asn.dev

Autonomous system

AS20105 URICHMOND

Unclassified ARIN

IPv4 addresses 65.54K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

University of Richmond

United States of America · AI-generated

education business university

The AS handle URICHMOND is held by University of Richmond.

What it's used for

  • The address space carries university infrastructure, evidenced by the netname URICH and registrant University of Richmond across all three announced prefixes.
  • The network announces 65536 IPv4 addresses across 3 prefixes with only 2 observed neighbours, a ratio indicative of an internal corporate or institutional estate rather than a transit or access provider.

Notable

  • All RDAP registrants align with the announcer, consistently listing University of Richmond as the registrant for the 141.166.128.0/17, 141.166.0.0/18, and 141.166.64.0/18 blocks.
  • The inventory consists of three contiguous IPv4 prefixes within the 141.166.0.0/16 range, with no IPv6 prefixes currently announced.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC285
AS7795LUMOS Networks, Inc.131

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, 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 · 65.54K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS20105
Registry name
URICHMOND
Registrant
University of Richmond
Abuse contact
hostmaster@richmond.edu
Registered
2001-03-23
Last changed
2014-11-17
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 7 with no ROA
ROAs
0 authorising AS20105
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
4 naming AS20105

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 2026-10-17. 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