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AS2516
AS2516 KDDI CORPORATION
KDDI - KDDI CORPORATION · registered in Japan
IPv4 addresses 18,072,320 533 prefixes · 0.577% of announced IPv4
Rank in Japan #3 largest network in JP by IPv4 space, of 724 · 11.20% of JP
Rank worldwide #21 of 79,396 networks with IPv4
IPv6 643 x /32 (42,139,649 x /48) 23 prefixes
Country Japan 745 ASNs registered there
IPv6 prefixes
All 23 prefixes.
2001:268::/33 2001:268:8000::/34 2001:268:c000::/35 2001:268:e000::/36 2001:268:f000::/37 2001:268:f800::/38 2001:268:fc00::/40 2001:268:fd00::/45 2001:268:fd08::/46 2001:268:fd0c::/47 2001:268:fd0e::/48 2001:268:fd0f::/48 2001:268:fd10::/44 2001:268:fd20::/43 2001:268:fd40::/42 2001:268:fd80::/41 2001:268:fe00::/39 2401:980::/32 2403:8300:813f::/48 2404:9200::/32 240b::/26 240b:240::/26 240f::/23
Similar-sized networks in Japan
ASN Name IPv4 addresses
AS17676 #1 GIGAINFRA - SoftBank Corp.38,445,056
AS4713 #2 OCN - NTT DOCOMO BUSINESS,Inc.28,623,360
AS2907 #4 SINET-AS - Research Organization of Information and Systems, National Institute of Informatics8,765,504
AS17506 #5 UCOM - ARTERIA Networks Corporation5,382,143
AS9824 #6 JTCL-JP-AS - JCOM Co., Ltd.4,745,216
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