Bulk Phone Number Checker — WhatsApp, Telegram & 45+ Platforms

CheckNumber.AI checks phone numbers and emails across 45+ platforms — WhatsApp, Telegram, Facebook, Instagram, Amazon, Binance and more. Bulk checks via no-code CSV upload or REST API.

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WhatsApp Number Check

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Need bulk checks across WhatsApp, Telegram, or 45+ other platforms?

→ Get 1,000 free trial checks

45+

Platform detectors

$0.30

Per 10,000 checks

200+

Countries supported

REST

API & no-code upload

Every platform detector we support

Tap a product to jump to detailed pricing and features for that check.

CheckNumber.AI provides 45+ production-ready detectors across phone, messaging, social, cryptocurrency exchange, and carrier categories. Every check supports bulk upload (CSV/TXT) and REST API integration. Results are returned in real time and can be exported as CSV.

Phone, messaging & social account checks

Cryptocurrency exchange checks

Carrier intelligence

Open full pricing & feature breakdown → Try the free WhatsApp number checker →

Why businesses choose CheckNumber.AI for bulk WhatsApp & phone number verification

A simple way to bulk check and filter WhatsApp numbers and accounts across 45+ platforms via API or no-code CSV upload.

No-code platform — upload and go

Upload a CSV or TXT file with your phone numbers directly on our web platform. No developer, no API key, no setup. Get results in minutes and export as CSV.

Bulk verify large contact lists

Efficiently validate large lists of WhatsApp numbers and other platform accounts simultaneously. Perfect for businesses that need to clean CRM data or qualify marketing lists across 45+ platforms.

Real-time, high-accuracy detection

Every check hits the platform in real time — no cached data, no stale results. Our detection engine delivers high-accuracy results for active vs. inactive accounts within seconds.

Global coverage — all countries supported

Check WhatsApp numbers and other platform accounts from any country worldwide. All international phone formats are supported, including country codes for 200+ regions.

Full verification history & audit trail

Every check is logged and accessible at any time. Review past batch results, track changes over time, and maintain a complete audit trail for your operations.

Export results as CSV — pass / fail / all

Export your results in CSV format filtered by active, inactive, or all records. Feed directly into CRMs, marketing tools, or custom workflows.

Frequently Asked Questions

CheckNumber.AI supports 45+ platforms including WhatsApp, Telegram, Facebook, Instagram, Viber, LINE, Zalo, iMessage, RCS, Twitter/X, Amazon, Apple, Netflix, Spotify, Snapchat, Messenger, Signal, Threads, Microsoft, and cryptocurrency exchanges (Binance, KuCoin, HTX, CoinW) plus carrier detection. See the full list on our pricing page.

Both options are available for WhatsApp and all 45+ supported platforms. Upload a CSV or TXT file directly through our web platform for a no-code workflow, or integrate via REST API for automation. Our system checks each number in real time.

Our WhatsApp and multi-platform verification system checks in real time against each platform's servers, ensuring high-accuracy results. Processing speed varies by platform due to their rate limits. Upload your list and results are returned as they complete.

All checks are performed in real time against the target platform — no cached or stale data. Accuracy depends on the platform, but our real-time detection engine consistently delivers high-accuracy active/inactive classification.

Yes. CheckNumber.AI supports bulk account detection for Binance, KuCoin, HTX, and CoinW — both by phone number and by email address. This is useful for anti-fraud, KYC screening, and marketing list qualification.

All countries and international number formats are supported, including full E.164 format with country codes. Our system handles 200+ country codes automatically — no manual formatting required.

Pricing starts at $0.30 per 10,000 checks for platforms like Facebook and Instagram. WhatsApp real-time checks are $1 per 10,000, Telegram $2.50 per 10,000, and crypto exchange verification (Binance, KuCoin) from $6.50 per 10,000. All plans are pay-as-you-go with no monthly fee. See full pricing at checknumber.ai/pricing.

Yes. New accounts receive 1,000 free checks upon signup — no credit card required. You can also try a single WhatsApp number check for free on our homepage without logging in.

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WhatsApp Checker Blog & API Documentation | CheckNumber.AI

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WhatsApp number checker guides, bulk verification API tutorials, and multi-platform account detection best practices.