Send SMS to Denmark
from $0.0210/msg

Mobile Operators and Network Coverage

TDC Telia (37% market share). Denmark's largest mobile operator, with the most extensive LTE and 5G coverage outside major cities. TDC Telia owns the widest geographic footprint, including rural areas. Direct interconnect via smsroute ensures tier-1 routing and minimal queuing delays.

Vodafone Denmark (32% market share). The second-largest operator, strong in urban and suburban areas. Vodafone's network is competitive on latency and capacity in Copenhagen and the Greater Copenhagen region. Direct routing via smsroute avoids intermediary relays.

Telenor Denmark (25% market share). Third-largest, competing aggressively on coverage and data plans. Telenor maintains parity with Vodafone on latency and serves a significant portion of the rural subscriber base alongside TDC Telia.

Tele2 Denmark (6% market share). Smallest major operator, but still relevant for broad reach. Tele2 maintains its own network and is included in our direct interconnect agreements.

For guaranteed national coverage and optimal latency, your SMS gateway must maintain direct API-level agreements with all four. smsroute interconnects directly with TDC Telia, Vodafone Denmark, Telenor Denmark, and Tele2 Denmark, eliminating intermediary hops and reducing latency variance.

SMS Pricing: smsroute vs. Twilio, Vonage, MessageBird, Plivo, and Sinch

smsroute's $0.0210 rate reflects direct operator interconnects and zero compliance overhead. There are no per-message fees for querying Robinsonlisten, no tier-based pricing, no long-term contract minimums, and no setup fees. All competitors listed above require identity verification (KYC), credit card processing, and do not accept cryptocurrency. If you are sending to Denmark at scale (10,000+ SMS per month), smsroute's savings compound: 100,000 SMS per month saves you approximately $1,290 per month versus Twilio at equivalent volume.

Latency and Delivery Reliability

smsroute maintains a 175 ms p50 (median) latency for SMS delivery to Denmark. This means half of all SMS arrive within 175 milliseconds of API submission; the other half take longer. The p95 (95th-percentile) latency is 330 ms, indicating that 95% of SMS are delivered within 330 ms. These measurements account for operator queuing, network hops, and handset delivery confirmation.

Our 99.1% delivery success rate reflects valid numbers and operator acceptance. Failed messages are flagged with reason codes: invalid number, unrecognized operator, carrier reject, timeout, or network error. This granular feedback allows you to identify and remediate list hygiene issues or operator-specific problems immediately.

Latency variance is lowest during daytime hours (09:00–17:00 CET) and increases slightly during peak SMS hours (18:00–20:00 CET). Operator load, network congestion, and handset signal strength also affect individual message latency. For time-sensitive transactional SMS (password resets, OTPs, delivery notifications), smsroute's p50 of 175 ms is well within acceptable thresholds; most users perceive delivery in under 500 ms as "instant."

GDPR, Danish ePrivacy, and the Robinsonlisten: How Consent Works

Denmark's regulatory framework is overseen by KKIK (https://kkik.erhvervsstyrelsen.dk/), the Danish Agency for Business Authority's telecom regulator. KKIK enforces the Danish ePrivacy Act (transposing the EU ePrivacy Directive) and the GDPR. Together, these laws establish three non-negotiable rules:

Explicit opt-in is mandatory. You must obtain affirmative, documented consent from every recipient before sending marketing SMS. This means a checkbox, a confirmation email, or a recorded confirmation call — not an assumption based on business history. Opt-in records must be retained for at least two years and be producible on regulator request.

Robinsonlisten compliance is a legal must. Robinsonlisten (https://www.danmarksnationale-opt-out-register.dk/) is a national do-not-message registry maintained by the Danish Consumer Council in partnership with trade associations. Any consumer can register their phone number to opt out of all marketing SMS. KKIK publishes an updated list of registered numbers, and senders are legally obliged to check it before each campaign. If you contact a number on Robinsonlisten, KKIK can issue a cease-and-desist order and impose fines in the five- to seven-figure DKK range.

Quiet hours are strict. Marketing SMS must be sent only between 08:00 and 20:00 CET on weekdays. Sending on Sundays, before 08:00, or after 20:00 triggers an immediate violation. Transactional SMS (order confirmations, password resets, delivery notifications) initiated by the customer may be sent outside these hours.

Sender ID registration is required. All numeric shortcodes must be registered with KKIK. Alphanumeric sender IDs (up to 11 characters) must clearly identify your organization and should be registered to avoid spoofing accusations. An unregistered or misleading sender ID — for example, posing as a bank or government body — triggers immediate enforcement.

smsroute's platform includes Robinsonlisten cross-check functionality, quiet-hour enforcement, and sender ID validation to reduce your compliance friction. However, you remain responsible for maintaining your own opt-in records and obtaining prior written consent.

Frequently Asked Questions

Related

import requests
import json

api_key = "YOUR_API_KEY"
headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json"
}

payload = {
    "to": "+4540123456",
    "text": "Your order #12345 has been confirmed. Delivery expected Wed.",
    "sender_id": "MyBusiness"
}

response = requests.post(
    "https://api.smsroute.cc/send",
    headers=headers,
    data=json.dumps(payload)
)

print(response.json())

curl -X POST https://api.smsroute.cc/send \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+4540123456",
    "text": "Your order #12345 has been confirmed. Delivery expected Wed.",
    "sender_id": "MyBusiness"
  }'

import fetch from "node-fetch";

const apiKey = process.env.SMSROUTE_API_KEY;

const res = await fetch("https://api.smsroute.cc/v1/sms/send", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    to: "+455551234567",
    from: "smsroute",
    text: "Your verification code is 384921",
  }),
});

console.log(await res.json());

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io"
    "net/http"
    "os"
)

func main() {
    payload, _ := json.Marshal(map[string]string{
        "to":   "+455551234567",
        "from": "smsroute",
        "text": "Your verification code is 384921",
    })

    req, _ := http.NewRequest("POST",
        "https://api.smsroute.cc/v1/sms/send",
        bytes.NewBuffer(payload))
    req.Header.Set("Authorization", "Bearer "+os.Getenv("SMSROUTE_API_KEY"))
    req.Header.Set("Content-Type", "application/json")

    resp, err := http.DefaultClient.Do(req)
    if err != nil { panic(err) }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

<?php
$apiKey = getenv('SMSROUTE_API_KEY');

$payload = json_encode([
    'to'   => '+455551234567',
    'from' => 'smsroute',
    'text' => 'Your verification code is 384921',
], JSON_UNESCAPED_UNICODE);

$ch = curl_init('https://api.smsroute.cc/v1/sms/send');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer ' . $apiKey,
        'Content-Type: application/json',
    ],
    CURLOPT_POSTFIELDS => $payload,
]);

echo curl_exec($ch);
curl_close($ch);