Internet Service Providers in Japan

Top 20 organizations with the largest IP allocations in Japan

Japan

Top 20 organizations with the largest IP allocations


Rank Name IPv4 addresses IPv6 /64 networks AS numbers Prefixes
Softbank BB Corp. 69,460,480 1.06 x 244 1 775
NTT Communications Corporation 29,103,104 242 9 291
KDDI CORPORATION 18,505,024 1.25 x 241 1 568
4 Jupiter Telecommunication Co. Ltd 10,332,160 233 1 260
5 Research Organization of Information and Systems, National Institute of Informa 9,185,253 233 1 628
6 ARTERIA Networks Corporation 7,243,776 1.56 x 236 4 258
7 Jupiter Telecommunications Co., Ltd. 4,007,936 234 9 404
8 Internet Initiative Japan Inc. 3,868,672 1.03 x 234 1 200
9 So-net Entertainment Corporation 3,765,248 1.22 x 237 1 109
10 BIGLOBE Inc. 3,674,624 1.13 x 235 1 37
11 OPTAGE Inc. 3,144,448 233 2 86
12 FUJITSU LIMITED 3,072,768 232 1 51
13 NTT DOCOMO, INC. 2,771,712 233 1 1,074
14 Ymobile Corporation 2,746,368 0 1 70
15 NTT PC Communications, Inc. 2,279,424 1.56 x 233 1 170
16 SoftBank Mobile Corp. 2,062,336 232 2 199
17 FreeBit Co.,Ltd. 1,866,240 233 1 304
18 NTT-ME Corporation 1,759,488 242 1 52
19 Amazon.com, Inc. 1,659,648 1.13 x 232 1 264
20 TOKAI Communications Corporation 1,566,976 1.31 x 235 1 170