asn.dev

Autonomous system

AS13796 UCONN-ARIN

Unclassified ARIN

IPv4 addresses 90.11K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

University of Connecticut

United States · AI-generated

education research infrastructure

Ninety thousand addresses from three eras of allocation, all under one netname and one upstream.

What it's used for

  • A university's network. 90,112 addresses across three IPv4 prefixes, one observed BGP neighbour, and no IPv6 announced.

Notable

  • The prefixes are 137.99.0.0/16, 50.28.128.0/18 and 67.221.64.0/19, from three different parts of the address space.
  • All three are netname UCONN-NET, registered directly to the university.
  • One neighbour carries the whole network.
  • First seen in the routing archive on 2003-08-19, timestamped in the afternoon.
  • Nine addresses were queried for reverse DNS and none returned a name.

Interesting

  • A /16 marks an institution present when addresses were handed out freely. A /18 and a /19 from ranges issued much later mark one that kept coming back and was still granted large blocks. Holding all three directly, rather than borrowing from a carrier, is rare at any size.
  • One netname across three separate allocations is a registry kept tidy on purpose. Most organisations in this range accumulate a different label per request; this one relabelled everything to match.
  • Ninety thousand addresses behind a single upstream is the same trade the other large universities here have made. The AS number exists to hold the space, not to survive a link failing.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS22742Connecticut Education Network310

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

Shape and geography

IPv4 3 prefixes · 90.11K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS13796
Registry name
UCONN-ARIN
Registrant
University of Connecticut
Abuse contact
abuse@uconn.edu
Registered
1999-08-19
Last changed
2017-07-11
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 5 with no ROA
ROAs
0 authorising AS13796
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
7 naming AS13796

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

Cross-check