74:25:84:C0:00:00 to 74:25:84:CF:FF:FF
HSPTEK JSC
Inspect this prefixRegistered address
98D Tue Tinh, Nguyen Du ward, Hai Ba Trung district, Hanoi city, Vietnam
HANOI CENTER ON 100000
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 74:25:84:C /28
- Addresses in block
- 1,048,576
- Decimal range
- 127,704,489,787,392 to 127,704,490,835,967
- Address type
- Unicast, universally administered
What this block covers
A 28 bit block. Sixteen of these fit inside one 24 bit prefix, so the first three octets are shared with other registrants.
Any MAC address between 74:25:84:C0:00:00 and 74:25:84:CF:FF:FF belongs to this assignment. The registrant chooses the remaining 20 bits, so the same prefix can appear on very different products from the same company.