ELD identifier
LM423X
FMCSA holds 5 listings under this identifier, and 5 of them are no longer registered.
Worth checking
Driving with a logging device that is no longer registered puts a driver out of service, and the carrier has to move to a registered device or to paper records. An identifier can be shared by several makers, so check the maker and model below against what is actually in the cab — one listing here being revoked does not by itself mean yours is.
Registered under LM423X
| Status | Device | Maker | Data transfer |
|---|---|---|---|
| Withdrawn by the maker January 27, 2023 | FOCUS ELD Model Android & GNX-6 Software 1.0.1905.190710 & up | Focus fleet and fuel management inc 800-670-7220 http://www.focusoptimization.com Sherbrooke, Quebec, J1H-1R7 | |
| Withdrawn by the maker January 27, 2023 | FOCUS ELD Model LM423X Software 1.0.1905.190710 & up | Focus fleet and fuel management inc 800-670-7220 http://www.focusoptimization.com Sherbrooke, Quebec, J1H-1R7 | |
| Withdrawn by the maker January 27, 2023 | FOCUS ELD Model IOS and CalAmp 3640 Software 1905.190710 & up | Focus fleet and fuel management inc 800-670-7220 http://www.focusoptimization.com Sherbrooke, Quebec, J1H-1R7 | |
| Withdrawn by the maker January 27, 2023 | FOCUS ELD Model Android & CalAmp 3640 Software 1.0.1905.190710 & up | Focus fleet and fuel management inc 800-670-7220 http://www.focusoptimization.com Sherbrooke, Quebec, J1H-1R7 | |
| Withdrawn by the maker January 27, 2023 | FOCUS ELD Model IOS & GNX-6 Software 1905.190710 & up | Focus fleet and fuel management inc 800-670-7220 http://www.focusoptimization.com Sherbrooke, Quebec, J1H-1R7 |
From FMCSA's register, as this site last read it on September 4, 2026. Search the whole register
What this is
FMCSA requires every electronic logging device to be registered by its maker, and it publishes the list — along with the devices whose registration has been revoked, either by the agency or by the maker withdrawing it. The identifier above is the short code the device shows on its own compliance screen. This page is a copy of what that public list says about it, kept searchable because the list itself is free to read and almost impossible to notice.