OUI Lookup
38141b
Secure Letter Inc.
Manufacturer Information
- OUI Prefix
- 38141b
- Manufacturer
- Secure Letter Inc.
- Address
- 223, Yeoksam-ro Gangnam-gu Seoul KR 06224
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 38141B
The OUI prefix 38141B is assigned to Secure Letter Inc., based in 223, Yeoksam-ro Gangnam-gu Seoul KR 06224 . 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 Secure Letter Inc..