M1 Limited is the leading and fast growing mobile service provider in Singapore. It started its business in August 1994 with its head office in Singapore. M1 Limited is originally known as MobileOne. M1 Limited is Singapore's second cellular telephone services company after SingTel. Teo Soon Hoe is the chairman of the company. It provides various mobile and internet services regarding GPRS, SMS, WAP, 3G, 3.5G, MBPs, MMS. According to 2012 records, it had its revenue around SG$1,076.8 million. It is the third top mobile communication providing company around Singapore. In Singapore, it was the first driver to start MMS. The company serves approximately 1.7 million customers. It is one of the busiest telecommunication companies in Singapore. The postal and official address, email address and phone number (helpline) of M1 Singapore service center is given above. The helpline of M1 Singapore service center may or may not be toll free.