1C:73:28:00:00:00 to 1C:73:28:FF:FF:FF
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Inspect this prefixRegistered address
19-22, Rathbone Place
London W1T 1HY
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- 1C:73:28 /24
- Addresses in block
- 16,777,216
- Decimal range
- 31,280,917,905,408 to 31,280,934,682,623
- 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 1C:73:28:00:00:00 and 1C:73:28: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.