Datacircle
Phone validation API

Trestle, $10 pack

Trestle's sitellms.txt
$15.00per 1,000 phonesThe median plan costs $3.313 per 1,000. This plan costs less than 17% of the 97 priced plans.
Plan: Self-Serve, pay as you go one of Trestle's 3 plans
Call: GET /3.0/phone_intel Trestle's only call

About this item

  • Stored. You may get Trestle's answer from an earlier check of the number. Trestle's pages don't say how old its answers are.
  • You buy a pack of credits, then spend them on calls. You pay $10 for $10 of credit, enough for about 666 calls. Unused credit expires: after one year if not used.
  • One call. You send phone, phone.country_hint, add_ons, source_id to GET /3.0/phone_intel. The call returns whether the number is valid.
  • Who can get it: companies, with a business email address. Keep data: the agreement's term, for internal business purposes. Use data: with conditions.

Compare with similar plans

Other providers' plans with the closest prices per 1,000. Like this plan, each is a stored copy.

This planTrestle, $10 packMelissa, $4.97 packNumLookupAPI, $9.99 monthlyVeriphone, $24 packAPILayer, $14.99 monthly
$ per 1,000$15.00$0.00$1.998$2.40$2.998
Billingpay firstpay firstmonthlypay firstmonthly
Pay$10$4.97$9.99$24$14.99
Enough forabout 666 calls100 calls a month5,000 calls a month10,000 calls5,000 calls a month
Freshnessstoredstoredstoredstoredstored
Who can get itcompanies, with a business email addressanyone who passes Melissa's KYC/AML identity checkanyoneanyoneanyone

Sources

From each provider's own pricing page and docs. We read this row from these pages on 2026-10-14.

  1. docs.trestleiq.com/api-reference/phone-validation-api
  2. docs.trestleiq.com/openapi/phone-validation.openapi.yaml
  3. trestleiq.com/knowledge-base/developer-portal-wallet-frequently-asked-questions/
  4. trestleiq.com/knowledge-base/getting-started-with-trestles-developer-portal-wallet/
  5. trestleiq.com/knowledge-base/how-is-trestles-phone-activity-score-calculated/
  6. trestleiq.com/knowledge-base/what-are-the-various-sources-of-trestles-identity-data/
  7. trestleiq.com/knowledge-base/what-is-our-global-phone-validation-coverage/
  8. trestleiq.com/knowledge-base/what-is-the-default-and-max-qps-supported/
  9. trestleiq.com/knowledge-base/what-queries-are-billable/
  10. trestleiq.com/knowledge-base/why-wont-my-email-work-to-signup-for-trestle/
  11. trestleiq.com/phone-validation-api/
  12. trestleiq.com/pricing/
  13. trestleiq.com/terms-of-service/

Product details

We list each column of this plan's row on the sheet that has a value.

Price
$ per 1,000$15.00
Billingpay first
Charges
Repeat freenever
Percall
Extra fieldslitigator risk: +$5.00
Not found
$ per 1,000$15.00
In their words
Their pitchPhone Validation API allows businesses to identify disconnected phone numbers, line type, carrier lookup, and more for all phone validation needs.
Data
Freshnessstored
Keep datathe agreement's term, for internal business purposes
Use dataidentity or lead verification, caller identification, routing, prioritization, scrubbing lists for outbound dialing, marketing only in response to an inbound request, not resold or made available to others, no FCRA purpose, not cached to avoid queries, merged only tagged as Trestle's
Plan
Pay$10
You get$10
Enough forabout 666 calls
Expiresafter one year if not used
Rate limit
Per second10
Batch1
Speed
Answerin the call
The call
You sendphone, phone.country_hint, add_ons, source_id
MethodGET
Path/3.0/phone_intel
About the plan
PlanSelf-Serve, pay as you go
Who can get itcompanies, with a business email address
The 13 fields in the plan's answer

phone ID, phone number, valid, activity score, country calling code, country code, country, line type, carrier, prepaid, error code, error message, warnings