30:EF:D1 Alstom Strongwish (Shenzhen) Co., Ltd.
Every MAC address from 30:EF:D1:00:00:00 to 30:EF:D1:FF:FF:FF belongs to a block the IEEE assigned to Alstom Strongwish (Shenzhen) Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 30:EF:D1 belongs to
Written 30:EF:D1, 30-EF-D1 or 30EFD1, depending on the system. Look up a full address.
Prefix
30:EF:D1
Organization
Alstom Strongwish (Shenzhen) Co., Ltd.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
30:EF:D1:00:00:00
Last address
30:EF:D1:FF:FF:FF
Address type
Globally unique, unicast
Registered address
5F,Building No.6, Keji Middle 2 Road High-Tech Industrial Park, Shen Zhen Guangdong CN 518057