Filter Task

This page answers common questions related to filter tasks.

1. What are the file format requirements for local uploads?

TXT format file, one number per line (with country code, no "+" prefix). Example: 447848832634. Minimum 2,000 numbers, maximum 1,000,000 numbers.

2. Can I use the valid results from a valid filter task as input for an activity detection task?

Yes. When creating an activity detection task, set Data Source to Valid Data from Registration Task, then select the corresponding registration task to use its valid results as the data source.

3. Why hasn't the task progress changed after a minute?

The system sends an instant notification when a task completes. You can also click the refresh icon in the top-right of the task list to manually refresh. The system updates task progress every 10 seconds.

4. What export formats are available?

Supported formats: txt, vcf, csv, xlsx. vcf is for importing into your phone contacts. csv and xlsx are spreadsheet formats. We also support batch export — results are split into batches and packaged into a single archive.

5. Is filtering for +86 (China mainland) numbers supported?

No. We focus on overseas markets outside mainland China. To avoid mainland China's monitoring mechanisms, +86 number filtering is not supported on the platform.