Phone Number Validator - Bulk International Validation at $0.001

Validate, format and enrich phone numbers in bulk — 5x cheaper than Twilio Lookup ($0.005/number), no external API dependencies, no rate limits. Powered by the same industry-standard phone parser that powers WhatsApp, Android, Skype and every major CRM, so you get the exact same results the telecoms industry trusts.

Upload a messy list of international numbers in any format and get back clean E.164-normalized records with country, number type, carrier, timezone and region.

What you get

• Any input format accepted — +49 30 12345678, 030 12345678, (212) 555-0123, 0175/987 65 43
• Country detection — ISO code, country name, dialing code
• Number type — mobile, landline, VoIP, toll-free, premium-rate, shared-cost, pager, UAN, voicemail
• Carrier lookup — mobile operator name where available
• Timezone mapping — IANA timezones from the phone prefix
• Geographic region — city or area name (e.g. "Berlin", "Zurich", "London")
• Multi-format output — E.164, International, National, RFC3966
• Strict + lenient checks — both is_valid and is_possible returned
• 100% local validation — no external API calls, no rate limits, no proxy needed

Example output

German mobile

{
  "input": "0175 9876543",
  "is_valid": true,
  "country_iso": "DE",
  "country_name": "Germany",
  "country_code": 49,
  "e164": "+491759876543",
  "international": "+49 175 9876543",
  "national": "0175 9876543",
  "number_type": "MOBILE",
  "carrier": "Telekom Deutschland",
  "timezone": ["Europe/Berlin", "Europe/Busingen"],
  "location": "Germany"
}

Swiss landline

{
  "input": "+41 44 123 4567",
  "is_valid": true,
  "country_iso": "CH",
  "country_name": "Switzerland",
  "e164": "+41441234567",
  "number_type": "FIXED_LINE",
  "timezone": ["Europe/Zurich"],
  "location": "Zurich"
}

Invalid input

{
  "input": "notaphone",
  "is_valid": false,
  "is_possible": false,
  "error": "the phone number supplied is not a number"
}

How to use

Paste your phone numbers into the phoneNumbers input, set defaultRegion to the country most of your numbers come from (so numbers without a + country code parse correctly), and run. One clean record per number comes back.

Input

Parameter	Description	Default
phoneNumbers	Phone numbers to validate (any format)	(required)
defaultRegion	ISO-3166-1 alpha-2 country for parsing numbers without + prefix	DE
formats	Formats to include: E164, INTERNATIONAL, NATIONAL, RFC3966	["E164","INTERNATIONAL","NATIONAL"]

Use cases

• CRM hygiene — normalize messy HubSpot/Salesforce/Pipedrive phones to E.164 before migration or dedup
• SMS campaign pre-flight — filter out invalid and non-mobile numbers before an SMS blast to avoid wasted sends
• Dialer routing — route mobiles to SMS, landlines to your outbound dialer, premium-rate to a block list
• Fraud detection at signup — flag impossible numbers and geo-mismatches (ISO country vs account country)
• Timezone-aware outreach — use timezone data to call prospects at the right local hour
• Compliance reporting — count EU vs non-EU numbers for GDPR audits without writing parsing code
• Lead enrichment — append carrier, type and location to every phone in your pipeline

Pricing

Event	Price
Actor start	$0.001
Per number validated	$0.001

Example: Validate 10,000 numbers = $10.01 (vs Twilio Lookup at ~$50)

Numbers	Cost
1,000	$1.00
10,000	$10.00
100,000	$100.00

No proxy costs. No external API fees. No hidden markups.

Issues & Feedback

Found a bug or have a feature request? Open an issue on the Issues tab — we respond within 24 hours.

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