asn.dev

Autonomous system

AS12061 24HOURFITNESS

Unclassified ARIN

IPv4 addresses 512 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

24 Hour Fitness

United States · AI-generated

enterprise legacy

A gym chain's network, on carrier IPv4 addresses and its own IPv6 allocation.

What it's used for

  • Corporate and club connectivity. 512 addresses in one IPv4 /23, one IPv6 /36, two observed BGP neighbours.

Notable

  • The /23 is not the company's. 63.64.130.0/23 is netname UUNET63, registered to Verizon Business and UUnet Technologies.
  • The IPv6 announcement, 2620:1fb::/36, is a direct assignment out of ARIN's range for end users.
  • Two neighbours for a chain with hundreds of locations.

Interesting

  • The two address families came from different decades and different arrangements. The IPv4 space is UUNET's, assigned when UUNET still existed as a company and inherited by Verizon through the acquisitions that followed. The IPv6 space is the company's own, obtained directly. A business that could not get portable IPv4 without buying it had no trouble getting portable IPv6.
  • A /36 is 4,096 /48 networks — one for every club several times over. Nothing about the IPv4 side of this network suggests that kind of headroom, which is the point: IPv6 policy was written so that the sizing conversation would never need to happen again.

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 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS23005SWITCH, LTD76
AS22911SINAP-TIX, LLC15

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, 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 1 prefixes · 512 addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS12061
Registry name
24HOURFITNESS
Registrant
24 Hour Fitness USA, Inc.
Abuse contact
ecadmin@24hourfit.com
Registered
1999-03-15
Last changed
2014-04-29
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS12061
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS12061

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 1,779 prefixes, as published 2026-10-22. 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