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AS17939
AS17939 miyazaki cabletelevision network Co.,LTD
MCN-NET01 - miyazaki cabletelevision network Co.,LTD · registered in Japan
IPv4 addresses 71,680 10 prefixes · 0.002% of announced IPv4
Rank in Japan #92 largest network in JP by IPv4 space, of 724 · 0.04% of JP
Rank worldwide #2,387 of 79,396 networks with IPv4
IPv6 1 x /32 (65,536 x /48) 1 prefixes
Country Japan 745 ASNs registered there
IPv4 prefixes
All 10 prefixes, in address order.
103.15.188.0/22 123.176.128.0/17 150.91.208.0/20 192.244.32.0/19 202.122.176.0/20 202.170.96.0/20 203.140.208.0/20 218.216.32.0/19 219.100.216.0/22 219.105.64.0/20
IPv6 prefixes
All 1 prefix.
Similar-sized networks in Japan
ASN Name IPv4 addresses
AS10000 #89 NCM - Nagasaki Cable Media Inc.73,728
AS58647 #90 KAGAWAU-AS - Kagawa University73,728
AS23781 #91 Toyama-AN-AS - Toyama University72,704
AS9615 #93 TEES - TOYOHASHI CABLE NETWORK INC.71,680
AS7502 #94 IP-KYOTO - Advanced Software Technology & Management Research Institute of KYOTO70,144
AS23820 #95 RAKUTEN - Rakuten Group, Inc.69,632
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