Id            ; National         ; Carrier          ; International
fixed_3/7     ; "(XXX) XXXXXXX"  ; "#@ XXX XXXXXXX" ; "XXX XXXXXXX"
fmt_4/4       ; "XXXX XXXX"      ;                  ; "XXXX XXXX"
mobile_3/7    ; "XXX XXXXXXX"    ; "#@ XXX XXXXXXX" ; "XXX XXXXXXX"
varcost_1/3/7 ; "#X-XXX-XXXXXXX" ;                  ; "X XXX XXXXXXX"