78:72:64:E0:00:00 to 78:72:64:EF:FF:FF
Heltec Automation
Inspect this prefixRegistered address
64 Chenghong Rd., Longtan Industrial Park, Chenghua District
Chengdu Sichuan 610000
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 78:72:64:E /28
- Addresses in block
- 1,048,576
- Decimal range
- 132,432,714,006,528 to 132,432,715,055,103
- 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 78:72:64:E0:00:00 and 78:72:64: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.