OUI Lookup
644bc3
Shanghai WOASiS Telecommunications Ltd., Co.
Manufacturer Information
- OUI Prefix
- 644bc3
- Manufacturer
- Shanghai WOASiS Telecommunications Ltd., Co.
- Address
- 15F, Software Building, Shanghai CN 200233
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 644BC3
The OUI prefix 644BC3 is assigned to Shanghai WOASiS Telecommunications Ltd., Co., based in 15F, Software Building, Shanghai CN 200233 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Shanghai WOASiS Telecommunications Ltd., Co..