Twilio Lookup alternatives
If you are weighing up a move off Twilio Lookup, here are the options that actually exist, what to check before you commit, and the cases where staying put is the right call.
Common reasons to shop around
- You only use Lookup, and the per-query pricing is hard to justify when most of your volume is basic format validation.
- You need email, IP or domain checks in the same call path and do not want a separate vendor for each.
- You want carrier and line-type answers labelled for what they are, rather than a single flat result.
What you can move to
Veriastra
details →Format, country, region, line type and assigned carrier from numbering-plan data we host, at one credit. Live network checks are a separate, clearly priced add-on.
Twilio Lookup
Still the obvious choice if you are already deep in Twilio for messaging and voice: one vendor, one bill, one support channel.
Telnyx
Comparable telecom-native lookup, usually cheaper per query than Twilio at volume.
libphonenumber
Free and open. If all you need is format validation and line-type hints from the numbering plan, you may not need a vendor at all. We use it too, under the parts we add.
Three things worth checking
Separate the cheap check from the expensive one
Format validation is nearly free. Live network queries are not. A provider that charges one rate for both is charging you the expensive rate for everything.
Assigned carrier or current carrier
Portability means these differ. A result that does not say which one it is telling you is not usable for routing decisions.
Coverage where your users are
Numbering-plan quality varies by country. Test with real numbers from your actual markets, not US examples.
What the switch actually involves
- 01
Add up what you are actually buying
Their packages price separately: line type at $0.008 a request, line status $0.007 down to $0.00385, caller name $0.01, identity match $0.10 (read from their pricing page, 6 Aug 2026). Formatting and validation are free. Total the ones you enable before comparing anything.
- 02
The endpoint
POST /api/lookup-phone returns format, validity, line type with its basis, carrier, rate centre and OCN, complaint history and your own suppression list in one call for one credit.
- 03
The field that changes name
Their `line_type_intelligence.type` becomes our `type`, and the carrier moves from `carrier.name` to `carrier`. We add the basis for the line type, because an allocation-based answer and a live one are not the same claim.
- 04
What you must keep them for
SIM swap, call forwarding and reassigned-number checks come from carrier relationships we do not have.
If your fraud rules use those, this is a partial move, not a replacement — and it may not be worth splitting the vendor.
- 05
Run both for a week
Line type is the field to diff. Where the two disagree, the number is usually ported, and /api/hlr will say which one is right today.
When to buy something else
If you need to send the SMS as well as validate the number, Twilio and Telnyx do both, and one vendor is simpler than two. We validate only — which is why the validation costs $0.0032 with the carrier, rate centre, complaint history and your suppression list included, against $0.008 for the line type alone.