Format        ; Parent Format ; Comment
XXXX XX XX XX ; varcost_4/3/3 ; "Alternate formatting for toll-free & premium-rate numbers"
XXXX XXXXXX   ; varcost_4/3/3 ; "Alternate formatting for toll-free & premium-rate numbers"
X XXX XXX XXX ; varcost_4/3/3 ; "Alternate formatting for toll-free & premium-rate numbers"
X XXXXXXXX    ; fixed_1/4/4