NexCheck-筛号平台
How to Do LINE Bulk Number Screening: Number Format Cleaning, Country-Specific Checks, Result Interpretation, and CRM Write-Back
A step-by-step guide to LINE bulk number screening: standardize Japanese, Taiwanese, Thai numbers into international format and deduplicate, test samples and run checks by country, correctly understand the relationship between 'not detected' and privacy settings, and write results back to CRM with detection timestamps.
How to Write Telegram Phone Number Format: E.164 International Format, Leading Zero Handling, and Multi-Country List Organization Order
Telegram identifies numbers in E.164 international format: country code plus the number with domestic prefixes removed, digits only. This article provides the order for organizing multi-country contact lists, including separators, 00/011 prefixes, leading zeros, Excel digit loss, deduplication, and grouping by country, and lists numbers that still need separate handling even after correct formatting.
How to Clean a Telegram Customer List: Formatting, Activation Checks, Activity Tiers, and CRM Write-Back
Using a mixed-country customer list as an example, this article explains the sequence for cleaning a Telegram customer list: first unify numbers to E.164 and deduplicate, then split by country, run basic number checks and Telegram activation checks, and finally segment by Last seen ranges and write results back to CRM. It also clarifies why "not found" does not mean unregistered and how to interpret results like "a long time ago."
How to Filter Telegram Numbers from a CSV: List Cleanup, Batch Upload, Field Interpretation, and CRM Write-back
Using a multi-country contact CSV as an example, this article explains the preparation order before Telegram bulk checking: keep record IDs, unify to E.164 format, deduplicate after normalization, split by country into batches, and save as UTF-8. It also explains the meaning of result fields such as registered, active, and banned, clarifies the 'not found' cases caused by privacy settings, and how to write results back to CRM using record IDs.
How to Use a Telegram Number Screening Platform: From List Cleaning and Field Selection to Result Write-back
A guide for operations, data teams, and developers who have a phone number list and want to check Telegram registration and activity status, covering format normalization, deduplication, detection field selection, interpretation of valid/invalid groups and activity tiers, and web vs. API options with compliance boundaries.
