What is WhatsApp number checking?
It applies a selected WhatsApp check to a lawfully obtained number list and returns structured results aligned with the source data.
WhatsApp Hub
WhatsApp Number Checking Research and Guides
Practical guidance for WhatsApp registration, fast registration, high-precision registration, activity, gender and age, avatar, and full-format checks, from reliable TXT input to task selection and result interpretation.
Latest guides
307 published articles match this hub.
WhatsApp 1 min
Isle of Man WhatsApp Profile Photo Screening Detection Tutorial
The Isle of Man uses the UK country code 44, mobile number ranges 07624/07924, and landline 01624. After standardizing numbers to 12-digit pure numbers, first screen for activation and then for activity, with format tables, CSV examples, common errors, and compliance reminders attached.
Read guideWhatsApp 1 min
UK WhatsApp Full-Format Screening Tutorial
UK mobile numbers are 11 digits locally (starting with 07), and in international format are 44 followed by 10 digits. This article explains in detail the handling of 44, leading 0, 00 prefix, spaces, and parentheses, and includes methods to fix Excel scientific notation with Before/After examples.
Read guideWhatsApp 1 min
French Guiana WhatsApp Activity Screening Testing Guide
WhatsApp Activity Screening is used to filter numbers that are registered and have recent usage records. This article explains in detail the definition of active, the differences between Active/Online/Last Seen, how to choose between filtering for activated numbers and filtering for active numbers, and the restrictions and compliance considerations for active tags.
Read guideWhatsApp 1 min
Suriname WhatsApp Activity Screening Testing Guidelines
WhatsApp Activity Screening What is being filtered? How is it different from filtering by active, online, or Last Seen? Why is the registered number not equal to the active number? Read this article to understand the filtering logic, technical limitations, and compliance considerations.
Read guideWhatsApp 1 min
Saint Martin WhatsApp Activity Screening Guide
An article explaining the definition of WhatsApp Activity Screening, the differences between Active/Online/Last Seen, the applicable scenarios for filtering activated and active users, and a two-step combination strategy, with examples of detection result fields and privacy compliance considerations.
Read guideWhatsApp 1 min
What does Saint Barthélemy WhatsApp Registration Check mean?
WhatsApp Registration Check is for batch checking whether a phone number has registered a WhatsApp account. This article explains the differences between activation detection, active detection, and empty number detection, common return statuses, number format requirements, and the batch detection process.
Read guideWhatsApp 1 min
Czech WhatsApp Activity Screening Guide
WhatsApp Activity Screening What does it detect? What are the differences between Active, Online, and Last Seen? Registration does not equal activity. This article explains the usage scenarios, technical limitations, and compliance considerations for filtering activated versus active users.
Read guideWhatsApp 1 min
Slovakia WhatsApp Activity Screening Guide
WhatsApp Activity Screening refers to identifying accounts that are still in use among registered numbers recently. This article explains the definition of active, the differences between Active/Online/Last Seen, the applicable scenarios for filtering by registered and filtering by active, the two-step funnel operation, and compliance boundaries.
Read guideWhatsApp 1 min
What does Slovakia WhatsApp Registration Check mean?
This article explains the definition of WhatsApp Registration Check, the detection contents, common return statuses, number format requirements, and the batch detection process, and uses a comparison table to distinguish between screening for activation, screening for activity, empty number detection, and number verification.
Read guideWhatsApp 1 min
Slovenia WhatsApp Activity Screening Guide
WhatsApp Activity Screening refers to identifying phone numbers that have been recently using WhatsApp based on publicly available signals such as last online time and online status. This article explains the definition of activity, the difference from numbers that are simply registered, applicable scenarios, technical limitations, and compliance considerations.
Read guideWhatsApp 1 min
Ukraine WhatsApp Activity Screening Guide
WhatsApp Activity Screening What exactly does it filter? What are the differences between Active, Online, and Last Seen? Why does registration not equal activity? How to combine filtering by activation and filtering by activity, along with technical boundaries and compliance considerations.
Read guideWhatsApp 1 min
What does Moldova WhatsApp Registration Check mean?
WhatsApp Registration Check is used for batch checking whether phone numbers are registered with WhatsApp. This article explains the judgment logic, the difference between registration and activity, common return statuses, phone number format requirements, failure reasons, and the result handling process.
Read guideFrequently asked questions
Which upload format is supported?
The current workflow accepts TXT files. Use one normalized phone number per line.
Where can I confirm currently supported fields?
Check the WhatsApp product page and signed-in dashboard for live task types, fields and credit usage.
