# Telnyx Numbers: Identity — Documentation Index
> Identity documentation within the Numbers section of the Telnyx developer docs (https://developers.telnyx.com).
> Root index: https://developers.telnyx.com/llms.txt · Numbers index: https://telnyx.com/llms/numbers.txt · Full content for this subsection: https://telnyx.com/llms/numbers/identity-full.txt

## Number Lookup

- [Number lookup using Telnyx APIs](https://developers.telnyx.com/docs/identity/number-lookup/quickstart.md): Lookup a phone number and retrieve information. Start building on Telnyx today.

## Verify

- [Telnyx verify quickstart](https://developers.telnyx.com/docs/identity/verify/quickstart.md): Telnyx Verify helps to deliver a 2FA token to any mobile number and
- [DTMF confirmation](https://developers.telnyx.com/docs/identity/verify/dtmf-confirm.md): Verify phone number ownership with a single keypress. No codes - press 1 to confirm.
- [Custom templates](https://developers.telnyx.com/docs/identity/verify/custom-templates.md): Create and manage custom verification message templates for branded OTP communications with Telnyx Verify.
- [Webhooks](https://developers.telnyx.com/docs/identity/verify/receiving-webhooks.md): Receive and verify Telnyx Verify webhooks for SMS, voice, WhatsApp, and PSD2 verifications. Includes payload structure, signing, and retry behavior.
- [Security Best Practices](https://developers.telnyx.com/docs/identity/verify/security-best-practices.md): Protect your verification flows from fraud, abuse, and common attack vectors with these security best practices for Telnyx Verify.
- [Rate Limiting & Fraud Prevention](https://developers.telnyx.com/docs/identity/verify/rate-limiting-fraud-prevention.md): Protect Telnyx Verify integrations from SMS pumping and toll fraud. Add server-side rate limits, geo-fencing, anomaly detection, and cost controls.

## API Reference (Identity)

### Number Lookup

- [Lookup phone number data](https://developers.telnyx.com/api-reference/number-lookup/lookup-phone-number-data.md): Returns information about the provided phone number.

### Verify

- [Trigger Call verification](https://developers.telnyx.com/api-reference/verify/trigger-call-verification.md)
- [Trigger Flash call verification](https://developers.telnyx.com/api-reference/verify/trigger-flash-call-verification.md)
- [Trigger SMS verification](https://developers.telnyx.com/api-reference/verify/trigger-sms-verification.md)
- [Trigger WhatsApp verification](https://developers.telnyx.com/api-reference/verify/trigger-whatsapp-verification.md)
- [Retrieve verification](https://developers.telnyx.com/api-reference/verify/retrieve-verification.md)
- [Verify verification code by ID](https://developers.telnyx.com/api-reference/verify/verify-verification-code-by-id.md)
- [List verifications by phone number](https://developers.telnyx.com/api-reference/verify/list-verifications-by-phone-number.md)
- [Verify verification code by phone number](https://developers.telnyx.com/api-reference/verify/verify-verification-code-by-phone-number.md)
- [List all Verify profiles](https://developers.telnyx.com/api-reference/verify/list-all-verify-profiles.md): Gets a paginated list of Verify profiles.
- [Create a Verify profile](https://developers.telnyx.com/api-reference/verify/create-a-verify-profile.md): Creates a new Verify profile to associate verifications with.
- [Retrieve Verify profile](https://developers.telnyx.com/api-reference/verify/retrieve-verify-profile.md): Gets a single Verify profile.
- [Update Verify profile](https://developers.telnyx.com/api-reference/verify/update-verify-profile.md)
- [Delete Verify profile](https://developers.telnyx.com/api-reference/verify/delete-verify-profile.md)
- [Retrieve Verify profile message templates](https://developers.telnyx.com/api-reference/verify/retrieve-verify-profile-message-templates.md): List all Verify profile message templates.
- [Create message template](https://developers.telnyx.com/api-reference/verify/create-message-template.md): Create a new Verify profile message template.
- [Update message template](https://developers.telnyx.com/api-reference/verify/update-message-template.md): Update an existing Verify profile message template.