90:F4:21:A0:00:00 to 90:F4:21:AF: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
- 90:F4:21:A /28
- Addresses in block
- 1,048,576
- Decimal range
- 159,378,210,553,856 to 159,378,211,602,431
- 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 90:F4:21:A0:00:00 and 90:F4:21:AF: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.