# HLR Lookups, free, 100 free lookups, POST /nt-lookup: Cached phone validation API

> Your solution for number portability lookups, phone number verification, and mobile network detection.

HLR Lookups's cached phone validation API on its 100 free lookups plan. It costs $0.00 per 1,000 phones. It returns 6 of the 9 key fields we check: Number, Validity, Type, Carrier, Porting and roaming, Place.
The cheapest of the 78 plans we rank by price is [seven.io, free](https://datacircle.dev/cached-phone-validation-apis/seven-io/free/llms.txt), at $0.00 per 1,000.

- This page: https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/free-100-free-lookups-post-nt-lookup
- [Best phone validation API in 2026](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.hlr-lookups.com/en/pricing
- Its API docs: https://www.hlr-lookups.com/en/api-docs#post-nt-lookup
- Sold by: HLR Lookups (https://www.hlr-lookups.com)
- Checked: 2026-10-25

## In the answer

- Completeness: 67%
- Number: ✓
- Validity: ✓
- Type: ✓
- Carrier: ✓
- Porting and roaming: ✓
- Place: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Per: call
- Also pays for: from the same budget: HLR Lookup (synchronous) · HLR Lookup (asynchronous) · MNP Lookup (synchronous) · MNP Lookup (asynchronous) · NT Lookup (asynchronous)

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Your solution for number portability lookups, phone number verification, and mobile network detection.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: You will only use the Software and the Service for lawful purposes, and in compliance with all applicable laws including, without limitation, copyright, trademark, patent, intellectual property, obscenity and defamation laws [...], You will not use the Software and the Service for chain letters, junk mail, advertising, spamming in any form or type, You will not use the Software and the Service to compete against VMG, You understand and agree that you will not rent, lease, distribute, sell, resell, assign, or otherwise transfer rights to the VMG software and service, You agree not to publish or disclose to third parties any evaluation of VMG software without VMG's prior written consent

## Plan

- Pay: $0
- You get: 100 requests
- Enough for: 100 calls, once

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: number. Optional: route, storage
- Method: POST
- Path: /nt-lookup

## About the plan

- Plan: 100 free lookups
- Who can get it: new accounts

## The 22 fields the plan's answer can hold

lookup ID, phone number, number type, query status, valid, invalid reason, possibly ported, vanity number, qualifies for HLR lookup, MCC-MNC, MCC, MNC, original carrier, original country, original country code, regions, time zones, info text, cost, timestamp, storage, route

## HLR Lookups's plans (10)

- [HLR Lookups, free, 100 free lookups, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/free-100-free-lookups-post-nt-lookup/llms.txt): $0.00 per 1,000, 67% complete, stored
- [HLR Lookups, top-up, 10M (or more), POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/top-up-10m-or-more-post-nt-lookup/llms.txt): $1.013 per 1,000, 67% complete, stored
- [HLR Lookups, top-up, 7.5M - 10M, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/top-up-7-5m-10m-post-nt-lookup/llms.txt): $1.35 per 1,000, 67% complete, stored
- [HLR Lookups, top-up, 5M - 7.5M, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/top-up-5m-7-5m-post-nt-lookup/llms.txt): $1.688 per 1,000, 67% complete, stored
- [HLR Lookups, top-up, 2.5M - 5M, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/top-up-2-5m-5m-post-nt-lookup/llms.txt): $2.026 per 1,000, 67% complete, stored
- [HLR Lookups, top-up, 1M - 2.5M, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/top-up-1m-2-5m-post-nt-lookup/llms.txt): $2.476 per 1,000, 67% complete, stored
- [HLR Lookups, top-up, 1 - 1M, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/top-up-1-1m-post-nt-lookup/llms.txt): $2.813 per 1,000, 67% complete, stored
- [HLR Lookups, contact us, Postpaid account, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/contact-us-postpaid-account-post-nt-lookup/llms.txt): 67% complete, stored
- [HLR Lookups, contact us, Reseller Program, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/contact-us-reseller-program-post-nt-lookup/llms.txt): 67% complete, stored
- [HLR Lookups, contact us, We Price Match, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/contact-us-we-price-match-post-nt-lookup/llms.txt): 67% complete, stored

## HLR Lookups's calls (2)

- `POST /nt-lookups`: [HLR Lookups, free, 100 free lookups, POST /nt-lookups](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/free-100-free-lookups-post-nt-lookups/llms.txt)
- `POST /nt-lookup`: [HLR Lookups, free, 100 free lookups, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/free-100-free-lookups-post-nt-lookup/llms.txt)

## HLR Lookups's APIs (2)

- [HLR Lookups: phone validation API pricing, 10 plans, POST /hlr-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-hlr-lookups/llms.txt)
- [HLR Lookups: phone validation API pricing, 10 plans, POST /hlr-lookup](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-hlr-lookup/llms.txt)
- [HLR Lookups: phone validation API pricing, 10 plans, POST /mnp-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-mnp-lookups/llms.txt)
- [HLR Lookups: phone validation API pricing, 10 plans, POST /mnp-lookup](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-mnp-lookup/llms.txt)
- [HLR Lookups: cached phone validation API pricing, 10 plans, POST /nt-lookup](https://datacircle.dev/cached-phone-validation-apis/hlr-lookups/free-100-free-lookups-post-nt-lookup/llms.txt)

## HLR Lookups: cached phone validation API alternatives

- [BigDataCloud, $9.95 monthly, Bronze, GET /data/phone-number-validate-by-ip](https://datacircle.dev/cached-phone-validation-apis/bigdatacloud/9-95-monthly-bronze-get-data-phone-number-validate-by-ip/llms.txt): $0.995 per 1,000, 56% complete, stored
- [NumLookupAPI, $49.99 monthly, Pro, GET /v1/validate/{number}](https://datacircle.dev/cached-phone-validation-apis/numlookupapi/49-99-monthly-pro-get-v1-validate-number/llms.txt): $0.9998 per 1,000, 67% complete, stored
- [APIVerve, $99.99 monthly](https://datacircle.dev/cached-phone-validation-apis/apiverve/99-99-monthly/llms.txt): $0.9999 per 1,000, 78% complete, stored
- [APILayer, $629.99 yearly](https://datacircle.dev/cached-phone-validation-apis/apilayer/629-99-yearly/llms.txt): $1.05 per 1,000, 67% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-25.

- https://www.hlr-lookups.com/en/api-docs
- https://www.hlr-lookups.com/en/pricing
- https://www.hlr-lookups.com/en/terms-of-service