Biura należące do GSM
| Argentina |
| Australia |
| Austria |
| Belgium |
| Brazil |
| Bulgaria |
| Canada |
| Chile |
| China Beijing |
| China Guangzhou |
| China Shanghai |
| Colombia |
| Costa Rica |
| Czech Republic |
| Denmark |
| Dominican Republic |
| Ecuador |
| Estonia |
| Finland |
| France |
| Germany |
| Greece |
| GreenLand |
| Hong Kong |
| India |
| Indonesia |
| Ireland |
| Israel |
| Italy |
| Japan |
| Kenya |
| Latvia |
| Lithuania |
| Malaysia |
| Mexico |
| Netherlands |
| New Zealand |
| Norway |
| Pakistan |
| Panama |
| Paraguay |
| Peru |
| Philippines |
| Poland |
| Portugal |
| Republic of Korea |
| Russia |
| Singapore |
| Slovakia |
| South Africa |
| South Korea |
| Spain |
| Sri Lanka |
| Sweden |
| Switzerland |
| Taiwan |
| Thailand |
| Turkey |
| United Arab Emirates |
| United Kingdom |
| Uruguay |
| USA |
| Venezuela |
| Vietnam |
