MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Second Rule LLC
MAC address prefix 00:12:3C is registered to Second Rule LLC, located at 4119 Walnut StreetPhiladelphia PA 19104US.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 02 September 2004, with the most recent update made on 17 November 2015.
OUI: 00:12:3C
Vendor name: Second Rule LLC
Address:
Assignment Type MA-L 4119 Walnut Street
Philadelphia PA 19104
US.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 02 September 2004
