asn.dev

Autonomous system

AS36038 SISULINK

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Sisulink

United States of America · AI-generated

business enterprise broadband

The AS handle SISULINK is held by Sisulink.

What it's used for

  • The address space carries a single public block identified by the netname SISULINK-PUBLIC and registrant sisulink.
  • The network announces 256 IPv4 addresses across 1 prefix with 1 observed neighbour, indicating a small-scale enterprise or access network rather than a transit provider.

Notable

  • The RDAP registrant sisulink matches the AS handle and registry name, confirming consistent ownership.
  • The address inventory consists of a single /24 prefix (142.249.21.0/24), representing a compact and self-contained allocation.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS394177SHIFT HOSTING LLC61

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 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS36038
Registry name
SISULINK
Registrant
sisulink
Abuse contact
abuse@sisulink.com
Registered
2023-02-14
Last changed
2026-05-09
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
3 authorising AS36038
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
8 naming AS36038

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