Which lookup should I use?

Standard, unless the serving network changes what you do next. List cleaning, format checks, country routing, line-type filtering — standard covers it. SMS cost optimization, caller-ID reputation, SIM-swap screening — that's where the current carrier earns its 10 credits.

Does the API work in bulk?

Yes, two ways: call the API in parallel — it scales to thousands of requests per second — or upload a CSV of up to millions of numbers and download the results with carrier data filled in. No code required for the CSV route.

Is there a free tier?

Yes — 1,000 free credits a month, covering standard carrier lookups with full carrier and line-type data, no credit card required. Current Carrier Lookup runs on paid plans and credit packs.

I just want to look up one number — do I need the API?

No — use the free carrier lookup tool at veriphone.io/carrier-lookup. It runs the same standard lookup in your browser, no account needed.

Carrier Lookup API

Carrier lookup, by API
— original or current

One GET request returns the carrier, line type, and country of any number in 243 countries. Add one parameter to resolve the network serving it today from portability registries.

Get 1,000 Free Credits View API Docs →

Two lookups

Standard for scale. Current for truth.

Most teams validate everything with standard lookups, then run Current Carrier Lookup on the subset where the serving network matters.

Standard carrier lookup

The carrier a number was assigned to, from official numbering plans — included in every validation at no extra cost. Fast enough to check numbers as users type them, cheap enough to run on lists of millions.

$1.30 to $0.25 per 1,000 on plans · packs from $0.20

Current Carrier Lookup

The network actually serving the number today, resolved live from national portability registries — with the original carrier and a ported flag in the same response. If it can't be resolved, you pay the standard rate.

$13.00 to $2.50 per 1,000 on plans · packs from $2.00

Learn more

Integration

A GET request, not an SDK

# Standard — the assigned carrier, included in every validation
$ curl "https://api.veriphone.io/v3/verify?phone=%2B14155552671&key=YOUR_API_KEY"

# Current — the serving network, one extra parameter
$ curl "https://api.veriphone.io/v3/verify?phone=%2B14155552671&mode=current&key=YOUR_API_KEY"

Read the docs

FAQ

Frequently Asked Questions

Wire it up in minutes

1,000 free credits a month. No credit card required.

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Carrier lookup, by API — original or current