About NexCheck
We do one thing: determine what state a number is in on a given platform, and do it reliably enough to price per record and run at scale.
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What we do
The number lists cross-border teams work with are usually a mix of disconnected lines, numbers that never registered on the target platform, and long-abandoned accounts. Sending to them costs more than wasted budget: a high dead rate drags the sending side into risk control.
NexCheck puts those numbers through a pipeline and resolves, record by record, what state each one is actually in on the target platform: registered or not, recently active or not, banned, plus whatever attributes such as gender and age are obtainable. Results come back grouped as live or dead.
What we cover
- 109 distinct detection services across 9 categories, from baseline number attributes to per-platform account state
- 44 platforms have dedicated services, spanning social, crypto and finance, commerce and logistics, work and local services
- Number formats, carrier structures and platform ecosystems documented for 50 core markets
- Two ways in — the web console and a RESTful API — with batch submission and webhook callbacks
The services and unit prices shown on this site are read directly from the platform price list, so the pages follow it when it changes. We do not maintain a separate set of marketing figures.
The Nex Technology stack
NexCheck is one piece of the Nex Technology stack. The other products each handle a different link in the cross-border chain:
- NexIP — global proxy IP for data collection, account operations and region-specific access
- NexSMS — global SMS verification for signup, verification and automation
- NexBrowser — anti-detect browser for isolating multi-account environments
- NexSCRM — multilingual social SCRM for outreach and customer retention
How we treat data
The lists you submit are your data. We process them only to run the checks you asked for, encrypt them with AES-256 in transit and at rest, and neither sell nor lend them — nor use them to build number lists sold to anyone else.
The full account is in the privacy policy, which also has a dedicated section on your role as data controller and your obligation to ensure that the provenance and intended use of a list comply with applicable law.