contact

1 contact type: International Calling Code.

1 type

The contact type

1 of 1 contact type accepts it.

Type	Reads it as
International Calling Code `calling_code`	+1

CLI · DuckDB

$ printf '%s\n' '+1' '+44' > column.txt
$ finetype infer -f column.txt --mode column

SELECT ft_profile(v) FROM (VALUES ('+1'), ('+44')) t(v);

After +44, one type remains: calling_code.