Autonomous system
AS40510 SFWL
Unclassified ARIN
Summary
Southern Fiber Worx
fiber residential isp local
The AS handle SFWL is held by Southern Fiber Worx.
What it's used for
- The address space carries fiber-to-the-home and fixed wireless internet services, with netnames
SOUTHERNFIBERWORX-BLOCK-1andSOUTHERNFIBERWORX-BLOCK-2identifying the operator's own infrastructure. - The network announces 3584 IPv4 addresses across 7 prefixes and maintains 2 observed neighbours, a ratio consistent with a local access provider rather than a transit carrier.
- Traffic from this AS consists of residential and small business subscriber traffic in Cordele, Georgia, supporting speeds from 200 Mbps to 1 Gbps.
Notable
- Registrants for the two largest prefixes match the announcer, while five smaller prefixes retain
COGENT-Anetnames and Cogent Communications, LLC as registrant, indicating leased or inherited address space. - The inventory is split between two /22 blocks registered to Southern Fiber Worx and five smaller blocks (one /23 and four /24s) registered to Cogent.
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 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 4.61K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 8 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS40510- Registry name
- SFWL
- Registrant
- Southern Fiber Worx
- Abuse contact
- david@southernfiberworx.com
- Registered
- 2017-12-20
- Last changed
- 2017-12-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS40510
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 8 naming AS40510
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 1,773 prefixes, as published 2026-10-13. 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