veriastra_
Phone Validation API

Phone Number Validation API

Validate phone numbers in real time — confirm they're active, classify line type, estimate the carrier, and normalize to the E.164 standard for US and international numbers.

veriastra — sample200 OK
$ veriastra phone (415) 555-2671
statusvalid
e164+14155552671
line_typemobile or landline
locationSan Francisco, CA
timezoneAmerica/Los_Angeles
1 credit
carrier, line type, rate centre and spam signal in the one call
Cached
repeat lookups served from our store
200+
Countries Covered
Try it free first: Free Phone Number Lookup

Check any US phone number's line type and carrier in seconds. No signup needed.

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Complete Phone Number Validation

Line status, line type, carrier estimate, and E.164 formatting in a single lookup

Real-time validation & line status

Confirm whether a number is active, disconnected, or invalid instantly.

Line type detection

Distinguish mobile, landline, and VOIP numbers before you dial or text.

Carrier estimate

Return a best-effort carrier and network-type estimate for the number.

E.164 formatting

Normalize and validate numbers to the E.164 international standard.

US geographic data

Resolve US state and region from the area code.

Bulk & API

Validate one number or millions via API and CSV.

Phone Intelligence use cases

Common workflows teams run with this data.

Fewer bad orders

E-commerce checkout validation

Catch fake or invalid numbers at checkout before you fulfill an order.

  • Catch invalid numbers
  • Reduce failed contact
  • Protect revenue
Higher connect rate

Lead qualification

Verify numbers before they reach the dialer so agents only call real, reachable leads.

  • Filter dead numbers
  • Improve connect rates
  • Save agent time
Better delivery

SMS marketing readiness

Confirm line type and filter out landlines to keep campaigns deliverable.

  • Avoid landlines
  • Flag VOIP
  • Improve deliverability

Start using Phone Intelligence today

One API, universal credits, and 200 free credits a month. Live in about five minutes.