Autonomous system
AS11240 ATC-BROADBAND
Residential ARIN
Summary
ATC Broadband (AccessATC)
isp legacy
ATC-BROADBAND is ATC Broadband, the local telephone-company-turned-broadband provider headquartered in Alma, Georgia, serving Alma, Baxley and Blackshear in the south of the state. The AccessATC name in the registry and the accessatc.net reverse zone are the same operator.
What it's used for
Consumer and small-business broadband in a rural service area. RIS observes 21 IPv4 prefixes / ~13,824 addresses, five IPv6 prefixes (a 2607:3200::/32 plus several /48s), and only three observed neighbours. Three neighbours is a classic small eyeball ISP: it buys transit, it does not sell it.
Reverse DNS is the clincher, and it is unusually explicit. The subscriber pools answer as cable.atcbroadband.com and dsl.atcbroadband.com — the operator has named its access technology directly in the PTR — while infrastructure carries names like atc-rtr.accessatc.net, alma-stgr1-cm1.accessatc.net (a cable-modem termination device at the Alma head-end) and spam.atcbroadband.com, a mail filter. Access pools plus head-end gear plus a mail platform is exactly the inventory of a small incumbent broadband operator.
Notable
Nearly all the space is registered to ATC-BROADBAND itself. The one exception, 72.162.200.0/23, is registered to GADTAE — the Georgia Department of Technical and Adult Education — which is a customer whose space the ISP announces on its behalf. Announcing a customer's registered prefix is ordinary ISP behaviour and is not the multi-registrant scatter that signals IP leasing.
Interesting
The atc.cc domain also appears in the rDNS (oke-hub-3800.atc.cc), a leftover naming convention from an older generation of the network's aggregation routers.
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 |
|---|---|---|
| Digital Realty Atlanta Internet Exchange | Atlanta, United States | 206.126.110.156 |
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 26 prefixes · 13.82K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 27 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11240- Registry name
- ATC-BROADBAND
- Registrant
- AccessATC
- Abuse contact
- cmusic@atcnetworks.net
- Registered
- 1998-05-27
- Last changed
- 2018-09-06
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 22 with no ROA
- ROAs
- 0 authorising AS11240
- ASPA
- no ASPA record
- IRR
- 100% registered · 22 of 22 announcements
- Route objects
- 8 naming AS11240
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