# Decision Telecom, free: Phone validation API

> Decision Telecom’s HLR Lookup API allows a company to obtain information about a subscriber by his/her phone number.

Decision Telecom's phone validation API on its Free trial plan. It costs $0.00 per 1,000 phones. It returns 5 of the 9 key fields we check: Number, Validity, Type, Carrier, Porting and roaming.
Decision Telecom limits how many calls you get but gives no number.
We haven't run Decision Telecom 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/decision-telecom/free
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://decisiontele.com/prices/spain.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://web.it-decision.com/v1/api/hlr`
- API key: with the plan, on https://decisiontele.com/prices/spain.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://sergii-1.gitbook.io/eng-api/hlr-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing#send-hlr
- Sold by: Decision Telecom (https://decisiontele.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 56%
- Number: ✓
- Validity: ✓
- Type: ✓
- Carrier: ✓
- Porting and roaming: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Decision Telecom’s HLR Lookup API allows a company to obtain information about a subscriber by his/her phone number.

## Data

- Freshness: live
- Countries: Worldwide
- What it checks: carrier, line in service
- Keep data: no limit
- Use data: Use DecisionTelecom Service only for internal purposes without providing any received information to Third Parties

## Plan

- Pay: $0

## Speed

- Answer: by polling

## The call

- You send: phones, Content-Type header "application/json"
- Method: POST
- Path: /v1/api/hlr

## About the plan

- Plan: Free trial
- Who can get it: anyone of legal age to form a binding contract, through a test account its managers create on request

## The 11 fields the plan's answer can hold

request ID, number, MCC, MNC, carrier, ported, line type, subscriber present, status, status message, error code

## Decision Telecom's plans (3)

- [Decision Telecom, free](https://datacircle.dev/validate-phone-apis/decision-telecom/free/llms.txt): $0.00 per 1,000, 56% complete, live
- [Decision Telecom, top-up](https://datacircle.dev/validate-phone-apis/decision-telecom/top-up/llms.txt): $1.283 per 1,000, 56% complete, live
- [Decision Telecom, contact us](https://datacircle.dev/validate-phone-apis/decision-telecom/contact-us/llms.txt): 56% complete, live

## Decision Telecom's calls (1)

- `POST /v1/api/hlr`: [Decision Telecom, free](https://datacircle.dev/validate-phone-apis/decision-telecom/free/llms.txt)

## Decision Telecom's APIs (1)

- [Decision Telecom: phone validation API pricing, 3 plans](https://datacircle.dev/validate-phone-apis/decision-telecom/free/llms.txt)

## Decision Telecom: phone validation API alternatives

- [探数数据 tanshuapi, CNY 160 pack](https://datacircle.dev/validate-phone-apis/tanshuapi/cny-160-pack/llms.txt): $1.196 per 1,000, 44% complete, live
- [D7 Networks, top-up](https://datacircle.dev/validate-phone-apis/d7-networks/top-up/llms.txt): $1.20 per 1,000, 67% complete, live
- [2Chat, $120 monthly, Pro Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number, full](https://datacircle.dev/validate-phone-apis/2chat/120-monthly-pro-plan-get-open-whatsapp-check-number-your-number-number-to-check-check-number-full/llms.txt): $1.20 per 1,000, 33% complete, live
- [NumRadar, €29 monthly, Growth, POST /validate](https://datacircle.dev/validate-phone-apis/numradar/29-monthly-growth-post-validate/llms.txt): $1.305 per 1,000, 44% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

- https://decisiontele.com/faq/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://decisiontele.com/prices/spain.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://decisiontele.com/products/hlr-lookup/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://decisiontele.com/terms-and-conditions.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://sergii-1.gitbook.io/eng-api/hlr-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing