C4:7C:8D:30:00:00 to C4:7C:8D:3F:FF:FF
Watec Co., Ltd.
Inspect this prefixRegistered address
254-2 Nihonkoku, Daihoji
Tsuruoka-shi Yamagata 997-0017
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- C4:7C:8D:3 /28
- Addresses in block
- 1,048,576
- Decimal range
- 216,039,223,721,984 to 216,039,224,770,559
- 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 C4:7C:8D:30:00:00 and C4:7C:8D:3F: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.