78:5E:E8:40:00:00 to 78:5E:E8:4F:FF:FF
beijing Areospace Hongda optoelectronics technology co.,ltd
Inspect this prefixRegistered address
Room 422, No.4, North Row, No.28 South Yard
Beijing Dongbei Wang Village, Dongbei Wang Township, Haidian District 065599
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 78:5E:E8:4 /28
- Addresses in block
- 1,048,576
- Decimal range
- 132,349,018,767,360 to 132,349,019,815,935
- 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 78:5E:E8:40:00:00 and 78:5E:E8:4F: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.