Batch Data Normalization
Bulk Phone Number Validator & CSV Cleanup
Clean, normalize, and validate lists of phone numbers into canonical E.164 format. Detect country prefixes, classify mobile vs landline vs VoIP lines, remove malformed entries, and export clean datasets.
Quick Actions:
Important Technical Distinction: Numbering-Plan Format vs. Active Reachability
Validation confirms that a phone number adheres to international and domestic numbering rules (ITU-T E.164, NANPA, Ofcom, BNetzA). Format validity does not guarantee that a number is currently assigned to an active subscriber or reachable on live radio networks.
Automate in CI/CD & Workflows
Need to validate thousands of numbers programmatically?
Integrate the SMSRiver Phone Lookup REST API into your signup flow, CRM, or data pipelines. Normalize numbers, verify carriers, and filter VoIP lines with single-digit millisecond latency.