# Telnyx, contact us: Phone validation API

> Use the Telnyx Number Lookup API to retrieve carrier, line type, and portability data for any phone number worldwide before routing or messaging.

Telnyx's phone validation API on its Volume rate plan.

- This page: https://datacircle.dev/validate-phone-apis/telnyx/contact-us
- Get it: https://telnyx.com/pricing/number-lookup
- Its API docs: https://developers.telnyx.com/api-reference/number-lookup/lookup-phone-number-data
- Sold by: Telnyx (https://telnyx.com)
- Checked: 2026-10-14

## Price

- Billing: contact

## In their words

- Their pitch: Use the Telnyx Number Lookup API to retrieve carrier, line type, and portability data for any phone number worldwide before routing or messaging.

## Data

- Freshness: live
- Keep data: no limit
- Use data: only to route, rate or bill telephone calls or to maintain a telecommunications network, under a signed NPAC user agreement, no right, title or interest in the data

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: phone_number, type
- Method: GET
- Path: /number_lookup/{phone_number}

## About the plan

- Plan: Volume rate
- Who can get it: organization owners of paid accounts (fraud review, card payment, verified mobile number, two-factor authentication, service address)

## The 16 fields in the plan's answer

country code, national format, E.164 format, LRN, ported, ported date, OCN, line type, SPID, SPID carrier name, SPID carrier type, alternate SPID, alternate SPID carrier name, alternate SPID carrier type, city, region

## Telnyx's plans (3)

- [Telnyx, $10 pack](https://datacircle.dev/validate-phone-apis/telnyx/10-pack/llms.txt): $1.50 per 1,000, live
- [Telnyx, $5,000 monthly](https://datacircle.dev/validate-phone-apis/telnyx/5000-monthly/llms.txt): $1.50 per 1,000, live
- [Telnyx, contact us](https://datacircle.dev/validate-phone-apis/telnyx/contact-us/llms.txt): live

## Telnyx's calls (1)

- `GET /number_lookup/{phone_number}`: [Telnyx, contact us](https://datacircle.dev/validate-phone-apis/telnyx/contact-us/llms.txt)

## Similar plans of other providers

- [Byteplant, contact us](https://datacircle.dev/validate-phone-apis/byteplant/contact-us/llms.txt): live
- [HLR Lookup, contact us](https://datacircle.dev/validate-phone-apis/hlr-lookup/contact-us/llms.txt): live
- [Neutrino API, contact us](https://datacircle.dev/validate-phone-apis/neutrino-api/contact-us/llms.txt): live
- [RealPhoneValidation, contact us, Enterprise & platform integrations](https://datacircle.dev/validate-phone-apis/realphonevalidation/contact-us-enterprise-platform-integrations/llms.txt): live

## Sources

From each provider's own pricing page and docs. We read this row from these pages on 2026-10-14.

- https://developers.telnyx.com/api-reference/number-lookup/lookup-phone-number-data
- https://developers.telnyx.com/docs/account-setup/account-upgrade
- https://developers.telnyx.com/docs/account-setup/levels-and-capabilities/paid
- https://developers.telnyx.com/docs/account-setup/levels-and-capabilities/trial
- https://developers.telnyx.com/docs/development/api-fundamentals/reliability/rate-limiting
- https://developers.telnyx.com/docs/identity/number-lookup
- https://developers.telnyx.com/docs/identity/number-lookup/quickstart
- https://support.telnyx.com/en/articles/4280500-billing-setup-billing-groups
- https://support.telnyx.com/en/articles/4366901-your-number-lookup-guide
- https://telnyx.com/pricing/number-lookup
- https://telnyx.com/products/number-lookup
- https://telnyx.com/terms-and-conditions-of-service