SMSBOX — cloud-based platform for two-way communication

Receive SMS online in Belgium — without your own mobile

Receiving SMS online at SMSBOX works via a virtual Belgian number, your own SIM card (SIM hosting) or our shortcode. Incoming messages appear in your dashboard in real time and can be forwarded to a webhook or an email address — two-way communication without a physical device.

SMSBOX — receiving SMS over the internet

Which option suits you?

The four ways to receive SMS differ in what they require and how you pay for them. In all four cases incoming messages arrive in the same dashboard in real time and are forwarded the same way — to a webhook, an email address or a mobile number.

Option When to choose it What you need Cost model
Shared number with keyword To get started, to test, or for low volumes Nothing but a free account From 0.25 credit per incoming message
Dedicated virtual number When the number has to be exclusively yours A request with us; we link it to your account Monthly fee per number, receiving included
SIM hosting To keep using your existing number, e.g. for MFA or M2M Your own SIM card, hosted with us Monthly hosting fee, receiving included
Shortcode For campaigns, polls and opt-in flows over a short number Nothing — our shared shortcode is ready in every account Receiving included; you pay credits for what you send

Shared number with keyword

Every SMSBOX account includes a shared number on which you receive messages with your own keyword. Your customers send that keyword followed by their message: anything starting with your keyword lands in your inbox. You do not request a number and pay no fixed cost.

  • Included in every account — nothing to apply for
  • You choose your own keyword
  • Incoming messages in your dashboard in real time
  • Forwarding to a webhook, e-mail address or mobile number
  • No fixed cost — from 0.25 credit per incoming message
Create a free account
SMSBOX virtual number

Virtual mobile number

We supply virtual mobile numbers in Belgium and internationally, for both receiving and sending SMS messages. A dedicated number belongs exclusively to your organisation: you get the whole number to yourself, with no keyword in front. Our numbers are hosted directly with the operators.

  • We link the number to your account
  • Incoming messages in your dashboard in real time
  • Forwarding to email, URL (webhook) or API
  • Auto-responders on incoming messages
  • Use as sender on outgoing SMS
  • Two-way communication (sending + receiving)
All about the virtual number View rates

SIM hosting — your number online 24/7

Link your own SIM card to your SMSBOX account. Your SIM stays online day and night over the internet and is reachable through our dashboard and the API. You get the same functionality as the SMS gateway, but all traffic runs via your own number. You only pay a monthly hosting fee.

Ideal for multi-factor authentication (MFA) with Microsoft 365, Azure, Google and Amazon, and for machine-to-machine (M2M) communication such as alarm systems and transport logistics.

More info & rates
SMSBOX SIM hosting

Shortcode — short and recognizable

SMSBOX has its own shared shortcode — a shortened number (typically 4 to 6 digits) that is easy to remember and looks professional in your communication. The shortcode is immediately available as a sender for your campaigns; there is nothing to request.

Ideal for campaigns, polls and opt-in flows. Your customers reply directly to the shortcode and the message lands straight in your SMSBOX dashboard or, via webhook, in your own system.

  • Shared shortcode available immediately — nothing to request
  • Launch campaigns and receive replies faster
  • Replies in your dashboard in real time
  • Webhook forwarding to your application
  • A professional look in your communication
Prohibited: contests and prize draws are not allowed over the shortcode.
More about our shortcode

Forwarding and automating incoming SMS

Webhook to your software

Every incoming message is posted over HTTPS to your own URL, with sender, timestamp, message and keyword — ready for automatic processing.

Forwarding to email or mobile

Have incoming messages forwarded automatically to an email address, or via auto-forward to a mobile number from your phone book.

Auto-responder

Set an automatic reply to incoming messages — handy for opt-in confirmations and outside office hours.

Receiving your first SMS in 4 steps

  1. Create an account — create a free SMSBOX account, no credit card required.
  2. Pick a number — start on the shared number with your own keyword, or activate a dedicated virtual number, SIM hosting or our shortcode.
  3. Set up forwarding — choose where incoming messages should land: a webhook URL, an email address or a mobile number from your phonebook.
  4. Test and receive — send a test message to the number yourself; it appears in your dashboard and in your own system in real time.
Create a free account View rates

What does receiving SMS cost?

For the sender an SMS to you is never free, but on your side the cost sits in the number, not in the message. With a dedicated virtual number, SIM hosting or our shortcode you pay the monthly fee for that number and receiving itself is included. You only spend credits on the messages you send back.

Prefer to try without a fixed cost? Then work on the shared number with your own keyword: it comes with every free account and costs from 0.25 credit per incoming message. The exact rates per number type are listed on the pricing page.

0,25 Credit per incoming message on the shared number
Real time Incoming messages in your dashboard and webhook
24/7 Your hosted SIM card online, at night as well
4–6 Digits in our shortcode — short and recognisable

Need to receive verification SMS?

Do you want to verify accounts without giving away your private number? With your own virtual number you receive verification codes securely online — more reliable than public disposable-number sites, where anyone can read along.

More about SMS verification Virtual number Is receiving for free possible?

Why SMSBOX for inbound SMS?

Belgian virtual numbers, hosted directly with the operators
Incoming messages visible in your dashboard in real time
Forwarding to a webhook, an email address or a mobile number
Auto-responder on incoming messages
Two-way communication: receive and send on the same number
Shared shortcode available right away — nothing to request
No physical device or extra operator subscription needed
The same dashboard and REST API as for outbound SMS

Applications

Transport: communication with drivers
Machine-to-machine: alarm systems
MFA: receiving two-factor authentication
Campaigns: opt-in via shortcode
Customer service: two-way communication
Polls and registrations

Frequently asked questions

With SMSBOX you receive SMS entirely online: with a virtual number, via SIM hosting (your own SIM card hosted with us) or via our shortcode. Incoming messages appear in your dashboard in real time and can be forwarded automatically.
Public "receive free SMS" sites use shared disposable numbers on which anyone can read your messages — unsafe for verifications and accounts. With SMSBOX you create a free account and receive messages privately via your own keyword on the shared number, from 0.25 credit per incoming message.
Yes: to your own software via an HTTPS webhook (with sender, timestamp, message and keyword), to an e-mail address, or via auto-forward to a mobile number from your phone book. You can also set up an auto-responder that automatically replies to incoming messages.
A virtual SMS number (e.g. +32460xxxxxx) lets you receive messages without a physical SIM card. Incoming messages appear in your dashboard in real time and can be forwarded to a URL (webhook) or e-mail address for two-way communication.
A shortcode is a shortened phone number (4–6 digits) that is easy to remember. Customers send a keyword to the shortcode to join a campaign, vote or sign up. SMSBOX has its own shortcode.
The cost sits in the number, not in the message. With a dedicated virtual number, SIM hosting or our shortcode you pay the monthly fee for that number and receiving is included; you only spend credits on what you send back. On the shared number with your own keyword you pay from 0.25 credit per incoming message.
Yes. A virtual number and a hosted SIM work both ways: you use the number as the sender on outgoing messages, so the recipient can reply directly and the exchange stays in a single conversation.
No. With a virtual number or our shortcode you receive entirely online, without hardware. If you do want to keep using your existing number, you host your own SIM card with us and that number stays online 24/7 through the dashboard and API.
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