NexCheck-筛号平台
What's the Difference Between WhatsApp Filtering and Number Validation? Detection Layers, Processing Order, and How to Merge Results
Number validation checks whether a number works as a phone number, is active, and what line type it belongs to; WhatsApp filtering checks whether the number has a WhatsApp account and what state that account is in. This article uses a customer list to explain what each checks, why one cannot replace the other, the recommended processing order, and how to tag and write back conflicting results.
The Three-Layer Processing Order for International Number Detection: From Format Standardization to Platform Activation Status
Cross-border customer list detection should proceed in three layers: first use the E.164 standard to complete area codes and parse number ranges, then query carrier and empty-number status via HLR, and finally detect registration and activity status for business platforms. This article presents the cleaning and splitting order for multi-country lists, the boundary between basic line verification and platform status detection, and the rationale for choosing between console batch processing and API write-back.
