asn.dev

Autonomous system

AS23112 -Reserved AS-

Unclassified ARIN

IPv4 addresses 768 2 prefixes
IPv6 prefixes 25 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 1 downstream
Flagged prefixes 0 none

Summary

Fluidstack

United States of America · AI-generated

ai infrastructure datacenter compute

AS23112 is operated by Fluidstack Inc.

What it's used for

  • The space carries infrastructure for AI compute, evidenced by the netname FLUIDSTACK-IP4TO6 on the sole IPv4 prefix 23.148.140.0/24.
  • The AS announces 256 IPv4 addresses and 13 IPv6 prefixes against only 2 observed neighbours, indicating a dedicated infrastructure network rather than a transit or access provider.

Notable

  • The registrant Fluidstack Inc matches the AS holder FLUIDSTACK-NET, confirming consistent ownership.
  • Fluidstack is a data center infrastructure company building large-scale AI compute facilities, with recent significant funding rounds supporting its expansion.
  • The address inventory consists of a single /24 IPv4 block and a large, contiguous IPv6 allocation under 2604:26e0::/33, typical of a modern cloud or AI infrastructure provider.

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, 1 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC304
AS46887Crown Castle Fiber LLC80
AS49915Megaport (UK) Limited58

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 2 prefixes · 768 addresses IPv6 25 prefixes

CountryNamePrefixes
USUnited States of America27

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS23112
Registry name
FLUIDSTACK-NET
Registrant
Fluidstack Inc
Abuse contact
gavin@fluidstack.io
Registered
2025-10-28
Last changed
2025-10-28
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
Fluidstack
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Website
https://www.fluidstack.io/

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
45% valid · 5 valid, 6 with no ROA
ROAs
3 authorising AS23112
ASPA
no ASPA record
IRR
100% registered · 11 of 11 announcements
Route objects
9 naming AS23112

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