04:EC:A9:30:00:00 to 04:EC:A9:3F:FF:FF
Hunan Zetian Zhihang Electronic Technology Co., Ltd.
Inspect this prefixRegistered address
No.699 Qingshan Road,Changsha High-Tech Development Zone
Changsha Hunan 410017
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 04:EC:A9:3 /28
- Addresses in block
- 1,048,576
- Decimal range
- 5,414,497,288,192 to 5,414,498,336,767
- 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 04:EC:A9:30:00:00 and 04:EC:A9:3F: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.