Follow a practical phone SIM check for an outgoing call, sending SMS and receiving SMS.
Use an active SIM with permission. Call a trusted person and speak both ways. Exchange harmless test SMS messages with that consenting person and confirm delivery.
The website cannot independently read your messages or certify mobile radio hardware. Carrier coverage, a plan or message settings can explain failure. RCS and iMessage are not SMS.
Use the phone’s dialler and Messages app yourself. Carrier charges may apply. Never use emergency numbers or share OTPs.
Results are saved only in this browser for up to 24 hours. This single test does not replace a complete used-phone inspection.
Run the full buyer check