MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
ADVANCED TELECOMMUNICATIONS MODULES, LTD.
Range: 00:20:2B:00:00:00 - 00:20:2B:FF:FF:FF
Block Size: 16777215 (16.77 M)
Universally administered addresses (UAA) : the address is uniquely assigned by its manufacturer.
Type of transmission: Unicast
Advanced Telecommunications Modules, Ltd.