6C:20:56:00:00:00 to 6C:20:56:FF:FF:FF
Cisco Systems, Inc
Registered address
170 West Tasman Drive
San Jose CA 95134
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- 6C:20:56 /24
- Addresses in block
- 16,777,216
- Decimal range
- 118,886,137,593,856 to 118,886,154,371,071
- Address type
- Unicast, universally administered
What this block covers
The classic 24 bit OUI. The registrant owns the first three octets and can assign every one of the remaining 16.7 million addresses.
Any MAC address between 6C:20:56:00:00:00 and 6C:20:56:FF:FF:FF belongs to this assignment. The registrant chooses the remaining 24 bits, so the same prefix can appear on very different products from the same company.