AS23875 CSL Limited

CSL-AS-AP - CSL Limited · registered in Hong Kong

IPv4 addresses1,7927 prefixes · <0.001% of announced IPv4

Rank in Hong Kong#335largest network in HK by IPv4 space, of 735 · <0.01% of HK

Rank worldwide#25,129of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryHong Kong779 ASNs registered there

Open AS23875 in ASN lookup Look up an IP in this network (63.216.59.1) All networks in Hong Kong

IPv4 prefixes

All 7 prefixes, in address order.

63.216.59.0/24
63.216.61.0/24
63.216.62.0/24
103.17.29.0/24
202.6.94.0/24
202.164.27.0/24
203.29.222.0/24

Other ASNs named CSL Limited

1 other network uses the same organisation name; together with AS23875 they announce 2,816 IPv4 addresses.

ASNNameIPv4 addresses

AS136931CSL-AS-AP - CSL Limited AU1,024

Similar-sized networks in Hong Kong

ASNNameIPv4 addresses

AS152644#332 QINIU-AS-AP - QINIU Limited1,792

AS10116#333 HTCL-WAP-HK-AP - Hutchison Telephone Company Limited1,792

AS10231#334 TECHTRANS-AP - Tech-trans System Ltd.1,792

AS131324#336 M9TCL-AS-AP - 92Cloud Technology Co., Limited1,792

AS134524#337 LCIL-AS-AP - LinkNet Communication International Limited1,792

AS134544#338 CENBONGT-AS-AP - Cenbong Int'l Holdings Limited1,792

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources