SOFTPHONEZHow bulk SMS works
From spreadsheet to sent in four steps.
Upload your contacts
Import a CSV of phone numbers, with an optional first-name column, or reuse a saved group.
Write with personalization
Compose your message and drop in a first-name token so every recipient gets a message addressed to them.
Send from your Twilio number
Messages go out through your own Twilio account at Twilio published rates, no markup from us.
Track delivery live
Watch per-recipient delivery status stream in, and manage opt-outs from the same dashboard.
What you get
Built for real campaigns, not just one-off texts.
First-name personalization
Merge tokens pull each contact’s name into the message automatically.
Per-recipient tracking
See delivered, failed, and opted-out for every number in a live campaign view.
Saved groups
Save contact lists and campaign groups so repeat sends take seconds.
Opt-out handling
STOP and unsubscribe requests are tracked so you stay compliant.
Sending compliantly (A2P 10DLC)
Deliverability depends on doing this right.
You are the sender of every message, so US business SMS needs your Twilio brand and campaign registered under A2P 10DLC (the carrier registration system run by The Campaign Registry). Unregistered traffic is filtered or blocked. You also need to message only contacts who opted in, honor STOP and opt-out requests promptly, and identify your business, which keeps you within TCPA, CTIA, and carrier rules. New to this? Our team can register your A2P 10DLC campaign for you, just ask for setup help.
Bulk SMS FAQ
Do I need A2P 10DLC to send bulk SMS from Twilio?
Yes. To send business SMS to US numbers reliably, your Twilio brand and campaign must be registered for A2P 10DLC, or carriers heavily filter the traffic. SoftPhonez can help you register.
How do I avoid getting my bulk SMS blocked?
Register A2P 10DLC, message only opted-in contacts, honor STOP requests, include your business name, avoid prohibited content and link shorteners, and keep a steady sending pace instead of large bursts.
Can I personalize bulk SMS with first names?
Yes. Upload a CSV with a first-name column and use a first-name token in your message, and each recipient gets a personalized version.
How do I track who received a bulk SMS?
Per-recipient delivery status streams into a live campaign dashboard, so you see delivered, failed, and opted-out at a glance.
Run your first bulk SMS campaign
Use the web dashboard today with your own Twilio number, or grab the Android app when it lands.