asn.dev

Autonomous system

AS15171 TOMBIGBEE-FIBER

Unclassified ARIN

IPv4 addresses 37.89K 31 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Tombigbee Fiber

United States · AI-generated

isp telecom infrastructure

Thirty-one prefixes, one netname, and it is an acronym for something else.

What it's used for

  • A rural fibre provider's network. Thirty-one IPv4 prefixes announced from the United States, no IPv6, and three observed BGP neighbours.

Notable

  • Nearly every block carries the netname TEPA-4, a four-letter acronym followed by the protocol version, which shares no letters in sequence with the holder's name.
  • One block breaks the pattern with a netname that spells the company out and adds a counter, so the two conventions sit side by side in the same record.
  • Eighteen addresses were queried for reverse DNS and none returned a name.
  • The routing history begins in 2004, well before the fibre business the holder is named for.
  • Thirty-one separate announcements cover thirty-seven thousand addresses, an average of about twelve hundred each.

Interesting

  • An acronym that cannot be derived from the current company name almost always preserves the organisation that first received the addresses. The registry keeps the old identity because renaming a netname means reissuing it, and nobody does that for a label nobody reads.
  • Thirty-one announcements for a network this size means the space arrived in many small pieces over many years rather than as one allocation, which is the normal shape for a provider that grew by serving one community at a time.
  • No reverse names at all across a whole subscriber network is a choice, and it means an address here carries no clue about which town or device it belongs to.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS394542MS Fiber, LLC2,242
AS174Cogent Communications, LLC1,524
AS7029Windstream Communications LLC1,041

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 31 prefixes · 37.89K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America31

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS15171
Registry name
TOMBIGBEE-FIBER
Registrant
Tombigbee Fiber LLC
Abuse contact
cthompson@tombigbeeelectric.com
Registered
2020-02-11
Last changed
2020-02-11
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 82 valid, 0 with no ROA
ROAs
5 authorising AS15171
ASPA
no ASPA record
IRR
100% registered · 82 of 82 announcements
Route objects
10 naming AS15171

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 1,783 prefixes, as published 2026-10-17. 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

Cross-check