How OmniCheck validation works

OmniCheck turns a mobile list into a clear, downloadable operational result. It keeps formatting, normalization and point-in-time activity separate so each classification remains meaningful.

1. Upload and country

Upload a CSV or TXT and select one country. Country selection determines numbering and normalization rules.

2. Normalization

Numbers are cleaned and represented in international format. Records that cannot be normalized are classified as Invalid Format.

3. Point-in-time validation

Valid mobile numbers receive an activity check at processing time. This is a time-specific observation, useful close to the intended outreach.

4. Classification

  • Active: passed the applied check at that time.
  • Not Active: did not pass at that time.
  • Invalid Format: did not match the selected country's expected format.
Interpretation limit: a result does not certify identity, ownership, consent or future deliverability. Lists change and results should be treated as point-in-time observations.

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