Autonomous system
AS4985 PGWORKS
Unclassified ARIN
Summary
Philadelphia Gas Works
enterprise legacy
PGWORKS is the network of Philadelphia Gas Works (PGW), the natural gas utility serving the city of Philadelphia and the largest municipally owned gas utility in the United States.
What it's used for
Utility enterprise networking. Two /24s carry PGW's business and operational systems: customer billing and service, field operations support, and the utility's public-facing web presence for its roughly half-million customer accounts.
Notable
PGW is owned by the City of Philadelphia and operated under contract, which puts it in an unusual category: a municipal asset run like a corporation. Its network is registered and behaves like an enterprise one, not like a city government network.
Interesting
Critical-infrastructure operators like gas and water utilities tend to keep a deliberately small and boring internet footprint. Two /24s and no fuss is exactly the profile you would want from the people who deliver gas to a million and a half residents.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4985- Registry name
- PGWORKS
- Registrant
- PHILADELPHIA GAS WORKS
- Abuse contact
- kim.choing@pgworks.com
- Registered
- 2009-09-30
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS4985
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 2 announcements
- Route objects
- 0 naming AS4985
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 1,779 prefixes, as published 2026-10-21. 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