OUI Lookup
00257f
CallTechSolution Co.,Ltd
Manufacturer Information
- OUI Prefix
- 00257f
- Manufacturer
- CallTechSolution Co.,Ltd
- Address
- #123,Daewooprugio B/D,344-1, Seogyo-Dong,Mapo-gu Seoul KR 121-837
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00257F
The OUI prefix 00257F is assigned to CallTechSolution Co.,Ltd, based in #123,Daewooprugio B/D,344-1, Seogyo-Dong,Mapo-gu Seoul KR 121-837 . 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 CallTechSolution Co.,Ltd.