AS131677 OpenFor Telecommunications Co., Ltd.

OPENFOR - OpenFor Telecommunications Co., Ltd. · registered in Taiwan

IPv4 addresses1,5363 prefixes · <0.001% of announced IPv4

Rank in Taiwan#115largest network in TW by IPv4 space, of 237 · <0.01% of TW

Rank worldwide#25,735of 79,396 networks with IPv4

IPv63 x /32 (196,608 x /48)3 prefixes

CountryTaiwan288 ASNs registered there

Open AS131677 in ASN lookup Look up an IP in this network (103.147.130.1) All networks in Taiwan

IPv4 prefixes

All 3 prefixes, in address order.

103.147.130.0/23
103.149.64.0/23
103.152.252.0/23

IPv6 prefixes

All 3 prefixes.

2405:b8c0::/32
2405:e4c0::/32
2406:3a40::/32

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AS18426#114 STPI-AS-TW - National Applied Research Laboratories2,048

AS131626#116 NSS-GROUP-AS-TW - NSS INT'L CO., LTD.1,536

AS131636#117 WANIN - WANIN INTERNATIONAL CO., LTD.1,536

AS152626#118 CLOUDBASE - Cloudbase Network CORP.1,536

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