00:12:19:00:00:00 to 00:12:19:FF:FF:FF
General Datacomm LLC
Registered address
353 Christian Street, Suite 4
Oxford CT 06478
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- 00:12:19 /24
- Addresses in block
- 16,777,216
- Decimal range
- 77,728,841,728 to 77,745,618,943
- 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 00:12:19:00:00:00 and 00:12:19: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.
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