Como recuperar informações da operadora?

CTTelephonyNetworkInfo* telephonyNetworkInfo = [[CTTelephonyNetworkInfo alloc] init];

CTCarrier* carrierObject = [telephonyNetworkInfo subscriberCellularProvider];

string = [[NSString alloc] initWithFormat:@"Allow VoIP: %dnCarrier Name: %@nISO Country Code: %@nMobile Country Code: %@nMobile Network Code: %@", carrierObject.allowsVOIP, carrierObject.carrierName, carrierObject.isoCountryCode, carrierObject.mobileCountryCode, carrierObject.mobileNetworkCode];

NSLog(@"%Carrier information: n%@", string);

(Fontes originais: http://www.jesuisdeveloppeuriphone.com/2012/08/24/coretelephony-how-to-retrieve-carrier-information/ )