Amazon Phone Number Validate vs Twilio Lookup
Amazon Phone Number Validate
docs.aws.amazon.com
Twilio Lookup
twilio.comSide by side
| Figure | Amazon Phone Number Validate | Twilio Lookup |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| API | Yes | Yes |
| Plans published | 1 | 8 |
| Spec score · Phone Number Validation Software | 7.7 (#10) | 7.6 (#13) |
| API access | The resource accepts a POST request at /v1/phone/number/validate. | Twilio provides a Lookup API and code examples using its helper libraries for Node.js, Python, C#, and Java. |
| Integrations | AWS documents using the API through the AWS CLI and SDKs, including SDKs for .NET, C++, Go, Java, JavaScript, Kotlin, PHP, Python, and Ruby. | Twilio lists Salesforce, Replit, and OpenAI among its integrations. |
| Purpose | The service checks whether a phone number is valid and returns information about it. | Twilio Lookup is a phone number intelligence API that formats, validates, and enriches phone numbers with carrier and risk data. |
Plans
Amazon Phone Number Validate
- Phone Number Validate$0.01, paid once
Twilio Lookup
- Formatting and validationFree
- Inbound caller identification$0.01, paid once
- Line Status$0.01, paid once
- Line type intelligence$0.01, paid once
- Reassigned number risk$0.02, paid once
- SMS Pumping Risk Score$0.03, paid once
- Identity match$0.10, paid once
- SIM swap and call forwardingPriced on request
In their own words
Amazon Phone Number Validate
Amazon Phone Number Validate has no write-up on Specifiction yet; its figures are above.
Twilio Lookup
Twilio Lookup is an API for formatting and validating phone numbers and enriching them with carrier and risk information. It can screen numbers before actions such as sending an OTP, creating an account, or processing a high-risk action. Available signals include line type and status, identity match, SIM swap detection, call forwarding, reassigned-number checks, caller name, and SMS pumping risk scoring. Lookup can also return active consent information alongside number details to help improve contact rates and message deliverability. Twilio provides API examples using helper libraries for Node.js, Python, C#, and Java, and lists Salesforce, Replit, and OpenAI as integrations. Twilio describes pairing Lookup with Verify to reduce fraud risk and improve OTP conversions. Lookup provides passive risk intelligence; it is not a standalone challenge-response authentication mechanism. Caller name is available only in the US, and call forwarding status only in the UK. Formatting and validation are free; other listed capabilities have per-request or per-query charges, while SIM swap and call-forwarding pricing is based on carrier access rates and enterprise agreements.