Guides to SMS verification
What to do when a code does not arrive, how virtual numbers work, and how to pick one that an app will accept.
- Telegram code not received: what to check Why Telegram sometimes sends no SMS code, where the code goes instead, and what to try before buying another number.
- WhatsApp verification code not arriving The usual reasons WhatsApp does not send a code to a new number, and which choices make delivery more likely.
- How SMS verification works What happens between tapping "send code" and the SMS arriving, and why some numbers are refused.
- Free public numbers vs private numbers What you get from a free receive-SMS site, what you get from a private number, and when each makes sense.
- Using a second number to protect your privacy When a separate number for sign-ups protects you, when it does not, and which accounts should stay on your own phone.
