| 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 |