OUI Lookup
c42c7b
VIETNAM POST AND TELECOMMUNICATION INDUSTRY TECHNOLOGY JOIN STOCK COMPANY
Manufacturer Information
- OUI Prefix
- c42c7b
- Manufacturer
- VIETNAM POST AND TELECOMMUNICATION INDUSTRY TECHNOLOGY JOIN STOCK COMPANY
- Address
- Hi-Tech Industrial Zone I, Hoa Lac Hi-Tech Park, Hoa Lac Commune Hanoi VN 100000
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 4
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix C42C7B
The OUI prefix C42C7B is assigned to VIETNAM POST AND TELECOMMUNICATION INDUSTRY TECHNOLOGY JOIN STOCK COMPANY, based in Hi-Tech Industrial Zone I, Hoa Lac Hi-Tech Park, Hoa Lac Commune Hanoi VN 100000 . 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 VIETNAM POST AND TELECOMMUNICATION INDUSTRY TECHNOLOGY JOIN STOCK COMPANY.