| País | Estados Unidos de América |
| ITU/UIT | USA |
| Fecha entrada | 1908-07-01 |
| Prefijos | |
| AAA-AAZ | |
| ABA-ABZ | |
| ACA-ACZ | |
| ADA-ADZ | |
| AEA-AEZ | |
| AFA-AFZ | |
| AGA-AGZ | |
| AHA-AHZ | |
| AIA-AIZ | |
| AJA-AJZ | |
| AKA-AKZ | |
| ALA-ALZ | |
| KAA-KAZ | |
| KBA-KBZ | |
| KCA-KCZ | |
| KDA-KDZ | |
| KEA-KEZ | |
| KFA-KFZ | |
| KGA-KGZ | |
| KHA-KHZ | |
| KIA-KIZ | |
| KJA-KJZ | |
| KKA-KKZ | |
| KLA-KLZ | |
| KMA-KMZ | |
| KNA-KNZ | |
| KOA-KOZ | |
| KPA-KPZ | |
| KQA-KQZ | |
| KRA-KRZ | |
| KSA-KSZ | |
| KTA-KTZ | |
| KUA-KUZ | |
| KVA-KVZ | |
| KWA-KWZ | |
| KXA-KXZ | |
| KYA-KYZ | |
| KZA-KZZ | |
| NAA-NAZ | |
| NBA-NBZ | |
| NCA-NCZ | |
| NDA-NDZ | |
| NEA-NEZ | |
| NFA-NFZ | |
| NGA-NGZ | |
| NHA-NHZ | |
| NIA-NIZ | |
| NJA-NJZ | |
| NKA-NKZ | |
| NLA-NLZ | |
| NMA-NMZ | |
| NNA-NNZ | |
| NOA-NOZ | |
| NPA-NPZ | |
| NQA-NQZ | |
| NRA-NRZ | |
| NSA-NSZ | |
| NTA-NTZ | |
| NUA-NUZ | |
| NVA-NVZ | |
| NWA-NWZ | |
| NXA-NXZ | |
| NYA-NYZ | |
| NZA-NZZ | |
| WAA-WAZ | |
| WBA-WBZ | |
| WCA-WCZ | |
| WDA-WDZ | |
| WEA-WEZ | |
| WFA-WFZ | |
| WGA-WGZ | |
| WHA-WHZ | |
| WIA-WIZ | |
| WJA-WJZ | |
| WKA-WKZ | |
| WLA-WLZ | |
| WMA-WMZ | |
| WNA-WNZ | |
| WOA-WOZ | |
| WPA-WPZ | |
| WQA-WQZ | |
| WRA-WRZ | |
| WSA-WSZ | |
| WTA-WTZ | |
| WUA-WUZ | |
| WVA-WVZ | |
| WWA-WWZ | |
| WXA-WXZ | |
| WYA-WYZ | |
| WZA-WZZ |
