Vendor directory

17,372 blocks registered in United States.

Page 92 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 blocks17,372
MA-L count13,540
MA-M count976
MA-S count1,468
IAB count1,289
CID count99
Total address capacity229,859,151,872
Last changed hereAug 29, 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 Prefix Type
🇺🇸 IEEE Registration Authority 20:B3:7F:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 20:CE:2A:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 24:15:10:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 24:4E:7B:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 24:5D:FC:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 24:86:25:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 24:A1:0D:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 24:A3:F0:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 28:2C:02:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 28:36:13:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 28:36:38:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 28:B7:7C:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 28:F5:37:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 28:F8:C6:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 28:FD:80:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:16:BD:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:26:5F:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:27:9E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:48:35:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:69:1D:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:6A:6F:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:7A:F4:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:C4:4F:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 2C:D1:41:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 30:09:F9:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 30:0A:60:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 30:1F:9A:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 30:3D:51:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 30:43:D7:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 30:49:50:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 30:BB:28:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:00:8A:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:04:9E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:29:8F:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:46:63:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:B5:F3:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:C8:D6:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:D0:B8:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:D7:F5:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 34:E1:D1:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:05:25:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:1F:26:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:3A:21:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:73:EA:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:A8:CD:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:B1:4E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:B1:9E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:B8:EB:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:F7:CD:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 38:FD:FE:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 3C:24:F0:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 3C:39:E7:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 3C:42:7E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 3C:6A:2C:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 3C:DC:03:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 3C:FA:D3:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 40:11:75:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 40:2C:76:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 40:48:FD:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 40:D8:55:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 40:ED:98:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 40:F3:85:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 44:03:77:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 44:6F:D8:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 44:A9:2C:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 44:D5:F2:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 48:08:EB:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 48:0B:B2:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 48:5E:0E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 48:65:EE:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 48:DA:35:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 48:E6:63:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 48:E6:C6:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:4B:F9:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:65:A8:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:6E:44:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:74:A7:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:91:7A:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:93:A6:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:BC:98:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:E1:73:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 4C:EA:41:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:0B:91:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:19:11:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:48:2C:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:62:55:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:A0:30:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:A4:D0:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:DE:19:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:FA:CB:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 50:FF:99:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 54:08:3B:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 54:91:AF:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 54:9A:11:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 54:A4:93:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 58:20:8A:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 58:23:BC:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 58:47:CA:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 58:48:49:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 58:76:07:00:00:00 /24 MA-L
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