221+ destinations, real-time delivery receipts, sender ID management, and SMS Fraud Watch monitoring your account automatically — the same infrastructure our own platform sends on.
Bind directly over SMPP for high-volume sending, or use our simple HTTP API for smaller integrations — your account works with both.
Know exactly when a message is delivered, failed, or pending — DLRs flow back to your SMPP connection or webhook in real time.
Register alphanumeric sender IDs, set per-destination-country overrides, and control your sender ID policy — open, log-only, or strict approval.
Automatic monitoring for volume spikes, off-hours sending shifts, and high-risk destination hits — running on every account, no setup required.
A reply of STOP or UNSUBSCRIBE is suppressed automatically for that sender, scoped to your account — real compliance infrastructure, not a manual list.
Top up and send — no invoicing delays. The same wallet covers voice too if you use both, or keep them separate — your choice.
Create a free wholesale account — no cost, no commitment to sign up.
Quick verification, typically same-day.
Top up prepaid — pay for what you send, nothing more.
Connect via SMPP credentials or your API key — messages flow immediately.
SMPP is a persistent binding protocol built for high-volume senders (SMSCs, existing telecom platforms); the REST API is a simpler HTTP integration for sending from a normal application. Both use the same underlying vendor pool and pricing.
Yes — inbound messages to a number on your account are delivered to you in real time, including STOP/opt-out replies for A2P traffic.
Real delivery receipts are returned as the destination network confirms them — not a simulated "sent" status — so you know definitively whether a message reached the handset.
A failed delivery is reported back via the delivery receipt with the real failure reason where the destination network provides one — you're not billed as if it succeeded.
Yes — alphanumeric sender IDs can be registered on your account, with per-country overrides for the markets that require a specific pre-registered ID. See A2P Messaging for the full compliance picture.
General SMS termination and A2P (Application-to-Person) messaging run on the same account and rates — A2P is a compliance and sender-ID layer on top, not a separate price list.
See live rates for your destinations, or register free and get your wholesale account approved today.
Sending OTPs, alerts, or marketing campaigns to consumers? That's Application-to-Person messaging — see our dedicated A2P page for sender registration and compliance details.
A2P Messaging →Want to verify a route before committing real traffic? 6X Route Inspector independently audits sender-ID delivery and message quality on any vendor's SMPP route — even one outside 6X.
See Route Inspector →Outgrowing a shared vendor pool? 6X Softswitch gives you your own dedicated IP and isolated vendor connections — voice and SMS — with flat monthly rent instead of per-minute/per-message billing.
See 6X Softswitch →