A4:DA:22:70:00:00 to A4:DA:22:7F:FF:FF
Hydro Electronic Devices, Inc.
Inspect this prefixRegistered address
2120 Constitution Ave
Hartford WI 53027
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- A4:DA:22:7 /28
- Addresses in block
- 1,048,576
- Decimal range
- 181,256,787,591,168 to 181,256,788,639,743
- 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 A4:DA:22:70:00:00 and A4:DA:22:7F: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.