8C:55:70:E0:00:00 to 8C:55:70:EF:FF:FF
Johnson Health Tech. (Shanghai) Co.,Ltd.
Inspect this prefixRegistered address
No.1355, Xinhe Rd., JiaDing District, Shanghai city, China
Shanghai 201815
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 8C:55:70:E /28
- Addresses in block
- 1,048,576
- Decimal range
- 154,298,593,837,056 to 154,298,594,885,631
- 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 8C:55:70:E0:00:00 and 8C:55:70: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.