Bulk-check RCS Numbers
Reach users whose devices support rich messaging and upgrade your business messaging
Upload up to 1 million numbers per batch. Two-layer checks (carrier RCS gateway probing + device compatibility) finish a full screening in about 3 minutes.
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
RCS Validity Check
RCS Number Check
Capabilities
What can GeekNums check on RCS?
Valid Filter
Verify the number is real (invalid / suspended detection) + carrier RCS gateway status + device RCS support (Android/Google Messages / iOS 18+) + RBM business messaging opt-in status.
Number status
RegisteredNot registered
Bulk 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 RCS in just 4 steps
Use case: find out which numbers support RCS.
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 RCS is enabled (device compatibility, business messaging opt-in)
Export Results
Download the completed file and export every filtered result in bulk.
Q&A
FAQ
Yes. Carrier RCS gateway probing plus a device compatibility database give ≥98% accuracy. We check not only whether the carrier offers RCS, but also whether the device supports it (such as native Google Messages on Android, Samsung Messages, iOS 18+) and whether the user has turned off business messaging (RBM). Numbers where the carrier supports RCS but the device doesn't, or the user has disabled RCS, are marked "SMS only" instead of RCS reachable.
We focus on high RCS-penetration markets: the US (Verizon, AT&T, T-Mobile), UK (Vodafone, EE, O2), Germany (Telekom, Vodafone), France (Orange), India (Jio, Airtel), Brazil (Vivo, Claro), Mexico (Telcel), Japan (NTT Docomo, SoftBank) and more. RCS rollout differs by country and carrier, and results show the specific RCS reachability. In markets where RCS isn't widespread yet (such as parts of Africa), results report "not enabled by carrier" and we recommend SMS or WhatsApp instead.
