OUI Lookup
001938
UMB Communications Co., Ltd.
Manufacturer Information
- OUI Prefix
- 001938
- Manufacturer
- UMB Communications Co., Ltd.
- Address
- 1010, 5, ACE Techno Tower, 197-22, Guro-dong, Guro-gu Seoul KR 151-766
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 001938
The OUI prefix 001938 is assigned to UMB Communications Co., Ltd., based in 1010, 5, ACE Techno Tower, 197-22, Guro-dong, Guro-gu Seoul KR 151-766 . 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 UMB Communications Co., Ltd..