https://sms.to/hlr-lookup-api/
HLR & MNP Lookup API - SMS.To
Feb 9, 2026 - Know if a number works before you send HLR and MNP Lookup API for smarter routing and lower SMS costs Clean your lists, route every SMS to the right network,...
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https://bsg.world/mnp-lookup
MNP Lookup — Accurate Number Portability Detection by BSG AI CPaaS
Identify the real mobile operator behind any number with MNP Lookup. Route traffic efficiently, reduce delivery errors, and cut messaging costs worldwide.
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