asn.dev

Autonomous system

AS43338 RATIONAL-AS

Unclassified RIPE

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly IM
Exchanges 1 recorded by PCH
Upstreams 6 2 downstream
Flagged prefixes 0 none

Summary

TSG Interactive Services Limited

Isle of Man · AI-generated

business isle-of-man corporate

The AS handle RATIONAL-AS is held by TSG Interactive Services Limited.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netname RATIONAL-NETWORK and registrant TSG Interactive Services Limited.
  • The AS announces 2048 IPv4 addresses within a single prefix (77.87.176.0/21) and maintains 9 observed neighbours.
  • This ratio of a single, finely subdivided corporate estate against a moderate number of peers indicates an internal business network rather than a transit or access provider.

Notable

  • The registrant TSG Interactive Services Limited aligns with the AS holder, confirming consistent ownership of the announced space.
  • The address inventory consists of a single /21 block, representing a compact, self-contained corporate 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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
LINX LON1London, United Kingdom195.66.224.48

Transit providers

6 upstream, 2 downstream and 8 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS32787Akamai Technologies, Inc.488
AS2914NTT America, Inc.46
AS174Cogent Communications, LLC34
AS3320Deutsche Telekom AG21
AS3257GTT Communications Inc.20
AS6762TELECOM ITALIA SPARKLE S.p.A.14

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
IMIsle of Man1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS43338
Registry name
RATIONAL-AS
Registrant
TSG Interactive Services Limited
Abuse contact
systems@pokerstars.eu
Registered
2007-07-17
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 11 with no ROA
ROAs
0 authorising AS43338
ASPA
no ASPA record
IRR
100% registered · 11 of 11 announcements
Route objects
15 naming AS43338

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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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