| Flag | Code | Country | Time Difference (GMT) | Group | Comment | Internet Code |
 | 1212 | UNITED STATES of AMERICA | -5 to -11 | NATO, USA | This is a hypothetical code - List of all codes | us |
 | 1242 | BAHAMAS (Comonwealth of the) | -5 | BCW | | bs |
 | 1246 | BARBADOS | -4 | BCW | | bb |
 | 1264 | ANGUILLA | -4 | BRD, LEE | | ai |
 | 1268 | ANTIGUA AND BARBUDA | -4 | LEE, BCW | | ag |
| 1268 | Barbuda | -4 | LEE | ANTIGUA AND BARBUDA | ag |
 | 1284 | BRITISH VIRGIN ISLANDS | -4 | BRD | Also known as TORTOLA | vg |
| 1284 | VIRGIN ISLANDS (British) | -4 | | Also known as TORTOLA | vg |
 | 1340 | UNITED STATES VIRGIN ISLANDS | -4 | | | |
 | 1345 | CAYMAN ISLANDS | -5 | BRD | | ky |
 | 1441 | BERMUDA | -4 | BRD | | bm |
 | 1473 | GRENADA | -4 | WIN, BCW | includes Carriacou | gd |
| 1473 | Carriacou | -4 | WIN | GRENADA | gd |
 | 1613 | CANADA | -3.5 to -8 | NATO, BCW | This is a hypothetical code - List of all codes | ca |
 | 1649 | TURKS AND CAICOS ISLANDS | -5 | BRD | | tc |
 | 1664 | MONTSERRAT | -4 | BRD, LEE | | ms |
 | 1670 | Rota | 10 | CNMI | NORTHERN MARIANA ISLANDS (CNMI) | mp |
| 1670 | Saipan | 10 | CNMI | NORTHERN MARIANA ISLANDS (CNMI) | mp |
| 1670 | Tinian | 10 | CNMI | NORTHERN MARIANA ISLANDS (CNMI) | mp |
| 1670 | NORTHERN MARIANA ISLANDS (CNMI) | 10 | CNMI | | mp |
 | 1671 | GUAM | 10 | | was Mariana Islands | gu |
 | 1684 | AMERICAN SAMOA | -11 | ASM | From 2 October 2004. Also see 684 | as |
 | 1721 | SINT MAARTEN | -4 | | From May 2010. Was part of Netherlands Antilles. | |
 | 1758 | SAINT LUCIA | -4 | WIN, BCW | | lc |
 | 1767 | DOMINICA (Commonwealth of) | -4 | WIN, BCW | | dm |
 | 1784 | SAINT VINCENT AND THE GRENADINES | -4 | WIN, BCW | | vc |
 | 1787 | PUERTO RICO | -4 | PRI | Also see 1939 | pr |
 | 1808 | HAWAII | -10 | USA | Some telcoms treat Hawaii as an independant country - for billing purposes | us |
 | 1809 | DOMINICAN REPUBLIC | -4 | DOM | Also see 1829 and 1849 | do |
 | 1829 | DOMINICAN REPUBLIC | -4 | DOM | From 1 August 2005 - Also see 1809 and 1849 | do |
 | 1849 | DOMINICAN REPUBLIC | -4 | DOM | From July 2009.Also see 1809 and 1829. | do |
 | 1868 | TRINIDAD AND TOBAGO | -4 | BCW | | tt |
 | 1869 | St Christopher | -4 | LEE | Now named ST KITTS AND NEVIS | kn |
| 1869 | SAINT KITTS AND NEVIS | -4 | LEE, BCW | | kn |
| 1869 | Nevis | -4 | LEE | Now named ST KITTS AND NEVIS | kn |
 | 1876 | JAMAICA | -5 | BCW | | jm |
 | 1907 | ALASKA | -10 to -11 | USA | Some telcoms treat Alaska as an independant country - for billing purposes | us |
 | 1939 | PUERTO RICO | -4 | PRI | from 15 July 2001 - Also see 1787 | pr |