10 alternatives to 1s2u in 2026
By Wayne Hamadi, founder of Datacircle. Last updated: Other providers sell phone validation APIs like 1s2u's. Veriphone, 2Chat and HLR Lookup each cost $2.00 per 1,000 phones.
Phone validation API alternatives
On our 1s2u plan pages, we compare each 1s2u plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 phones first.
| Provider and plan | $ per 1,000 phones |
|---|
| Veriphone, $999 pack, 5,000,000 credits, GET /v3/verify, /v3/verify, full | $2.00 |
|---|
| 2Chat, $480 yearly, Basic Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number | $2.00 |
|---|
| HLR Lookup, £900 pack, 300,000 lookups, POST /apiv2/mnp, MNP-only lookup | $2.00 |
|---|
| NumRadar, €9 monthly, Starter, POST /validate | $2.03 |
|---|
| CallerAPI, $2,000 monthly, Enterprise transparency $2,000, GET /api/network-lookup/{phone} | $2.50 |
|---|
| Number Portability Lookup, top-up | $2.50 |
|---|
| MTS Exolve, top-up, Basic: 1-50,000 requests a month | $2.98 |
|---|
| Notificore, top-up from ₽150, Lookup in Russia, POST /rest/hlr/check | $2.98 |
|---|
| CheckThatPhone, $30 monthly | $3.00 |
|---|
| HLR Lookups, top-up from €22,500, 7.5M - 10M, POST /mnp-lookup | $3.38 |
|---|
Compare every phone validation API plan: Phone validation API pricing: free and cheapest plans compared
