Checking British Mains Plug License Number

BSI License Number

BSI has a facility for checking the license number of a BS 1363-1 UK mains plug.

picture of form on bsi website

Hopefully the number you have entered is genuine and you are presented with some search results:

list of text results from a bsi search

You can then click on the line you are interested in and check the details of the plug against the sample you have.

list of information for lj01 plug from previous search


ASTA License Number

ASTA numbers are assigned by Intertek and can be checked using their online tool.

screenshot of asta website

Search results give the brand and manufacturer. The hard part now is tying this up with the sample in front of you!