# GatewayAPI, top-up: Phone validation API

> Use our Number Lookup service to test availability before SMS broadcasts.

GatewayAPI's phone validation API on its Standard plan. It costs $4.501 per 1,000 phones. It returns 3 of the 9 key fields we check: Type, Carrier, Porting and roaming.
€4.00 per 1,000 phones is $4.501 at the European Central Bank's rate of $1.1253 for €1.
We haven't run GatewayAPI through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
Half of the 888 plans we rank by price cost $3.376 per 1,000 phones or less. This plan costs less per 1,000 phones than 46% of the 888 plans.
[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/gatewayapi/top-up
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://gatewayapi.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://gatewayapi.com/rest/hlr`
- API key: with the plan, on https://gatewayapi.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://gatewayapi.com/docs/apis/legacy/rest/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing#hlr-and-number-lookup
- Sold by: GatewayAPI (https://gatewayapi.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 33%
- Type: ✓
- Carrier: ✓
- Porting and roaming: ✓

## Price

- $ per 1,000 phones: $4.501
- Per: call
- Billing: pay first

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Messaging API

## In their words

- Their pitch: Use our Number Lookup service to test availability before SMS broadcasts.

## Data

- Freshness: live
- Countries: Denmark
- What it checks: carrier, line in service
- Keep data: no API terms
- Use data: The Customer is granted a limited, non-exclusive right to use GatewayAPI and its Services, which can be revoked at any time and is valid only as long as the contractual relationship exists. [...] The Customer may not reverse-engineer, modify, sublicense or otherwise misuse the GatewayAPI Services without written permission from ONLINECITY.IO. [...] GatewayAPI may not be used for any illegal, pornographic, harmful, racist, harassing, violent, threatening or similar purpose or otherwise used to send viruses, spam or used to harm third parties.

## Rate limit

- Concurrent: 40

## Speed

- Answer: in the call

## The call

- You send: msisdns
- Method: POST
- Path: /rest/hlr

## About the plan

- Plan: Standard
- Who can get it: selected customers: the number lookup is enabled on request through GatewayAPI's support chat

## The 14 fields the plan's answer can hold

current carrier name, current carrier MCC, current carrier MNC, network operator name, network operator MCC, network operator MNC, original carrier name, original carrier MCC, original carrier MNC, ported, line type, lookups, total cost, currency

## GatewayAPI's plans (2)

- [GatewayAPI, top-up](https://datacircle.dev/validate-phone-apis/gatewayapi/top-up/llms.txt): $4.501 per 1,000, 33% complete, live
- [GatewayAPI, contact us](https://datacircle.dev/validate-phone-apis/gatewayapi/contact-us/llms.txt): 33% complete, live

## GatewayAPI's calls (1)

- `POST /rest/hlr`: [GatewayAPI, top-up](https://datacircle.dev/validate-phone-apis/gatewayapi/top-up/llms.txt)

## GatewayAPI's APIs (1)

- [GatewayAPI: phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/gatewayapi/top-up/llms.txt)

## GatewayAPI: phone validation API alternatives

- [HLR Lookups, top-up from €10,000, 2.5M - 5M, POST /mnp-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-from-10000-2-5m-5m-post-mnp-lookups/llms.txt): $4.501 per 1,000, 44% complete, live
- [VerificarEmails, €2,000 pack, MNP: 500,000 Phones, GET /phonemnp/validate/single](https://datacircle.dev/validate-phone-apis/verificaremails/2000-pack-mnp-500000-phones-get-phonemnp-validate-single/llms.txt): $4.501 per 1,000, 67% complete, live
- [HLR Lookup, £680 pack, 200,000 lookups, POST /batches/{id}/sourcejson, Bulk uploads via API](https://datacircle.dev/validate-phone-apis/hlr-lookup/680-pack-200000-lookups-post-batches-id-sourcejson/llms.txt): $4.534 per 1,000, 89% complete, live
- [MobileValidate, top-up from $2,000, Top-up of $2,000 to $10,000, POST /jobs, Live network status (HLR) (bulk job)](https://datacircle.dev/validate-phone-apis/mobilevalidate/top-up-from-2000-top-up-of-2000-to-10000-post-jobs-live-network-status-hlr-bulk-job/llms.txt): $4.545 per 1,000, 56% 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 2026-11-04.

- https://gatewayapi.com/docs/apis/legacy/rest/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://gatewayapi.com/help-center/hlr-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://gatewayapi.com/help-center/payment-consumption?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://gatewayapi.com/help-center/terminology?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://gatewayapi.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://onlinecity.io/legal-documents/gatewayapi/terms-and-conditions?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing