The first three digits tell you which mobile phone service provider you are using.

前三位数字表示您使用的是哪家移动电话服务供应商。

youdao

At each college, the students who choose to get an iPhone must pay for mobile phone service.

在每一所大学，选择购买 iPhone 的学生必须支付手机服务费。

youdao

Mobile phone service and power supplies were also restored on Saturday.

周六，移动电话服务和电力供应也已经恢复。

youdao

Hours ahead of Saturday's offensive, Pakistani authorities imposed a curfew and turned off mobile phone service in some areas.

VOA: standard.2009.10.17

The Saudi government told the country's three mobile phone operators to stop BlackBerry service for businesses and individuals this Friday.

VOA: special.2010.08.06

One is a new,phone-based service for expectant mothers from Voxiva, a firm which develops interactive mobile health services.

VOA: standard.2010.02.24

Since February 2012, over 250, 000 Canadians have signed up for Fongo's free mobile phone service.

ENGADGET: Fongo makes a very public bid for control of Wind Mobile

My wife has for years used Virgin Mobile USA as her mobile phone service provider.

FORBES: Hey Sprint, Where's Your Customer Service?

Other advertisers who will be included in upcoming Kinect titles include mobile phone service providers T-Mobile and Sprint.

FORBES: Advertising Week 2010: Microsoft's Multiplatform Plan