OUI Lookup
0020a3
Harmonic, Inc
Manufacturer Information
- OUI Prefix
- 0020a3
- Manufacturer
- Harmonic, Inc
- Address
- 4300 North First Street San Jose CA US 95134
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 4
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0020A3
The OUI prefix 0020A3 is assigned to Harmonic, Inc, based in 4300 North First Street San Jose CA US 95134 . 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 Harmonic, Inc.