2) Amazon Pinpoint Phone Number Validation

Amazon Pinpoint Phone Number Validation is a service that helps businesses ensure the accuracy and validity of phone numbers in their databases. It enhances communication efficiency by reducing the risk of errors and improving message deliverability.
API Features
- Identity Match: Confirms user identities by matching user-supplied data against authoritative sources to verify mobile number ownership.
- Line Type Intelligence: Identifies the carrier and phone line type, helping to mitigate fake accounts and improve message deliverability.
- SIM Swap Detection: Detects SIM swap activities to prevent fraud and account takeovers by providing timestamps and dates of SIM changes.
Amazon Pinpoint Phone Number Validation Pricing
- Monthly Targeted Audience (MTA): Charges are based on the number of unique endpoints targeted in a month. The first 5,000 endpoints are free, and $0.0012 per endpoint is charged after that.
- Events: Charges are based on the number of application events collected each month. The first 100,000,000 events are free, and $0.000001 per event is charged after that.
- Channels: Detailed pricing for various messaging channels is available on the AWS End User Messaging pricing page. In-app messaging includes 15,000 free API requests per month, with $0.00011 per request after that.
- Deliverability Dashboard: Fixed price of $1,250 per month includes monitoring for up to five domains and 25 predictive email placement tests. Additional domain monitoring costs $25 per domain per month, and additional predictive email placement tests cost $10 per test.
- Dedicated IP Addresses: Each dedicated IP address costs $24.95 per month. Prorated charges apply if the IP address is leased or released in the middle of a month.
3) Veriphone

Veriphone is a comprehensive phone number validation service that ensures the accuracy of phone numbers by identifying their type, location, and associated service provider. It helps businesses improve communication efficiency by validating and formatting phone numbers correctly.
API Features
- Global Coverage: Veriphone supports phone number validation for over 230 countries, ensuring comprehensive international reach.
- Real-Time Validation: Provides instant validation results, allowing businesses to verify phone numbers on-the-fly during user registration or data entry.
- Carrier Lookup: Identifies the mobile network operator associated with a phone number, aiding in targeted communication strategies and fraud prevention.
Veriphone Pricing
- STARTER: $6.99/month for 5,000 verifications and live-chat & email support.
- PROFESSIONAL: $29/month for 50,000 verifications and live-chat & email support.
- BUSINESS: $79/month for 250,000 verifications and live-chat & email support.
- ENTERPRISE: $199/month for 1 million verifications and phone, live-chat & email support.
- FREE Plan: 1,000 verifications per month with no credit card required.
4) NumLookup API

NumLookup API is a powerful real-time API that supports phone number validation, formatting, carrier lookup, and line type identification for phone numbers across 248 countries and territories. It ensures that numbers are valid, correctly formatted, and associated with the correct carrier and line type, while also offering bulk validation through CSV uploads and guaranteeing data privacy with end-to-end encryption.
API Features
- Bulk Validation: Validate large lists of phone numbers by uploading a CSV file, streamlining the process for extensive datasets.
- Secure: Ensures data privacy with end-to-end encryption and automatic deletion of validated phone numbers, maintaining compliance with data protection regulations.
- Integrations: Supports over 2000 integrations with tools like Zapier and Integromat, facilitating seamless incorporation into existing workflows.
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, 1 API key, no rate limit, and email support.
- Medium: Costs $44.99 per month and provides 65,000 requests, 2 API keys, sandbox API keys, no rate limit, email support, and team management.
- Large: Available for $89.99 per month, it includes 300,000 requests, 5 API keys, sandbox API keys, no rate limit, tailored support, team management, IP and URL whitelisting, SLA, and overages.
- Custom: Custom pricing with tailored requests, API keys, support, team management, IP and URL whitelisting, custom SLA, and overages. Contact support for details.
5) Trestle Phone Validation API

Trestle Phone Validation API offers a comprehensive solution for phone number lookup and validation, featuring global coverage, premium support, and unlimited concurrency for paid plans. It is designed to help users clean and enrich phone data efficiently.
API Features
- 100 Free Requests / Month: Users can make up to 100 API requests per month for free, ideal for hobby projects and initial stages of professional projects.
- Unlimited Concurrency: Paid plans include unlimited API connections, allowing multiple simultaneous requests without restrictions.
- Premium Support: Dedicated premium support ensures timely and effective assistance, meeting high service expectations.
Trestle Phone Validation API Pricing
- Self-Serve Pricing: $0.015 per query, offering basic validation and verification features, including carrier name, line type, and prepaid status identification.
- Enterprise Pricing: Custom pricing with volume discounts, featuring guided onboarding, dedicated technical account management, and custom payment options.
What to Consider When Selecting a Twilio Lookup API Alternative?
- Global Coverage: Ensure the service supports phone number validation across multiple countries to reach a broader audience.
- Carrier and Line Type Identification: Identify the carrier and line type (e.g., mobile, landline, VoIP) to improve message deliverability and reduce fraud.
- Data Security: Look for services that offer strong data privacy and security measures, such as end-to-end encryption and compliance with regulations like GDPR and CCPA.
- Real-Time Validation: Opt for APIs that provide instant validation results to verify phone numbers on-the-fly during user registration or data entry.
- Ease of Integration: Choose a service that integrates seamlessly with your existing systems and platforms, offering support for various programming languages and tools.
Which One Should You Go With?
Each of the phone validation services discussed offers unique features and pricing plans, making them suitable for various business needs. Whether you prioritize global coverage, real-time validation, or data security, there is a solution that fits your requirements.
If you're looking for a reliable alternative, we recommend signing up with Abstract API. With its comprehensive features, ease of integration, and strong security measures, Abstract API stands out as a robust choice for phone number validation.