| Country | Operator |
| Albania | Vodafone Albania |
| Austria | Hutchison |
| Austria | Mobilkom Austria |
| Belarus | Velcom Belarus |
| Belgium | Orange |
| Belgium | Proximus Belgium (Belgacom) |
| Bosnia and Herzegovina | BH Telecom |
| Bulgaria | Mobiltel Bulgaria |
| Bulgaria | Telenor |
| Croatia | T-Mobile |
| Croatia | VIP Net Croatia |
| Cyprus | MTN Cyprus |
| Czech Republic | Vodafone Czech Republic |
| Czech Republic | Telefonica - O2 |
| Czech Republic | T-Mobile |
| Denmark | Telenor Denmark |
| Denmark | HI3G ACCESS |
| Denmark | TDC Denmark |
| Estonia | Tele2 |
| Estonia | Elisa Estonia |
| Finland | DNA - Telenor |
| Finland | Elisa Finland |
| Finland | Elisa Finland |
| France | Orange |
| France | SFR France |
| France | Bouygues |
| France | Free Mobile France |
| Georgia | Beeline (Mobitel) Georgia |
| Germany | T-Mobile |
| Germany | Vodafone Germany |
| Greece | COSMOTE (T-Mobile) |
| Greece | Vodafone Greece |
| Hungary | Telenor |
| Hungary | T-Mobile |
| Hungary | Vodafone Hungary |
| Iceland | Vodafone Iceland |
| Ireland | 3 Hutchison Ireland |
| Ireland | Vodafone Ireland |
| Ireland | Three - Hutchison |
| Italy | Iliad |
| Italy | H3G Italy |
| Italy | Vodafone Italy |
| Italy | Wind Italy |
| Jersey, Isle Of Man & Guernsey | Jersey Telecom (JT) |
| Latvia | Tele2 Latvia |
| Latvia | Bite Latvia |
| Liechtenstein | Mobilkom liechtenstein |
| Lithuania | Bite/Tele2 Lithuania |
| Luxembourg | Post Luxembourg |
| Luxembourg | Proximus Luxembourg (Tango) |
| Luxembourg | Orange |
| Macedonia | A1 - VIP Macedonia |
| Malta | Vodafone Malta |
| Netherlands | Vodafone Netherlands |
| Netherlands | T-Mobile |
| Netherlands | KPN Netherlands |
| Norway | Telenor |
| Poland | T-Mobile |
| Poland | Orange Poland |
| Poland | Play P4 - Project4 |
| Portugal | Vodafone Portugal |
| Portugal | MEO Portugal |
| Romania | Vodafone Romania |
| Russia | MTS Russia |
| Russia | Beeline |
| Russia | Megafone Russia |
| Serbia | VIP Mobile Serbia |
| Serbia | Telenor |
| Serbia | Telekom |
| Slovakia | Slovak Telekom |
| Slovenia | A1 |
| Spain | Vodafone Spain |
| Spain | Telefonica |
| Sweden | Telenor Sweden |
| Sweden | HI3G Hutchison |
| Sweden | Tele2 Sweden |
| Sweden | Tele2 Sweden |
| Switzerland | Swisscom Switzerland |
| Switzerland | Sunrise Switzerland |
| Switzerland | Salt Mobile Switzerland (Orange) |
| Ukraine | Kyivstar Ukraine |
| United Kingdom | Telefonica - O2 |
| United Kingdom | Hutchison - H3G |
| United Kingdom | EE UK |
| United Kingdom | EE UK |
| United Kingdom | Vodafone UK
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