04:58:5D:7 HKC Security Ltd.
Every MAC address from 04:58:5D:70:00:00 to 04:58:5D:7F:FF:FF belongs to a block the IEEE assigned to HKC Security Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 04:58:5D:7 belongs to
Written 04:58:5D:7, 04-58-5D-7 or 04585D7, depending on the system. Look up a full address.
Prefix
04:58:5D:7/28
Organization
HKC Security Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
04:58:5D:70:00:00
Last address
04:58:5D:7F:FF:FF
Address type
Globally unique, unicast
Registered address
Parkway Business Centre Ballymount Dublin IE D24 WY49
Parent block
Inside 04:58:5D
This MA-M block is carved from the 24-bit block 04:58:5D, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to HKC Security Ltd.
3 more blocks registered under the same name.