MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address


Second Rule LLC

OUI: 00:12:3C

Vendor name: Second Rule LLC


4119 Walnut Street
Philadelphia PA 19104

Assignment Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Last updated: 17 November 2015

Initial registration: 02 September 2004

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