asn.dev

Autonomous system

AS54481 CHESCO204108252

Unclassified ARIN

IPv4 addresses 768 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

County of Chester

United States of America · AI-generated

government business internal

CHESCO204108252 is operated by the County of Chester.

What it's used for

  • The address space carries internal county infrastructure, evidenced by netnames CHESCO-HABLOCK255 and CCGOVT-DMZ.
  • The AS announces 768 IPv4 addresses across 2 prefixes with 3 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
  • Traffic consists of internal government services, administrative endpoints, and departmental backhaul for the county's operations.

Notable

  • Registrants for both prefixes are consistent with the announcer, identified as County of Chester and County of Chester, Pennsylvania.
  • The inventory is finely subdivided into two distinct blocks, reflecting site-by-site or functional segmentation typical of a municipal IT estate.

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, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS20413Chesconet152
AS174Cogent Communications, LLC44
AS33287Comcast Cable Communications, LLC2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 2 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS54481
Registry name
CHESCO204108252
Registrant
County of Chester
Abuse contact
amorris@chesco.org
Registered
2012-02-28
Last changed
2012-02-28
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
33% valid · 1 valid, 2 with no ROA
ROAs
1 authorising AS54481
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
5 naming AS54481

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 1,848 prefixes, as published 2026-10-31. 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