| Saint Barthelemy | +590 |
| Saint Helena | +290 |
| Saint Kitts and Nevis | +1869 |
| Saint Lucia | +1758 |
| Saint Martin | +590 |
| Saint Pierre and Miquelon | +508 |
| Saint Vincent and the Grenadines | +1784 |
| Samoa | +685 |
| San Marino | +295 |
| San Marino | +378 |
| Sao Tome and Principe | +239 |
| Saudi Arabia | +966 |
| Senegal | +221 |
| Serbia | +381 |
| Serbia and Montenegro | +381 |
| Seychelles | +248 |
| Sierra Leone | +232 |
| Singapore | +65 |
| Sint Maarten | +599 |
| Slovakia | +421 |
| Slovenia | +386 |
| Solomon Islands | +677 |
| Somalia | +252 |
| South Africa | +27 |
| South Korea | +82 |
| South Sudan | +211 |
| Spain | +34 |
| Spain | +34 |
| Sri Lanka | +94 |
| Sudan | +249 |
| Suriname | +597 |
| Svalbard and Jan Mayen | +47 |
| Sweden | +46 |
| Switzerland | +41 |
| Syria | +963 |