Vendor directory
17,370 blocks registered in United States.
Page 74 of 174
Every MA-L, MA-M, MA-S, IAB, and CID block IEEE has ever assigned to a named organization, browsable or searchable.
Unique organizations8,982
Total blocks17,370
MA-L count13,538
MA-M count976
MA-S count1,468
IAB count1,289
CID count99
Total address capacity229,825,597,440
Last changed hereAug 26, 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 States
| Organization | Blocks |
|---|---|
| Apple, Inc. | 1,553 |
| Cisco Systems, Inc | 1,247 |
| IEEE Registration Authority | 436 |
| Texas Instruments | 392 |
| Commscope | 345 |
| Juniper Networks | 209 |
| Amazon Technologies Inc. | 204 |
| Dell Inc. | 184 |
| Hewlett Packard Enterprise | 176 |
| Silicon Laboratories | 154 |
Organization
Prefix
Type
🇺🇸 Entone, Inc.
00:03:E6:00:00:00 /24
MA-L
🇺🇸 Entorian Technologies
00:22:53:00:00:00 /24
MA-L
🇺🇸 ENTOUCH Controls
F8:10:37:00:00:00 /24
MA-L
🇺🇸 Entourage Systems, Inc.
00:25:2C:00:00:00 /24
MA-L
🇺🇸 Entrada Networks
00:E0:B6:00:00:00 /24
MA-L
🇺🇸 ENTRATA COMMUNICATIONS CORP.
00:10:B6:00:00:00 /24
MA-L
🇺🇸 ENTREGA TECHNOLOGIES, INC.
00:50:F8:00:00:00 /24
MA-L
🇺🇸 Entrelogic Corporation
00:0F:54:00:00:00 /24
MA-L
🇺🇸 ENTRIDIA CORPORATION
00:90:49:00:00:00 /24
MA-L
🇺🇸 Entrisphere Inc.
00:08:63:00:00:00 /24
MA-L
🇺🇸 Entropic Communications, Inc.
00:09:8B:00:00:00 /24
MA-L
🇺🇸 Entropix, LLC
24:11:48:00:00:00 /24
MA-L
🇺🇸 Entry Point, LLC
00:1C:00:00:00:00 /24
MA-L
🇺🇸 EntryPoint Networks, Inc
F8:24:DB:00:00:00 /24
MA-L
🇺🇸 Envenergy Inc
00:08:E4:00:00:00 /24
MA-L
🇺🇸 EnVerv Inc.
40:D8:55:0A:F0:00 /36
IAB
🇺🇸 Envision Peripherals Inc
AC:94:03:00:00:00 /24
MA-L
🇺🇸 Eolos IT Corp
1C:88:79:60:00:00 /28
MA-M
🇺🇸 eOn Communications
00:16:79:00:00:00 /24
MA-L
🇺🇸 Eon Instrumentation
8C:1F:64:30:80:00 /36
MA-S
🇺🇸 EON SYSTEMS
00:00:C6:00:00:00 /24
MA-L
🇺🇸 EON Technology, Corp
8C:1F:64:DE:90:00 /36
MA-S
🇺🇸 EOS TECHNOLOGIES, INC.
00:C0:DC:00:00:00 /24
MA-L
🇺🇸 ePBoard Design LLC
EC:63:E5:00:00:00 /24
MA-L
🇺🇸 EPC Energy Inc
8C:1F:64:C5:10:00 /36
MA-S
🇺🇸 EPC Power Corporation
8C:1F:64:26:30:00 /36
MA-S
🇺🇸 EPC Power Corporation
8C:1F:64:87:50:00 /36
MA-S
🇺🇸 EPC Power Corporation
8C:1F:64:9D:90:00 /36
MA-S
🇺🇸 EPCOMM Inc.
6C:DD:EF:00:00:00 /24
MA-L
🇺🇸 EPD Electronics
70:B3:D5:5B:10:00 /36
MA-S
🇺🇸 Epic Systems Inc
00:1E:E7:00:00:00 /24
MA-L
🇺🇸 Epicenter, Inc.
00:0E:D3:00:00:00 /24
MA-L
🇺🇸 Epicom, Inc.
00:13:05:00:00:00 /24
MA-L
🇺🇸 Epigram, Inc.
00:90:4C:00:00:00 /24
MA-L
🇺🇸 EPIImaging
70:B3:D5:B9:50:00 /36
MA-S
🇺🇸 EPILOG CORPORATION
00:D0:D2:00:00:00 /24
MA-L
🇺🇸 EPIN Technologies, Inc.
00:11:15:00:00:00 /24
MA-L
🇺🇸 Epiq Solutions
F4:9E:A4:00:00:00 /24
MA-L
🇺🇸 Epitel, Inc.
F4:90:CB:00:00:00 /28
MA-M
🇺🇸 ePlant, Inc.
8C:1F:64:9F:00:00 /36
MA-S
🇺🇸 Epoch International Enterprises, Inc.
28:2C:02:C0:00:00 /28
MA-M
🇺🇸 eProduction Solutions, Inc.
00:05:D3:00:00:00 /24
MA-L
🇺🇸 Epygi Technologies, Ltd.
00:09:BD:00:00:00 /24
MA-L
🇺🇸 Equal Optics, LLC
F8:F7:D2:00:00:00 /24
MA-L
🇺🇸 EqualLogic Inc
00:09:8A:00:00:00 /24
MA-L
🇺🇸 Equator Technologies
00:07:B1:00:00:00 /24
MA-L
🇺🇸 Equinox Payments
64:54:22:00:00:00 /24
MA-L
🇺🇸 EQUINOX SYSTEMS INC.
00:80:7D:00:00:00 /24
MA-L
🇺🇸 Equipe Communications
00:02:F6:00:00:00 /24
MA-L
🇺🇸 Equitrac Corporation
00:04:B5:00:00:00 /24
MA-L
🇺🇸 Ergatta
68:26:24:00:00:00 /24
MA-L
🇺🇸 ERGO COMPUTING
00:40:A1:00:00:00 /24
MA-L
🇺🇸 ERI (EMPAC RESEARCH INC.)
00:80:6A:00:00:00 /24
MA-L
🇺🇸 Ericsson
00:02:3B:00:00:00 /24
MA-L
🇺🇸 Ericsson
00:10:67:00:00:00 /24
MA-L
🇺🇸 Ericsson
00:30:88:00:00:00 /24
MA-L
🇺🇸 Ericsson
D0:F0:DB:00:00:00 /24
MA-L
🇺🇸 Ericsson - North America
98:FE:03:00:00:00 /24
MA-L
🇺🇸 Eridan
8C:1F:64:C5:60:00 /36
MA-S
🇺🇸 Eridon Corporation
00:50:C2:48:70:00 /36
IAB
🇺🇸 ESCALATE NETWORKS, INC.
00:90:F6:00:00:00 /24
MA-L
🇺🇸 Escape Communications, Inc.
00:18:EF:00:00:00 /24
MA-L
🇺🇸 Escort, Inc.
D8:76:0A:00:00:00 /24
MA-L
🇺🇸 Esensors, Inc.
00:50:C2:39:10:00 /36
IAB
🇺🇸 Esensors, Inc.
00:50:C2:9A:E0:00 /36
IAB
🇺🇸 Esensors, Inc.
00:50:C2:DB:B0:00 /36
IAB
🇺🇸 ESI
00:30:4D:00:00:00 /24
MA-L
🇺🇸 ESI Ventures, LLC
28:36:13:60:00:00 /28
MA-M
🇺🇸 ESI Ventures, LLC
00:50:C2:F0:50:00 /36
IAB
🇺🇸 ESP SYSTEMS, LLC
00:21:EB:00:00:00 /24
MA-L
🇺🇸 eSpace
00:09:DB:00:00:00 /24
MA-L
🇺🇸 ESS Technology, Inc.
00:01:9E:00:00:00 /24
MA-L
🇺🇸 ESSENTIAL COMMUNICATIONS
00:A0:88:00:00:00 /24
MA-L
🇺🇸 Essential Products, Inc.
10:CD:B6:00:00:00 /24
MA-L
🇺🇸 Essential Trading Systems Corp
74:19:F8:30:00:00 /28
MA-M
🇺🇸 EST Analytical
40:D8:55:0C:E0:00 /36
IAB
🇺🇸 EST CORPORATION
00:A0:1E:00:00:00 /24
MA-L
🇺🇸 Estari, Inc.
00:11:EE:00:00:00 /24
MA-L
🇺🇸 ESTeem Wireless Modems, Inc
00:04:3F:00:00:00 /24
MA-L
🇺🇸 ESTONE TECHNOLOGY INC
10:07:23:60:00:00 /28
MA-M
🇺🇸 Eta Compute Inc.
70:50:E7:D0:00:00 /28
MA-M
🇺🇸 ETA-USA
70:B3:D5:23:F0:00 /36
MA-S
🇺🇸 eTauro LLC
54:9A:11:40:00:00 /28
MA-M
🇺🇸 etectRx
F8:B5:68:50:00:00 /28
MA-M
🇺🇸 ETERNA TECHNOLOGY, INC.
48:EB:30:00:00:00 /24
MA-L
🇺🇸 ETHERCOM CORP.
00:A0:EA:00:00:00 /24
MA-L
🇺🇸 ethermetrics
00:50:C2:9C:80:00 /36
IAB
🇺🇸 Etherstuff
00:0A:2B:00:00:00 /24
MA-L
🇺🇸 Ethertronics Inc
6C:05:D5:00:00:00 /24
MA-L
🇺🇸 EtherWAN Systems, Inc.
00:E0:B3:00:00:00 /24
MA-L
🇺🇸 EthoSwitch LLC
48:88:1E:00:00:00 /24
MA-L
🇺🇸 ETM Electromatic Incorporated
00:50:C2:B4:20:00 /36
IAB
🇺🇸 Ettus Research LLC
A0:36:FA:00:00:00 /24
MA-L
🇺🇸 Ettus Research LLC
00:50:C2:85:30:00 /36
IAB
🇺🇸 Etymotic Research, Inc.
00:17:D3:00:00:00 /24
MA-L
🇺🇸 Euclid Laboratories, Inc.
54:2F:89:00:00:00 /24
MA-L
🇺🇸 EUPHONIX, INC.
00:90:D5:00:00:00 /24
MA-L
🇺🇸 EUREK SRL
00:1B:C5:08:D0:00 /36
MA-S
🇺🇸 Eurotech Inc.
00:60:0C:00:00:00 /24
MA-L
🇺🇸 Eurotherm Controls
00:04:88:00:00:00 /24
MA-L