Cell broadcast messages are classified by topic and allocated a channel number, message code, update number, and language.

小区广播消息按主题分类，给每条消息都分配了通道号、消息代码、更新号和语言。

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Taking the address of message service routine as a message code directly, management can get utmost efficiency.

直接以消息服务程序的地址作为消息代码，可以达到最高的调度效率。

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The other person receives a text message with a code to take to the local M-Pesa agent to get the money.

VOA: special.2009.11.02

People could send a text message with the code and get a message back confirming that what they bought is listed in a database.

VOA: special.2010.03.01

"they would like to receive a message that uses some kind of code, and instead of sending a message that reminds them of their pill, they would like a motivational message, like for example, 'it's time for your life.'" Services like that have been shown to work in low-income countries, and now they're starting to appear in richer countries.

VOA: standard.2010.02.24

In the prison library, where inmates most ask for Westerns and romance novels, employees scour pages of returned books just to make sure there's not a message or code that could be passed along to another inmate.

CNN: Reporters get first look inside mysterious Supermax prison

Many highly publicized attacks have been based on a tactic called "spear-phishing, " where email users are tricked into opening a legitimate-sounding message that contains code called malware that lets attackers penetrate corporate networks.

WSJ: Apple Hit by Hackers Who Struck Facebook

Select Comfort bought ads in local newspapers, which instructed users to send the company an SMS message with their zip code.

FORBES: CMO Network