In Singapore, SBS Transit commuters who are also SingTel Mobile subscribers can get to check their real-time of bus arrival via SMS. This service is called the iris (Intelligent Route Information System) NextBus on SMS. To check, commuters just have to key in [Bus stop number] space [Bus service number] and send it via text message to 74744 and you will get a SMS return telling you when you bus will arrive.

Mr Gan Juay Kiat, Chief Operating Officer of SBS Transit said:
“With the iris NextBus SMS service, our customers will now know when their bus will arrive in real time. Uncertainty will be a thing of the past. Commuters need only key in 74744 and they will be able to find out what time the next bus is due to arrive. This way, they can better plan their journeys and better utilize their time.”