2) Twilio Lookup API

The Twilio Lookup API is designed to provide detailed information about phone numbers, including carrier data and caller name. It helps businesses validate phone numbers and enhance their communication strategies by ensuring accurate and up-to-date information.
API Features
- Carrier Information Lookup: This feature allows users to retrieve the carrier or network operator associated with a phone number, aiding in efficient call or message routing.
- Caller Name Lookup: This feature provides the name of the person or business associated with a phone number, enhancing user experience by displaying the caller's name.
- Phone Number Type Detection: This feature determines the type of phone number, such as mobile, landline, VoIP, toll-free, or premium-rate, helping in categorizing and applying appropriate business logic.
Twilio Lookup API Pricing
- Base Pricing: $0.05 per successful verification plus standard channel fees.
- Volume Pricing: Custom pricing available for volume-based discounts, requiring contact with sales.
3) Veriphone

Veriphone is a robust phone number validation service that provides real-time intelligence to enhance security, improve conversions, and optimize message deliverability for businesses worldwide.
API Features
- Identity Match: Confirms user identities by matching user-supplied data with authoritative sources to prevent bots and false account creation.
- Call Forwarding: Provides real-time access to the call forwarding status of mobile numbers to detect voice channel compromise and at-risk numbers.
- SMS Pumping Risk Score: Utilizes machine learning to identify and flag phone numbers involved in SMS Pumping Fraud.
Veriphone Pricing
- STARTER: $6.99/month for 5,000 verifications per month with live-chat and email support.
- PROFESSIONAL: $29/month for 50,000 verifications per month with live-chat and email support.
- BUSINESS: $79/month for 250,000 verifications per month with live-chat and email support.
- ENTERPRISE: $199/month for 1 million verifications per month with phone, live-chat, and email support.
- FREE Plan: 1,000 verifications per month, free forever with no credit card required.
4) Plivo Verify API

The Plivo Verify API is a comprehensive solution for businesses to authenticate users and secure transactions by sending verification codes via SMS or voice calls. It ensures seamless integration and reliable delivery, enhancing user trust and reducing fraud.
API Features
- Two-Factor Authentication: Enhances security by sending verification codes via SMS or voice calls to authenticate users.
- Global Reach: Supports phone number verification in over 190 countries, ensuring broad international coverage.
- Customizable Message Templates: Allows businesses to create and use personalized message templates for verification, improving user engagement.
Plivo Verify API Pricing
- Base Pricing: $0 for OTP Verification and Fraud Shield costs.
- Channel Pricing: Custom pricing based on the destination country, with SMS starting at $0.0055 per SMS, Voice at $0.0100 per minute, and WhatsApp at $0.0143 per conversation.
- Volume Pricing: Custom pricing available for high-volume usage, requiring contact with sales for details.
- Number Rentals and Registration: Zero charges for number rentals and registration.
- Additional Features: Includes pre-registered numbers, carrier-approved message templates, and built-in SMS pumping fraud control.
5) NumLookup API

NumLookup API offers a reliable solution for businesses to validate phone numbers and retrieve detailed information, including carrier data and caller identity, ensuring accurate and efficient communication strategies.
API Features
- Real-Time Carrier Lookup: Provides instant access to carrier information, ensuring accurate routing and efficient communication.
- Caller Identity Verification: Retrieves the name associated with a phone number, enhancing trust and reducing fraud.
- Phone Number Type Detection: Identifies the type of phone number, such as mobile, landline, or VoIP, to apply appropriate business logic.
NumLookup API Pricing
- Free: Offers 100 requests per month with a limit of 10 requests per minute and includes 1 API key.
- Small: Priced at $9.99 per month, this plan includes 7,000 requests with no rate limit and email support.
- Medium: Costs $44.99 per month and provides 65,000 requests, 2 API keys, sandbox API keys, and team management features.
- Large: Available for $89.99 per month, it includes 300,000 requests, 5 API keys, tailored support, and additional security features like IP and URL whitelisting.
- Custom: Pricing is not public. Contact their support for more info.
What to Consider When Selecting a NeutrinoAPI Alternative?
- Global Coverage: Ensure the API supports phone number validation across multiple countries to cater to a diverse customer base.
- Carrier and Line Type Identification: Look for features that identify the carrier and type of phone number (e.g., mobile, landline, VoIP) to optimize communication strategies.
- Data Privacy Compliance: Verify that the service complies with privacy regulations like GDPR and CCPA to protect user data and avoid legal issues.
- Integration Capabilities: Check if the API can integrate with various platforms and tools (e.g., Zapier, Salesforce) to streamline workflows and enhance functionality.
- Scalability and Performance: Assess the API's ability to handle high volumes of requests with low latency to ensure reliable and efficient operations.
Which One Should You Go With?
Each of the phone validation APIs discussed offers unique features and pricing plans, making them suitable for various business needs. Whether you prioritize global coverage, carrier identification, or data privacy compliance, there's an option that fits your requirements.
If you're looking for a reliable alternative, we recommend signing up with Abstract API. With its robust features, including fake number detection and support for over 190 countries, Abstract API ensures high-quality data and seamless integration. Sign up today to experience the benefits firsthand.