This live counter estimates active mobile connections worldwide, rising second by second from the latest International Telecommunication Union (ITU) data and the average annual growth.
数字为根据最新官方统计（国际电联、联合国、联合国旅游组织）推算的估算值，仅供一般参考。
It estimates the total number of active mobile connections on Earth — a figure that is already larger than the human population, because many people carry more than one SIM or device. The baseline comes from the ITU and grows steadily each year.
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The counter above shows a live estimate of active mobile connections based on ITU data and average yearly growth. It updates every second.
Many people use more than one SIM card or device, so connections outnumber individual users.