Nějak takhle:
Android java:

String numbers[] = {"123456","654321","321654"};

for (Iterator<String> i = numbers.iterator(); i.hasNext();) {
String number = i.next();
sendSMS(number, "Hi You got a message!");
}

private void sendSMS(String phoneNumber, String message) {
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(phoneNumber, null, message, null, null);
}