# 4 SMSUp alternatives in 2026

Last updated: November 9, 2026.

The best alternatives to SMSUp for phone validation APIs: Trestle, Data247 and Abstract API, by our benchmark. SMSUp's website is smsup.es.

## Phone validation API alternatives

[Trestle](https://datacircle.dev/validate-phone-apis/trestle/free#top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api), [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone) and [Abstract API](https://datacircle.dev/validate-phone-apis/abstract-api/free#19-monthly-starter-5000-requests-month) are the best [phone validation API providers](https://datacircle.dev/best-phone-validation-api) in the Datacircle benchmark.

On our [SMSUp plan pages](https://datacircle.dev/validate-phone-apis/smsup/19-pack), we compare each SMSUp plan with other providers' plans. We list other providers' plans below.

- [CEQUENS, top-up, Usage-based, GET /discovery/hlr/v1/{number}](https://datacircle.dev/validate-phone-apis/cequens/free-trial-credits-get-discovery-hlr-v1-number#top-up-usage-based-get-discovery-hlr-v1-number): no price per 1,000 phones
- [Data247, $12 pack, Membership, GET /v3.0, Carrier247 (Carrier Type)](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-carrier247-carrier-type): no price per 1,000 phones
- [Tamz, R$100 pack](https://datacircle.dev/validate-phone-apis/tamz/free#r-100-pack): no price per 1,000 phones
- [tyntec, top-up, Pay per number check, GET /gnv](https://datacircle.dev/validate-phone-apis/tyntec/top-up-pay-per-number-check-get-gnv): no price per 1,000 phones

Compare every phone validation API plan: [Phone validation API pricing: free and cheapest plans compared](https://datacircle.dev/phone-validation-api-pricing)

## See also

- [CEQUENS alternatives](https://datacircle.dev/cequens-alternatives)
- [Data247 alternatives](https://datacircle.dev/data247-alternatives)
- [Tamz alternatives](https://datacircle.dev/tamz-alternatives)
- [tyntec alternatives](https://datacircle.dev/tyntec-alternatives)