MSISDNChecker
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International Mobile Number Validation

Clean Your Mobile Database in Minutes

Upload a CSV or Excel file with millions of mobile numbers from any country. We validate each number against official international numbering plans and return two clean files: valid numbers and invalid numbers.

Start Validating → How it works

How It Works

Powered by Google's libphonenumber — the same library used by Android, WhatsApp and Gmail. Updated daily.

1. Upload Your File

Drag & drop or browse a CSV or XLSX file. Numbers can include country prefix (+34, +1, +44…). One number per row in column A.

2. Pay & Validate

See the number count, get an instant price quote and pay securely via Stripe. No account needed. Processing starts immediately.

3. Download Results

Download valid_numbers.csv with country ISO code, and invalid_numbers.csv. Files available for 24 hours.

Who Uses MSISDN Checker?

📱

Marketing Agencies

Filter SMS campaigns. Send only to real, reachable numbers and cut wasted spend.

📞

Telecom Operators

Validate ported numbers and identify numbering plan violations before routing.

🏦

Financial Services

Clean KYC data and ensure customer mobile numbers are valid before onboarding.

🛒

E-Commerce

Validate customer mobile numbers at checkout or during CRM database cleansing.

Simple Volume Pricing

The more numbers you validate, the lower the per-unit cost. Minimum charge $5.00.

Volume Price / number Example cost
Up to 1,000,000$0.00051M = $500
1,000,001 – 5,000,000$0.00044M in tier = $1,600
5,000,001 – 10,000,000$0.00035M in tier = $1,500
10,000,001 – 20,000,000$0.000210M in tier = $2,000
Over 20,000,000$0.000120M+ = $0.0001 each

Progressive pricing — each tier only applies to numbers within that band. Minimum charge $5.00.

Validate Your Numbers

Upload a CSV or XLSX file. Numbers in column A (one per row). Include the country prefix.

Drag & drop your file here

or click to browse

Choose File

Supported: .csv, .xlsx — Max 512 MB

Frequently Asked Questions