Phone Intelligence API

Know if a number is real, and reachable.

Send a phone number in any format. Get E.164 formatting, country and region metadata, line type, and VoIP and burner flags — fast enough for inline signup checks.

POST api.tracenow.io/phone

$ curl -X POST https://api.tracenow.io/phone \

-H "Authorization: Bearer tn_live_xxxx" \

-d '{"number": "+14155552671"}'

{

"number": "+14155552671",

"valid": true,

"line_type": "mobile",

"risk": {

"voip": false,

"burner": false

"country": "United States",

"duration_ms": 4

}

Use cases

Know if a number is real before you send.

Validate before you send an SMS

Confirm a number is well-formed and valid for its country before you send an OTP or SMS. Stop burning spend on syntactically dead numbers.

Flag VoIP and burner numbers

Catch disposable and VoIP numbers used in fraud and bonus abuse, with a daily-refreshed burner-prefix list behind a single flag.

Classify line type fast

Mobile, landline, VoIP, and burner classification from libphonenumber plus a daily-refreshed disposable-prefix list — no external lookup required.

Normalize and enrich at scale

E.164, local and international formatting plus country and region metadata clean and standardize numbers across your whole dataset.

Pricing

Simple, volume-based pricing.

Every field included on every plan. Start free, scale when you need to.

10,000

calls / month

$39$31/mo

per month, billed annually

Per call: $0.0039
Overage: $0.008 / call