58,306 registered blocks.

🇺🇸 CardioNet, Inc 00:0F:3E:00:00:00 /24 MA-L 🇺🇸 Cardiopulmonary Corp 3C:1A:57:00:00:00 /24 MA-L 🇳🇱 CardioTek B.V. 60:2A:54:00:00:00 /24 MA-L 🇺🇸 CARDKEY SYSTEMS, INC. 00:90:DE:00:00:00 /24 MA-L 🇻🇮 CARDWARE LAB, INC. 00:A0:76:00:00:00 /24 MA-L 🇺🇸 Care Bloom, LLC F4:A4:54:E0:00:00 /28 MA-M 🇺🇸 Care Everywhere LLC 00:1B:C5:02:C0:00 /36 MA-S 🇵🇰 CARE PVT LTD 70:B3:D5:FE:40:00 /36 MA-S 🇺🇸 care.ai C4:83:72:B0:00:00 /28 MA-M 🇯🇵 CARECOM CO.,LTD. 00:26:67:00:00:00 /24 MA-L 🇺🇸 Career Technologies USA 84:A9:EA:00:00:00 /24 MA-L 🇺🇸 Carefree of Colorado F8:8A:3C:10:00:00 /28 MA-M 🇺🇸 Carefusion F8:C6:78:00:00:00 /24 MA-L 🇨🇦 CAREHAWK 8C:1F:64:14:80:00 /36 MA-S 🇮🇹 Carel s.p.a. 00:0A:5C:00:00:00 /24 MA-L 🇺🇸 CarePredict, Inc. 34:26:06:00:00:00 /24 MA-L 🇰🇷 CareSix Inc. EC:5B:CD:A0:00:00 /28 MA-M 🇺🇸 Carestream Dental LLC 8C:1F:64:B7:70:00 /36 MA-S 🇺🇸 Carestream Health, Inc. 00:1D:4A:00:00:00 /24 MA-L 🇨🇳 Carestream Healthcare International Company Limited 8C:1F:64:4C:C0:00 /36 MA-S 🇸🇪 Caretech AB 00:15:B3:00:00:00 /24 MA-L 🇺🇸 CareView Communications F0:58:49:00:00:00 /24 MA-L 🇨🇳 Carex Lighting Equipment Factory 00:1B:14:00:00:00 /24 MA-L 🇺🇸 Cargt Holdings LLC 34:5C:40:00:00:00 /24 MA-L 🇫🇷 Cari Electronic 70:B3:D5:AE:90:00 /36 MA-S 🇯🇵 Carina System Co., Ltd. 00:26:9A:00:00:00 /24 MA-L 🇺🇸 Carina Technology 00:16:10:00:00:00 /24 MA-L 🇦🇹 CARINTHIAN TECH INSTITUTE 00:D0:F4:00:00:00 /24 MA-L 🇩🇪 Carl Baasel Lasertechnik GmbH 00:50:C2:0F:60:00 /36 IAB 🇩🇪 Carl Valentin GmbH 00:07:4A:00:00:00 /24 MA-L 🇩🇪 CARL ZEISS 00:20:0D:00:00:00 /24 MA-L 🇩🇪 Carl Zeiss AG F0:95:F1:00:00:00 /24 MA-L 🇮🇹 CARLO GAVAZZI CONTROLS SPA-Controls Division 00:19:EE:00:00:00 /24 MA-L 🇩🇰 Carlo Gavazzi Industri 70:B3:D5:EF:F0:00 /36 MA-S 🇲🇹 CARLO GAVAZZI LTD 68:49:B2:00:00:00 /24 MA-L 🇺🇸 CARLO GAVAZZI, INC. 00:50:A1:00:00:00 /24 MA-L 🇺🇸 Carlson Wireless Technologies Inc. 70:B3:D5:17:40:00 /36 MA-S 🇨🇦 Carma Industries Inc. D4:3D:67:00:00:00 /24 MA-L 🇨🇦 Carmanah Signs 50:C0:06:00:00:00 /24 MA-L 🇺🇸 Carnegie Robotics 2C:69:1D:60:00:00 /28 MA-M 🇺🇸 Carnegie Technologies CC:4D:38:00:00:00 /24 MA-L 🇺🇸 CARNEGIE-MELLON UNIVERSITY 08:00:7F:00:00:00 /24 MA-L 🇰🇷 CARPOINT CO.,LTD 00:1C:DB:00:00:00 /24 MA-L 🇺🇸 CARRERA COMPUTERS, INC. 00:20:F8:00:00:00 /24 MA-L 🇺🇸 CARRIER ACCESS CORPORATION 00:E0:97:00:00:00 /24 MA-L 🇺🇸 Carrier Corporation 00:02:52:00:00:00 /24 MA-L 🇺🇸 Carrier Corporation 34:6D:9C:00:00:00 /24 MA-L 🇫🇷 Carrier Culoz SA 00:24:BF:00:00:00 /24 MA-L 🇳🇱 Carrier Fire & Security 9C:F6:1A:00:00:00 /24 MA-L 🇺🇸 CarrierComm Inc. 00:01:6D:00:00:00 /24 MA-L 🇹🇼 Carry Technology Co.,Ltd A4:0B:ED:00:00:00 /24 MA-L 🇻🇳 CARVE VIET NAM TECHNOLOGY COMPANY LIMITED E8:FF:1E:50:00:00 /28 MA-M 🇲🇽 Carvers SA de CV 00:14:BA:00:00:00 /24 MA-L 🇨🇦 CARY PERIPHERALS INC. 00:60:29:00:00:00 /24 MA-L 🇰🇷 CAS Corp. 00:09:15:00:00:00 /24 MA-L 🇺🇸 CAS Medical Systems, Inc 70:B3:D5:9D:B0:00 /36 MA-S 🇦🇺 Casa Systems D0:DB:B7:00:00:00 /24 MA-L 🇦🇺 Casa Systems F0:2E:51:00:00:00 /24 MA-L 🇺🇸 Casabyte 00:50:C2:0C:10:00 /36 IAB 🇺🇸 Casabyte Inc. 00:50:C2:3C:20:00 /36 IAB 🇺🇸 Casabyte Inc. 00:50:C2:69:60:00 /36 IAB 🇺🇸 Casabyte Inc. 00:50:C2:A3:40:00 /36 IAB 🇨🇭 Casacom Solutions AG 40:98:4C:00:00:00 /24 MA-L 🇺🇸 CASCADE COMMUNICATIONS 00:40:FB:00:00:00 /24 MA-L 🇺🇸 CASCADE COMMUNICATIONS 00:60:D1:00:00:00 /24 MA-L 🇬🇧 Cascade Technologies Ltd 00:50:C2:7D:E0:00 /36 IAB 🇺🇸 Cascadia Motion LLC 18:C3:E4:B0:00:00 /28 MA-M 🇨🇭 CASCINATION AG D8:7E:6F:00:00:00 /24 MA-L 🇨🇳 CASCO SIGNAL LTD DC:49:C9:00:00:00 /24 MA-L 🇩🇪 CASE Deutschland GmbH 18:C3:E4:D0:00:00 /28 MA-M 🇰🇷 Case Information & Communications 00:50:C2:09:90:00 /36 IAB 🇫🇷 Cash Systemes Industrie 00:02:77:00:00:00 /24 MA-L 🇸🇪 CashGuard Sverige AB 28:89:15:00:00:00 /24 MA-L 🇬🇧 Cashmaster International Limited A0:73:32:00:00:00 /24 MA-L 🇯🇵 CASIO COMPUTER CO. LTD. 08:00:74:00:00:00 /24 MA-L 🇯🇵 Casio Hitachi Mobile Communications Co., Ltd. 00:1F:C7:00:00:00 /24 MA-L 🇨🇳 CASKY eTech Co., Ltd. 3C:24:F0:50:00:00 /28 MA-M 🇺🇸 Caspian 00:16:D2:00:00:00 /24 MA-L 🇺🇸 Caspian Networks 00:50:C2:07:D0:00 /36 IAB 🇩🇪 Cassel Messtechnik GmbH 34:D7:F5:30:00:00 /28 MA-M 🇨🇳 Cassia Networks CC:1B:E0:E0:00:00 /28 MA-M 🇨🇦 CAST Group of Companies Inc. 00:1B:C5:08:60:00 /36 MA-S 🇨🇦 CAST Group of Companies Inc. 70:B3:D5:BD:E0:00 /36 MA-S 🇰🇷 CAST Information Co., Ltd 00:16:F3:00:00:00 /24 MA-L 🇺🇸 Cast Iron Systems 00:50:C2:3F:F0:00 /36 IAB 🇰🇷 castcore 8C:1F:64:20:40:00 /36 MA-S 🇫🇷 CASTEL 00:0E:AF:00:00:00 /24 MA-L 🇭🇰 CASTEL Broadband Limited 00:0B:FE:00:00:00 /24 MA-L 🇺🇸 Castelion Corporation 6C:4E:B0:00:00:00 /24 MA-L 🇺🇸 CASTELLE CORPORATION 00:00:44:00:00:00 /24 MA-L 🇺🇸 CastGrabber, LLC 00:1C:BC:00:00:00 /24 MA-L 🇺🇸 CASTLE ROCK COMPUTING 00:80:2E:00:00:00 /24 MA-L 🇺🇸 CASTLE ROCK, INC. 00:20:5E:00:00:00 /24 MA-L 🇬🇧 Castle Technology Ltd 00:09:95:00:00:00 /24 MA-L 🇹🇼 Castlenet Technology Inc. 00:1C:7B:00:00:00 /24 MA-L 🇹🇼 Castlenet Technology Inc. 00:30:54:00:00:00 /24 MA-L 🇹🇼 Castlenet Technology Inc. 18:48:59:00:00:00 /24 MA-L 🇹🇼 Castlenet Technology Inc. 98:F2:17:00:00:00 /24 MA-L 🇹🇼 Castlenet Technology Inc. FC:4A:E9:00:00:00 /24 MA-L 🇹🇼 Castles Technology, Co., LTD 00:1D:A9:00:00:00 /24 MA-L