Have you ever switched mobile phone carriers using “MNP”?

“ITmedia Mobile Weekly Top 10” introduces the top 10 articles by tallying the number of article accesses on ITmedia Mobile in a week. This time, we have summarized and summarized the seven days from March 16, 2023 to March 22, 2023.

The number one hit in this period was an article summarizing things to be aware of when using mobile phone number portability (MNP).

MNP is a system that allows mobile phone numbers to be handed over to other mobile phone carriers, and started in 2006. Later, PHS was added to the system, and preparations are currently underway for a “one-stop procedure” in which the number can be handed over only by the procedure on the side of the company to which the person has moved.

Although it is an MNP that allows you to take over the mobile phone number as it is, it is only the mobile phone number that can be taken over. Some services used by the company you moved out from can be transferred and some cannot be transferred. Carrier mail, which was a symbol of “services that cannot be handed over”, can now be handed over, although it is charged. However, it is necessary to complete the procedure within a certain period of time after the number transfer by MNP (≒cancellation of the original carrier).

Considering this, there are surprisingly many things to consider when MNPing your main mobile phone line. You’ll need to determine if the effort is worth the effort when moving to another career.

Attention will be paid to whether the one-stop procedure will lead to the elimination of the “troublesome” part of MNP.