AS18042 Koos Broadband Telecom

KBT - Koos Broadband Telecom · registered in Taiwan

IPv4 addresses123,1365 prefixes · 0.004% of announced IPv4

Rank in Taiwan#23largest network in TW by IPv4 space, of 237 · 0.37% of TW

Rank worldwide#1,680of 79,396 networks with IPv4

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

CountryTaiwan288 ASNs registered there

Open AS18042 in ASN lookup Look up an IP in this network (58.86.0.1) All networks in Taiwan

IPv4 prefixes

All 5 prefixes, in address order.

58.86.0.0/16
61.63.0.0/18
61.63.64.0/19
61.67.128.0/17
103.123.188.0/24

IPv6 prefixes

All 1 prefix.

2400:df40::/32

Similar-sized networks in Taiwan

ASNNameIPv4 addresses

AS18046#20 DONGFONG-TW - DongFong Technology Co. Ltd.155,904

AS131627#21 Peicity-AS-TW - Peicity Digital Cable Television., LTD134,912

AS131591#22 AMBIT-AS-TW - Ambit Microsystem Corporation127,488

AS18419#24 DADA-AS-TW - DaDa Broadband LTD.116,736

AS24154#25 APBT-AS-TW - Asia Pacific Broadband Fixed Lines Co., Ltd.98,816

AS9916#26 NCTU-TW - National Yang Ming Chiao Tung University93,696

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