| Format ; Parent Format ; Comment | |
| X XXX XXX* ; fmt_1/4-9 ; "Alternative format for one-digit prefix mid-length numbers." | |
| XX XXX XXX* ; fmt_2/4-8 ; "Alternative format for two-digit prefix mid-length numbers." | |
| X XXXX XXX ; fmt_1/4-9 ; "Alternative format for one-digit prefix mid-length numbers." |