Autonomous system
AS9339 DATAPRO-CSLOXINFO-AS CSLOXINFO
Unclassified ARIN
Summary
CS Loxinfo (CSL)
isp enterprise legacy
AS9339 (DATAPRO-CSLOXINFO-AS) is registered to CS Loxinfo, the long-running Bangkok ICT and Internet company now trading as CSL after Advanced Info Service (AIS) took control of it. The compound handle preserves an older Datapro association; the network in routing today is a small vestige rather than CSL's main footprint.
What it's used for
This is not the ASN to look at if you want CS Loxinfo's real network. RIS observes just 2 IPv4 prefixes — 110.170.227.0/24 and 203.146.13.0/24, 512 addresses in total — no IPv6, and 2 BGP neighbours. CSL's substantive address holdings and peering sit under its other, larger ASNs; this one carries a pair of /24s and little else. What those /24s hold is legible from the reverse DNS: both sampled addresses resolve under static.asianet.co.th, the Asianet (Asia Infonet) ISP domain, in the 110-170-227-x.static pattern used for statically assigned customer addresses rather than dynamic consumer pools. Static-IP naming with a two-prefix, two-neighbour inventory reads as business/leased-line customer space or hosted services carried inside the CSL group, not as an eyeball access network and certainly not as transit.
Notable
- CS Loxinfo was founded in the mid-1990s and became one of Thailand's best-known ISPs; it rebranded to CSL after AIS acquired it, and its data-centre and cloud business was folded in with AIS Business.
- The
asianet.co.thPTRs belong to Asia Infonet, another Thai ISP brand of that era, which is what the space actually carries. - The AS number is legacy and the announcement is tiny; treat any geolocation or classification of these two
/24s with care.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
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
IPv4 2 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TH | Thailand | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS9339- Registry name
- DATAPRO-CSLOXINFO-AS
- 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
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS9339
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 16 naming AS9339
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 1,845 prefixes, as published 2026-10-31. 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