| Code | Name | Region |
|---|---|---|
| USN9R | North Oaks | MN |
| US6TH | North Hero | VT |
| USNDC | North Highlands | CA |
| USNHH | North Hills | CA |
| USNHD | North Hollywood | CA |
| USNH4 | North Hoosick | NY |
| USN2R | North Houston | TX |
| USNHU | North Huntingdon | PA |
| USNJ2 | North Jackson | OH |
| US9JV | North Java | NY |
| USJVA | North Java | WY |
| USIVJ | North Judson | IN |
| USNKY | North Kansas City | MO |
| USNK6 | North Kingston Beach | RI |
| USNKT | North Kingstown | RI |
| USNKE | North Kingsville | OH |
| USNVS | North Las Vegas | NV |
| USRW4 | North Lauderdale | FL |
| USNLY | North Lawrence | NY |
| USNLB | North Lawrence | OH |
| USNLU | North Lewisburg | OH |
| USNDB | North Dartmouth | MA |
| USNDG | North Dighton | MA |
| USNAP | North East | MD |
| USNTE | North East | PA |
| USEN9 | North Eastham | MA |
| USNFH | North Falmouth | MA |
| USIFU | North Ferrisburgh | VT |
| US88C | North Fork | CA |
| USN8F | North Fort Myers | FL |
| USTFA | North Franklin | CT |
| USNFW | North Freedom | WI |
| USNGR | North Grafton | MA |
| USNBG | North Granby | CT |
| USZGN | North Grosvenor Dale | CT |
| USNH9 | North Haledon | NJ |
| USJNH | North Hampton | NH |
| USNHQ | North Hartland | VT |
| USNOH | North Haven | CT |
| US9NV | North Haven | ME |
| USNV8 | North Haven | NY |
| USNB5 | North Branch | TX |
| USNBC | North Branford | CT |
| USNBP | North Brookfield | MA |
| USNBS | North Brunswick | NJ |
| US2CW | North Caldwell | NJ |
| USN7C | North Canaan | CT |
| USNQN | North Canton | CT |
| USUXJ | North Canton | OH |
| USNTS | North Charleston | SC |