How long can my number receive the verification SMS?

Every SMS activation order has a limited active window during which the number can receive your verification code. The exact time remaining is always shown on the order screen — it can vary, so rely on the countdown you see there rather than on a fixed rule.

During that window, request the code from the service you're verifying and complete your registration or login. If no code arrives before the window ends, cancel the order or let it expire; the held amount is automatically released back to your wallet and you are not charged.

Once the code has been received and your verification is complete, the account you created keeps working as normal. What happens to the number itself after that point is outside NorthSMS's control — activation numbers are one-time, so don't count on receiving anything else on the same number later.

If you need a number that stays reachable and keeps receiving SMS beyond a single code, use a rental number instead: you choose the period (from hourly up to annual), you can extend supported numbers before they expire, and you can keep auto-renew on so the rental doesn't lapse.