AS136758 HONGKONG CENTURY-ONE LIMITED

HONGKONG10-AS-AP - HONGKONG CENTURY-ONE LIMITED · registered in Hong Kong

IPv4 addresses1,2804 prefixes · <0.001% of announced IPv4

Rank in Hong Kong#379largest network in HK by IPv4 space, of 735 · <0.01% of HK

Rank worldwide#28,253of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryHong Kong779 ASNs registered there

Open AS136758 in ASN lookup Look up an IP in this network (45.123.193.1) All networks in Hong Kong

IPv4 prefixes

All 4 prefixes, in address order.

45.123.193.0/24
45.123.194.0/24
103.95.64.0/24
103.95.66.0/23

IPv6 prefixes

All 1 prefix.

2001:df1:a100::/48

Similar-sized networks in Hong Kong

ASNNameIPv4 addresses

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AS4623#380 CHEVALIER-AS01 - Chevalier (Internet) Limited autonomous system # 11,280

AS4655#381 UNSPECIFIED - Sing Tao Electronic Daily1,280

AS9263#382 PCCW-IMSBIZ-AP - HKT Limited1,280

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