Tianyi Telecom Terminals Company Limited

Tianyi Telecom Terminals Company Limited holds 9 OUI prefixes in the IEEE registry. Each prefix is the first three octets of a MAC address and covers a block of 16,777,216 addresses, so devices built by Tianyi Telecom Terminals Company Limited draw from a pool of about 150,994,944 possible MAC addresses in total.

Registered address: 12-19 floors inside 101, Floor 4-33, Building 1, Yard 1, Fenghuang Zui Street, Fengtai District, Beijing Beijing CN 100073

All 9 prefixes

• 38:92:0138:92:01:00:00:00 – 38:92:01:FF:FF:FF
• 54:08:D354:08:D3:00:00:00 – 54:08:D3:FF:FF:FF
• 64:A4:0E64:A4:0E:00:00:00 – 64:A4:0E:FF:FF:FF
• 70:37:8E70:37:8E:00:00:00 – 70:37:8E:FF:FF:FF
• 8C:BE:6F8C:BE:6F:00:00:00 – 8C:BE:6F:FF:FF:FF
• 98:1E:8998:1E:89:00:00:00 – 98:1E:89:FF:FF:FF
• AC:50:EEAC:50:EE:00:00:00 – AC:50:EE:FF:FF:FF
• D0:5B:CBD0:5B:CB:00:00:00 – D0:5B:CB:FF:FF:FF
• F0:01:6EF0:01:6E:00:00:00 – F0:01:6E:FF:FF:FF

Have a full MAC address? Look it up to see which of these prefixes it belongs to — or browse the full manufacturer directory.