Espressif Systems (Singapore) Pte. Ltd

Espressif Systems (Singapore) Pte. Ltd , manages 15 unique MAC address prefixes. These prefixes have a total block size of 251.7 million addresses.

The allocation includes the following types: MA-L(Mac Address Block Large, 16,777,216 addresses each).

The company registered its MAC address allocation on 17 June 2026, and the most recent update was made on 14 October 2026. These allocations support network identification and communication globally.

Unique prefixes: 15

Block Size: 251658225 (251.65 M)

First registration: 17 June 2026

Last updated: 14 October 2026

Types

MA-L:Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

MAC PrefixTypeRegistration Date
10:A8:5B MA-L2026-09-26
1C:8B:84 MA-L2026-08-24
1C:E4:CB MA-L2026-08-31
20:D5:C2 MA-L2026-07-01
20:E5:A4 MA-L2026-10-14
3C:0D:0D MA-L2026-08-31
54:16:A5 MA-L2026-09-18
6C:3D:D8 MA-L2026-06-17
6C:C4:AF MA-L2026-10-14
6C:E2:10 MA-L2026-09-26
9C:96:D5 MA-L2026-08-24
AC:A2:6A MA-L2026-09-18
B8:BB:11 MA-L2026-07-27
C8:DA:29 MA-L2026-07-17
D0:9A:AF MA-L2026-08-06