Head-to-head · Phone Number Validation Software
PhoneValidationAPI vs numlookupapi.com
PhoneValidationAPI leads on 1 check, numlookupapi.com on 1, and 5 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scorePhoneValidationAPI · 8.9/10
- Lowest starting pricenumlookupapi.com · $9.99/mo
- Free planboth
- Most featuresPhoneValidationAPI · 4 of 4
PhoneValidationAPI scores higher on our rubric for phone number validation software: 8.9 against 8.7 out of 10; our editors rank them #4 and #6.
numlookupapi.com is cheaper to start at $9.99/mo against $14.99/mo. PhoneValidationAPI leads on monthly lookup limit: 6000 lookups/mo versus 5000 lookups/mo.
PhoneValidationAPI is the better fit for API users needing diagnostics and batch checks. numlookupapi.com is the better fit for low-cost developers using common SDKs.
- PhoneValidationAPI fits best
API users needing diagnostics and batch checks
- numlookupapi.com fits best
Low-cost developers using common SDKs
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Side by side
| Feature | PhoneValidationAPI 8.9/10 Visit ↗ | numlookupapi.com 8.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.9 | 8.7 |
| Ranking | #4 in Phone Number Validation Software | #6 in Phone Number Validation Software |
| Best for | API users needing diagnostics and batch checks | Low-cost developers using common SDKs |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $14.99/mo | $9.99/mo (best) |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | Email, Docs | |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features PhoneValidationAPI 4/4 · numlookupapi.com 3/4 | ||
| Line type data | ✓ | ✓ |
| Carrier data | ✓ | ✓ |
| Reachability data | ✓ | ✓ |
| Bulk validation | ✓ (best) | Not checked yet |
| Specs | ||
| Validation modes | Api | Not checked yet |
| Monthly lookup limit | 6000 lookups/mo (best) | 5000 lookups/mo |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | PhoneValidationAPI is a hosted REST service for developers who need to validate phone numbers without sending SMS or placing calls. It accepts E.164 and national-format input, then returns validity, country and region data, line type,… Read the review → |
numlookupapi.com is a JSON REST API for validating and enriching phone numbers. It suits developers and businesses that need to check validity and retrieve phone-number details inside applications. The API returns validity status,… Read the review → |
Strengths and trade-offs
PhoneValidationAPI — where it wins
- Free plan includes validation, line-type, carrier, and disposable checks
- Confidence labels and per-check diagnostics support clearer decisions
- Professional supports asynchronous batches up to 10,000 numbers
Where it doesn't
- HLR lookups are unavailable for now
- Carrier identification is available only where data is available
- The service does not send SMS or place calls for validation
numlookupapi.com — where it wins
- Free plan with 100 requests per month
- Carrier, line-type, country, location, and format data
- Official JavaScript, Ruby, PHP, and Python SDKs
Where it doesn't
- Free plan is limited to 100 requests
- Basic includes only one API key
- Listed SDK support covers four programming languages
- PhoneValidationAPI8.9/10 · Free plan
A focused validation API with disposable detection, diagnostics, and a free plan.
Explore APIFull verdict → - numlookupapi.com8.7/10 · Free plan
A low-cost API for developers needing validation and phone-number enrichment.
Try numlookupapi.comFull verdict →
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- Veriphone vs numlookupapi.com
- PhoneValidationAPI vs Twilio Lookup
- PhoneValidationAPI vs APIFreaks Phone Validation API
All phone number validation software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






