asn.dev

Autonomous system

AS4750 CSLOXINFO-AS-AP CS LOXINFO PUBLIC COMPANY LIMITED

Unclassified ARIN

IPv4 addresses 227K 433 prefixes
IPv6 prefixes 47 counted as prefixes, not addresses
Countries 1 mostly TH
Exchanges 0 recorded by PCH
Upstreams 3 52 downstream
Flagged prefixes 0 none

Summary

CS LoxInfo Public Company Limited

Thailand · AI-generated

isp legacy

CSLOXINFO-AS-AP is CS LoxInfo, one of Thailand's long-established internet service providers, based at CW Tower in Bangkok.

What it's used for

  • Corporate internet access across Thailand: leased lines, business broadband, and managed connectivity.
  • Data centre and colocation services from CS LoxInfo's Bangkok facilities (including the CW Tower and "The Cloud" sites).

Notable

  • CS LoxInfo is one of the original commercial Thai ISPs and still carries a substantial IPv4 footprint (a few hundred thousand addresses), split between customer access and hosted infrastructure.
  • The network is multi-homed to several regional upstreams rather than depending on a single carrier — normal for a national ISP that has to reach both domestic peers and international transit.

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, 52 downstream and 59 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7568CS LOXINFO Public Company Limited.31,775
AS45265CSLOXINFO Transit AS with Domestic (National Internet Exchange)513
AS45430SBN-IIG/AWN-IIG transit provider373

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 433 prefixes · 227K addresses IPv6 47 prefixes

CountryNamePrefixes
THThailand480

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS4750
Registry name
CSLOXINFO-AS-AP
Registrant
CS Loxinfo Public Company Limited
Abuse contact
csl-ip-admin@ais.co.th
Registered
2008-09-04
Last changed
2020-07-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
99.8% valid · 519 valid, 1 with no ROA
ROAs
532 authorising AS4750
ASPA
no ASPA record
IRR
100% registered · 520 of 520 announcements
Route objects
958 naming AS4750

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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