numlookupapi.com
numlookupapi.com: A low-cost API for developers needing validation and phone-number enrichment. Ranked #6 of 25 in Phone Number Validation Software by our editors (8.7/10); pricing: Free plan; best for low-cost developers using common SDKs.
At a glance
- Editor score8.7 / 10
- PricingFree plan
- Best forLow-cost developers using common SDKs
- Free planYes
- Paid from$9.99/mo
- Facts checked20 Sep 2026
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
Our verdict on numlookupapi.com
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, formatting, country, location, carrier, and line-type information, including mobile and landline classifications. It is available through API and web interfaces, with API-key authentication through a query parameter or request header.
Pricing is structured for small projects through larger request volumes. The Free plan costs $0 per month and includes 100 requests, one API key, and 10 requests per minute. Basic costs $9.99 per month for 5,000 requests, one API key, no rate limit, and e-mail support. Pro costs $49.99 per month for 50,000 requests, two API keys, sandbox API keys, no rate limit, e-mail support, and team management. Scale costs $109.99 per month for 250,000 requests, five API keys, sandbox API keys, no rate limit, tailored support, and team management. Custom includes custom requests and API keys alongside sandbox API keys, no rate limit, tailored support, and team management.
The developer ecosystem is a clear strength for teams working with common web and server-side languages. Official SDKs are available for JavaScript, Ruby, PHP, and Python, while a Postman collection supports API exploration and request workflows. The product remains focused on phone-data validation rather than a wider communications suite, so it fits applications that need lookup and enrichment through an API. Choose it for straightforward validation, carrier identification, and line-type data at a low entry price. Consider another option if your team needs broader language coverage or a less API-centered workflow.
Your product? Our editors can test numlookupapi.com in depth and publish a review, labelled as paid · from $149/mo →
numlookupapi.com pricing
All 5 numlookupapi.com plans and prices →
numlookupapi.com fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $9.99/mo |
| Validation modes | Not verified |
| Line type data | Yes |
| Carrier data | Yes |
| Reachability data | Yes |
| Bulk validation | Not verified |
| Monthly lookup limit | 5000 lookups/mo |
| Deployment | Cloud |
| Platforms | Web |
| Support | |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 5 integrations: JavaScript, Ruby, PHP, Python, Postman |
| Pricing | Free plan (source) |
| Website | numlookupapi.com |
| Facts checked | 20 Sep 2026 |
numlookupapi.com integrations
numlookupapi.com lists 5 integrations on its own site.
- JavaScript
- Ruby
- PHP
- Python
- Postman
Alternatives to numlookupapi.com
- Neutrino Phone ValidateA budget-friendly API for high-volume phone validation and number enrichment.9.4
- Abstract Phone Validation APIA data-rich phone validation API with broad integrations and a free starting point.9.2
- VeriphoneA practical validator for API workflows, bulk CSV checks, and carrier data.9.0
See all numlookupapi.com alternatives →
numlookupapi.com vs the competition
- numlookupapi.com vs Neutrino Phone Validate
- numlookupapi.com vs Abstract Phone Validation API
- numlookupapi.com vs Veriphone
- numlookupapi.com vs PhoneValidationAPI
- numlookupapi.com vs Twilio Lookup
- numlookupapi.com vs APIFreaks Phone Validation API
Compare numlookupapi.com with any tool side by side →
Used numlookupapi.com? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used numlookupapi.com for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
numlookupapi.com is listed in our Phone Number Validation Software directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/numlookupapi-com/"><img src="https://www.itechguides.com/best/badge/numlookupapi-com.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update