Vendor directory
1,633 blocks registered in United Kingdom.
Page 6 of 17
Every MA-L, MA-M, MA-S, IAB, and CID block IEEE has ever assigned to a named organization, browsable or searchable.
Unique organizations1,364
Total blocks1,633
MA-L count809
MA-M count153
MA-S count370
IAB count293
CID count8
Total address capacity13,870,133,248
Last changed hereOct 7, 2026
Country reflects the address published in the IEEE registration record. It does not indicate where a device was manufactured, sold, located or currently used.
Largest organizations in United Kingdom
Organization
Prefix
Type
🇬🇧 Dynamode Group
24:3C:20:00:00:00 /24
MA-L
🇬🇧 Dyson Limited
44:6F:F8:00:00:00 /24
MA-L
🇬🇧 Dyson Limited
B0:52:1F:00:00:00 /24
MA-L
🇬🇧 Dyson Limited
C0:AF:F2:00:00:00 /24
MA-L
🇬🇧 Dyson Limited
C8:FF:77:00:00:00 /24
MA-L
🇬🇧 E-Domus International Limited
70:2B:1D:00:00:00 /24
MA-L
🇬🇧 E-T-A Circuit Breakers Ltd
00:C3:43:00:00:00 /24
MA-L
🇬🇧 e2v technologies (UK) ltd.
00:18:28:00:00:00 /24
MA-L
🇬🇧 EA Technology Ltd
9C:69:B4:10:00:00 /28
MA-M
🇬🇧 EarTex
70:B3:D5:46:20:00 /36
MA-S
🇬🇧 EarTex
70:B3:D5:62:70:00 /36
MA-S
🇬🇧 EarTex
70:B3:D5:E0:10:00 /36
MA-S
🇬🇧 EasySYNC Ltd.
78:3F:15:00:00:00 /24
MA-L
🇬🇧 ECM Systems Ltd
00:13:26:00:00:00 /24
MA-L
🇬🇧 ECO MONITORING UTILITY SYSTEMS LTD
00:50:C2:ED:30:00 /36
IAB
🇬🇧 EDMI Europe Ltd
1C:23:4F:00:00:00 /24
MA-L
🇬🇧 EDMI Europe Ltd
44:11:02:00:00:00 /24
MA-L
🇬🇧 EDMI Europe Ltd
E4:FE:D9:00:00:00 /24
MA-L
🇬🇧 Edwards Ltd.
00:0C:6D:00:00:00 /24
MA-L
🇬🇧 EGS Technologies Ltd
00:50:C2:DE:40:00 /36
IAB
🇬🇧 EISST International Ltd
A0:22:4E:80:00:00 /28
MA-M
🇬🇧 EISST Ltd
D4:25:CC:30:00:00 /28
MA-M
🇬🇧 EkkoSense Ltd
D0:14:11:00:00:00 /28
MA-M
🇬🇧 Electronic Media Services Ltd
00:50:C2:96:B0:00 /36
IAB
🇬🇧 ELECTROSONIC LTD.
00:E0:AA:00:00:00 /24
MA-L
🇬🇧 Elesar Limited
70:B3:D5:03:F0:00 /36
MA-S
🇬🇧 ELONEX PLC
00:C0:5C:00:00:00 /24
MA-L
🇬🇧 Eloquence Ltd
00:50:C2:03:10:00 /36
IAB
🇬🇧 EM Motorsport Ltd
00:50:C2:59:00:00 /36
IAB
🇬🇧 em-trak
B8:4C:87:10:00:00 /28
MA-M
🇬🇧 Embed Limited
40:D8:55:0D:D0:00 /36
IAB
🇬🇧 Embedded Monitoring Systems Ltd.
00:50:C2:D5:A0:00 /36
IAB
🇬🇧 Emergency Lighting Products Limited
70:B3:D5:48:00:00 /36
MA-S
🇬🇧 Emizon Networks Limited
98:7E:46:00:00:00 /24
MA-L
🇬🇧 EMPEG Ltd
00:02:D7:00:00:00 /24
MA-L
🇬🇧 EMS Satcom
00:11:69:00:00:00 /24
MA-L
🇬🇧 Endeleo Limited
00:0F:3C:00:00:00 /24
MA-L
🇬🇧 Endusis Limited
00:50:C2:11:10:00 /36
IAB
🇬🇧 Enecsys Ltd
34:C6:9A:00:00:00 /24
MA-L
🇬🇧 Energy Technology and Control Ltd.
40:D8:55:1D:A0:00 /36
IAB
🇬🇧 Enigma Diagnostics Limited
28:34:10:00:00:00 /24
MA-L
🇬🇧 Enistic Limited
00:50:C2:F4:C0:00 /36
IAB
🇬🇧 enModus
70:B3:D5:77:20:00 /36
MA-S
🇬🇧 Entotem LTD
B8:D8:12:90:00:00 /28
MA-M
🇬🇧 ePOINT Embedded Computing Limited
70:B3:D5:01:E0:00 /36
MA-S
🇬🇧 ePOINT Embedded Computing Limited
70:B3:D5:B8:C0:00 /36
MA-S
🇬🇧 Equatel
70:B3:D5:91:10:00 /36
MA-S
🇬🇧 EQUIINET LTD.
00:30:74:00:00:00 /24
MA-L
🇬🇧 Erskine Systems Ltd
00:08:BA:00:00:00 /24
MA-L
🇬🇧 Eseye Design Ltd
00:D0:4C:00:00:00 /24
MA-L
🇬🇧 Esprit Digital Ltd
8C:1F:64:EB:D0:00 /36
MA-S
🇬🇧 essensys plc
6C:A4:01:00:00:00 /24
MA-L
🇬🇧 Ethical Lighting and Sensor Solutions Limited
70:B3:D5:5B:60:00 /36
MA-S
🇬🇧 ETL Systems Ltd
00:1E:EE:00:00:00 /24
MA-L
🇬🇧 Eurotech S.p.A.
00:80:66:00:00:00 /24
MA-L
🇬🇧 EUROTHERM LIMITED
00:0A:8D:00:00:00 /24
MA-L
🇬🇧 EV4 Limited
20:2B:DA:C0:00:00 /28
MA-M
🇬🇧 Exi Flow Measurement Ltd
00:50:C2:94:50:00 /36
IAB
🇬🇧 Exi Flow Measurement Ltd
70:B3:D5:7A:E0:00 /36
MA-S
🇬🇧 Exi Flow Measurement Ltd
70:B3:D5:AA:F0:00 /36
MA-S
🇬🇧 Exi Flow Measurement Ltd
8C:1F:64:4E:30:00 /36
MA-S
🇬🇧 Exi Flow Measurement Ltd
8C:1F:64:9C:E0:00 /36
MA-S
🇬🇧 Expro North Sea
00:50:C2:D2:40:00 /36
IAB
🇬🇧 Eyeheight Ltd.
00:1D:76:00:00:00 /24
MA-L
🇬🇧 Ezurio Ltd
00:16:A4:00:00:00 /24
MA-L
🇬🇧 Falling Edge Technology Ltd
8C:1F:64:D7:50:00 /36
MA-S
🇬🇧 FarSite Communications Limited
00:50:C2:B2:20:00 /36
IAB
🇬🇧 Fen Systems Ltd
70:B3:D5:B1:E0:00 /36
MA-S
🇬🇧 Fen Technology Limited
00:50:C2:59:90:00 /36
IAB
🇬🇧 Feritech Ltd.
8C:1F:64:6B:30:00 /36
MA-S
🇬🇧 FERRANTI COMPUTER SYS. LIMITED
08:00:40:00:00:00 /24
MA-L
🇬🇧 FFEI Ltd.
00:1A:B4:00:00:00 /24
MA-L
🇬🇧 FilmLight Limited
00:50:C2:5F:C0:00 /36
IAB
🇬🇧 Filtronic plc
00:0E:D2:00:00:00 /24
MA-L
🇬🇧 Fingoti Limited
8C:1F:64:CD:90:00 /36
MA-S
🇬🇧 Finsoft Ltd
00:1B:83:00:00:00 /24
MA-L
🇬🇧 Fire4 Systems UK Ltd
70:B3:D5:E6:90:00 /36
MA-S
🇬🇧 FireAngel Safety Technology Ltd
E4:1E:0A:A0:00:00 /28
MA-M
🇬🇧 FireBrick Limited
00:03:97:00:00:00 /24
MA-L
🇬🇧 FireBrick Ltd
9C:89:1E:00:00:00 /24
MA-L
🇬🇧 Fischer Connectors
70:B3:D5:BF:70:00 /36
MA-S
🇬🇧 FIVEMERE, LTD.
00:D0:38:00:00:00 /24
MA-L
🇬🇧 Flashbay Limited
48:9D:18:00:00:00 /24
MA-L
🇬🇧 Fleetwood Electronics Ltd
00:50:C2:19:F0:00 /36
IAB
🇬🇧 Flextronics International
00:21:CC:00:00:00 /24
MA-L
🇬🇧 Flextronics International
14:0D:4F:00:00:00 /24
MA-L
🇬🇧 Flintec UK Ltd.
04:C3:E6:B0:00:00 /28
MA-M
🇬🇧 Focusrite Audio Engineering Limited
00:13:0E:00:00:00 /24
MA-L
🇬🇧 Foenix Coding Ltd
8C:1F:64:DA:40:00 /36
MA-S
🇬🇧 Formula One Management Ltd.
00:50:C2:13:D0:00 /36
IAB
🇬🇧 Fortx
FC:62:6F:00:00:00 /24
MA-L
🇬🇧 FOURTHTRACK SYSTEMS
00:60:EB:00:00:00 /24
MA-L
🇬🇧 FOXTECH
20:0F:70:00:00:00 /24
MA-L
🇬🇧 Frame Systems Limited
00:50:C2:8D:C0:00 /36
IAB
🇬🇧 Frazer-Nash Consultancy
8C:1F:64:FA:50:00 /36
MA-S
🇬🇧 Frontier Silicon Ltd
00:22:61:00:00:00 /24
MA-L
🇬🇧 Frontier Silicon Ltd
30:58:90:00:00:00 /24
MA-L
🇬🇧 FRONTIER SMART TECHNOLOGIES LTD
4C:09:FA:00:00:00 /24
MA-L
🇬🇧 FTM Marketing Limited
00:50:C2:9D:C0:00 /36
IAB
🇬🇧 Fujitsu Services Ltd
00:10:8C:00:00:00 /24
MA-L