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Everything on SmartPhoneValidator
SmartPhoneValidator is a phone number validation API and web app. It checks validity, line type, carrier, location and a 0–100 risk score for US, Canadian and international numbers, one at a time, in batches or from a CSV file. Find every section below, with real product screenshots at the end.
Product
- HomeReal-time phone number validation API: line type, carrier, location and risk score for the US, Canada and 248+ countries.
- FeaturesWhat a phone lookup returns and how to read it: validation status, line type, carrier, E.164 format, country and timezone, and risk signals.
- Use casesWhere phone validation fits: lead capture, user registration, SMS and voice campaigns, CRM clean-up and risk review.
- Risk scoreA plain-English guide to the 0–100 risk score on every validation: what it means, what affects it and what to do with it.
- Pricing$0.004 per phone validation from a prepaid wallet, optional automatic refill, and 100 free lookups for new accounts with no credit card.
API and developers
- API documentationValidate phone numbers with one REST call: authentication, request and response reference, batch and bulk CSV validation, billing and errors.
- Quick startCreate an account, copy your API key and send your first request.
- AuthenticationSend your API key in the X-API-Key header or as a Bearer token.
- Validate a numberPOST /v1/validate: request fields and an example response.
- Batch validationValidate up to 100 numbers in one request.
- Bulk CSVUpload a CSV, follow the job and download the results.
- ErrorsHTTP status codes and what they mean.
Free tools
- All free toolsTools to validate phone numbers, check line type, look up carriers, format numbers to E.164 and find where a number is from.
- Phone ValidatorCheck a number with its country code and review its validation result.
- Line Type CheckerFind out whether a number is mobile, landline, VoIP, toll-free or premium.
- Carrier LookupLook up the carrier and network details available for a number.
- Number Format CheckerCheck a number’s structure and see its international E.164 format.
- Location FinderSee the country, region and timezone associated with a number’s numbering plan.
- Bulk ValidatorValidate a CSV list of numbers and download the results.
Country coverage
- All countriesSmartPhoneValidator validates numbers from 248+ countries and territories. Pick a country to see its dial code, formats and what each check returns.
- United StatesValidate United States (+1) phone numbers on the web, in bulk and by API.
- CanadaValidate Canada (+1) phone numbers on the web, in bulk and by API.
- United KingdomValidate United Kingdom (+44) phone numbers.
- AustraliaValidate Australia (+61) phone numbers.
Company, legal and machine-readable files
- AboutWhat SmartPhoneValidator is, what a check returns, ways to use it, and who runs it.
- ContactSales and partnerships, technical support, or book a demo.
- Terms & ConditionsTerms governing use of the website, applications, APIs and dashboard.
- Privacy PolicyHow SmartPhoneValidator collects, uses and protects information.
- Refund & Cancellation PolicyRefund and cancellation terms.
- llms.txtShort index of the site for AI assistants.
- llms-full.txtFull plain-text reference: API, pricing, pages and a description of every image.
- sitemap.txtPlain-text list of every page, one address per line.
- sitemap.xmlXML list of every page for search engines.
INSIDE THE PRODUCT
Product screenshots.
Real screens from the app, shown with sample data.
