8C:51:09:00:00:00 to 8C:51:09:0F:FF:FF
TianJin JointOptic Technology Co., LTD.
Inspect this prefixRegistered address
Floor 3, Building 6, Teda Service Outsourcing Industrial Park, 19 Xinhuan West Road, Binhai New Area,
Tianjin 300000
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 8C:51:09:0 /28
- Addresses in block
- 1,048,576
- Decimal range
- 154,279,671,234,560 to 154,279,672,283,135
- 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:51:09:00:00:00 and 8C:51:09:0F: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.