| Country |
GSM Operator |
| Australia |
Telstra, C&W Optus, Vodafone |
| Austria |
Mobilkom, Telering , Connect
One, T-Mobile |
| Bahrain |
Batelco, MTC Vodafone |
| Bangladesh |
GrameenPhone |
| Belarus |
MTS |
| Bulgaria |
Cosmo
Bulgaria Mobile EAD (GloBul), MobiTel
AD |
| Belgium |
KPN
Orange , Belgacom |
| China |
CMC*, China Unicom |
| Cyprus |
CYTA |
| Czech Republic |
Eurotel, T-Mobile |
| Croatia |
VIPNet |
| Denmark |
Telia, SONOFON |
| Egypt |
Vodafone
Egypt |
| Estonia |
EMT |
| Finland |
Sonera |
| France |
Bouygues
Telecom, France
Telecom Itineris, SFR |
| Germany |
Vodafone
D2 , VIAG, DeTe Mobil(T Mobil), E-plus |
| Georgia |
Geocell
(Georgia) |
Greece
|
Vodafone |
| Hong Kong |
CSL, Hutchinson, New
World PCS, Sunday ,
Peoples
Telephony Company Limited (PEOPLES) Hong Kong, H3G |
| Hungary |
Vodafone, T-Mobile , Pannon
GSM |
| India |
BPL
Mobile Kerala State (covering Trivenduram) |
| |
BPL
Mobile Maharastra State |
| |
BPL
Mobile Tamil Nadu State |
| |
Hutchinson
Max(Orange) Chennai (Madras) |
| |
IDEA
Cellular Gujarat |
| |
SkyCell Chennai (Madras) |
| |
BPL
Mobile Mumbai (Bombay) |
| |
Bharti
Mobitel (AirTel) Calcutta |
| |
Sterling
Cellular - Essar Cellphone New Delhi |
| |
Spice
Punjab |
| |
IDEA
Cellular Delhi |
| |
|
| |
Hexacom
( Oasis Cellular ) |
| Indonesia |
Telkomsel |
| Italy |
Omnitel, Telecom Italia Mobile, Blu, WIND*, H3G* |
| Ireland |
Vodafone |
| Israel |
Cellcom
Isarel Ltd, Partner Communications
Ltd (Orange) |
| Japan |
J-Phone |
| Kazkhstan |
K’Cell |
| Kuwait |
MTC, Wataniya |
| Latvia |
Latvijas
Mobilais Telefonus SIA |
| Liechtenstein |
Mobilkom |
| Luxembourg |
LUX
GSM |
| Lithuania |
Omnitel, Bite GSM |
| Macau |
CTM
- Macau |
| Macedonia |
Mobimak |
| Malaysia |
Maxis, DiGi Telecom |
| Mauritus |
Emtel, Cellplus |
| Morocco |
IAM |
| Netherlands |
KPN, LiberTel, T-Mobile |
| Norway |
Netcom, Telenor Mobile |
| Pakistan |
Mobilink |
| Palestine |
Palestine
Cellular Communications, Ltd. |
| Philippines |
SMART
Communications Inc.**, Globe
Telecom |
| Poland |
Polkomtel
Poland, Era, PTK
Centertel |
| Portugal |
Telecel, TMN , OPTIMUS |
| Qatar |
Qatar
Telecom (Q-tel) |
| Romania |
MobiFon |
| Russia |
MTS, NWGSM *,NCC , Kb Impuls, ERMAK RMS, Uraltel, JSC
Extel |
| Saudi Arabia |
STC |
| Serbia & Montenegro |
MONET |
| Singapore |
Singtel, MobileOne, StarHub |
| Slovenia |
Mobitel |
| Slovak Republic |
Orange
Slovensko a.s.,Eurotel Bratislava
a.s |
| South Africa |
MTN, CellC |
| South Korea |
KTF, Korea Telecom |
| Sri Lanka |
Dialog, Celltel, Mobitel |
| Spain |
Airtel
Vodafone |
| Sweden |
Europilitan , Telia |
| Switzerland |
Swisscom, DIAX, Orange |
| Seychelles |
C&W
Seychelles , AirTel |
| Taiwan |
FarEasTone, Chunghwa Telecom LDM |
| Thailand |
AIS, Total Access Communication
(TAC) , Orange |
| Turkey |
Turkcell |
| UAE |
Etisalat |
| USA |
AT&T
Wireless, T-Mobile |
| UK |
BT
Cellnet, Vodafone, Orange , One2One, Cable & Wireless
Guernsey ,T-Mobile |
| Ukraine |
Kyivstar, UMC |
* Inbound roaming only
**Outbound roaming only |
|