7C:8D:91 Shanghai Hongzhuo Information Technology co.,LTD
Every MAC address from 7C:8D:91:00:00:00 to 7C:8D:91:FF:FF:FF belongs to a block the IEEE assigned to Shanghai Hongzhuo Information Technology co.,LTD. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 7C:8D:91 belongs to
Written 7C:8D:91, 7C-8D-91 or 7C8D91, depending on the system. Look up a full address.
Prefix
7C:8D:91
Organization
Shanghai Hongzhuo Information Technology co.,LTD
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
7C:8D:91:00:00:00
Last address
7C:8D:91:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Room.161,Building 5,No.311 Jingao RD Pudong Shanghai CN 200136