18:2C:91:00:00:00 to 18:2C:91:FF:FF:FF
Concept Development, Inc.
Inspect this prefixRegistered address
1881 Langley Avenue
Irvine CA 92614-5623
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- 18:2C:91 /24
- Addresses in block
- 16,777,216
- Decimal range
- 26,579,690,323,968 to 26,579,707,101,183
- 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 18:2C:91:00:00:00 and 18:2C:91: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.