asn.dev

Autonomous system

AS12171 FASTENTERPRISES

Unclassified ARIN

IPv4 addresses 2.56K 6 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Fast Enterprises

United States · AI-generated

enterprise government legacy

Fast Enterprises writes the tax administration and motor vehicle software that US state agencies run on.

What it's used for

  • Corporate and service delivery networking. 2,560 addresses across six prefixes, two observed BGP neighbours, no IPv6 announced.

Notable

  • All six prefixes carry one netname, FEL16, with no subdivision by site or function.
  • They also come out of one contiguous stretch: a /22, a /23 and four /24s, all between 170.10.96.0 and 170.10.108.0.
  • Two neighbours against 2,560 addresses. The network exists to serve the company, not to carry anyone else's traffic.

Interesting

  • Revenue systems are among the longest-lived software in government. A state replaces its tax administration platform roughly once a generation, in a multi-year project touching every tax the state collects, which is why a private company most people have never heard of ends up as a quiet dependency of state finance across much of the country.
  • An address plan that stayed this simple says something about the business. Six prefixes and a single label means the company never had to hand address space to a division, a subsidiary or an acquisition, and the registry entry is one of the few public records that shows it.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS29863Latisys-Denver, LLC540
AS29944Latisys-Ashburn, LLC59

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 6 prefixes · 2.56K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America6

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS12171
Registry name
FASTENTERPRISES
Registrant
Fast Enterprises, LLC
Abuse contact
arin_abuse@fastenterprises.com
Registered
2010-08-25
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 10 with no ROA
ROAs
0 authorising AS12171
ASPA
no ASPA record
IRR
100% registered · 10 of 10 announcements
Route objects
3 naming AS12171

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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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