拨打腾讯客服服务电话咨询，或者使用邮箱来查询，也可以用手机编辑短信“CX”到1066170015，查询与你的手机号绑定的QQ号。系统为了保证你的QQ号安全，会隐去QQ号中间四位。
具体操作如下：
1、登录qq，点击“邮箱”。
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2、在邮箱界面，点击“设置”。
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3、点击“账户”，点击“注册手机号邮箱账号”。
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4、进入页面，点击“马上开通”即可看到qq绑定的手机号码。
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