Aggregators generating LFDIs for managed devices shall use the technology provider’s Private Enterprise Number (PEN) as the last 8 hex digits with leading zeros. This ensures the technology provider can manage global uniqueness within their device pool without concern of clashing with other aggregators. This is similar to the generation of the mRIDType object.
An example LFDI is as follows where [XXXXXXXX] is the PEN:
AA402E1AD2D673BAE72163FEFAA05BFC[XXXXXXXX]
If your organisation does not already have a PEN allocated, you may request one from IANA. The process is simple and free.