F4:90:CB:A0:00:00 to F4:90:CB:AF:FF:FF
Fend Incorporated
Inspect this prefixRegistered address
4600 Fairfax Dr Ste 410
Arlington VA 22203-1553
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- F4:90:CB:A /28
- Addresses in block
- 1,048,576
- Decimal range
- 268,902,728,728,576 to 268,902,729,777,151
- 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 F4:90:CB:A0:00:00 and F4:90:CB: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.