Find the vendor name of a device by entering an OUI or a MAC address
Taicang T&W Electronics
Taicang T&W Electronics, accessible at www.twsz.com, manages 47 unique MAC address prefixes. These prefixes have a total block size of 756 million addresses.
The allocation includes the following types: MA-L(MAC Address Block Large, 16,777,216 addresses each), MA-M(MAC Address Block Medium, 1,048,576 addresses each) and MA-S(MAC Address Block Small, previously named OUI-36, encompasses IAB assignments, 4,096 addresses each).
The company registered its MAC address allocation on 22 April 2014, and the most recent update was made on 08 September 2026. These allocations support network identification and communication globally.
Entity Details
Types
MA-L: Block Type
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)MA-M: Block Type
Mac Address Block Medium. Number of address 2^20 (~1 Million)MA-S: Block Type
Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)Registered MAC Prefixes
All Organizationally Unique Identifiers and MAC ranges assigned to this vendor
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 04:25:E0 | MA-L | 2021-01-27 |
| 04:75:F9 | MA-L | 2021-10-23 |
| 14:58:08 | MA-L | 2021-06-29 |
| 18:45:93 | MA-L | 2020-03-17 |
| 18:45:B3:D | MA-M | 2021-09-25 |
| 1C:42:B8 | MA-L | 2026-09-08 |
| 24:0B:88 | MA-L | 2020-11-03 |
| 2C:DD:95 | MA-L | 2016-07-14 |
| 38:E3:C5 | MA-L | 2015-11-17 |
| 40:33:06 | MA-L | 2022-05-27 |
| 4C:06:17 | MA-L | 2022-10-17 |
| 4C:81:20 | MA-L | 2017-01-07 |
| 50:1B:32 | MA-L | 2019-03-08 |
| 50:88:C7 | MA-L | 2025-05-05 |
| 54:37:BB | MA-L | 2021-03-16 |
| 5C:8C:30 | MA-L | 2022-03-24 |
| 5C:F9:FD | MA-L | 2020-08-13 |
| 60:BD:2C | MA-L | 2023-05-22 |
| 64:D9:54 | MA-L | 2014-04-22 |
| 6C:C6:3B | MA-L | 2019-10-23 |
| 74:3C:18 | MA-L | 2019-07-25 |
| 78:4F:24 | MA-L | 2022-07-27 |
| 80:49:BF | MA-L | 2025-08-25 |
| 80:AE:3C | MA-L | 2025-06-25 |
| 84:C6:65 | MA-L | 2026-01-12 |
| 8C:1F:64:FF:B | MA-S | 2025-06-03 |
| 90:03:2E | MA-L | 2024-06-03 |
| 90:0A:1A | MA-L | 2017-03-29 |
| A0:9B:17 | MA-L | 2020-04-25 |
| A4:1E:E1 | MA-L | 2022-01-19 |
| AC:37:28 | MA-L | 2020-09-12 |
| B4:26:5D | MA-L | 2019-09-10 |
| C4:48:FA | MA-L | 2021-09-04 |
| C8:9C:BB | MA-L | 2023-08-03 |
| D0:0E:D9 | MA-L | 2015-11-17 |
| D8:A3:12 | MA-L | 2026-07-03 |
| D8:B0:20 | MA-L | 2023-10-19 |
| E0:3D:A6 | MA-L | 2025-01-04 |
| E4:DA:DF | MA-L | 2021-12-21 |
| E8:D0:B9 | MA-L | 2019-06-12 |
| EC:A2:A0 | MA-L | 2023-04-03 |
| F0:68:65 | MA-L | 2019-04-29 |
| F4:9E:EF | MA-L | 2016-02-10 |
| F8:0C:58 | MA-L | 2021-05-11 |
| F8:44:E3 | MA-L | 2017-04-18 |
| F8:6C:E1 | MA-L | 2017-08-20 |
| FC:10:C6 | MA-L | 2016-09-08 |