How does the mainland send iMessage to Taiwan Province Province?

The sending number is: 00886+ the other party's mobile phone number, which can be received immediately.

Chinese mainland area, referred to as "mainland area", is the territory of China except Taiwan Province Province, including the Hong Kong Special Administrative Region and the Macao Special Administrative Region. Corresponding to Taiwan Province Province, it belongs to the same China, while Chinese mainland area is referred to as "Chinese mainland" or "mainland area".

China Taiwan Province province area refers to the area under the jurisdiction of the authorities of Taiwan Province province (including the main island of Taiwan Province province and its affiliated islands such as Lan Yu, Green Island, Diaoyu Island and Penghu Islands), as well as Jinmen, Mazu and Wuqiu Islands in Fujian Province, with a total land area of 36,000 square kilometers. The administrative divisions of Taiwan Province Province include: Taibei, Xinbei, Taoyuan, Taichung, Tainan, Kaohsiung, Keelung, Hsinchu and Chiayi, Hsinchu, Miaoli, Changhua, Nantou, Yunlin, Chiayi, Pingtung, Taitung, Hualien, Yilan, Penghu, Jinmen and Lianjiang (Mazu