HLR Lookups pricing and alternatives: cached phone validation API, POST /nt-lookup

HLR Lookups's site llms.txt Best phone validation API in 2026

67% complete: 6 of the 9 key fields we checkSee the 9 fields

$0.00per 1,000 phonesThe cheapest of the 78 plans we rank by price is seven.io, free, at $0.00 per 1,000.

Plan: 100 free lookups one of HLR Lookups's 10 plans

Call: POST /nt-lookup one of HLR Lookups's 2 calls

API: Cached phone validation API one of HLR Lookups's 2 APIs

About this item

Stored. HLR Lookups may skip the carrier and answer from data it keeps. HLR Lookups doesn't say how old the data is.
6 of the 9 key fields we check. Number, Validity, Type, Carrier, Porting and roaming, Place.
Nothing to pay. You get 100 requests once.
One call. You send number to POST /nt-lookup. You can also send route and storage. The call returns whether the number is valid.
Who can get it: new accounts. Keep data: no limit. Use data: with conditions.

HLR Lookups: cached phone validation API alternatives

The table starts with HLR Lookups's cheapest paid plan. Next come plans from other providers with the price per 1,000 phones closest to HLR Lookups's. Each plan in the table gives stored data.

	HLR Lookups, top-up, 10M (or more), POST /nt-lookup	BigDataCloud, $9.95 monthly, Bronze, GET /data/phone-number-validate-by-ip	NumLookupAPI, $49.99 monthly, Pro, GET /v1/validate/{number}	APIVerve, $99.99 monthly	APILayer, $629.99 yearly
$ per 1,000	$1.013	$0.995	$0.9998	$0.9999	$1.05
Completeness	67%	56%	67%	78%	67%
Billing	pay first	monthly	monthly	monthly	yearly
Pay	any amount	$9.95	$49.99	$99.99	$629.99
Enough for	as many as you pay for	10,000 calls a month	50,000 calls a month	100,000 calls a month	50,000 calls a month
Freshness	stored	stored	stored	stored	stored
Who can get it	volume of 10M or more lookups (an individual over 18 or with parental consent, or a business entity)	anyone with an account, giving true and complete information about themselves, their business and their contact details	anyone	anyone 13 or over (under 18 only with the permission of a parent or legal guardian)	anyone

Cached phone validation API pricing: plans compared

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.

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

Number
Formats, not in the answer
Validity
Type
Carrier
Porting and roaming
Place
Risk, not in the answer
Owner, not in the answer

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