74:A2:35:A0:00:00 to 74:A2:35:AF:FF:FF
CPSpeed co., ltd.
Inspect this prefixRegistered address
3505 stLuke’s Tower,8-1 Akashi-cho, Chuo-ku
tokyo 1040044
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 74:A2:35:A /28
- Addresses in block
- 1,048,576
- Decimal range
- 128,240,033,202,176 to 128,240,034,250,751
- 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 74:A2:35:A0:00:00 and 74:A2:35: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.