OUI Lookup
005021
EIS INTERNATIONAL, INC.
Manufacturer Information
- OUI Prefix
- 005021
- Manufacturer
- EIS INTERNATIONAL, INC.
- Address
- 1351 WASHINGTON BLVD. STAMFORD CT US 06902
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 005021
The OUI prefix 005021 is assigned to EIS INTERNATIONAL, INC., based in 1351 WASHINGTON BLVD. STAMFORD CT US 06902 . 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 EIS INTERNATIONAL, INC..