Problem with Count() in the Laravel

Question

I need to show the number of records belonging to a registered mobile number.

in the log table have the columns NUMBER and MESSAGES need to show the user the amount of messages that the registered numbers have.

By a @foreach I show on the screen all the records of the LOGS table that are: NUMBER, REGISTRATION DATE AND MESSAGES

but the COLUMN MESSAGES I need to be summed all the lines that belong to the NUMBER X and printed on the screen the total.

I registered to test each number 2 times, so should show on the screen that all numbers have 2 messages.

but is returning me the number 7 which is the amount of records in TABLE LOGS.

I tried in many ways, but without success.

I currently have the code

$numero = '{{ $logs->numero }}';
                
                $teste = DB::table("logs")->select("mensagens")->where('numero', '<=', 

$numero)->count();