2,686 blocks registered in Japan.

🇯🇵 Iwasaki Information Systems Co., Ltd. 00:03:26:00:00:00 /24 MA-L 🇯🇵 IWATSU ELECTRIC CO., LTD. 00:50:51:00:00:00 /24 MA-L 🇯🇵 iWave Japan, Inc. 98:6D:35:A0:00:00 /28 MA-M 🇯🇵 J B M CORPORATION 00:A0:17:00:00:00 /24 MA-L 🇯🇵 J. MORITA MFG. CORP. 00:90:AF:00:00:00 /24 MA-L 🇯🇵 JAI Manufacturing 00:0C:DF:00:00:00 /24 MA-L 🇯🇵 JAI Manufacturing D4:1F:0C:00:00:00 /24 MA-L 🇯🇵 JAL Information Technology 00:07:12:00:00:00 /24 MA-L 🇯🇵 JANOME Corporation 10:09:0C:00:00:00 /24 MA-L 🇯🇵 JAPAN AVIATION ELECTRONICS INDUSTRY, LTD. 00:E0:5E:00:00:00 /24 MA-L 🇯🇵 JAPAN BUSINESS COMPUTER CO.LTD 00:C0:04:00:00:00 /24 MA-L 🇯🇵 Japan Cash Machine Co., Ltd. 00:05:55:00:00:00 /24 MA-L 🇯🇵 Japan CBM Corporation 00:0D:AC:00:00:00 /24 MA-L 🇯🇵 JAPAN CIRCUIT CO.,LTD 1C:43:EC:00:00:00 /24 MA-L 🇯🇵 JAPAN COMPUTER CORP. 00:80:0A:00:00:00 /24 MA-L 🇯🇵 Japan Computer Vision Corp. AC:33:0B:00:00:00 /24 MA-L 🇯🇵 Japan Control Engineering Co., Ltd. 00:04:FD:00:00:00 /24 MA-L 🇯🇵 JAPAN DIGITAL LABORAT'Y CO.LTD 00:20:DE:00:00:00 /24 MA-L 🇯🇵 Japan Direx Corporation 00:12:26:00:00:00 /24 MA-L 🇯🇵 Japan E.M.Solutions Co., Ltd. DC:CD:74:00:00:00 /24 MA-L 🇯🇵 Japan Electronics System, Inc 00:50:C2:B0:D0:00 /36 IAB 🇯🇵 JAPAN ID Co., Ltd. 8C:1F:64:16:80:00 /36 MA-S 🇯🇵 Japan Image & Network Inc. 00:0D:DF:00:00:00 /24 MA-L 🇯🇵 Japan Kyastem Co., Ltd 00:1F:0E:00:00:00 /24 MA-L 🇯🇵 JAPAN MINICOMPUTER SYSTEMS CO., Ltd. 00:20:D7:00:00:00 /24 MA-L 🇯🇵 Japan Network Service Co., Ltd. 00:0D:B1:00:00:00 /24 MA-L 🇯🇵 Japan Radio Co., Ltd 18:4F:5D:00:00:00 /24 MA-L 🇯🇵 JAPAN RADIO CO., LTD. 70:88:4D:00:00:00 /24 MA-L 🇯🇵 JAPAN RADIO COMPANY 00:00:27:00:00:00 /24 MA-L 🇯🇵 Japan System Design 08:68:D0:00:00:00 /24 MA-L 🇯🇵 JASCO CORPORATION 00:C0:28:00:00:00 /24 MA-L 🇯🇵 Javasparrow Inc. 70:B3:D5:99:10:00 /36 MA-S 🇯🇵 JEL Corporation 6C:47:80:D0:00:00 /28 MA-M 🇯🇵 JEL SYSTEM CO., LTD. 40:D8:55:08:80:00 /36 IAB 🇯🇵 JEOL SYSTEM TECHNOLOGY CO. LTD 00:20:10:00:00:00 /24 MA-L 🇯🇵 JEPICO Corporation 00:0A:D2:00:00:00 /24 MA-L 🇯🇵 JETTER CO., Ltd. 64:4F:42:00:00:00 /24 MA-L 🇯🇵 Jigowatts Inc. 8C:93:51:00:00:00 /24 MA-L 🇯🇵 Jizaie inc. 78:8E:45:00:00:00 /24 MA-L 🇯🇵 JK DEVICE CORPORATION 70:B3:D5:4D:C0:00 /36 MA-S 🇯🇵 JL Corporation 00:11:3E:00:00:00 /24 MA-L 🇯🇵 JMACS Japan Co., Ltd. 60:9B:2D:00:00:00 /24 MA-L 🇯🇵 JOYSYSTEM 00:50:C2:A8:50:00 /36 IAB 🇯🇵 JRC TOKKI Co.,Ltd. 00:12:33:00:00:00 /24 MA-L 🇯🇵 JTEKT ELECTRONICS CORPORATION 00:D0:7C:00:00:00 /24 MA-L 🇯🇵 JUKI CORPORATION 00:20:3F:00:00:00 /24 MA-L 🇯🇵 JUSTSYSTEM CORPORATION 00:80:9B:00:00:00 /24 MA-L 🇯🇵 JVC KENWOOD Corporation E0:DA:DC:00:00:00 /24 MA-L 🇯🇵 K Technology Corporation 00:14:D4:00:00:00 /24 MA-L 🇯🇵 K Technology Corporation 8C:1C:DA:70:00:00 /28 MA-M 🇯🇵 K's Co.,Ltd. 80:74:59:00:00:00 /24 MA-L 🇯🇵 K-Tech Devices Corp. 00:0D:6D:00:00:00 /24 MA-L 🇯🇵 K-ubique ID Corp. 00:13:9A:00:00:00 /24 MA-L 🇯🇵 K.C.C. SHOKAI LIMITED 00:50:C2:CD:D0:00 /36 IAB 🇯🇵 K.K. Rocky 00:50:C2:85:00:00 /36 IAB 🇯🇵 Kaga Electronics Co., Ltd. 00:24:8A:00:00:00 /24 MA-L 🇯🇵 KAGA ELECTRONICS CO.,LTD. C4:FF:BC:B0:00:00 /28 MA-M 🇯🇵 KAGA FEI Co., Ltd. FC:33:57:00:00:00 /24 MA-L 🇯🇵 Kamacho Scale Co., Ltd. 00:50:C2:EE:80:00 /36 IAB 🇯🇵 Kamacho Scale Co., Ltd. 70:B3:D5:38:50:00 /36 MA-S 🇯🇵 Kanda Kogyo 40:11:75:20:00:00 /28 MA-M 🇯🇵 KANDA TSUSHIN KOGYO CO., LTD. 00:01:14:00:00:00 /24 MA-L 🇯🇵 Kanematsu Electronics, Ltd. 00:09:B1:00:00:00 /24 MA-L 🇯🇵 Kanno Works, Ltd. 00:04:0C:00:00:00 /24 MA-L 🇯🇵 Kanto Aircraft Instrument Co., Ltd. 74:E1:4A:90:00:00 /28 MA-M 🇯🇵 Katoudenkikougyousyo co ltd E0:D1:0A:00:00:00 /24 MA-L 🇯🇵 KATSUJIMA CO., LTD. 00:D0:B4:00:00:00 /24 MA-L 🇯🇵 kawamura electric inc. 00:11:03:00:00:00 /24 MA-L 🇯🇵 KAWASAKI HEAVY INDUSTRIES, LTD 00:90:0F:00:00:00 /24 MA-L 🇯🇵 Kawasaki Microelectronics Incorporated 00:06:13:00:00:00 /24 MA-L 🇯🇵 Kawasaki Robot Service,Ltd. 70:B3:D5:FE:E0:00 /36 MA-S 🇯🇵 Kawasaki Thermal Engineering Co.,Ltd. 20:B3:7F:E0:00:00 /28 MA-M 🇯🇵 KAYABA INDUSTRY Co,.Ltd. 00:11:4A:00:00:00 /24 MA-L 🇯🇵 KAZUtechnica Co.,Ltd. 30:0A:60:00:00:00 /28 MA-M 🇯🇵 KbDevice,Inc. 80:1D:0D:00:00:00 /28 MA-M 🇯🇵 KbDevice,Inc. 40:D8:55:1B:C0:00 /36 IAB 🇯🇵 KDD Media Will Corporation 00:04:BA:00:00:00 /24 MA-L 🇯🇵 KDD-KOKUSAI DEBNSIN DENWA CO. 08:00:1C:00:00:00 /24 MA-L 🇯🇵 KDDI Network & Solultions Inc. 00:05:46:00:00:00 /24 MA-L 🇯🇵 Kei Communication Technology Inc. 00:16:AA:00:00:00 /24 MA-L 🇯🇵 KEI SYSTEM Co., Ltd. 6C:47:80:00:00:00 /28 MA-M 🇯🇵 Keisoku Giken Co.,Ltd. 00:0B:39:00:00:00 /24 MA-L 🇯🇵 Keisokugiken Corporation 00:A0:E2:00:00:00 /24 MA-L 🇯🇵 KEISOKUKI CENTER CO.,LTD. C4:92:4C:00:00:00 /24 MA-L 🇯🇵 Keiyo System Research, Inc. 00:11:FE:00:00:00 /24 MA-L 🇯🇵 KELC Electronics System Co., LTD. 8C:1F:64:B6:B0:00 /36 MA-S 🇯🇵 Kenwood Corporation 00:0D:4F:00:00:00 /24 MA-L 🇯🇵 Key Stream Co., Ltd. 00:0B:E3:00:00:00 /24 MA-L 🇯🇵 Keycom Corp. 70:B3:D5:C3:70:00 /36 MA-S 🇯🇵 Keyence Corporation 00:01:FC:00:00:00 /24 MA-L 🇯🇵 Keyence Corporation 74:95:A7:00:00:00 /24 MA-L 🇯🇵 Keyware Solutions Inc. 40:D8:55:09:C0:00 /36 IAB 🇯🇵 Kihoku Electronic Co. 00:0B:B8:00:00:00 /24 MA-L 🇯🇵 Kikusui Electronics Corp. 00:0F:CE:00:00:00 /24 MA-L 🇯🇵 Kimmon Manufacturing Co., Ltd. 00:50:C2:0F:C0:00 /36 IAB 🇯🇵 Kimoto Electric Co., Ltd. 00:06:15:00:00:00 /24 MA-L 🇯🇵 kimura giken corporation 88:A9:A7:70:00:00 /28 MA-M 🇯🇵 King Tsushin Kogyo Co., LTD. 00:0D:8F:00:00:00 /24 MA-L 🇯🇵 KINGJIM 00:18:69:00:00:00 /24 MA-L 🇯🇵 KINKEI SYSTEM CORPORATION 00:40:C4:00:00:00 /24 MA-L