What is the display number of free SMS sent by Yixin in China?

Domestic/overseas email customers send free short messages with display number 1, and telecom customers receive push short messages with 1 18065+ customer id (reply is permanent); 2. The mobile customer receives:10690 3355589/106575257818/106571205797+4-digit random code (valid within 24 hours); 3. Unicom customer reception:10655057740/10655057418+customer id (reply permanently). Introduction: Yixin is the latest and hottest instant messaging software for mobile phones. In addition to supporting the sending of high-definition voice, text and pictures, there are also free text messages, telephone messages and rich and interesting stickers and expressions. Applicable customers: 1 and mobile phone customers of Android system (version 2.2 and above); 2. Mobile phone customers of 2.IOS system (version 6.0 and above); 3.PC customers (WindowsXP7 and above). Description of charge: 1, no function fee; 2. Communication charges: Internet traffic charges generated when using e-mail are charged by package customers at preferential package rates, and those without packages are charged at standard traffic rates. For more service offers, click on "official website" Customer Service 2 18 below to answer your questions.