AS4158 City University of Hong Kong

CITYUNI-AS-AP - City University of Hong Kong · registered in Hong Kong

IPv4 addresses82,9769 prefixes · 0.003% of announced IPv4

Rank in Hong Kong#39largest network in HK by IPv4 space, of 735 · 0.42% of HK

Rank worldwide#2,111of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryHong Kong779 ASNs registered there

Open AS4158 in ASN lookup Look up an IP in this network (144.214.0.1) All networks in Hong Kong

IPv4 prefixes

All 9 prefixes, in address order.

144.214.0.0/16
175.159.64.0/19
175.159.200.0/21
175.159.208.0/22
202.125.216.0/21
202.125.252.0/22
203.188.80.0/21
203.188.88.0/22
203.188.112.128/27

IPv6 prefixes

All 1 prefix.

2001:ce0:5::/48

Similar-sized networks in Hong Kong

ASNNameIPv4 addresses

AS55933#36 CLOUDIE-AS-AP - Cloudie Limited87,040

AS9729#37 IS-AP - iAdvantage Limited84,992

AS4528#38 HKU-AS-HK - The University of Hong Kong83,712

AS4616#40 HKPOLYU-HK - The Hong Kong Polytechnic University82,944

AS3363#41 HKUST-AS-HK - Hong Kong University of Science and Technology79,616

AS9925#42 HKTDCS-AS-AP - VDC Powerbase Hong Kong Data Centers Limited75,520

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