# Telesign, free: Phone validation API

> Tap into the world’s largest, most comprehensive mobile identity dataset. With Phone ID you can verify user identities on a global scale, strengthen internal risk models, and optimize your messaging framework.

Telesign's phone validation API on its Free trial account plan. It costs $0.00 per 1,000 phones. It returns 5 of the 9 key fields we check: Number, Validity, Type, Carrier, Place.
We haven't run Telesign through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 888 plans for phone validation APIs by price. Half the plans cost $3.376 per 1,000 phones or less.
[Botoi's $199 monthly plan](https://datacircle.dev/validate-phone-apis/botoi/199-monthly/llms.txt) is the cheapest paid plan per 1,000 phones: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 phones a day.
[Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt), [Foxentry](https://datacircle.dev/validate-phone-apis/foxentry/top-up-pay-as-you-go-post-phone-validate-validate-phone-number-extended/llms.txt) and [HLR Lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-1-1m-post-hlr-lookup/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/telesign/free
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.telesign.com/pricing/identity-pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://rest-ww.telesign.com/v1/phoneid/{complete_phone_number}`
- API key: with the plan, on https://www.telesign.com/pricing/identity-pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://developer.telesign.com/enterprise/reference/submitphonenumberforidentity?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Telesign (https://www.telesign.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 56%
- Number: ✓
- Validity: ✓
- Type: ✓
- Carrier: ✓
- Place: ✓

## Price

- $ per 1,000 phones: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Send an SMS message · Send SMS verification code · Submit a phone number to evaluate · Get contact details

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Tap into the world’s largest, most comprehensive mobile identity dataset. With Phone ID you can verify user identities on a global scale, strengthen internal risk models, and optimize your messaging framework.

## Data

- Countries: Worldwide
- What it checks: numbering plan
- Keep data: no limit
- Use data: Client agrees to use the Self-Service Services solely for its own internal analysis to evaluate and determine the acceptability of the Self-Service Services and whether Client has an interest in obtaining, as appropriate, the Self Service. Services from Telesign for use by Client. Client is prohibited from using the Self-Service Services for any other purposes whatsoever (including any commercial purpose), until and unless Client Upgrades its account

## Plan

- Pay: $0
- You get: $5
- Enough for: about 454 calls

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: complete_phone_number, Content-Type header "application/json". Optional: account_lifecycle_event, external_id, originating_ip, addons, consent
- Method: POST
- Path: /v1/phoneid/{complete_phone_number}

## About the plan

- Plan: Free trial account
- Who can get it: anyone who signs up for a trial account (no credit card required), Phone ID runs on verified test phone numbers only

## The 32 fields the plan's answer can hold

reference ID, external ID, status code, status description, status updated on, city, state, ZIP code, metro code, county, country name, country ISO2 code, country ISO3 code, latitude, longitude, time zone name, time zone UTC offset minimum, time zone UTC offset maximum, original complete phone number, original country code, original phone number, cleansed country code, cleansed phone number, cleansed code, minimum length, maximum length, line type code, line type, blocked, block code, block description, carrier name

## Telesign's plans (4)

- [Telesign, free](https://datacircle.dev/validate-phone-apis/telesign/free/llms.txt): $0.00 per 1,000, 56% complete
- [Telesign, top-up](https://datacircle.dev/validate-phone-apis/telesign/top-up/llms.txt): $11.00 per 1,000, 56% complete
- [Telesign, contact us, All other phone attributes](https://datacircle.dev/validate-phone-apis/telesign/contact-us-all-other-phone-attributes/llms.txt): 78% complete
- [Telesign, contact us, Volume discounts](https://datacircle.dev/validate-phone-apis/telesign/contact-us-volume-discounts/llms.txt): 56% complete

## Telesign's calls (1)

- `POST /v1/phoneid/{complete_phone_number}`: [Telesign, free](https://datacircle.dev/validate-phone-apis/telesign/free/llms.txt)

## Telesign's APIs (1)

- [Telesign: phone validation API pricing, 4 plans](https://datacircle.dev/validate-phone-apis/telesign/free/llms.txt)

## Telesign: phone validation API alternatives

- [Veriphone, $129.90 yearly, Starter, GET /v3/verify, /v3/verify, full](https://datacircle.dev/validate-phone-apis/veriphone/129-90-yearly-starter-get-v3-verify-v3-verify-full/llms.txt): $10.825 per 1,000, 78% complete, live
- [ZelNum, $200 pack, Pay as you go, $200 top-up, POST /realtime/check/{series}, Viber Number Checker (realtime)](https://datacircle.dev/validate-phone-apis/zelnum/200-pack-pay-as-you-go-200-top-up-post-realtime-check-series-viber-number-checker-realtime/llms.txt): $10.909 per 1,000, 11% complete
- [Databar, $10,507 yearly](https://datacircle.dev/validate-phone-apis/databar/10507-yearly/llms.txt): $10.945 per 1,000, 33% complete
- [BlockRun, pay as you go, Enterprise](https://datacircle.dev/validate-phone-apis/blockrun/pay-as-you-go-enterprise/llms.txt): $11.00 per 1,000, 22% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-02.

- https://developer.telesign.com/enterprise/docs/phone-id-get-started?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://developer.telesign.com/enterprise/reference/submitphonenumberforidentity?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://support.telesign.com/s/article/How-does-my-Telesign-trial-account-work?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.telesign.com/acceptable-use-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.telesign.com/pricing/identity-pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.telesign.com/products/phone-id?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.telesign.com/telesign-terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing