Best Phone Number Validation Software in 2026
Updated
In short: Accessibility Test Framework for Android is ranked #1 of 26 as of 4 October 2026, ahead of Abstract Email Validation API and IPQualityScore Phone Validation API. The best-ranked option with a free plan is Abstract Email Validation API. The lowest first paid tier on this page is Neutrino Phone Validate at £8/mo.
Phone number validation software helps check numbers and review data associated with them. Compare bulk validation and validation modes, then consider carrier, line type, and reachability data alongside monthly lookup limits. Free-plan availability and paid-from pricing provide additional points for weighing the options. The ranking begins with Accessibility Test Framework for Android and Abstract Email Validation API, followed by APIFreaks Phone Validation API and HLR Lookup. IPQualityScore Phone Validation API, Melissa Global Phone Verification, PhoneValidationAPI, and Telesign Communications Platform are also among the first entries. Consider which validation approaches and data points matter for your contact workflows.
26 phone number validation software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
5 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Accessibility Test Framework for AndroidWindows · Mac · Linux · Android | Three bars | — | 4 of 6 | Free | 6.6 | |
| 2 | Abstract Email Validation APIWeb · API | Two bars | — | 1 of 6 | $17/mo | 6.4 | |
| 3 | IPQualityScore Phone Validation APIWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 4 | PhoneValidationAPIWeb · API | Two bars | — | 1 of 6 | $14.99/mo | 6.4 | |
| 5 | Neutrino Phone ValidateAPI | Two bars | — | 0 of 6 | £8/mo | 6.3 | |
| 6 | HLR LookupWeb · API | One bar | — | — | 1 of 6 | — | 5.5 |
| 7 | APIFreaks Phone Validation APIWeb · API | One bar | — | — | 1 of 6 | $41.67/mo | 5.4 |
| 8 | Melissa Global Phone VerificationWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 9 | Telesign Communications PlatformWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 10 | Acudo Phone ValidationWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 11 | FoneSwift Bulk Phone ValidatorWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 12 | libphonenumber-jsWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 13 | numlookupapi.comWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 14 | VeriphoneWeb | One bar | — | — | 1 of 6 | — | 5.2 |
| 15 | Vonage SMS APIWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | — | 5.2 |
| 16 | Google libphonenumberNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 17 | NumverifyNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 18 | OmaxTelecom Phone Validation APINo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 19 | Twilio LookupNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 20 | Byteplant Phone-ValidatorWeb · API | One bar | — | — | 1 of 6 | — | 5.0 |
| 21 | Loqate Phone ValidationWeb · API | One bar | — | — | 1 of 6 | — | 5.0 |
| 22 | ClearoutPhoneWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 23 | Data8 DuplicareWeb | One bar | — | — | 1 of 6 | — | 4.8 |
| 24 | DOTS Phone ExchangeWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 25 | Amazon Phone Number ValidateNo platforms listed | No signal | — | — | 0 of 6 | — | 4.7 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which phone number validation software is ranked first on Freedom251?
Accessibility Test Framework for Android is ranked #1 of 26 with a score of 6.6. Abstract Email Validation API is second and IPQualityScore Phone Validation API third.
How many of these have a free plan?
5 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Neutrino Phone Validate has the lowest first paid tier we found: £8/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.