Shenzhen C & D Electronics Co., Ltd.

Shenzhen C & D Electronics Co., Ltd. , manages 28 unique MAC address prefixes. These prefixes are part of a massive allocation with a total block size of 45.1 million addresses.

The allocation includes the following types: MA-L (Mac Address Block Large, ~16 million addresses each), and MA-M (Mac Address Block Medium, ~1 Million addresses each).

The company registered its MAC address allocation on 17 March 2011, and the most recent update was made on 19 February 2025. These allocations support network identification and communication globally.

Unique prefixes: 28

Block Size: 45088740 (45.08 M)

First registration: 17 March 2011

Last updated: 19 February 2025

Types

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

MA-M:Mac Address Block Medium. Number of address 2^20 (~1 Million)

MAC PrefixTypeRegistration Date
04:A1:6F:0 MA-M2025-02-19
04:EE:E8:7 MA-M2021-11-10
0C:5C:B5:8 MA-M2021-01-26
10:63:A3:8 MA-M2024-04-02
18:C3:F4:D MA-M2022-06-01
34:46:63:9 MA-M2024-05-20
34:C8:D6:E MA-M2024-01-18
38:A8:CD:7 MA-M2021-07-09
48:5E:0E:0 MA-M2024-07-18
54:A4:93:4 MA-M2019-07-26
58:23:BC:4 MA-M2024-12-30
58:47:CA:6 MA-M2022-06-20
58:95:D8:8 MA-M2020-08-25
64:62:66:7 MA-M2019-12-19
6C:93:08:5 MA-M2022-01-08
70:50:E7:0 MA-M2022-03-18
78:13:05:9 MA-M2021-04-20
78:39:2D:7 MA-M2023-10-26
88:A6:EF:C MA-M2023-05-25
8C:AE:49:E MA-M2020-10-21
B0:47:5E:0 MA-M2024-10-08
C0:48:2F:B MA-M2024-08-21
C4:98:94:7 MA-M2022-07-27
C4:FF:BC:6 MA-M2018-02-15
DC:E5:33:3 MA-M2018-02-15
E8:B4:AE MA-L2011-03-17
EC:74:CD:1 MA-M2024-11-18
F4:20:55:A MA-M2024-06-17