04:58:5D:5 Sercomm Japan Corporation
Every MAC address from 04:58:5D:50:00:00 to 04:58:5D:5F:FF:FF belongs to a block the IEEE assigned to Sercomm Japan Corporation. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 04:58:5D:5 belongs to
Written 04:58:5D:5, 04-58-5D-5 or 04585D5, depending on the system. Look up a full address.
Prefix
04:58:5D:5/28
Organization
Sercomm Japan Corporation
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
04:58:5D:50:00:00
Last address
04:58:5D:5F:FF:FF
Address type
Globally unique, unicast
Registered address
8F, 3-1, YuanQu St., NanKang, Taipei 115, Taiwan Taipei TW 115
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 Sercomm Japan Corporation
3 more blocks registered under the same name.