54:91:AF:7 Hong Telecom Equipment Service Limited
Every MAC address from 54:91:AF:70:00:00 to 54:91:AF:7F:FF:FF belongs to a block the IEEE assigned to Hong Telecom Equipment Service Limited. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 54:91:AF:7 belongs to
Written 54:91:AF:7, 54-91-AF-7 or 5491AF7, depending on the system. Look up a full address.
Prefix
54:91:AF:7/28
Organization
Hong Telecom Equipment Service Limited
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
54:91:AF:70:00:00
Last address
54:91:AF:7F:FF:FF
Address type
Globally unique, unicast
Registered address
A201, 2nd Floor, East Tower, Nanshan Digital Cultural Industry Base, No. 10128 Shennan Avenue, Nanshan District, Shenzhen Guangdong CN China
Parent block
Inside 54:91:AF
This MA-M block is carved from the 24-bit block 54:91:AF, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.