AS135572 ACT International Telecom Limited

ACTINT-AS-AP - ACT International Telecom Limited · registered in Hong Kong

IPv4 addresses2,5603 prefixes · <0.001% of announced IPv4

Rank in Hong Kong#273largest network in HK by IPv4 space, of 735 · 0.01% of HK

Rank worldwide#19,745of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryHong Kong779 ASNs registered there

Open AS135572 in ASN lookup Look up an IP in this network (103.66.100.1) All networks in Hong Kong

IPv4 prefixes

All 3 prefixes, in address order.

103.66.100.0/22
103.149.128.0/23
103.229.68.0/22

IPv6 prefixes

All 1 prefix.

2405:e9c0::/32

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AS141768#275 HKBIL-AS-AP - HONG KONG BRIDGE INFO-TECH LIMITED2,560

AS24182#276 INTERPUBLIC-AS-GISAP-AS - Interpublic GIS2,560

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