# Zadarma, top-up: Phone validation API

> HLR lookup is a service, which allows you to find out if the number is active and if it is in roaming, that will help you save money on calls on inactive numbers.

Zadarma's phone validation API on its HLR lookup plan, $7.00 per 1,000 phones. 5 of the 9 key fields: Number, Its check, Carrier, Porting and roaming, Place.
The median plan costs $3.332 per 1,000. This plan costs less than 26% of the 245 priced plans.

- This page: https://datacircle.dev/validate-phone-apis/zadarma/top-up
- Get it: https://zadarma.com/en/services/hlr/
- Its API docs: https://zadarma.com/en/support/api/#api_info_number_lookup
- Sold by: Zadarma (https://zadarma.com)
- Checked: 2026-10-21

## In the answer

- Completeness: 56%
- Number: ✓
- Its check: ✓
- Carrier: ✓
- Porting and roaming: ✓
- Place: ✓

## Price

- $ per 1,000: $7.00
- Billing: pay first

## Aggregators

- Aggregators: none

## Charges

- Per: result
- Also pays for: from the same budget: the services and goods on zadarma.com

## In their words

- Their pitch: HLR lookup is a service, which allows you to find out if the number is active and if it is in roaming, that will help you save money on calls on inactive numbers.

## Data

- Keep data: no limit
- Use data: You lie under obligation to use the Services in correspondence with given «Terms of Use», agreement for commercial users and requirements of correspondent legislation. [...] You lie under obligation to use Zadarma Services only for legitimate purposes. In this content You have no right (a) to intercept or keep track, break informational exchange or make changes if You are not side of this exchange, (b) spread any mass commercial information or messages, robocalling, auto-dialling, forbidden by acting legislation, (c) use Your Account or Zadarma services rascally, (d) subject to any other user handling of insulating material, indecent or other undesired character or harmful for children and also (e) in other way break the Terms of Use of Zadarma. [...] Routing of traffic from the telephone network to Zadarma network is prohibited, as any other reselling of services without agreement with the sales department.

## Rate limit

- Per second: 1.67

## Speed

- Answer: in the call or by webhook

## The call

- You send: numbers
- Method: POST
- Path: /v1/info/number_lookup/

## About the plan

- Plan: HLR lookup
- Who can get it: anyone above the legal age limit, outside Iran, the Democratic People's Republic of Korea, the Republic of Belarus, Russia and the non-government controlled areas of Ukraine

## The 10 fields the plan's answer can hold

status, status description, phone number, mobile country code, mobile network code, country, carrier, ported, roaming, error description

## Zadarma's plans (1)

- [Zadarma, top-up](https://datacircle.dev/validate-phone-apis/zadarma/top-up/llms.txt): $7.00 per 1,000, 56% complete

## Zadarma's calls (1)

- `POST /v1/info/number_lookup/`: [Zadarma, top-up](https://datacircle.dev/validate-phone-apis/zadarma/top-up/llms.txt)

## Similar plans of other providers

- [Captain Verify, €465 pack, 75,000 Mobile Verifications, on demand, GET /verify](https://datacircle.dev/validate-phone-apis/captain-verify/465-pack-75000-mobile-verifications-on-demand-get-verify/llms.txt): $6.977 per 1,000, 67% complete, live
- [Neutrino API, pay as you go, 0-1M](https://datacircle.dev/validate-phone-apis/neutrino-api/pay-as-you-go/llms.txt): $7.00 per 1,000, 78% complete, live
- [ClearoutPhone, $35 pack, One Time 5,000 credits, POST /v1/phonenumber/validate](https://datacircle.dev/validate-phone-apis/clearoutphone/35-pack-one-time-5000-credits-post-v1-phonenumber-validate/llms.txt): $7.00 per 1,000, 56% complete
- [Xverify, $70 pack](https://datacircle.dev/validate-phone-apis/xverify/70-pack/llms.txt): $7.00 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 2026-10-21.

- https://zadarma.com/en/legal/terms-of-use/
- https://zadarma.com/en/services/hlr/
- https://zadarma.com/en/support/api/
- https://zadarma.com/en/support/api/#api_info_number_lookup
- https://zadarma.com/en/support/api/#other_methods_number_lookup