OUI Lookup
00603d
3CX
Manufacturer Information
- OUI Prefix
- 00603d
- Manufacturer
- 3CX
- Address
- 2085 HAMILTON AVE., -STE.#220 SAN JOSE CA US 95125
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00603D
The OUI prefix 00603D is assigned to 3CX, based in 2085 HAMILTON AVE., -STE.#220 SAN JOSE CA US 95125 . 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 3CX.