F8:1D:78:90:00:00 to F8:1D:78:9F:FF:FF
Ophrys Systèmes
Inspect this prefixRegistered address
6 rue Valérien Perrin
Seyssinet 38170
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- F8:1D:78:9 /28
- Addresses in block
- 1,048,576
- Decimal range
- 272,805,460,443,136 to 272,805,461,491,711
- 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 F8:1D:78:90:00:00 and F8:1D:78:9F: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.