| Country | Code | % Correct |
|---|---|---|
| Albania | (+355) | 100%
|
| Andorra | (+376) | 100%
|
| Belarus | (+375) | 100%
|
| Belgium | (+32) | 100%
|
| Bosnia and Herzegovina | (+387) | 100%
|
| Bulgaria | (+359 | 100%
|
| Croatia | (+385) | 100%
|
| Cyprus | (+357) | 100%
|
| Estonia | (+372) | 100%
|
| Finland | (+358) | 100%
|
| France | (+33) | 100%
|
| Greece | (+30) | 100%
|
| Hungary | (+36) | 100%
|
| Iceland | (+354) | 100%
|
| Ireland | (+353) | 100%
|
| Italy | (+39) | 100%
|
| Kosovo | (+383) | 100%
|
| Latvia | (+371) | 100%
|
| Lithuania | (+370) | 100%
|
| Luxembourg | (+352) | 100%
|
| Malta | (+356) | 100%
|
| Moldova | (+373) | 100%
|
| Monaco | (+377) | 100%
|
| Montenegro | (+382) | 100%
|
| Netherlands | (+31) | 100%
|
| North Macedonia | (+389) | 100%
|
| Portugal | (+351) | 100%
|
| San Marino | (+378) | 100%
|
| Serbia | (+381) | 100%
|
| Slovenia | (+386) | 100%
|
| Spain | (+34) | 100%
|
| Ukraine | (+380) | 100%
|
| Vatican City | (+379), (+39) | 100%
|
| Armenia | (+374) | 75%
|