2,686 blocks registered in Japan.

🇯🇵 NIPPON TELEGRAPH & TELEPHONE 00:00:D9:00:00:00 /24 MA-L 🇯🇵 NIPPON UNISOFT CORPORATION 00:60:5F:00:00:00 /24 MA-L 🇯🇵 Nipron Co.,Ltd 0C:86:29:A0:00:00 /28 MA-M 🇯🇵 NIRECO CORPORATION 70:B3:D5:0C:B0:00 /36 MA-S 🇯🇵 Nisca corporation 00:0F:13:00:00:00 /24 MA-L 🇯🇵 NISHI NIPPON ELECTRIC WIRE & CABLE CO.,LTD. 00:09:87:00:00:00 /24 MA-L 🇯🇵 NISHIMU ELECTRONICS INDUSTRIES CO., LTD. 00:90:01:00:00:00 /24 MA-L 🇯🇵 Nishiyama Industry Co.,LTD. 70:AF:25:00:00:00 /24 MA-L 🇯🇵 NISSEI ELECTRIC CO., LTD. 00:30:47:00:00:00 /24 MA-L 🇯🇵 NISSHIN ELECTRIC CO., LTD. 00:A0:4A:00:00:00 /24 MA-L 🇯🇵 Nisshin Electronics co.,ltd. 00:50:C2:B7:00:00 /36 IAB 🇯🇵 Nissho-denki Co.,LTD. 00:26:6E:00:00:00 /24 MA-L 🇯🇵 NISSIN ELECTRIC CO., LTD. 00:80:49:00:00:00 /24 MA-L 🇯🇵 NISSIN INC. 00:0D:38:00:00:00 /24 MA-L 🇯🇵 Nittan Company, Limited 00:16:15:00:00:00 /24 MA-L 🇯🇵 Nitto Seiko 1C:C0:E1:C0:00:00 /28 MA-M 🇯🇵 NITTO TSUSHINKI CO., LTD 00:10:D2:00:00:00 /24 MA-L 🇯🇵 NJK TECHNO CO. 00:60:9A:00:00:00 /24 MA-L 🇯🇵 NKE Corporation 00:0C:9F:00:00:00 /24 MA-L 🇯🇵 NKS Co.Ltd. 00:50:C2:A4:30:00 /36 IAB 🇯🇵 NMR Corporation 9C:5B:96:00:00:00 /24 MA-L 🇯🇵 NOHMI BOSAI LTD. 00:24:26:00:00:00 /24 MA-L 🇯🇵 Noritake Itron Corporation 40:D8:55:1A:30:00 /36 IAB 🇯🇵 Noritsu Precision Co., Ltd. 8C:19:2D:00:00:00 /28 MA-M 🇯🇵 Noritz Corporation 00:0A:4D:00:00:00 /24 MA-L 🇯🇵 Notebook Development Lab. Lenovo Japan Ltd. 00:06:1B:00:00:00 /24 MA-L 🇯🇵 NOVA electronics, Inc. 94:C6:EB:00:00:00 /24 MA-L 🇯🇵 Novatec Corporation 00:08:AF:00:00:00 /24 MA-L 🇯🇵 NRS Co., Ltd. 10:63:A3:70:00:00 /28 MA-M 🇯🇵 NSD Corporation E8:8E:60:00:00:00 /24 MA-L 🇯🇵 NSK Co.,Ltd. 8C:1F:64:2A:30:00 /36 MA-S 🇯🇵 NST co.,LTD. 00:0F:C4:00:00:00 /24 MA-L 🇯🇵 NT MICROSYSTEMS 00:1B:C5:0B:A0:00 /36 MA-S 🇯🇵 NT MicroSystems, Inc. 00:17:1C:00:00:00 /24 MA-L 🇯🇵 NTI co., ltd. 7C:6B:F7:00:00:00 /24 MA-L 🇯🇵 NTN Technical Service Corporation 64:E2:04:00:00:00 /24 MA-L 🇯🇵 NTT Advanced Technology Corporation 00:15:8F:00:00:00 /24 MA-L 🇯🇵 NTT DATA COMM. SYSTEMS CORP. 00:40:13:00:00:00 /24 MA-L 🇯🇵 NTT DOCOMO BUSINESS, Inc. 34:EF:8B:00:00:00 /24 MA-L 🇯🇵 NTT IT CO., LTD. 00:A0:44:00:00:00 /24 MA-L 🇯🇵 NTT sonority, Inc. A4:4F:3E:D0:00:00 /28 MA-M 🇯🇵 NTTPC Communications, Inc. 00:13:5D:00:00:00 /24 MA-L 🇯🇵 Numata Corporation 00:18:E9:00:00:00 /24 MA-L 🇯🇵 NUMATA R&D Co.,Ltd 70:B3:D5:E9:B0:00 /36 MA-S 🇯🇵 O.N. ELECTRONIC CO., LTD. 00:A0:DC:00:00:00 /24 MA-L 🇯🇵 OA LABORATORY CO., LTD. 00:20:A0:00:00:00 /24 MA-L 🇯🇵 OAK INFORMATION SYSTEM CO. DC:36:43:80:00:00 /28 MA-M 🇯🇵 Ocean Solution Technology DC:F1:44:00:00:00 /24 MA-L 🇯🇵 ODAWARAKIKI AUTO-MACHINE MFG.CO.,LTD 70:B3:D5:F8:80:00 /36 MA-S 🇯🇵 Office FA.com Co.,Ltd. D8:33:7F:00:00:00 /24 MA-L 🇯🇵 OHASHI ENGINEERING CO.,LTD. 70:B3:D5:55:60:00 /36 MA-S 🇯🇵 OHKURA ELECTRIC CO., LTD. 00:C0:2A:00:00:00 /24 MA-L 🇯🇵 OHMORI ELECTRIC INDUSTRIES CO.LTD 70:B3:D5:6A:90:00 /36 MA-S 🇯🇵 OI ELECTRIC CO.,LTD 00:10:C1:00:00:00 /24 MA-L 🇯🇵 OI ELECTRIC CO.,LTD 50:9F:3B:00:00:00 /24 MA-L 🇯🇵 OI ELECTRIC CO.,LTD 88:35:C1:00:00:00 /24 MA-L 🇯🇵 OI ELECTRIC CO.,LTD D8:4A:87:00:00:00 /24 MA-L 🇯🇵 OI ELECTRIC CO.,LTD D8:F1:D8:00:00:00 /24 MA-L 🇯🇵 OKANO ELECTRIC CO.,LTD 00:09:AE:00:00:00 /24 MA-L 🇯🇵 OKI DENKI BOHSAI CO.,LTD. 00:50:C2:C1:20:00 /36 IAB 🇯🇵 OKI ELECTRIC INDUSTRY CO., LTD 00:80:87:00:00:00 /24 MA-L 🇯🇵 Oki Electric Industry Co., Ltd. 00:11:57:00:00:00 /24 MA-L 🇯🇵 Oki Electric Industry Co., Ltd. 00:25:36:00:00:00 /24 MA-L 🇯🇵 Oki Electric Industry Co., Ltd. 2C:FF:65:00:00:00 /24 MA-L 🇯🇵 Oki Seatec Co., Ltd. 40:D8:55:06:80:00 /36 IAB 🇯🇵 OKUMA CORPORATION 00:C0:2F:00:00:00 /24 MA-L 🇯🇵 OLYMPUS CORPORATION 00:01:13:00:00:00 /24 MA-L 🇯🇵 Omnibit Inc. 00:B5:D6:00:00:00 /24 MA-L 🇯🇵 OMNIVISION 18:89:DF:00:00:00 /24 MA-L 🇯🇵 OMRON Corporation 3C:F7:D1:00:00:00 /24 MA-L 🇯🇵 OMRON Corporation 80:B5:C6:00:00:00 /24 MA-L 🇯🇵 Omron Healthcare Co., Ltd 00:22:09:00:00:00 /24 MA-L 🇯🇵 OMRON HEALTHCARE Co., Ltd. B0:49:5F:00:00:00 /24 MA-L 🇯🇵 OMRON SENTECH CO., LTD. D4:7C:44:30:00:00 /28 MA-M 🇯🇵 OMRON TATEISI ELECTRONICS CO. 00:00:0A:00:00:00 /24 MA-L 🇯🇵 ONDEMAND LABORATORY Co., Ltd. 70:B3:D5:06:90:00 /36 MA-S 🇯🇵 One-Nemoto Engineering Corporation 00:50:C2:DB:F0:00 /36 IAB 🇯🇵 Onkyo Technology K.K. 00:09:B0:00:00:00 /24 MA-L 🇯🇵 Onkyo Technology K.K. 6C:72:4A:00:00:00 /24 MA-L 🇯🇵 Onosokki Co.,Ltd 70:B3:D5:8C:60:00 /36 MA-S 🇯🇵 Open Network Co., Ltd. 00:02:91:00:00:00 /24 MA-L 🇯🇵 Optcom Co., Ltd. C8:6C:B6:00:00:00 /24 MA-L 🇯🇵 OPTEX CO.,LTD. 00:1F:D1:00:00:00 /24 MA-L 🇯🇵 OPTEX-FA CO.,LTD. FC:F1:CD:00:00:00 /24 MA-L 🇯🇵 OPTiM Corporation D4:7C:44:B0:00:00 /28 MA-M 🇯🇵 OPTOELECTRONICS Co., Ltd. 00:12:6A:00:00:00 /24 MA-L 🇯🇵 OPTOWL Co.,Ltd 54:A1:04:00:00:00 /24 MA-L 🇯🇵 OREX SAI Inc. A4:59:D3:A0:00:00 /28 MA-M 🇯🇵 Oriental Electronics, Inc. 8C:1F:64:68:E0:00 /36 MA-S 🇯🇵 ORIENTAL MOTOR CO., LTD. B8:18:6F:00:00:00 /24 MA-L 🇯🇵 Origin Co., Ltd. 00:0A:D7:00:00:00 /24 MA-L 🇯🇵 Orion Corporation 70:B3:D5:97:A0:00 /36 MA-S 🇯🇵 Orion Electric Co., Ltd. 00:0C:3B:00:00:00 /24 MA-L 🇯🇵 Ory Laboratory Co., Ltd. 78:C2:C0:40:00:00 /28 MA-M 🇯🇵 OSAKA COMPUTER CORP. 00:20:6A:00:00:00 /24 MA-L 🇯🇵 Osaka Micro Computer. 00:0E:D1:00:00:00 /24 MA-L 🇯🇵 OSAKI DATATECH CO., LTD. 70:B3:D5:A0:F0:00 /36 MA-S 🇯🇵 Osaki Electric Co., Ltd. 00:04:01:00:00:00 /24 MA-L 🇯🇵 OSASI Technos Inc. C0:AA:68:00:00:00 /24 MA-L 🇯🇵 Oshimi System Design Inc. 00:50:C2:21:40:00 /36 IAB