B4:4D:43:30:00:00 to B4:4D:43:3F:FF:FF
ETSME Technologies C0., Ltd.
Inspect this prefixRegistered address
17/F,Building A,No1190,BinAn Road,Binjiang District
Hangzhou Zhejiang 310056
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- B4:4D:43:3 /28
- Addresses in block
- 1,048,576
- Decimal range
- 198,243,932,700,672 to 198,243,933,749,247
- 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 B4:4D:43:30:00:00 and B4:4D:43:3F: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.