30:3D:51:30:00:00 to 30:3D:51:3F:FF:FF
S & A Systems
Inspect this prefixRegistered address
992 Sids Rd.
Rockwall TX 75032
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 30:3D:51:3 /28
- Addresses in block
- 1,048,576
- Decimal range
- 53,039,913,238,528 to 53,039,914,287,103
- 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 30:3D:51:30:00:00 and 30:3D:51:3F: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.