OUI Lookup
00203b
WISDM LTD.
Manufacturer Information
- OUI Prefix
- 00203b
- Manufacturer
- WISDM LTD.
- Address
- ST. JOHNS INNOVATION CENTRE GB ENGLAND
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00203B
The OUI prefix 00203B is assigned to WISDM LTD., based in ST. JOHNS INNOVATION CENTRE GB ENGLAND . 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 WISDM LTD..