D4:7C:44:20:00:00 to D4:7C:44:2F:FF:FF
YunDing Network Technology (Beijing) Co., Ltd
Inspect this prefixRegistered address
A521,Floor 5, Tencent Space Building No.388, Hui long guan East St.
Beijing 100000
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- D4:7C:44:2 /28
- Addresses in block
- 1,048,576
- Decimal range
- 233,630,183,981,056 to 233,630,185,029,631
- 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 D4:7C:44:20:00:00 and D4:7C:44:2F: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.