OUI Lookup
000199
HeiSei Electronics
Manufacturer Information
- OUI Prefix
- 000199
- Manufacturer
- HeiSei Electronics
- Address
- 5/7 Alley 8, Lane 45 TW TAIWAN
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 000199
The OUI prefix 000199 is assigned to HeiSei Electronics, based in 5/7 Alley 8, Lane 45 TW TAIWAN . 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 HeiSei Electronics.