1,626 blocks registered in United Kingdom.

🇬🇧 Chamsys Ltd 00:1B:C5:04:20:00 /36 MA-S 🇬🇧 Chamsys Ltd 70:B3:D5:0B:E0:00 /36 MA-S 🇬🇧 Chamsys Ltd 8C:1F:64:FF:80:00 /36 MA-S 🇬🇧 CHASE COMMUNICATIONS 00:D0:AA:00:00:00 /24 MA-L 🇬🇧 CHASE RESEARCH LTD. 00:80:D4:00:00:00 /24 MA-L 🇬🇧 CHECKOUT COMPUTER SYSTEMS, LTD 00:30:25:00:00:00 /24 MA-L 🇬🇧 Chell Instruments Ltd 00:50:C2:57:20:00 /36 IAB 🇬🇧 Chell Instruments Ltd 8C:1F:64:71:A0:00 /36 MA-S 🇬🇧 Chelsea Technologies Group Ltd 70:B3:D5:57:90:00 /36 MA-S 🇬🇧 Chelton Limited 00:1E:70:00:00:00 /24 MA-L 🇬🇧 CHEVIN SOFTWARE ENG. LTD. 00:20:8E:00:00:00 /24 MA-L 🇬🇧 Chiron Technology Ltd 00:11:78:00:00:00 /24 MA-L 🇬🇧 Chronos Technology Ltd. 58:E8:76:70:00:00 /28 MA-M 🇬🇧 Chronos Technology Ltd. 00:50:C2:9A:D0:00 /36 IAB 🇬🇧 Chubb Electronic Security Systems Ltd 00:1C:5B:00:00:00 /24 MA-L 🇬🇧 Cisco Systems Inc 00:1B:67:00:00:00 /24 MA-L 🇬🇧 CITA SMART SOLUTIONS LTD 2C:D1:41:E0:00:00 /28 MA-M 🇬🇧 Citel 00:10:01:00:00:00 /24 MA-L 🇬🇧 Citel Technologies Ltd. 00:06:E4:00:00:00 /24 MA-L 🇬🇧 City Computing Ltd 00:50:C2:FD:60:00 /36 IAB 🇬🇧 CLARESYS LIMITED 70:B3:D5:48:50:00 /36 MA-S 🇬🇧 Clear Flow by Antiference 50:DE:19:10:00:00 /28 MA-M 🇬🇧 Clear Flow by Antiference 70:B3:D5:1C:E0:00 /36 MA-S 🇬🇧 Clicks Technology Ltd 18:C3:E4:60:00:00 /28 MA-M 🇬🇧 Clifford Chance LLP 00:50:C2:2F:60:00 /36 IAB 🇬🇧 Clive Green & Co. Ltd. 00:50:C2:00:70:00 /36 IAB 🇬🇧 Clockwork Dog 70:B3:D5:5D:70:00 /36 MA-S 🇬🇧 Clockwork Dog 8C:1F:64:C5:30:00 /36 MA-S 🇬🇧 Cloudview Limited A8:61:AA:00:00:00 /24 MA-L 🇬🇧 Cocoon Alarm Ltd 7C:73:8B:00:00:00 /24 MA-L 🇬🇧 Coda Octopus Products Limited 70:B3:D5:4D:90:00 /36 MA-S 🇬🇧 Codex Digital Limited 20:F5:10:00:00:00 /24 MA-L 🇬🇧 Codex Digital Ltd 00:50:C2:90:80:00 /36 IAB 🇬🇧 Codian Ltd 00:0D:7C:00:00:00 /24 MA-L 🇬🇧 COE Limited 00:50:C2:12:10:00 /36 IAB 🇬🇧 COE Limited 00:50:C2:66:30:00 /36 IAB 🇬🇧 Cogent Defence & Security Networks, 00:0C:3F:00:00:00 /24 MA-L 🇬🇧 Cogent Healthcare Systems Ltd E8:94:4C:00:00:00 /24 MA-L 🇬🇧 Coherent Research Limited 00:17:BF:00:00:00 /24 MA-L 🇬🇧 COLORGRAPH LTD 00:40:1F:00:00:00 /24 MA-L 🇬🇧 COMENDEC LTD 00:40:60:00:00:00 /24 MA-L 🇬🇧 CommAgility Ltd 00:21:E0:00:00:00 /24 MA-L 🇬🇧 Common Sense Monitoring Solutions Ltd. 70:B3:D5:0D:10:00 /36 MA-S 🇬🇧 CommScope Inc 00:40:20:00:00:00 /24 MA-L 🇬🇧 COMMUNICATIONS ELECTRONICS SECURITY GROUP 00:10:C8:00:00:00 /24 MA-L 🇬🇧 Comodo 00:50:C2:31:10:00 /36 IAB 🇬🇧 COMPACT DATA, LTD. 00:A0:A0:00:00:00 /24 MA-L 🇬🇧 Companies House to GlucoRx Technologies Ltd. E8:26:B6:00:00:00 /24 MA-L 🇬🇧 CompanyDeep 24:5D:FC:00:00:00 /28 MA-M 🇬🇧 Complementary Technologies Ltd 00:05:11:00:00:00 /24 MA-L 🇬🇧 Complete Media Systems 00:15:FD:00:00:00 /24 MA-L 🇬🇧 Compulogic Limited 00:0D:06:00:00:00 /24 MA-L 🇬🇧 COMPUTER OPERATIONAL 00:C0:C4:00:00:00 /24 MA-L 🇬🇧 Computime Systems UK Ltd. 00:50:C2:44:C0:00 /36 IAB 🇬🇧 CompXs Limited 00:0D:EB:00:00:00 /24 MA-L 🇬🇧 Comtrol Europe, Ltd. 00:01:EE:00:00:00 /24 MA-L 🇬🇧 Concept Pro Surveillance 34:7F:63:00:00:00 /24 MA-L 🇬🇧 Concept Pro Surveillance 8C:1F:64:DF:50:00 /36 MA-S 🇬🇧 Concurrent Technologies Ltd. 00:40:9E:00:00:00 /24 MA-L 🇬🇧 Confidence Direct Ltd 00:50:C2:26:40:00 /36 IAB 🇬🇧 Connected Home 1C:73:28:00:00:00 /24 MA-L 🇬🇧 Connected Home 44:7F:77:00:00:00 /24 MA-L 🇬🇧 Connected Response 70:B3:D5:C9:C0:00 /36 MA-S 🇬🇧 Connido Limited 70:B3:D5:71:D0:00 /36 MA-S 🇬🇧 Consort Controls Ltd 0C:9D:56:00:00:00 /24 MA-L 🇬🇧 Consultronics Europe Ltd 00:14:43:00:00:00 /24 MA-L 🇬🇧 Control Techniques 00:0D:1E:00:00:00 /24 MA-L 🇬🇧 Cooltera Limited 70:B3:D5:DD:50:00 /36 MA-S 🇬🇧 Cooltera Limited 8C:1F:64:5C:40:00 /36 MA-S 🇬🇧 Corintech Ltd. 98:8B:AD:00:00:00 /24 MA-L 🇬🇧 Cosworth Electronics Ltd 00:E0:B7:00:00:00 /24 MA-L 🇬🇧 COTT Electronics 50:62:55:D0:00:00 /28 MA-M 🇬🇧 COTT Electronics 70:B3:D5:D2:30:00 /36 MA-S 🇬🇧 COUNTER SOLUTIONS LTD. 00:20:C3:00:00:00 /24 MA-L 🇬🇧 CPC (UK) 8C:1F:64:39:10:00 /36 MA-S 🇬🇧 CRAY COMMUNICATIONS, LTD. 00:00:6D:00:00:00 /24 MA-L 🇬🇧 Creative Electronics Ltd 70:B3:D5:5E:C0:00 /36 MA-S 🇬🇧 CreevX 70:B3:D5:BF:40:00 /36 MA-S 🇬🇧 CRESTCHIC (UK) LIMITED 80:1D:0D:80:00:00 /28 MA-M 🇬🇧 CRFS Limited 00:1E:89:00:00:00 /24 MA-L 🇬🇧 CRISTIE ELECTRONICS LTD. 00:A0:C4:00:00:00 /24 MA-L 🇬🇧 Criterion Systems Limited 00:50:C2:50:20:00 /36 IAB 🇬🇧 Crompton Instruments 60:10:A2:00:00:00 /24 MA-L 🇬🇧 Cronus Electronics 8C:1F:64:B0:80:00 /36 MA-S 🇬🇧 Cross Products Ltd. 00:50:C2:01:B0:00 /36 IAB 🇬🇧 Crystal Vision Ltd 84:DE:3D:00:00:00 /24 MA-L 🇬🇧 Crystal Vision Ltd 00:50:C2:26:C0:00 /36 IAB 🇬🇧 CSE-Servelec Limited 18:9A:67:00:00:00 /24 MA-L 🇬🇧 CSL Dualcom Ltd 54:AE:D2:00:00:00 /24 MA-L 🇬🇧 Curvalux 40:9C:A6:00:00:00 /24 MA-L 🇬🇧 Custom Micro Products, Ltd. 00:01:CE:00:00:00 /24 MA-L 🇬🇧 CyanConnode 00:1B:C5:0C:60:00 /36 MA-S 🇬🇧 CyanConnode 00:50:C2:18:70:00 /36 IAB 🇬🇧 Cyber1st 24:4E:7B:80:00:00 /28 MA-M 🇬🇧 Cymtec Ltd 70:B3:D5:90:30:00 /36 MA-S 🇬🇧 Cyrus Audio LTD 0C:CC:47:70:00:00 /28 MA-M 🇬🇧 D-TACQ Solutions Ltd 00:21:54:00:00:00 /24 MA-L 🇬🇧 Daatrics LTD 58:48:49:B0:00:00 /28 MA-M 🇬🇧 Daatrics LTD 70:B3:D5:A5:F0:00 /36 MA-S 🇬🇧 Daatrics LTD 70:B3:D5:B6:90:00 /36 MA-S