| Gabun | +241 |
| Gambia | +220 |
| Georgien | +995 |
| Ghana | +233 |
| Gibraltar | +350 |
| Grenada | +1473 |
| Griechenland | +30 |
| Großbritannien (England, Schottland, Wales & Nordirland) | +44 |
| Grönland | +299 |
| Guadeloupe | +590 |
| Guam | +1671 |
| Guam | +671 |
| Guatemala | +502 |
| Guernsey | +441481 |
| Guinea | +224 |
| Guinea-Bissau | +245 |
| Guyana | +592 |