4C:91:7A:10:00:00 to 4C:91:7A:1F:FF:FF
Inster Tecnología y Comunicaciones SAU
Inspect this prefixRegistered address
Avda. Rita Levi Montalcini, 2 Parcela 5, Tecnogetafe - Getafe
Madrid 28906
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 4C:91:7A:1 /28
- Addresses in block
- 1,048,576
- Decimal range
- 84,187,701,837,824 to 84,187,702,886,399
- 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 4C:91:7A:10:00:00 and 4C:91:7A:1F: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.