AS138449 SIANG YU SCIENCE AND TECHNOLOGY LIMITED

SYUNET-AS-AP - SIANG YU SCIENCE AND TECHNOLOGY LIMITED · registered in Hong Kong

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in Hong Kong#488largest network in HK by IPv4 space, of 735 · <0.01% of HK

Rank worldwide#45,102of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryHong Kong779 ASNs registered there

Open AS138449 in ASN lookup Look up an IP in this network (42.0.200.1) All networks in Hong Kong

IPv4 prefixes

All 3 prefixes, in address order.

42.0.200.0/24
122.113.50.0/24
139.183.100.0/24

Similar-sized networks in Hong Kong

ASNNameIPv4 addresses

AS136049#485 FILAPAC-AS-AP - FIL Asia Holdings Pte Limited768

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AS137999#487 QUINTRON-SYSTEMS-LIMITED - QUINTRON-SYSTEMS-LIMITED768

AS138647#489 HKAPA-AS-AP - The Hong Kong Academy for Performing Arts768

AS139293#490 UFO-AS-AP - UFO Network Limited768

AS139734#491 YTXC-AS-AP - XINGCHEN DATA HK CO., LIMITED768

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