# Melrose Labs, contact us: Phone validation API

> Mobile and fixed-line telephone numbers can be looked-up using the API in order to determine the country and network for the user's home network and where they are currently located (if not currently on their home network).

Melrose Labs's phone validation API on its "Volume or pre-purchase pricing, agreed on order" plan. It returns 3 of the 9 key fields we check: Number, Carrier, Place.
We haven't run Melrose Labs through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
Melrose Labs gives this plan's price on request. We rank 768 plans for phone validation APIs by price. Half the plans cost $3.60 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/melrose-labs/contact-us
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://melroselabs.com/services/identity-and-location/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `GET https://api.melroselabs.com/location/telno/{telephoneno}`
- API key: with the plan, on https://melroselabs.com/services/identity-and-location/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://developers.melroselabs.com/reference/get_telno-telephoneno?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Melrose Labs (https://melroselabs.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 33%
- Number: ✓
- Carrier: ✓
- Place: ✓

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## In their words

- Their pitch: Mobile and fixed-line telephone numbers can be looked-up using the API in order to determine the country and network for the user's home network and where they are currently located (if not currently on their home network).

## Data

- Freshness: live
- What it checks: numbering plan, line in service
- Keep data: no API terms
- Use data: no API terms

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: telephoneno
- Method: GET
- Path: /telno/{telephoneno}

## About the plan

- Plan: Volume or pre-purchase pricing, agreed on order
- Who can get it: commercial customers acting in a business capacity (its terms: the Service is sold only to them, as opposed to private individuals acting as consumers)

## The 18 fields the plan's answer can hold

phone number, country calling code, network destination code, subscriber number, country name, country code, continent, continent code, network name, network MCC-MNC, home network country name, home network country code, home network continent, home network continent code, current network country name, current network country code, current network continent, current network continent code

## Melrose Labs's plans (1)

- [Melrose Labs, contact us](https://datacircle.dev/validate-phone-apis/melrose-labs/contact-us/llms.txt): 33% complete, live

## Melrose Labs's calls (1)

- `GET /telno/{telephoneno}`: [Melrose Labs, contact us](https://datacircle.dev/validate-phone-apis/melrose-labs/contact-us/llms.txt)

## Melrose Labs's APIs (1)

- [Melrose Labs: phone validation API pricing, 1 plan](https://datacircle.dev/validate-phone-apis/melrose-labs/contact-us/llms.txt)

## Melrose Labs: phone validation API alternatives

- [Vonage, contact us, Specific pricing by country, POST /requests, Current Carrier insight](https://datacircle.dev/validate-phone-apis/vonage/contact-us/llms.txt): 33% complete, live
- [XConnect, contact us, Contact sales, Live Status](https://datacircle.dev/validate-phone-apis/xconnect/contact-us-contact-sales-live-status/llms.txt): 33% complete, live
- [2Chat, contact us, Enterprise Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number](https://datacircle.dev/validate-phone-apis/2chat/contact-us-enterprise-plan-get-open-whatsapp-check-number-your-number-number-to-check-check-number/llms.txt): 33% complete, live
- [CEQUENS, contact us, Custom quote, GET /discovery/hlr/v1/{number}](https://datacircle.dev/validate-phone-apis/cequens/contact-us-custom-quote-get-discovery-hlr-v1-number/llms.txt): 33% 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://developers.melroselabs.com/reference/get_telno-telephoneno.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://developers.melroselabs.com/reference/getting-started-5?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://melroselabs.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://melroselabs.com/glossary/number-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://melroselabs.com/legal?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing