Autonomous system
AS6536 CITYNET - CityNet
Residential ARIN
Summary
Citynet
isp legacy
CITYNET is the autonomous system of Citynet, an independent fiber and communications provider headquartered in Bridgeport, West Virginia. It serves homes, businesses and public-sector customers across the state.
What it's used for
Citynet operates its own fiber network and sells broadband, voice and managed IT services. AS6536 carries that traffic and originates the company's address space, including 69.43.0.0/18 and 64.135.224.0/19. Reverse DNS across the space resolves under citynet.net, mixing subscriber-style records (69-43-0-001.in-addr.arpa.citynet.net) with named infrastructure hosts.
Notable
This is an eyeball network in the classic sense: most of the addresses terminate on customer connections rather than servers. Citynet is a regional carrier rather than a national one, so the footprint is concentrated in West Virginia, and the AS peers at regional exchanges such as PIT-IX in Pittsburgh.
The ASN was registered with ARIN in May 1996, consistent with the company's mid-1990s origins as a West Virginia internet provider.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Pittsburgh Internet Exchange | Pittsburgh, United States | 206.71.141.19 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-07, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 19 prefixes · 36.61K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 20 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6536- Registry name
- CITYNET
- Registrant
- CityNet
- Abuse contact
- ipadmin@citynet.net
- Registered
- 1996-05-20
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 8 with no ROA
- ROAs
- 0 authorising AS6536
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 39 naming AS6536
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 454 networks and 1,852 prefixes, as published 2026-11-08. 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