Vendor directory
17,400 blocks registered in United States.
Page 173 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 organizations8,990
Total blocks17,400
MA-L count13,564
MA-M count977
MA-S count1,471
IAB count1,289
CID count99
Total address capacity230,262,865,920
Last changed hereSep 4, 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 | 400 |
| Commscope | 345 |
| Juniper Networks | 211 |
| Amazon Technologies Inc. | 204 |
| Dell Inc. | 184 |
| Hewlett Packard Enterprise | 176 |
| Silicon Laboratories | 156 |
Organization
Prefix
Type
🇺🇸 Xiotech Corporation
00:1F:93:00:00:00 /24
MA-L
🇺🇸 Xiotech Corporation
00:D0:B2:00:00:00 /24
MA-L
🇺🇸 XIOX
00:D0:ED:00:00:00 /24
MA-L
🇺🇸 Xipher Embedded Networking
00:50:C2:2A:40:00 /36
IAB
🇺🇸 Xipher Technologies, LLC
00:19:76:00:00:00 /24
MA-L
🇺🇸 Xiranet Communications GmbH
00:15:6F:00:00:00 /24
MA-L
🇺🇸 XIRCOM
00:05:3C:00:00:00 /24
MA-L
🇺🇸 XIRCOM
00:10:A4:00:00:00 /24
MA-L
🇺🇸 XIRCOM
00:80:C7:00:00:00 /24
MA-L
🇺🇸 Xirgo Technologies LLC
E8:6C:C7:20:00:00 /28
MA-M
🇺🇸 Xirgo Technologies LLC
70:B3:D5:1A:20:00 /36
MA-S
🇺🇸 Xirgo Technologies LLC
70:B3:D5:64:60:00 /36
MA-S
🇺🇸 Xirgo Technologies LLC
70:B3:D5:CA:00:00 /36
MA-S
🇺🇸 Xirgo Technologies LLC
70:B3:D5:CE:B0:00 /36
MA-S
🇺🇸 Xirrus
00:0F:7D:00:00:00 /24
MA-L
🇺🇸 Xirrus Inc.
50:60:28:00:00:00 /24
MA-L
🇺🇸 Xirrus, Inc.
48:C0:93:00:00:00 /24
MA-L
🇺🇸 Xitron
70:B3:D5:38:80:00 /36
MA-S
🇺🇸 XITRON TECHNOLOGIES, INC.
00:50:B9:00:00:00 /24
MA-L
🇺🇸 XK22 Enterprises, LLC
00:05:BA:00:00:00 /24
MA-L
🇺🇸 XKL LLC
00:A0:E3:00:00:00 /24
MA-L
🇺🇸 Xlera Solutions, LLC
8C:1F:64:ED:F0:00 /36
MA-S
🇺🇸 XLNT DESIGNS INC.
00:40:2F:00:00:00 /24
MA-L
🇺🇸 XN TECHNOLOGIES
00:D0:47:00:00:00 /24
MA-L
🇺🇸 XNET TECHNOLOGY, INC.
00:20:DB:00:00:00 /24
MA-L
🇺🇸 XoByte LLC
00:50:C2:AF:F0:00 /36
IAB
🇺🇸 XOS
2C:00:F7:00:00:00 /24
MA-L
🇺🇸 XPAK MSA Group
00:0A:CB:00:00:00 /24
MA-L
🇺🇸 Xpeed, Inc.
00:03:20:00:00:00 /24
MA-L
🇺🇸 XPEED, INC.
00:50:7A:00:00:00 /24
MA-L
🇺🇸 Xperi Corporation
DA:41:62:00:00:00 /24
CID
🇺🇸 Xplore Technologies Corp
00:50:C2:E8:20:00 /36
IAB
🇺🇸 XPOINT TECHNOLOGIES, INC.
00:A0:89:00:00:00 /24
MA-L
🇺🇸 xRAN.org
FA:EB:6E:00:00:00 /24
CID
🇺🇸 Xrite Inc
00:50:03:00:00:00 /24
MA-L
🇺🇸 Xslent Energy Technologies. LLC
E0:1F:0A:00:00:00 /24
MA-L
🇺🇸 Xslent Energy Technologies. LLC
00:50:C2:BC:20:00 /36
IAB
🇺🇸 XStore, Inc.
00:50:C2:12:00:00 /36
IAB
🇺🇸 XStreamHD
00:18:2E:00:00:00 /24
MA-L
🇺🇸 XSTREAMIS PLC
00:10:87:00:00:00 /24
MA-L
🇺🇸 XTec, Incorporated
00:0F:EE:00:00:00 /24
MA-L
🇺🇸 XtendWave
00:50:C2:76:30:00 /36
IAB
🇺🇸 Xtensor Systems Inc.
00:50:C2:84:30:00 /36
IAB
🇺🇸 Xtera Communications, Inc.
00:04:F9:00:00:00 /24
MA-L
🇺🇸 Xtone Networks
00:50:C2:91:A0:00 /36
IAB
🇺🇸 xTools Inc.
8C:1F:64:9A:A0:00 /36
MA-S
🇺🇸 XTP SYSTEMS, INC.
00:80:E0:00:00:00 /24
MA-L
🇺🇸 Xtra Technology LLC
EC:9E:EA:00:00:00 /24
MA-L
🇺🇸 Xtreme Power Systems
5C:D1:35:00:00:00 /24
MA-L
🇺🇸 XtremeSpectrum, Inc.
00:0C:0E:00:00:00 /24
MA-L
🇺🇸 XTS CORP
A8:1B:18:00:00:00 /24
MA-L
🇺🇸 XY Sense, Inc.
BC:DF:E1:C0:00:00 /28
MA-M
🇺🇸 XYCOM INC.
00:60:00:00:00:00 /24
MA-L
🇺🇸 Xycom VME
00:50:C2:37:70:00 /36
IAB
🇺🇸 XYLOGICS INC
00:80:2D:00:00:00 /24
MA-L
🇺🇸 Xyplex, Inc.
00:A0:9C:00:00:00 /24
MA-L
🇺🇸 Xyplex, Inc.
08:00:87:00:00:00 /24
MA-L
🇺🇸 XYRON CORPORATION
00:80:93:00:00:00 /24
MA-L
🇺🇸 Xyterra Computing, Inc.
00:07:54:00:00:00 /24
MA-L
🇺🇸 Xytronix Research & Design, Inc.
00:0C:C8:00:00:00 /24
MA-L
🇺🇸 XYVISION INC.
08:00:8D:00:00:00 /24
MA-L
🇺🇸 YAFO Networks, Inc.
00:04:89:00:00:00 /24
MA-L
🇺🇸 Yamaichi Electronics
AA:0F:85:00:00:00 /24
CID
🇺🇸 Yardney Technical Products Inc.
00:50:C2:D4:D0:00 /36
IAB
🇺🇸 Yazaki North America, Inc.
00:50:C2:1D:00:00 /36
IAB
🇺🇸 YEHL & JORDAN LLC
70:B3:D5:E0:20:00 /36
MA-S
🇺🇸 Yellowbrick Data, Inc.
38:B8:EB:D0:00:00 /28
MA-M
🇺🇸 Yipee, Inc.
00:06:55:00:00:00 /24
MA-L
🇺🇸 Yohana
D0:21:AC:00:00:00 /24
MA-L
🇺🇸 YORKVILLE SOUND INC.
00:16:05:00:00:00 /24
MA-L
🇺🇸 Yotta Networks, Inc.
00:05:9F:00:00:00 /24
MA-L
🇺🇸 Young Chang Co. Ltd.
00:05:F6:00:00:00 /24
MA-L
🇺🇸 Young Electric Sign Co
44:37:6F:00:00:00 /24
MA-L
🇺🇸 YSI, Inc.
7C:55:E7:00:00:00 /24
MA-L
🇺🇸 YULISTA INTEGRATED SOLUTION
8C:1F:64:12:80:00 /36
MA-S
🇺🇸 YX Wireless S.A.
00:1D:30:00:00:00 /24
MA-L
🇺🇸 Z-App Systems
00:50:C2:88:C0:00 /36
IAB
🇺🇸 Z-App Systems, Inc.
00:50:C2:C2:B0:00 /36
IAB
🇺🇸 Z-App Systems, Inc.
00:50:C2:F4:A0:00 /36
IAB
🇺🇸 Z-meta Research LLC
60:61:DF:00:00:00 /24
MA-L
🇺🇸 Z3 Technology
40:CD:3A:00:00:00 /24
MA-L
🇺🇸 Zabacom, Inc.
00:50:C2:02:30:00 /36
IAB
🇺🇸 ZACCESS Systems
00:03:B7:00:00:00 /24
MA-L
🇺🇸 Zadar Labs Inc
8C:1F:64:06:00:00 /36
MA-S
🇺🇸 Zadara Storage Ltd.
B0:7E:70:00:00:00 /24
MA-L
🇺🇸 Zaffire
00:30:CE:00:00:00 /24
MA-L
🇺🇸 ZaiNar
08:26:AE:20:00:00 /28
MA-M
🇺🇸 Zalliant LLC
28:1B:04:00:00:00 /24
MA-L
🇺🇸 Zambeel Inc
00:0A:C9:00:00:00 /24
MA-L
🇺🇸 ZANTAZ, Inc
00:1D:55:00:00:00 /24
MA-L
🇺🇸 Zarak Systems Corp.
00:50:C2:0A:E0:00 /36
IAB
🇺🇸 Zaxcom Inc
70:B3:D5:9C:C0:00 /36
MA-S
🇺🇸 Zcomax Technologies, Inc.
00:13:54:00:00:00 /24
MA-L
🇺🇸 ZCOMM, INC.
00:C0:DE:00:00:00 /24
MA-L
🇺🇸 Zebra Technologies Corp.
00:07:4D:00:00:00 /24
MA-L
🇺🇸 Zebra Technologies Corp.
74:93:A4:00:00:00 /24
MA-L
🇺🇸 Zebra Technologies Inc
00:05:12:00:00:00 /24
MA-L
🇺🇸 Zebra Technologies Inc
00:15:70:00:00:00 /24
MA-L
🇺🇸 Zebra Technologies Inc
00:23:68:00:00:00 /24
MA-L
🇺🇸 Zebra Technologies Inc
00:A0:F8:00:00:00 /24
MA-L