ipto vs NumVerify
NumVerify, an apilayer product, validates phone number format and returns country, location, carrier, and line-type data. Its free tier is capped at 100 requests a month total — no daily allowance, just a hard monthly ceiling — with paid plans starting at $14.99/month for 5,000 requests. The one field worth scrutinizing before relying on it: NumVerify markets a per-number "carrier" field, something ipto's Phone Number Checker deliberately does not return.
| Feature | ipto | NumVerify |
|---|---|---|
| API key required | Never | Yes, for every request |
| Free tier volume | 100 lookups/day (phone-specific budget), no monthly cap | 100 requests/month total |
| Cheapest paid tier | n/a (one free tier) | $14.99/month, 5,000 requests |
| Format/region/line-type validation | Yes, built in | Yes |
| Per-number "carrier" field | No — deliberately omitted, see FAQ | Yes, claimed |
| Country-level carrier/operator reference data | Yes, GET /v1/carriers by country | No |
| Country coverage claim | Any region our validator supports | 232 countries |
| Bulk lookup on free tier | 10 numbers/request | No dedicated bulk endpoint on lower tiers |
When NumVerify might fit better
- You specifically want a "carrier" field returned per lookup and are fine trusting a claimed real-time-style lookup for it — ipto declined to build this (see FAQ) rather than fake it from a static table.
- You want format, carrier, and location returned together from one long-running, well-established apilayer product.
When ipto fits better
- You'll run through NumVerify's 100-requests-per-month cap fast — ipto's phone-specific free budget is 100 lookups per day, not per month.
- You don't want to register for an API key before your first test request — ipto never requires one.
FAQ
Does ipto return a phone carrier field like NumVerify?
No, deliberately. A phone number doesn't encode which network it's currently on — only a live SIM lookup does, and numbers port between carriers constantly. ipto instead offers GET /v1/carriers, a country-level reference of network operators, rather than presenting a guessed carrier as fact.
How small is NumVerify's free tier?
100 requests total per month — not per day. ipto's phone-specific free budget resets daily at 100 lookups, on top of the site's general free-tier access.
Try it: curl https://ipto.to/v1/ip/8.8.8.8 · full API reference · all alternatives