Autonomous system
AS6181 FUSE-NET
Residential ARIN
Summary
Cincinnati Bell Telephone Company LLC
isp legacy
FUSE-NET is the internet-access autonomous system of Cincinnati Bell Telephone Company LLC, the incumbent telephone carrier for the Cincinnati region, now trading as altafiber. Fuse Internet Access is the ISP brand carried on this AS.
What it's used for
- Consumer and business broadband across greater Cincinnati and northern Kentucky, including the carrier's fibre-to-the-home footprint.
- Roughly 800k IPv4 addresses, one of the larger regional eyeball pools in the ARIN region and consistent with a legacy telco serving a metropolitan area.
Notable
- This is an eyeball network: the addresses here sit behind residential subscribers, so traffic is heavily inbound and diurnal. It is not a hosting or transit AS.
- ARIN's registration for the ASN dates to 1995, matching the period when incumbent telcos were standing up dial-up and early broadband arms.
Interesting
- Cincinnati Bell is one of the few US incumbent local exchange carriers that stayed independent through the Bell-system consolidations, which is why a single metro has its own telco AS at all.
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 4 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.236.90 |
| Equinix Internet Exchange Chicago | Chicago, United States | 208.115.136.15 |
| Digital Realty Atlanta Internet Exchange | Atlanta, United States | 206.126.110.102 |
| Ohio IX | Columbus, United States | 206.53.204.35 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 149 prefixes · 819K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 151 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6181- Registry name
- FUSE-NET
- Registrant
- Cincinnati Bell Telephone Company LLC
- Abuse contact
- Tim.Beck@Cinbell.com
- Registered
- 1995-12-21
- Last changed
- 2018-11-08
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 44% valid · 52 valid, 66 with no ROA
- ROAs
- 19 authorising AS6181
- ASPA
- no ASPA record
- IRR
- 92% registered · 109 of 118 announcements 9 other origin
- Route objects
- 182 naming AS6181
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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