OUI Lookup
0021b4
APRO MEDIA CO., LTD
Manufacturer Information
- OUI Prefix
- 0021b4
- Manufacturer
- APRO MEDIA CO., LTD
- Address
- #13-5,Dodang-Dong,Wonmi-Gu, Bucheon-City Kyunggi-Do KR 420-801
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0021B4
The OUI prefix 0021B4 is assigned to APRO MEDIA CO., LTD, based in #13-5,Dodang-Dong,Wonmi-Gu, Bucheon-City Kyunggi-Do KR 420-801 . 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 APRO MEDIA CO., LTD.