Find the vendor name of a device by entering an OUI or a MAC address
Hangzhou Hollysys Automation Co., Ltd
Hangzhou Hollysys Automation Co., Ltd , manages 2 unique MAC address prefixes. These prefixes are part of a massive allocation with a total block size of 17.8 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 13 May 2007, and the most recent update was made on 26 November 2024. These allocations support network identification and communication globally.
Unique prefixes: 2
Block Size: 17825790 (17.82 M)
First registration: 13 May 2007
Last updated: 26 November 2024
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 Prefix | Type | Registration Date |
|---|---|---|
| 00:1C:47 | MA-L | 2007-05-13 |
| 90:88:A9:3 | MA-M | 2024-11-26 |