Nanjing Qinheng Microelectronics Co., Ltd.

Nanjing Qinheng Microelectronics Co., Ltd. , manages 19 unique MAC address prefixes. These prefixes have a total block size of 318.8 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 22 July 2021, and the most recent update was made on 07 October 2026. These allocations support network identification and communication globally.

Unique prefixes: 19

Block Size: 318767085 (318.76 M)

First registration: 22 July 2021

Last updated: 07 October 2026

Types

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

MAC PrefixTypeRegistration Date
0C:3D:5E MA-L2025-08-20
10:A7:1A MA-L2026-09-11
18:F0:55 MA-L2026-08-15
2C:37:FB MA-L2026-10-07
3C:AB:72 MA-L2024-10-15
50:54:7B MA-L2021-07-22
50:F8:AD MA-L2026-07-07
54:14:A7 MA-L2022-12-07
54:6C:50 MA-L2025-12-29
5C:53:10 MA-L2023-10-19
70:19:88 MA-L2024-06-17
9C:7F:64 MA-L2026-03-20
C8:17:F5 MA-L2025-06-07
D0:0C:5E MA-L2026-05-08
DC:04:5A MA-L2025-11-08
DC:32:62 MA-L2024-12-04
E0:4E:7A MA-L2024-01-19
E4:66:E5 MA-L2025-01-13
F4:03:93 MA-L2026-07-30