OUI Lookup
7c3e9d
PATECH
Manufacturer Information
- OUI Prefix
- 7c3e9d
- Manufacturer
- PATECH
- Address
- #23-17. WonhyoRo-2Ga YongSan-Gu Seoul KR 140112
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 7C3E9D
The OUI prefix 7C3E9D is assigned to PATECH, based in #23-17. WonhyoRo-2Ga YongSan-Gu Seoul KR 140112 . 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 PATECH.