# Signalmash, $19 monthly: Phone validation API

> Validate phone numbers, ensure compliance, and connect with the right people, all through a single, powerful lookup service.

Signalmash's Launch plan for the phone validation API costs $1.50 per 1,000 phones. We check each provider's docs for 9 fields. Signalmash's docs list 2: Type, Carrier.
We haven't run Signalmash through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
We rank 1,266 plans for phone validation APIs by price. Half the plans cost $3.55 or less per 1,000 phones. This plan costs less per 1,000 phones than 61% of the 1,266 plans.
[GuGuData's CNY 124 (about $19) monthly plan](https://datacircle.dev/validate-phone-apis/gugudata/cny-124-monthly/llms.txt) is the cheapest paid plan per 1,000 phones. GuGuData's CNY 124 (about $19) monthly plan charges nothing per call. You get as many phones as GuGuData's rate limit allows. [Neutrino API's On-Demand plan](https://datacircle.dev/validate-phone-apis/neutrino-api/pay-as-you-go-on-demand/llms.txt) costs the least for 10,000 phones a month: $0.80.
[Trestle](https://datacircle.dev/validate-phone-apis/trestle/top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api/llms.txt), [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt) and [Abstract API](https://datacircle.dev/validate-phone-apis/abstract-api/19-monthly-starter-5000-requests-month/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/signalmash/19-monthly
- [Phone validation API: the best of 50+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://signalmash.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `GET https://api.signalmash.com/getnumberdetails`
- API key: with the plan, on https://signalmash.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://doc.signalmash.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing#/Lookups/get_getnumberdetails
- Sold by: Signalmash (https://signalmash.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 22%
- Type: ✓
- Carrier: ✓

## Price

- $ per 1,000 phones: $1.50
- Per: call
- Billing: monthly
- $ a month: $19

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Fed DNC Lookup · Inbound CNAM query

## In their words

- Their pitch: Validate phone numbers, ensure compliance, and connect with the right people, all through a single, powerful lookup service.

## Data

- Countries: United States, Canada
- What it checks: numbering plan, carrier
- Keep data: no limit
- Use data: [...] you have signed an Number Portability Administration Center (NPAC) user agreement for acceptable use of data in all regions. (b) you access and/or use such Services solely for purposes of (i) routing, rating or billing telephone calls, or (ii) performing network maintenance in connection with the provision of telecommunications-related services.

## Plan

- Pay: $19

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: DID, lookupType "lrn"
- Method: GET
- Path: /getnumberdetails

## About the plan

- Plan: Launch
- Who can get it: anyone who signs up at portal.signalmash.com and completes its Know Your Customer (KYC) form

## The 3 fields the plan's answer can hold

LRN, carrier name, line type

## Signalmash's plans (4)

- [Signalmash, $19 monthly](https://datacircle.dev/validate-phone-apis/signalmash/19-monthly/llms.txt): $1.50 per 1,000, 22% complete
- [Signalmash, $119 monthly](https://datacircle.dev/validate-phone-apis/signalmash/119-monthly/llms.txt): $1.40 per 1,000, 22% complete
- [Signalmash, $1,019 monthly](https://datacircle.dev/validate-phone-apis/signalmash/1019-monthly/llms.txt): $1.30 per 1,000, 22% complete
- [Signalmash, contact us](https://datacircle.dev/validate-phone-apis/signalmash/contact-us/llms.txt): 22% complete

## Signalmash's calls (1)

- `GET /getnumberdetails`: [Signalmash, $19 monthly](https://datacircle.dev/validate-phone-apis/signalmash/19-monthly/llms.txt)

## Signalmash's APIs (1)

- [Signalmash: phone validation API pricing, 4 plans](https://datacircle.dev/validate-phone-apis/signalmash/19-monthly/llms.txt)

## Signalmash: phone validation API alternatives

- [ProWebLook, $15 pack](https://datacircle.dev/validate-phone-apis/proweblook/15-pack/llms.txt): $1.50 per 1,000, 67% complete, stored
- [ReefAPI, $15 monthly, Pro monthly, POST /phone-validate/v1/validate](https://datacircle.dev/validate-phone-apis/reefapi/15-monthly-pro-monthly-post-phone-validate-v1-validate/llms.txt): $1.50 per 1,000, 67% complete, stored
- [Telnyx, top-up from $10](https://datacircle.dev/validate-phone-apis/telnyx/top-up-from-10/llms.txt): $1.50 per 1,000, 78% complete, live
- [Xverify, $1,500 pack](https://datacircle.dev/validate-phone-apis/xverify/1500-pack/llms.txt): $1.50 per 1,000, 44% 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 2026-11-08.

- https://doc.signalmash.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://doc.signalmash.com/swagger-ui-init.js?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://signalmash.com/number-intelligence?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://signalmash.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://signalmash.com/sms-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://signalmash.com/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing