asn.dev

Autonomous system

AS12148 CLEMSONU

Unclassified ARIN

IPv4 addresses 98.82K 4 prefixes
IPv6 prefixes 5 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 1 downstream
Flagged prefixes 0 none

Summary

Clemson University

United States · AI-generated

education university research legacy

The campus network of Clemson University in South Carolina.

What it's used for

  • Campus networking for teaching, research and student access. A /17 is registered specifically as CLEMSON-WIRELESS-NET, and the sampled reverse DNS under tigernet.wifi.dyn.clemson.edu confirms it carries the campus wireless pool.

Notable

  • Just four IPv4 prefixes for 98,000 addresses, and three of them are legacy-era assignments: a full /16 at 130.127.0.0/16 plus two /24s out of 192.5 and 192.42. Universities were early enough to ARIN's predecessors to receive space on this scale, which is why a mid-sized campus still holds more addresses than most companies.
  • Four observed BGP neighbours. This is an end site that consumes connectivity rather than providing it, most likely reached through the state research network.

Interesting

  • Devoting an entire /17 to wireless says something about how campus networking changed. That block is larger than the whole address holding of many ISPs, and it exists because every student now arrives with several devices that each want an address on the wifi.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 1 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2722CULR, LLC155
AS195San Diego Supercomputer Center73
AS226Los Nettos59

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 4 prefixes · 98.82K addresses IPv6 5 prefixes

CountryNamePrefixes
USUnited States of America9

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS12148
Registry name
CLEMSONU
Registrant
Clemson University
Abuse contact
abuse@clemson.edu
Registered
1999-04-06
Last changed
2016-02-04
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 6 with no ROA
ROAs
0 authorising AS12148
ASPA
no ASPA record
IRR
83% registered · 5 of 6 announcements 1 other origin
Route objects
4 naming AS12148

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 1,784 prefixes, as published 2026-10-19. 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

Cross-check