asn.dev

Autonomous system

AS38819 HKCSL-AS-AP HKCSL GPRS NETWORK

Residential APNIC

IPv4 addresses 45.06K 33 prefixes
IPv6 prefixes 31 counted as prefixes, not addresses
Countries 1 mostly HK
Exchanges 1 recorded by PCH
Upstreams 5 1 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Hong Kong Internet ExchangeHong Kong, China123.255.90.149

Transit providers

5 upstream, 1 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4760HKT Limited3,648
AS4635Hong Kong Internet Exchange--Route Server 1537
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia69
AS24482SG.GS69
AS8359MTS PJSC62

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 33 prefixes · 45.06K addresses IPv6 31 prefixes

CountryNamePrefixes
HKHong Kong64

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS38819
Registry name
HKCSL-AS-AP
Registrant
CSL Limited
Abuse contact
corepssupport@pccw.com
Registered
2008-09-04
Last changed
2020-07-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 85 valid, 0 with no ROA
ROAs
154 authorising AS38819
ASPA
no ASPA record
IRR
100% registered · 85 of 85 announcements
Route objects
210 naming AS38819

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 440 networks and 1,773 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