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SMS gateway for Denmark (SMS gateway Danmark): send SMS from your own Danish number

Published and updated

Put a SIM from Denmark in an Android phone, install textbee, and every API call sends a real SMS from that +45 number. Recipients see a local number they can reply to. textbee is $9.99 a month for up to 5,000 messages, and the SIM keeps its own carrier plan.

How it works with a local SIM

  1. Put a Denmark SIM in an Android phone that stays on and on power, and install the textbee app on it.
  2. Register the device from the dashboard, which pairs the phone with your API key.
  3. Call POST /gateway/send-sms with the recipient in E.164 form. The phone sends it over the SIM and reports the result back.

What it costs at 1K, 5K and 25K messages

Monthly spend sending to Denmark, cloud providers and a local SIM against textbee plans
Provider1K messages5K messages25K messages
Twilio$60.35$59.20 messages, $1.15 number$297.15$296.00 messages, $1.15 number$1,481.15$1,480.00 messages, $1.15 number
Oister 12 hours of calls and 12 GB, free SMS and MMS ("Fri SMS/MMS")$10.53DKK 69 per month$10.53DKK 69 per month$10.53DKK 69 per month
textbee$9.99Pro plan, up to 5,000 messages included$9.99Pro plan, up to 5,000 messages included$29.99Scale plan, up to 25,000 messages included

textbee plans include the messages shown. There is no per message fee, number rental or carrier surcharge.

Provider prices checked on September 23, 2026

The textbee plan is the platform fee and the SIM plan is what the carrier charges for the messages, so a local setup costs the plan price plus the SIM.

Quickstart

send.sh
curl -X POST https://api.textbee.dev/api/v1/gateway/send-sms \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"recipients": ["+4534412345"], "message": "Your textbee code is 482913. It expires in 10 minutes."}'

On a dual SIM phone, pass simSubscriptionId to pick the SIM the message goes out on, as the send reference describes.

Format and check Denmark numbers

The API takes E.164, which for Denmark looks like +4534412345, so strip any local trunk prefix before you send.

Result

Enter a phone number above.

Use E.164 format (e.g. +15551234567) for textbee.dev API recipients.

Count segments

A message over one segment is sent as more than one SMS, so it draws more than once on the SIM plan.

Result

  • Characters: 54
  • Encoding: GSM-7
  • Segments: 1 SMS
  • 1 segment = 1 SMS

GSM-7: 160 chars per segment (153 for multi-part). Unicode/emoji: 70 chars per segment (67 for multi-part). Carriers may charge per segment.

Honest limits

One phone sends roughly 10 to 15 messages a minute, so a large blast takes time to drain. Carriers can filter bulk patterns on consumer SIMs. Marketing messages still need consent from the recipient under the local rules.

Frequently asked questions

Does textbee work in Denmark?

Yes. Any Android phone with a Danish SIM that can send SMS runs the textbee app. Your backend calls the REST API, and there is no carrier account to open first.

What number do recipients see?

The Danish mobile number of the SIM, and recipients can reply to it. Replies reach your code by webhook or GET /gateway/messages. A phone cannot present an alphanumeric sender name, so the number is what shows on the handset.

What does it cost to send SMS in Denmark?

textbee is one flat plan a month: Free for 300 messages, Pro $9.99 for up to 5,000, Scale $29.99 for up to 25,000. Oister lists 12 hours of calls and 12 GB with free SMS and MMS at DKK 69 a month. Twilio charges $0.0592 a message to Denmark.

How many messages can one phone send?

About 10 to 15 a minute. A consumer SIM can be filtered when the sending pattern looks like bulk, so pace larger runs. Add devices to the account when one phone is not fast enough.

Sources

  1. Oister 12 hours of calls and 12 GB, free SMS and MMS ("Fri SMS/MMS"), checked on September 23, 2026
  2. Twilio SMS pricing, Denmark, checked on September 23, 2026

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