58:20:8A:C Jiangsu Zhonganzhixin Communication Technology Co.
Every MAC address from 58:20:8A:C0:00:00 to 58:20:8A:CF:FF:FF belongs to a block the IEEE assigned to Jiangsu Zhonganzhixin Communication Technology Co.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 58:20:8A:C belongs to
Written 58:20:8A:C, 58-20-8A-C or 58208AC, depending on the system. Look up a full address.
Prefix
58:20:8A:C/28
Organization
Jiangsu Zhonganzhixin Communication Technology Co.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
58:20:8A:C0:00:00
Last address
58:20:8A:CF:FF:FF
Address type
Globally unique, unicast
Registered address
No. 8 Dongwang Road,SIP Suzhou Jiangsu CN 215123
Parent block
Inside 58:20:8A
This MA-M block is carved from the 24-bit block 58:20:8A, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.