Vendor directory

17,372 blocks registered in United States.

Page 94 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 94:05:BB:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 94:3E:FD:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 94:C9:B7:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 94:CC:04:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 94:FB:A7:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:02:D8:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:06:37:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:27:82:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:6D:35:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:6E:E8:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:80:BB:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:8F:E0:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:AA:FC:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:F9:C7:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 98:FC:84:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 9C:43:1E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 9C:69:B4:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 9C:E4:50:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 9C:E5:49:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority 9C:F6:DD:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:02:4A:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:19:B2:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:22:4E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:24:90:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:28:33:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:3E:6B:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:BB:3E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A0:C5:F2:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:11:63:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:3B:FA:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:4F:29:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:4F:3E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:53:EE:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:58:0F:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:59:D3:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:DA:22:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A4:ED:43:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A8:3F:A1:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority A8:5B:36:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority AC:1D:DF:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority AC:64:DD:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority AC:86:D1:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority AC:EF:92:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B0:1F:81:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B0:47:5E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B0:B3:53:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B0:C5:CA:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B0:CC:CE:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B0:FD:0B:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B0:FF:72:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B4:37:D1:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B4:4B:D6:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B4:4D:43:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B4:A2:EB:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B4:AB:F3:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B4:DF:43:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B8:4C:87:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority B8:D8:12:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority BC:31:98:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority BC:34:00:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority BC:66:41:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority BC:97:40:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority BC:DF:E1:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:22:F1:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:48:2F:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:61:9A:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:83:59:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:9B:F4:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:D3:91:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:EA:C3:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C0:FB:F9:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:7C:8D:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:83:72:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:95:4D:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:98:94:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:A1:0E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:A5:59:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:CC:37:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:FF:84:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C4:FF:BC:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C8:2C:2B:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C8:5C:E2:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C8:63:14:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C8:6B:BC:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C8:8E:D1:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C8:F5:D6:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority C8:FF:BF:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:1B:E0:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:22:37:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:39:53:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:4F:5C:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:C2:61:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:D3:1E:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:D3:9D:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority CC:E7:DE:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority D0:14:11:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority D0:15:BB:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority D0:16:F0:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority D0:22:12:00:00:00 /24 MA-L 🇺🇸 IEEE Registration Authority D0:5F:64:00:00:00 /24 MA-L
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