Mobile phone numbers are usually cancelled after three months and can no longer be used. If you do not exceed the time, you can continue to use after recharging. At present, mobile phones are divided into pre-paid and post-paid cards. The prepaid card is valid for 90 days from activation and increases after recharging. If the expiration date is exceeded, it will indicate that the card has expired. If it is still not recharged 90 days after the expiration date, the number will be cancelled and can no longer be used. If the mobile phone number has expired, you can take your mobile phone and ID card, go to the local business hall, and ask the clerk to check whether the number is occupied by others, if not, you can make it up.