Datacircle

7 Affiliate SMS alternatives in 2026

The best alternatives to Affiliate SMS for phone validation APIs: Trestle, Data247 and Abstract API, by our benchmark. Affiliate SMS's website is affiliate-sms.com.

Phone validation API alternatives

Trestle, Data247 and Abstract API are the best phone validation API providers in the Datacircle benchmark.

On our Affiliate SMS plan pages, we compare each Affiliate SMS plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 phones first.

Provider and plan$ per 1,000 phones
Abstract API, free$0.00
Accurate Append, free$0.00
Foxentry, free trial, POST /phone/validate, Validate phone number (basic)$0.00
HLR Lookups, free, 100 free lookups, POST /nt-lookups$0.00
Trestle, free trial, GET /3.0/phone_intel$0.00
Addressfinder, contact usnot published
CallerAPI, contact us, Enterprise transparency $40,000+, GET /api/network-lookup/{phone}not published

Compare every phone validation API plan: Phone validation API pricing: free and cheapest plans compared

Best GTM APIs