30:43:D7:40:00:00 to 30:43:D7:4F:FF:FF
FIBERME COMMUNICATIONS LLC
Inspect this prefixRegistered address
1749 Old Meadow Rd.
McLean VA 22102
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 30:43:D7:4 /28
- Addresses in block
- 1,048,576
- Decimal range
- 53,067,932,237,824 to 53,067,933,286,399
- 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 30:43:D7:40:00:00 and 30:43:D7:4F: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.