1,633 blocks registered in United Kingdom.

🇬🇧 HME Clear-Com LTD. 00:C0:68:00:00:00 /24 MA-L 🇬🇧 Homaetrix Ltd 00:50:C2:EF:00:00 /36 IAB 🇬🇧 Honey Network Research Limited 00:50:C2:68:00:00 /36 IAB 🇬🇧 Honeywell Analytics Ltd 64:31:39:90:00:00 /28 MA-M 🇬🇧 HTEC Limited 00:50:C2:22:F0:00 /36 IAB 🇬🇧 HTEC Limited 00:50:C2:7D:A0:00 /36 IAB 🇬🇧 HUGH SYMONS CONCEPT Technologies Ltd. 00:10:8E:00:00:00 /24 MA-L 🇬🇧 Huntleigh Healthcare 00:14:DA:00:00:00 /24 MA-L 🇬🇧 Huz Electronics Ltd 70:B3:D5:36:B0:00 /36 MA-S 🇬🇧 Huz Electronics Ltd 8C:1F:64:BC:20:00 /36 MA-S 🇬🇧 HW Communications Ltd E4:50:9A:00:00:00 /24 MA-L 🇬🇧 Hypervolt Ltd 6C:0F:61:00:00:00 /24 MA-L 🇬🇧 HYTEC ELECTRONICS LTD. 00:80:03:00:00:00 /24 MA-L 🇬🇧 I-CUBED LIMITED 00:C0:32:00:00:00 /24 MA-L 🇬🇧 I-Evo Ltd 00:50:C2:DF:C0:00 /36 IAB 🇬🇧 I.C.S. Electronics Limited 00:50:C2:32:80:00 /36 IAB 🇬🇧 IBEX UK Limited 00:50:C2:50:10:00 /36 IAB 🇬🇧 Ibridge Networks & Communications Ltd. 00:25:60:00:00:00 /24 MA-L 🇬🇧 Icon Research Ltd 00:50:C2:F0:70:00 /36 IAB 🇬🇧 Icon Research Ltd. 00:50:C2:02:00:00 /36 IAB 🇬🇧 IDEAL INDUSTRIES Ltd t/a Casella 70:B3:D5:A9:10:00 /36 MA-S 🇬🇧 IDZ Ltd 70:B3:D5:7F:60:00 /36 MA-S 🇬🇧 Image Control Design Limited 00:50:C2:53:A0:00 /36 IAB 🇬🇧 ImageCom Limited 00:05:83:00:00:00 /24 MA-L 🇬🇧 Imagination Technologies Ltd 00:19:F5:00:00:00 /24 MA-L 🇬🇧 Imenco Ltd 70:B3:D5:3D:10:00 /36 MA-S 🇬🇧 Imerge Ltd 00:0A:1A:00:00:00 /24 MA-L 🇬🇧 IMI Norgren Ltd 00:11:82:00:00:00 /24 MA-L 🇬🇧 IMI Thomson Valves 8C:1F:64:86:40:00 /36 MA-S 🇬🇧 Imigix Ltd. 00:50:C2:0C:00:00 /36 IAB 🇬🇧 In Home Displays Ltd 40:56:0C:00:00:00 /24 MA-L 🇬🇧 INDIGO ACTIVE VISION SYSTEMS LIMITED 00:90:AA:00:00:00 /24 MA-L 🇬🇧 Indra Renewable Technologies C8:FF:BF:70:00:00 /28 MA-M 🇬🇧 Industrial Computing Ltd 00:50:C2:A1:50:00 /36 IAB 🇬🇧 Industrial Control and Communication Limited 00:50:C2:8D:90:00 /36 IAB 🇬🇧 Industrial Data Products Ltd 00:50:C2:A3:90:00 /36 IAB 🇬🇧 INFINITE NETWORKS LTD. 00:C0:C2:00:00:00 /24 MA-L 🇬🇧 Infinitive Group Limited 8C:1F:64:A9:10:00 /36 MA-S 🇬🇧 Infinity Electronics Ltd D8:01:EB:00:00:00 /24 MA-L 🇬🇧 Infinity Electronics Ltd FC:E4:98:D0:00:00 /28 MA-M 🇬🇧 INFORMATION TECHNOLOGY LIMITED 00:00:12:00:00:00 /24 MA-L 🇬🇧 INFOTEC LTD 00:0D:9A:00:00:00 /24 MA-L 🇬🇧 Infrared Integrated Systems Ltd 00:21:AC:00:00:00 /24 MA-L 🇬🇧 Initial Electronic Security Systems 00:50:C2:2C:60:00 /36 IAB 🇬🇧 Inmarsat 18:D6:6A:00:00:00 /24 MA-L 🇬🇧 Innovative Electronic Technology 90:C6:82:30:00:00 /28 MA-M 🇬🇧 Innovative Technology Ltd 28:36:38:70:00:00 /28 MA-M 🇬🇧 Inova Design Solutions Ltd 70:B3:D5:13:10:00 /36 MA-S 🇬🇧 INQ Mobile Limited 68:87:6B:00:00:00 /24 MA-L 🇬🇧 INSTEM COMPUTER SYSTEMS, LTD. 00:A0:D3:00:00:00 /24 MA-L 🇬🇧 Instro Precision Limited 70:B3:D5:B8:10:00 /36 MA-S 🇬🇧 Instrumentel Limited 00:50:C2:DC:C0:00 /36 IAB 🇬🇧 InSync Technology Ltd BC:66:41:00:00:00 /28 MA-M 🇬🇧 InSync Technology Ltd 00:50:C2:5C:70:00 /36 IAB 🇬🇧 INTEGRATED BUSINESS NETWORKS 00:80:23:00:00:00 /24 MA-L 🇬🇧 Integrated Design Ltd 40:ED:98:A0:00:00 /28 MA-M 🇬🇧 INTEGRATED MICRO PRODUCTS LTD 00:00:E3:00:00:00 /24 MA-L 🇬🇧 Integrated System Technologies Ltd 1C:91:79:00:00:00 /24 MA-L 🇬🇧 Intelligent Distributed Controls Ltd 00:1B:0A:00:00:00 /24 MA-L 🇬🇧 Intelligent Energy Ltd 70:B3:D5:C5:50:00 /36 MA-S 🇬🇧 Intellimedia Systems Ltd 14:1B:F0:00:00:00 /24 MA-L 🇬🇧 Intellitect Water Ltd 00:1B:F9:00:00:00 /24 MA-L 🇬🇧 INTERCEPT SERVICES LIMITED E8:4C:56:00:00:00 /24 MA-L 🇬🇧 Intergrated Security Mfg. Ltd 00:50:C2:61:80:00 /36 IAB 🇬🇧 INTERLINK COMMUNICATIONS LTD. 00:C0:1C:00:00:00 /24 MA-L 🇬🇧 International Computers, Ltd 00:04:F0:00:00:00 /24 MA-L 🇬🇧 International Computers, Ltd 08:00:0D:00:00:00 /24 MA-L 🇬🇧 Intrinsic Group Limited 70:B3:D5:66:30:00 /36 MA-S 🇬🇧 Invacom Ltd 00:0A:8E:00:00:00 /24 MA-L 🇬🇧 Invensys Controls UK Limited FC:FE:C2:00:00:00 /24 MA-L 🇬🇧 Invertek Drives Ltd 70:B3:D5:93:90:00 /36 MA-S 🇬🇧 Invertek Drives Ltd 8C:1F:64:F7:70:00 /36 MA-S 🇬🇧 Invertek Drives Ltd 8C:1F:64:FC:60:00 /36 MA-S 🇬🇧 Invisible Systems Limited 70:B3:D5:5F:20:00 /36 MA-S 🇬🇧 IO Limited 00:50:C2:00:B0:00 /36 IAB 🇬🇧 iOpt 8C:1F:64:51:40:00 /36 MA-S 🇬🇧 Iosoft Ltd. 00:0B:75:00:00:00 /24 MA-L 🇬🇧 IoT Routers Limited 70:B3:D5:F5:10:00 /36 MA-S 🇬🇧 IoT Tech Limited AC:E9:7F:00:00:00 /24 MA-L 🇬🇧 IP Control Systems Ltd. 00:15:DD:00:00:00 /24 MA-L 🇬🇧 IPaXiom Networks 00:23:E5:00:00:00 /24 MA-L 🇬🇧 IPWireless, Inc. 00:04:D8:00:00:00 /24 MA-L 🇬🇧 ISDI Ltd 8C:1F:64:57:D0:00 /36 MA-S 🇬🇧 ISDN Communications, Ltd. 00:01:DF:00:00:00 /24 MA-L 🇬🇧 iSiS-Ex Limited 70:B3:D5:53:00:00 /36 MA-S 🇬🇧 Isotek Electronics Ltd 00:23:77:00:00:00 /24 MA-L 🇬🇧 IT-IS International 24:6A:AB:00:00:00 /24 MA-L 🇬🇧 IT-IS International Ltd. 00:50:C2:CD:80:00 /36 IAB 🇬🇧 Itrinegy Ltd. 70:B3:D5:BE:D0:00 /36 MA-S 🇬🇧 Itron UK Limited 5C:F2:86:B0:00:00 /28 MA-M 🇬🇧 ITsynergy Ltd 70:B3:D5:D2:A0:00 /36 MA-S 🇬🇧 J & S Marine Ltd. 00:07:16:00:00:00 /24 MA-L 🇬🇧 Jacarta Ltd 70:B3:D5:09:B0:00 /36 MA-S 🇬🇧 JAROGATE LTD. 08:00:61:00:00:00 /24 MA-L 🇬🇧 JESE Ltd 70:B3:D5:0E:20:00 /36 MA-S 🇬🇧 Jiskoot Ltd 00:50:C2:BE:30:00 /36 IAB 🇬🇧 Johnson Matthey 40:F3:85:10:00:00 /28 MA-M 🇬🇧 JTL Systems Ltd. 00:50:C2:A7:50:00 /36 IAB 🇬🇧 JTL Systems Ltd. 8C:1F:64:62:10:00 /36 MA-S 🇬🇧 Jump Trading 1C:82:59:70:00:00 /28 MA-M