1C:87:74:E0:00:00 to 1C:87:74:EF:FF:FF
Quest Integrity
Inspect this prefixRegistered address
19823 58TH PL S, STE 100
Kent WA 98032
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 1C:87:74:E /28
- Addresses in block
- 1,048,576
- Decimal range
- 31,368,106,999,808 to 31,368,108,048,383
- 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 1C:87:74:E0:00:00 and 1C:87:74:EF: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.