# HLR Lookup, free: Cached phone validation API

> Checks formatting and network information without performing a live HLR lookup — useful for pre-flight checks before spending credits on a real lookup.

HLR Lookup's cached phone validation API on its 200 free credits plan. It costs $0.00 per 1,000 phones. It returns 5 of the 9 key fields we check: Number, Formats, Type, Carrier, Place.
You get 200 credits, which pay for HLR Lookup's other calls. This call costs none of them. HLR Lookup limits how many results you get, but doesn't say how many.
The cheapest of the 90 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-lookup/free
- [Best phone validation API in 2026](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.hlrlookup.com/pricing
- Its API docs: https://www.hlrlookup.com/docs/hlrlookup-docs.html#h-endpoints
- Sold by: HLR Lookup (https://www.hlrlookup.com)
- Checked: 2026-10-26

## In the answer

- Completeness: 56%
- Number: ✓
- Formats: ✓
- Type: ✓
- Carrier: ✓
- Place: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Checks formatting and network information without performing a live HLR lookup — useful for pre-flight checks before spending credits on a real lookup.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: any, its terms add "Our services are not intended to be used as the sole basis for any business decision"

## Plan

- Pay: $0
- You get: 200 credits

## Rate limit

- Concurrent: 210
- Batch: 80

## Speed

- Answer: in the call

## The call

- You send: telephone_number. Optional: input_format, output_format
- Method: POST
- Path: /apiv2/validate

## About the plan

- Plan: 200 free credits
- Who can get it: new accounts with a business email address

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

error code, request ID, request parameters, credits charged, phone number, formatted number, line type, original carrier, original MCC-MNC, country, country ISO3 code, location, country calling code, lookup date

## HLR Lookup's plans (12)

- [HLR Lookup, free](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/free/llms.txt): $0.00 per 1,000, 56% complete, stored
- [HLR Lookup, £12.50 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/12-50-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £22.50 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/22-50-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £43 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/43-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £102.50 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/102-50-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £195 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/195-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £370 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/370-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £680 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/680-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £900 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/900-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £1,350 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/1350-pack/llms.txt): 56% complete, stored
- [HLR Lookup, £2,500 pack](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/2500-pack/llms.txt): 56% complete, stored
- [HLR Lookup, contact us](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/contact-us/llms.txt): 56% complete, stored

## HLR Lookup's calls for this API (1)

- `POST /apiv2/validate`: [HLR Lookup, free](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/free/llms.txt)

## HLR Lookup's APIs (2)

- [HLR Lookup: phone validation API pricing, 12 plans, POST /batches/{id}/sourcejson, Bulk uploads via API](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-batches-id-sourcejson/llms.txt)
- [HLR Lookup: phone validation API pricing, 12 plans, POST /batches/{id}/sourcejson, Bulk uploads via API, full](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-batches-id-sourcejson-bulk-uploads-via-api-full/llms.txt)
- [HLR Lookup: phone validation API pricing, 12 plans, POST /apiv2/hlr, Full HLR lookup](https://datacircle.dev/validate-phone-apis/hlr-lookup/free/llms.txt)
- [HLR Lookup: phone validation API pricing, 12 plans, POST /apiv2/hlr, Full HLR lookup, full](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-apiv2-hlr-full-hlr-lookup-full/llms.txt)
- [HLR Lookup: phone validation API pricing, 12 plans, POST /apiv2/mnp, MNP-only lookup](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-apiv2-mnp/llms.txt)
- [HLR Lookup: phone validation API pricing, 12 plans, POST /apiv2/mnp, MNP-only lookup, full](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-apiv2-mnp-mnp-only-lookup-full/llms.txt)
- [HLR Lookup: cached phone validation API pricing, 12 plans](https://datacircle.dev/cached-phone-validation-apis/hlr-lookup/free/llms.txt)

## HLR Lookup: cached phone validation API alternatives

- [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): $0.00 per 1,000, 67% complete, stored
- [Neutrino API, free](https://datacircle.dev/cached-phone-validation-apis/neutrino-api/free/llms.txt): $0.00 per 1,000, 67% complete, stored
- [seven.io, free](https://datacircle.dev/cached-phone-validation-apis/seven-io/free/llms.txt): $0.00 per 1,000, 56% complete, stored
- [Strale, free](https://datacircle.dev/cached-phone-validation-apis/strale/free/llms.txt): $0.00 per 1,000, 56% 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 2026-10-26.

- https://www.hlrlookup.com/
- https://www.hlrlookup.com/docs/hlrlookup-docs.html
- https://www.hlrlookup.com/frequently-asked-questions
- https://www.hlrlookup.com/hlr-api-v2.openapi.json
- https://www.hlrlookup.com/knowledge/charging
- https://www.hlrlookup.com/pricing
- https://www.hlrlookup.com/terms-of-service