Global Phone Validation API

Validate phone numbers across 200+ countries and territories worldwide, determine carrier name, line type, and prepaid status, and identify disconnected phone numbers with a phone activity score. Our comprehensive international coverage ensures accurate and reliable phone data across global markets, with 18,000+ carriers tracked and over 1 billion phone numbers in our database.

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{id: "Phone.c33d61b1-1cc7-4923-adad-2daf2edf581a",
phone_number: "+61414924070",
is_valid: true,
activity_score: 70,
country_calling_code: "61",
country_code: "AU",
country_name: "Australia",
line_type: "Mobile",
carrier: "Vodafone Network Pty Ltd"
}

Use Cases
Features
Developers
Benefits
Pricing

Global Phone Validator API Use Cases

International Lead Contactability and Prioritization

Prioritize leads across the world with the best chance of contactability based on whether numbers are reachable internationally, not disconnected or temporary, and belong to verified subscribers across 200+ countries.

Global Lead Validation and Normalization

Validate phone attributes across international markets to ensure numbers are connected and assigned to subscribers worldwide, with comprehensive coverage across 18,000+ global carriers.

International Lead Verification and Append

Leverage global phone metadata and subscriber details from our 1B+ number database to remove spam leads and append additional data across international markets for improved lead conversion.

Global Message Delivery

Confirm number legitimacy across 200+ countries before sending messages. Distinguish mobile numbers from temporary VoIP and landlines globally and verify correct international number formats to reduce delivery errors.

Worldwide Fake Accounts and Promo Abuse

Stop fake account creation and promo abuse across global markets with line type and carrier intelligence that identifies suspicious temporary numbers from 18,000+ tracked carriers worldwide.

Features

Global Phone Activity Score

Indicates if phones are connected or disconnected across 200+ countries and territories worldwide.

International Validity Checks

Shows whether a number is valid, assigned to a carrier, and is in-service worldwide.

Worldwide Carrier Intelligence

Identifies carriers and MVNOs across all global markets, covering 18,000+ carriers including regional providers in 200+ countries and territories.

Global Line Type Detection

Provides seven unique line types across international markets, including mobile, fixed and non-fixed VoIP, landline, premium, toll-free, and voicemail services worldwide.

International Prepaid Status

Indicates whether mobile numbers are part of prepaid plans across global markets, supporting regional variations in carrier structures.

Add-ons Available

Litigator Checks:

Identifies if the phone subscriber is associated with a serial litigation under TCPA or similar regulation

Access our identity data via API integration or Batch Upload — whichever fits your needs best.

Seamlessly integrate Global Phone Validation API into your platform for real-time international phone validation.

Upload CSV files for bulk phone number validation across global markets. Get your international results within minutes.

Built by Developers, for Developers

Built for Global Speed

Built for International Scale

Built for Worldwide Reliability

World-Class API Documentation & SDKs

Customer-Obsessed Technical Support

200+

Countries and Territories

18,000+

Carriers Worldwide

1B+

Phone Numbers Tracked

1,000

QPS (up to)

99.99%

Uptime

Benefits

Trestle’s Global Phone Validation API provides several benefits that are valuable for international businesses and organizations. Here are some of the key advantages of our worldwide phone validation tool:

Comprehensive Global Coverage

Validate phone numbers across 200+ countries and territories with our comprehensive international phone validation. Identify carrier details from 18,000+ global carriers, line type, and phone activity status for both domestic and international numbers to ensure accurate and reliable phone data worldwide.

International Lead Quality

Weed out junk leads with invalid, temporary, or disconnected numbers across global markets using Global Phone Validation API, ensuring sales teams can focus on the best international leads and improve conversions worldwide.

Worldwide Data Quality

Ensure that phone numbers collected or stored in your global systems are valid and connected across international markets. By validating phone numbers in real-time across 200+ countries, you can detect and eliminate incorrect, disconnected, or fake numbers from your international lead lists and CRM systems.

Global Message Optimization

Boost your delivery rates and cut unnecessary costs across international markets with Global Phone Validation API. Distinguish mobile numbers from landlines and VoIPs worldwide and optimize SMS routing with global carrier data from 18,000+ tracked carriers for optimal international delivery.

International Fraud Protection

Protect against fraud with authoritative global phone intelligence data. Global Phone Validation API uses real-time risk signals across international markets to detect fraud and trigger step-up authentication when needed worldwide.

Enhanced Global User Experience

Global Phone Validation API provides better experiences with passive authentication for legitimate users across international markets using global phone metadata intelligence, while step-up authentication is only triggered when needed for suspicious sign-ups worldwide.