asn.dev

Autonomous system

AS24455 SiamCement-AS-TH - The Siam Cement Group

Unclassified ARIN

IPv4 addresses 2.05K 5 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly TH
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

The Siam Cement Group

Thailand · AI-generated

business corporate thailand

The AS handle ITONECSLOX-AS-TH is held by The Siam Cement Group.

What it's used for

  • The address space carries corporate infrastructure for The Siam Cement Group and its subsidiaries, evidenced by netnames SCG, ITone-th, CSLOXINFO-TH, and JASTEL-NETWORK-TH.
  • The network announces 2048 IPv4 addresses across 5 prefixes with only 2 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access provider.

Notable

  • Registrants include CS Loxinfo Public Company Limited and JasTel Network Company Limited, which aligns with the Siam Cement Group's ownership of these entities.
  • The inventory consists of five distinct IPv4 prefixes, including /23 and /24 blocks, with no IPv6 prefixes announced.

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, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS198949Radware Ltd236
AS4750CS LOXINFO PUBLIC COMPANY LIMITED134
AS55423JasTel Network126

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 5 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
THThailand5

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS24455
Registry name
SiamCement-AS-TH
Registrant
ITONE (The Siam Cement Group)
Abuse contact
csl-ip-admin@ais.co.th
Registered
2008-09-04
Last changed
2025-11-24
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 8 valid, 0 with no ROA
ROAs
8 authorising AS24455
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
20 naming AS24455

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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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