| Country | Code | % Correct |
|---|---|---|
| Antigua and Barbuda | (+1) (268) | 100%
|
| Bahamas | (+1) (242) | 100%
|
| Barbados | (+1) (246) | 100%
|
| Canada | (+1) | 100%
|
| Dominica | (+1) (767) | 100%
|
| Dominican Republic | (+1) (809), (+1) (829), (+1) (849) | 100%
|
| Grenada | (+1) (473) | 100%
|
| Saint Kitts and Nevis | (+1) (869) | 100%
|
| Saint Lucia | (+1) (758) | 100%
|
| Saint Vincent and the Grenadines | (+1) (784) | 100%
|
| Trinidad and Tobago | (+1) (868) | 100%
|
| United States | (+1) | 100%
|
| Jamaica | (+1) (658), (+1) (876) | 89%
|