Check Signal Registration
Filter registration status and discoverable numbers in one click to organize real users
Upload up to 1 million phone numbers in bulk. Number status checks complete bulk filtering quickly and separate results automatically, saving manual verification time.
Capability Track
phone-list.txt
+44 7……2484
+62 8……9017
+55 1……6723
√ One number per line in TXT
Valid filtering accuracy ≥98%
Average speed: 3 min / 1M records
Export TXT/CSV/Excel

Signal Validity Check

Signal Number Check
Capabilities
What can GeekNums check on Signal?
Number Validity Filter
Verify the number is real (invalid / suspended / invalid domain detection) + whether it's registered on Signal.
Number status
RegisteredNot registeredBulk Number Filter
Submit numbers in bulk, then review and filter results in one place to process large volumes efficiently.
Screening progress
4 Steps
Bulk-check Signal in just 4 steps
Use case: find out which numbers are on Signal.
Generate Numbers
Use the number generator to create numbers for your target region (or upload your own numbers directly).

Upload Numbers
TXT/CSV/Excel supported, up to 1 million records per upload.

Two-layer Validity Check
1. Check the number really exists
2. Check whether it's linked to a Signal account

Export Results
Download the completed file and export every filtered result in bulk.

Q&A
FAQ
Prepare your phone numbers in a supported file format, upload them on the Signal number check page, submit and wait for the checks to finish, then view the bulk results.
Results reflect the number's status at the time of checking and are best used as a filtering reference. Since account status, privacy settings and platform mechanisms can change, results don't represent a permanent account status.