| Format ; Parent Format ; Comment | |
| XXX XXX XXX ; porto_lisbon_2/3/4 ; "Lisbon/Porto numbers are usually formatted with the 21 or 22 separated - but sometimes they are formatted as 21X or 22X instead." | |
| XX XXX XX XX ; porto_lisbon_2/3/4 ; "Lisbon/Porto numbers." | |
| 9X XXX XX XX ; all_3/3/3 ; "Commonly used mobile formatting pattern." | |
| 9X XXX XXXX ; all_3/3/3 ; "Commonly used mobile formatting pattern." |