MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address

 MAC

SEMAPHORE COMMUNICATIONS CORP.

OUI prefix: 00:C0:5A

Vendor name: SEMAPHORE COMMUNICATIONS CORP.

Address:

217 HUMBOLDT COURT
SUNNYVALE CA 94089-1300
US.

Assignment Type MA-L

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

Last updated: 17 November 2015

Initial registration: 09 November 2000

MAC Address Vendor Country US map