Espressif MAC Address Prefixes

Espressif makes the ESP8266 and ESP32 Wi-Fi chips inside countless smart plugs, bulbs, sensors and DIY IoT projects.

IEEE blocks
374
Registry names
Espressif Inc. · Espressif Systems (Singapore) Pte. Ltd
MA-L (24-bit OUI)
374
Got a specific address? Look it up in the MAC address lookup →

What to know about Espressif MACs

  • An Espressif MAC almost always means an IoT device. The brand on the box (Shelly, Sonoff, Tuya-based devices and many more) is often not in the registry at all.
  • Putting these devices on their own IoT VLAN is good practice; the OUI makes them easy to identify.

All registered blocks

From the IEEE registry via the oui-data package (a mirror of the IEEE listings) (MA-L, MA-M, MA-S), built 2026-11-01.

MA-L (24-bit OUI): 374 blocks
  • 00:4B:12
  • 00:70:07
  • 00:FB:4A
  • 04:83:08
  • 04:B2:47
  • 08:3A:8D
  • 08:3A:F2
  • 08:92:72
  • 08:A6:F7
  • 08:AD:0A
  • 08:B6:1F
  • 08:D1:F9
  • 08:F9:E0
  • 0C:4E:A0
  • 0C:8B:95
  • 0C:B8:15
  • 0C:DC:7E
  • 10:00:3B
  • 10:06:1C
  • 10:20:BA
  • 10:51:DB
  • 10:52:1C
  • 10:91:A8
  • 10:97:BD
  • 10:A8:5B
  • 10:B4:1D
  • 10:BD:A3
  • 14:08:08
  • 14:2B:2F
  • 14:33:5C
  • 14:63:93
  • 14:C1:9F
  • 18:8B:0E
  • 18:FE:34
  • 1C:29:04
  • 1C:64:65
  • 1C:69:20
  • 1C:8B:84
  • 1C:8F:57
  • 1C:9D:C2
  • 1C:C3:AB
  • 1C:DB:D4
  • 1C:E4:CB
  • 20:25:65
  • 20:43:A8
  • 20:50:0D
  • 20:6E:F1
  • 20:9B:A9
  • 20:D5:C2
  • 20:E5:A4
  • 20:E7:C8
  • 24:0A:C4
  • 24:4C:AB
  • 24:58:7C
  • 24:62:AB
  • 24:6F:28
  • 24:A1:60
  • 24:B2:DE
  • 24:D7:EB
  • 24:DC:C3
  • 24:EC:4A
  • 28:05:A5
  • 28:37:2F
  • 28:56:2F
  • 28:84:85
  • 2C:3A:E8
  • 2C:BC:BB
  • 2C:F4:32
  • 30:30:F9
  • 30:76:F5
  • 30:83:98
  • 30:AE:A4
  • 30:C6:F7
  • 30:C9:22
  • 30:ED:A0
  • 34:5F:45
  • 34:85:18
  • 34:86:5D
  • 34:94:54
  • 34:98:7A
  • 34:AB:95
  • 34:B4:72
  • 34:B7:DA
  • 34:C9:34
  • 34:CD:B0
  • 38:18:2B
  • 38:3E:51
  • 38:44:BE
  • 3C:0D:0D
  • 3C:0F:02
  • 3C:61:05
  • 3C:71:BF
  • 3C:84:27
  • 3C:8A:1F
  • 3C:DC:75
  • 3C:E2:55
  • 3C:E9:0E
  • 40:22:D8
  • 40:2B:D6
  • 40:4C:CA
  • 40:91:51
  • 40:F5:20
  • 44:17:93
  • 44:1B:F6
  • 44:1D:64
  • 44:7B:30
  • 44:B1:76
  • 44:BD:8D
  • 48:27:E2
  • 48:31:B7
  • 48:3F:DA
  • 48:55:19
  • 48:9D:31
  • 48:AF:F3
  • 48:CA:43
  • 48:E7:29
  • 48:F6:EE
  • 4C:11:AE
  • 4C:75:25
  • 4C:84:21
  • 4C:C3:82
  • 4C:EB:D6
  • 50:02:91
  • 50:78:7D
  • 54:16:A5
  • 54:2B:88
  • 54:32:04
  • 54:43:B2
  • 54:5A:A6
  • 54:9D:EA
  • 58:2A:BD
  • 58:2B:D3
  • 58:8C:81
  • 58:B1:45
  • 58:BF:25
  • 58:CF:79
  • 58:E6:C5
  • 5C:01:3B
  • 5C:CF:7F
  • 60:01:94
  • 60:55:F9
  • 64:89:14
  • 64:B7:08
  • 64:E8:33
  • 68:09:47
  • 68:25:DD
  • 68:67:25
  • 68:9D:D2
  • 68:B6:B3
  • 68:C6:3A
  • 68:EE:8F
  • 68:FE:71
  • 6C:2F:A0
  • 6C:3D:D8
  • 6C:B4:56
  • 6C:C4:AF
  • 6C:C8:40
  • 6C:E2:10
  • 70:03:9F
  • 70:04:1D
  • 70:4B:CA
  • 70:AF:09
  • 70:B8:F6
  • 74:4D:BD
  • 74:89:27
  • 78:1C:3C
  • 78:21:84
  • 78:42:1C
  • 78:E3:6D
  • 78:EE:4C
  • 7C:0C:5F
  • 7C:2C:67
  • 7C:4F:AD
  • 7C:73:98
  • 7C:87:CE
  • 7C:9E:BD
  • 7C:D5:44
  • 7C:DF:A1
  • 7C:E8:B1
  • 80:45:6B
  • 80:53:E0
  • 80:64:6F
  • 80:65:99
  • 80:7D:3A
  • 80:B5:4E
  • 80:F1:B2
  • 80:F3:DA
  • 84:0D:8E
  • 84:1F:E8
  • 84:C7:BB
  • 84:CC:A8
  • 84:F3:EB
  • 84:F7:03
  • 84:FC:E6
  • 88:13:BF
  • 88:56:A6
  • 88:57:21
  • 88:F1:55
  • 8C:45:98
  • 8C:4B:14
  • 8C:4F:00
  • 8C:8C:29
  • 8C:94:DF
  • 8C:AA:B5
  • 8C:BF:EA
  • 8C:CE:4E
  • 8C:FD:49
  • 90:15:06
  • 90:38:0C
  • 90:64:9B
  • 90:70:69
  • 90:97:D5
  • 90:B3:39
  • 90:DA:72
  • 90:E5:B1
  • 94:3C:C6
  • 94:51:DC
  • 94:54:C5
  • 94:A9:90
  • 94:B5:55
  • 94:B9:7E
  • 94:E6:86
  • 98:3D:AE
  • 98:88:E0
  • 98:A3:16
  • 98:C3:77
  • 98:CD:AC
  • 98:F4:AB
  • 9C:13:9E
  • 9C:96:D5
  • 9C:9C:1F
  • 9C:9E:6E
  • 9C:CC:01
  • A0:20:A6
  • A0:60:25
  • A0:76:4E
  • A0:85:E3
  • A0:A3:B3
  • A0:B7:65
  • A0:DD:6C
  • A0:F2:62
  • A4:7B:9D
  • A4:CB:8F
  • A4:CF:12
  • A4:E5:7C
  • A4:E9:72
  • A4:F0:0F
  • A8:03:2A
  • A8:42:E3
  • A8:46:74
  • A8:48:FA
  • A8:FD:07
  • AC:0B:FB
  • AC:15:18
  • AC:27:6E
  • AC:67:B2
  • AC:A2:6A
  • AC:A7:04
  • AC:D0:74
  • AC:EB:E6
  • B0:3F:D3
  • B0:81:84
  • B0:A6:04
  • B0:A7:32
  • B0:B2:1C
  • B0:CB:D8
  • B4:3A:45
  • B4:8A:0A
  • B4:A6:4A
  • B4:BF:E9
  • B4:E6:2D
  • B4:FE:B5
  • B8:1F:3F
  • B8:7B:4D
  • B8:BB:11
  • B8:D6:1A
  • B8:F0:09
  • B8:F8:62
  • BC:19:26
  • BC:DD:C2
  • BC:FF:4D
  • C0:49:EF
  • C0:4E:30
  • C0:5D:89
  • C0:CD:D6
  • C4:4F:33
  • C4:5B:BE
  • C4:9E:7E
  • C4:D8:D5
  • C4:DD:57
  • C4:DE:E2
  • C8:2B:96
  • C8:2E:18
  • C8:85:41
  • C8:8A:7B
  • C8:C9:A3
  • C8:DA:29
  • C8:EA:71
  • C8:ED:8B
  • C8:F0:9E
  • CC:50:E3
  • CC:68:C7
  • CC:7B:5C
  • CC:7E:1F
  • CC:8D:A2
  • CC:BA:97
  • CC:DB:A7
  • CC:E7:32
  • D0:9A:AF
  • D0:CF:13
  • D0:EF:76
  • D4:05:92
  • D4:8A:FC
  • D4:8C:49
  • D4:D4:DA
  • D4:E9:F4
  • D4:F9:8D
  • D8:13:2A
  • D8:3B:DA
  • D8:85:AC
  • D8:A0:1D
  • D8:BC:38
  • D8:BF:C0
  • D8:F1:5B
  • DC:06:75
  • DC:0A:69
  • DC:1E:D5
  • DC:4F:22
  • DC:54:75
  • DC:55:B1
  • DC:B4:D9
  • DC:DA:0C
  • E0:5A:1B
  • E0:72:A1
  • E0:8C:FE
  • E0:98:06
  • E0:E2:E6
  • E4:65:B8
  • E4:B0:63
  • E4:B3:23
  • E8:06:90
  • E8:31:CD
  • E8:3D:C1
  • E8:68:E7
  • E8:6B:EA
  • E8:9F:6D
  • E8:DB:84
  • E8:ED:BD
  • E8:F6:0A
  • EC:62:60
  • EC:64:C9
  • EC:94:CB
  • EC:C9:FF
  • EC:D6:1B
  • EC:DA:3B
  • EC:E3:34
  • EC:FA:BC
  • F0:08:D1
  • F0:16:1D
  • F0:24:F9
  • F0:9E:9E
  • F0:F5:BD
  • F4:12:FA
  • F4:2D:C9
  • F4:65:0B
  • F4:CF:A2
  • F8:0C:4E
  • F8:43:EE
  • F8:5B:1B
  • F8:B3:B7
  • FC:01:2C
  • FC:B4:67
  • FC:E8:C0
  • FC:F5:C4

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Related: MAC address lookup · MAC to IPv6 (EUI-64) · all vendors