F4:20:55:50:00:00 to F4:20:55:5F:FF:FF
Proqualit Telecom LTDA
Inspect this prefixRegistered address
Avenida João XXIII - Bloco I
Paraisópolis Minas Gerais 37660000
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- F4:20:55:5 /28
- Addresses in block
- 1,048,576
- Decimal range
- 268,419,707,437,056 to 268,419,708,485,631
- 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 F4:20:55:50:00:00 and F4:20:55:5F: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.