asn.dev

Autonomous system

AS40421 PC-NETBLOCK

Unclassified ARIN

IPv4 addresses 256 1 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

Providence College

United States of America · AI-generated

education business us

The AS handle PC-NETBLOCK is held by Providence College.

What it's used for

  • The address space carries institutional infrastructure, evidenced by reverse DNS entries such as ssbtest15.providence.edu and adfs.providence.edu.
  • The network announces 256 IPv4 addresses across 1 prefix with 1 observed neighbour, indicating a small, self-contained campus network rather than a transit or large-scale access provider.
  • Traffic from this AS consists of university staff, students, and administrative systems operating within the college's internal network.

Notable

  • The RDAP registrant Providence College matches the AS holder and the netname PC-IPV4-NETBLOCK.
  • The address inventory consists of a single /24 block, which is typical for a small educational institution managing its own IP space.

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
AS14325OSHEAN, Inc.60

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 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS40421
Registry name
PC-NETBLOCK
Registrant
Providence College
Abuse contact
schattle@providence.edu
Registered
2014-09-29
Last changed
2014-09-29
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS40421
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS40421

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