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March 10, 2025

Top 5 NumLookup API Alternatives in 2025

Nicolas Rios

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NumLookup API is a service that provides phone number lookup and validation. While it offers a range of features, it might not be the ideal solution for everyone.

This article will explore five alternatives to NumLookup API, providing options that may better suit different needs and preferences. Whether you're looking for more features, better pricing, or different functionalities, these alternatives could be worth considering.

Best Alternatives to NumLookup API in 2025

1) Abstract API

Abstract API

At Abstract API, we offer a powerful Phone Validation API designed to validate and verify phone numbers in real-time or asynchronously. Our API provides detailed information about the phone number, including its validity, carrier, line type, and geographic location. With support for phone numbers from over 190 countries, our tool is built with security and compliance in mind, ensuring data privacy and protection.

API Features

  • Global Coverage: The IP Geolocation API allows users to geolocate any IP address worldwide, providing extensive global coverage.
  • Real-time Data: The API delivers real-time geolocation data, ensuring that users receive the most current information available.
  • High Accuracy: The API is designed to provide highly accurate geolocation data, including country, region, and city-specific details where possible.
  • Scalability: Built for scale, the API can handle from 10 to 10,000 requests per second, ensuring it meets the needs of both small and large applications.
  • Security: All interactions with the API are secured via 256-bit SSL encryption (HTTPS), ensuring data privacy and protection.
  • Integration Capabilities: The API integrates seamlessly with various tools and platforms such as Salesforce, AWS, Zapier, GCP, Hubspot, and Azure.
  • Real-time SMTP Check/Verification: The API includes real-time SMTP check/verification to validate email addresses, enhancing data accuracy.
  • Comprehensive Documentation: The API offers extensive documentation, including code samples and integration guides, to help users get started quickly and efficiently.

These are just a few of Abstract API's many features. Check them out here to learn more.

Abstract API Pricing

  • Starter Plan - $19/month: Includes 1,000 API calls per month and supports up to 3 requests per second. Domain whitelisting is also available.
  • Basic Plan - $39/month: Offers 25,000 API calls per month with a limit of 5 requests per second. Domain whitelisting is included.
  • Standard Plan - $69/month: Provides 50,000 API calls per month and allows up to 10 requests per second. This plan also includes domain whitelisting and multiple API keys.
  • Business Plan - $99/month: Grants 100,000 API calls per month with a capacity of 20 requests per second. Domain whitelisting and multiple API keys are part of this plan.
  • Professional Plan - $199/month: Includes 250,000 API calls per month and supports up to 40 requests per second. Domain whitelisting and multiple API keys are also available.
  • Growth Plan - $499/month: Offers 650,000 API calls per month with a limit of 100 requests per second. This plan includes domain whitelisting and multiple API keys.

Contact us if you would like a plan based on your specific needs like a custom solution for your specific needs. Contact us.

What Are Users Saying?

Abstract API has garnered positive feedback from users, who appreciate its reliability and ease of use. The consensus is that it significantly enhances productivity and accuracy.

  • "We've saved countless hours and can focus on our core business, not the details of IP geolocation or email validation. Abstract is a no brainer." - Chris Miller, Uber
  • "The developer-oriented documentation is great, with examples in common languages. I was up and running in almost no time!" - Andy J.

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2) Amazon Pinpoint Phone Number Validation

Amazon Pinpoint Phone Number Validation

Amazon Pinpoint Phone Number Validation is a service that helps businesses ensure the accuracy of phone numbers by verifying their validity and carrier information. This tool is essential for maintaining clean and reliable contact data, reducing the risk of communication errors.

API Features

  • Carrier Detection: Identifies the carrier associated with a phone number, helping businesses tailor their communication strategies.
  • Number Type Identification: Differentiates between mobile, landline, and VoIP numbers, ensuring messages are sent to the appropriate device.
  • Geolocation Information: Provides the geographical location of the phone number, aiding in regional marketing and compliance efforts.

Amazon Pinpoint Phone Number Validation Pricing

Monthly Targeted Audience (MTA): $0.0012 per endpoint after the first 5,000 endpoints, which are free.

Events: $0 for the first 100,000,000 events each month, and $0.000001 per event after that.

Deliverability Dashboard: $1,250 per month, including reputation monitoring for up to five domains and 25 predictive email placement tests. Additional domains are $25 per domain per month, and additional predictive tests are $10 per test.

Dedicated IP Addresses: $24.95 per month for each dedicated IP address.

Amazon Pinpoint Phone Number Validation's pricing is not public. Contact their support for more info.

3) Twilio Lookup API

Twilio Lookup API

Twilio Lookup API is a powerful tool that allows businesses to validate phone numbers, identify carrier information, and determine the type of phone number, ensuring accurate and efficient communication.

API Features

  • Caller Name Lookup: Retrieves the name associated with a phone number, providing additional context for incoming calls.
  • Line Type Detection: Identifies whether a phone number is mobile, landline, or VoIP, ensuring messages are sent to the correct device.
  • Carrier Information: Provides detailed information about the carrier associated with a phone number, aiding in communication strategy and compliance.

Twilio Lookup API Pricing

  • Base Pricing: $0.05 per successful verification plus standard channel fees.
  • Volume Pricing: Custom pricing available by contacting sales for volume-based discounts.
  • SMS: $0.05 per successful verification plus $0.0079 per SMS (US). International SMS pricing available.
  • WhatsApp: $0.05 per successful verification plus $0.0147 per conversation (US). WhatsApp pricing available.
  • Silent Network Auth: Priced per country as a single, all-inclusive fee. Contact sales for details.

4) Plivo Verify API

Plivo Verify API

Plivo Verify API is a robust service designed to authenticate phone numbers, ensuring secure and reliable communication for businesses. It offers features like phone number validation, carrier detection, and fraud prevention to enhance user verification processes.

API Features

  • Identity Match: Confirms user identities by matching user-supplied data against authoritative sources to prevent bots and false account creation.
  • SIM Swap Detection: Detects SIM swap activities by providing timestamps and dates of any SIM changes, enhancing security measures against fraud and account takeovers.
  • Line Type Intelligence: Identifies the carrier and phone line type, helping mitigate fake accounts and improve message deliverability by distinguishing between different types of phone lines.

Plivo Verify API Pricing

  • Base Pricing ($0): Covers OTP verification and fraud shield costs.
  • SMS Pricing: Starts at $0.0055 per SMS, with costs varying based on the destination country.
  • Voice Pricing: Begins at $0.0100 per minute, depending on the destination country.
  • WhatsApp Pricing: Starts at $0.0143 per conversation, with rates varying by destination country.
  • Volume Pricing: Custom pricing available by contacting support for volume-based discounts.

5) Loqate Phone Validation

Loqate Phone Validation

Loqate Phone Validation is a comprehensive service designed to verify phone numbers, ensuring accurate and reliable contact information for businesses. It offers features like carrier detection and geolocation, enhancing communication strategies and compliance efforts.

API Features

  • Carrier Detection: Identifies the carrier associated with a phone number, helping businesses tailor their communication strategies.
  • Geolocation Information: Provides the geographical location of the phone number, aiding in regional marketing and compliance efforts.
  • Number Type Identification: Differentiates between mobile, landline, and VoIP numbers, ensuring messages are sent to the appropriate device.

Loqate Phone Validation Pricing

  • £2500 Plan: Phone validation at 3.1p per lookup.
  • £1000 Plan: Phone validation at 3.7p per lookup.
  • £500 Plan: Phone validation at 4.5p per lookup.
  • £250 Plan: Phone validation at 5.3p per lookup.
  • £100 Plan: Phone validation at 6.1p per lookup.

What to Consider When Selecting a NumLookup API Alternative?

  1. Carrier and Line Type Identification: Ensures messages are sent to the correct device by differentiating between mobile, landline, and VoIP numbers.
  2. Global Coverage: Supports phone number validation in over 190 countries, making it suitable for businesses with an international presence.
  3. Scalability: Offers high throughput and unlimited concurrency for paid plans, allowing businesses to handle large volumes of requests without performance issues.
  4. Security and Compliance: Features like 256-bit SSL encryption and compliance with GDPR and CCPA ensure data security and privacy.
  5. Cost-Effectiveness: Provides various pricing plans, including free tiers and volume-based discounts, making it affordable for businesses of all sizes.

Which One Should You Go With?

Each of the phone validation APIs discussed offers unique features and pricing structures, making them suitable for various business needs. Whether you prioritize carrier detection, global coverage, or cost-effectiveness, there's a solution that fits your requirements.

If you're looking for a reliable alternative, we recommend signing up with Abstract API. With its robust features, global coverage, and competitive pricing, Abstract API stands out as a top choice for businesses seeking efficient and secure phone validation services.

Nicolas Rios

Head of Product at Abstract API

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