
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 2026-10-27, 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 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 8 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13783- Registry name
- RADFORD-UNIV-AS
- Registrant
- Radford University
- Abuse contact
- abuse@radford.edu
- Registered
- 1999-08-16
- Last changed
- 2024-10-11
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS13783
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 30 naming AS13783
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: 447 networks and 1,852 prefixes, as published 2026-10-27. 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