18:45:B3:80:00:00 to 18:45:B3:8F:FF:FF
ShenZhen Topband Co.,Ltd
Inspect this prefixRegistered address
Topband Industrial Park, Shiyan Town, Bao'anDistrict,Shenzhen
Shenzhen 518000
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 18:45:B3:8 /28
- Addresses in block
- 1,048,576
- Decimal range
- 26,687,643,320,320 to 26,687,644,368,895
- 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 18:45:B3:80:00:00 and 18:45:B3:8F: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.