Reach 107 million Bangladesh mobile subscribers at $0.0090 USD per message. smsroute covers Grameenphone (52%), Robi Axiata (26%), Banglalink (15%), and Teletalk Bangladesh (7%) with 97.6% delivery success and 105 ms median latency. No KYC, no phone verification, no corporate documents at signup. Pay with Bitcoin, USDT (TRC-20 preferred), Ethereum, Litecoin, Monero, or Solana. Minimum $5 top-up. 99.9% uptime, instant API key, BTRC sender ID registration guidance included.
Why Bangla Script SMS Segments Cut Your Bangladesh Character Budget in Half
Bangladesh's primary language is Bangla (Bengali), written in the Bengali script. When you send an SMS containing Bangla text, mobile operators and handsets automatically switch from GSM-7 encoding (which covers Latin letters, numbers, and basic symbols) to UCS-2 encoding (Unicode, supporting all global scripts). This encoding change has a critical side effect: each SMS segment can carry only 70 characters in UCS-2 instead of 160 characters in GSM-7.
In practice, a message like "আপনার অর্ডার #12345 সফলভাবে নিশ্চিত হয়েছে" (16 Bangla characters) might appear short, but when encoded as UCS-2 and sent via SMS, it occupies one full segment. A longer message—say, 150 Bangla characters—requires three segments. smsroute's API automatically detects the script in your message and applies the correct encoding; you pay per segment delivered. If you send a mixture of Bangla and Latin (e.g., "আপনার অর্ডার #12345"), the entire message is treated as UCS-2 and the 70-character limit applies.
For high-volume campaigns in Bangla, budget for 2–3× the segment count you would expect in English. smsroute's dashboard shows live character counting and segment estimation for both GSM-7 and UCS-2, so you can see the cost before sending.
GSM-7 vs. UCS-2 Encoding and Operator Reach
Bangladesh's mobile networks route SMS through standard international telecom infrastructure. Messages sent in GSM-7 (Latin-based text) traverse carriers' SMS centers (SMSCs) with minimal processing overhead and are delivered to handsets that may or may not support the extended character set. Bangla text, encoded as UCS-2, is routed through the same SMSC infrastructure but requires every hop (including the handset) to support Unicode rendering.
All major Bangladesh operators—Grameenphone, Robi Axiata, Banglalink, and Teletalk Bangladesh—support UCS-2 SMS delivery to modern smartphones and feature phones. However, very old handsets (pre-2010 models) may not render Bangla correctly; in such cases, operators typically display a placeholder or garbled text. smsroute's 97.6% delivery success rate accounts for network filtering, invalid numbers, and subscriber opt-out status; it does not account for handset-level rendering limitations.
For transactional SMS (OTPs, PINs, account alerts), use GSM-7 with Latin numerals and Latin characters. For marketing and customer engagement in Bangla, expect UCS-2 encoding and budget accordingly. Mixed-language messages (e.g., "আপনার Code: 1234") are treated as UCS-2 and incur the 70-character limit.
Mobile Operators in Bangladesh
Grameenphone (52% market share): The largest operator in Bangladesh, Grameenphone handles roughly half of all mobile subscribers. SMS delivery is reliable and immediate. Interconnect is standard SMPP; no special routing required. Grameenphone enforces BTRC registry rules strictly and may block messages from unregistered sender IDs.
Robi Axiata (26% market share): The second-largest operator, Robi Axiata covers urban and semi-rural areas. SMS latency is comparable to Grameenphone. Robi also enforces BTRC sender ID registration and applies filtering to unsolicited messages. Delivery success is 97–99%.
Banglalink (15% market share): A tier-2 operator with strong coverage in Dhaka and other major cities. SMS delivery is reliable; Banglalink also enforces quiet hours and consent rules. Average latency is 110–130 ms.
Teletalk Bangladesh (7% market share): The state-owned operator, Teletalk serves government employees and rural areas. SMS routing is standard, but delivery speeds can be slightly slower (150–200 ms p95). BTRC registry compliance is mandatory.
All four operators interconnect at a single national SMSC hub. smsroute routes to all four via standard SMPP connections; there are no operator-specific APIs or fees. You are charged $0.0090 per SMS regardless of which operator receives the message.
Pricing vs. Competitors
smsroute's Bangladesh SMS rate of $0.0090 per message is significantly lower than Twilio and most tier-1 competitors. Below is a current pricing comparison for SMS to Bangladesh:
| Provider | Price per SMS (USD) | vs. smsroute |
|---|---|---|
| smsroute | $0.0090 | best price |
| Twilio | $0.0145 | baseline |
| Vonage | $0.0131 | 31% more |
| Infobip | $0.0135 | 33% more |
| Telnyx | $0.0109 | 17% more |
smsroute is 61% cheaper than Twilio for Bangladesh SMS. Even compared to the lowest-priced competitor (Plivo at $0.0185), smsroute saves you 51%. This cost advantage compounds across large campaigns: a 100,000-message campaign to Bangladesh costs $900 on smsroute, $2,310 on Twilio, and $1,850 on Plivo.
All competitors require credit card or bank account verification (KYC). smsroute requires only an email address and cryptocurrency, removing the friction of card validation and enabling instant API access.
How to Send SMS to Bangladesh in 3 Steps
Step 1: Create a free smsroute account
Visit https://smsroute.cc and sign up with your email address. No phone verification, no KYC, no corporate documents required. Your API key is issued instantly. You will see your account dashboard, remaining balance, and API documentation.
Step 2: Top up with cryptocurrency
Deposit Bitcoin, USDT (TRC-20 preferred), Ethereum, Litecoin, Monero, or Solana into your smsroute wallet. Minimum top-up is $5 USD. Your balance is credited within 1–3 blockchain confirmations.
Step 3: Send SMS to +880 numbers
Use the smsroute REST API or Python SDK to send messages. Format recipient numbers in E.164 format: +880XXXXXXXXX (country code +880, then the 10-digit mobile number without leading zero). You are charged $0.0090 USD per SMS segment delivered.
Example: REST API (curl)
Example: Python SDK
Both examples show the automatic UCS-2 encoding of Bangla text. The API returns the number of segments sent (likely 2–3 for the message above) and the cost in USD. OTP and transactional messages follow the same flow.
Bangladesh Consent Framework: Digital Security Act & BTRC Registry
Bangladesh's Digital Security Act (2018) is the primary statute governing telecommunications, including SMS. Under this framework, marketing SMS requires explicit opt-in consent from the recipient before the first message is sent. Consent must be documented and retained for audit purposes.
Transactional SMS—such as one-time passwords (OTPs), service confirmations, appointment reminders, or delivery notifications sent under an existing customer relationship—fall under a "soft opt-in" exemption. If the customer has signed up for a service (e.g., online shopping, banking, ride-hailing), sending transactional messages tied to that service does not require separate pre-marketing consent. However, you must still comply with quiet hour restrictions and BTRC registry requirements.
The Bangladesh Telecommunication Regulatory Commission (BTRC) at https://www.btrc.gov.bd/ maintains a sender ID registry. For marketing campaigns, you must register your sender ID (numeric 5–8 digits, alphanumeric up to 11 characters, or company name) with BTRC before launching. Approval typically takes 3–5 business days. The regulator has published enforcement actions against major senders who violate consent rules or send outside quiet hours; penalties include sender ID blacklisting and carrier network blocks.
If your SMS integration includes Mobile Financial Services (e.g., bKash, Nagad, Rocket), additional compliance layers apply. These operators enforce their own consent and opt-in rules, separate from the Digital Security Act. Consult your MFS provider's API documentation and BTRC guidelines for current requirements.
smsroute does not store or validate customer consent; that responsibility lies with you as the SMS sender. We recommend maintaining a clear opt-in log (timestamp, channel, recipient contact info) and a mechanism for subscribers to opt out (e.g., "Reply STOP to unsubscribe"). Quiet hours are 09:00–21:00 BDT (UTC+6); no SMS should be sent outside this window or on national/Islamic holidays (Eid, Ashura, etc.).
Latency and Delivery Performance
smsroute achieves 105 ms median latency (p50) and 175 ms 95th-percentile latency (p95) for SMS delivery to Bangladesh. This means half of all messages arrive within 105 milliseconds, and 95% arrive within 175 milliseconds. Network jitter and carrier processing can cause occasional outliers, but end-to-end latency to the SMSC is typically under 200 ms.
Delivery success rate is 97.6% across all four major operators (Grameenphone, Robi, Banglalink, Teletalk). The remaining 2.4% failure rate is attributable to invalid phone numbers, subscriber opt-out status, network congestion, BTRC/carrier filtering of unsolicited SMS, and temporary SMSC unavailability. Transactional SMS (OTPs, service alerts) typically achieve >99% delivery; marketing SMS may be lower if recipients have opted out or if the BTRC has flagged the sender ID.
smsroute's uptime SLA is 99.9%, meaning the API is available 99.9% of the time (approximately 43 minutes downtime per month). We monitor all SMPP connections to Bangladesh operators in real time and fail over to backup routes if primary paths degrade.
Frequently Asked Questions
What is the minimum message cost to Bangladesh?
The minimum cost is $0.0090 USD per SMS to any Bangladesh mobile number. This includes all major operators: Grameenphone, Robi Axiata, Banglalink, and Teletalk Bangladesh. No hidden fees, no per-operator surcharges.
Do I need KYC or identity verification to send SMS from smsroute?
No. smsroute requires no phone verification, no ID, and no corporate documents at account creation. Sign up with email, top up with cryptocurrency, and send immediately. Compliance with Bangladesh's Digital Security Act (2018) and BTRC sender ID registration is your responsibility as the sender.
What payment methods does smsroute accept?
smsroute is crypto-only. Pay with Bitcoin, USDT (TRC-20 preferred), Ethereum, Litecoin, Monero, or Solana. No credit cards, no SEPA transfers, no bank wires. Minimum top-up is $5 USD.
How do I register a sender ID with BTRC for Bangladesh?
BTRC sender ID registration is mandatory for marketing or bulk SMS campaigns in Bangladesh. You must register directly with the Bangladesh Telecommunication Regulatory Commission (BTRC) at https://www.btrc.gov.bd/. Sender IDs can be numeric (5–8 digits), alphanumeric (max 11 characters), or a registered company name. Approval typically takes 3–5 business days after submission. Transactional SMS (e.g., OTPs, password resets, service confirmations) generally do not require BTRC pre-approval if sent under an existing service contract.
What quiet hours apply to SMS in Bangladesh?
Marketing SMS may only be sent between 09:00 and 21:00 BDT (UTC+6). No SMS should be sent on national holidays or Islamic holidays, including Eid al-Fitr, Eid al-Adha, and Ashura. Transactional SMS (OTPs, alerts, confirmations) are exempt from quiet hour restrictions but should still respect religious observances.
What is the delivery success rate to Bangladesh?
smsroute achieves 97.6% delivery success to Bangladesh mobile networks, with median latency of 105 ms (p50) and 95th-percentile latency of 175 ms. Delivery can be affected by network congestion, invalid numbers, subscriber opt-out status, and BTRC/carrier filtering of unsolicited SMS.
Does smsroute support Bangla (Bengali) script in SMS?
Yes. Bangla text is encoded as UCS-2, which means each SMS segment carries only 70 characters instead of 160. A message that would fit in one GSM-7 segment (160 chars) often requires 2–3 UCS-2 segments. smsroute's API automatically detects script and applies the correct encoding; you are charged per segment delivered.
What is Bangladesh's consent framework for SMS marketing?
Bangladesh's Digital Security Act (2018) requires explicit opt-in consent before sending marketing SMS. Transactional SMS (service confirmations, password resets, appointment reminders) may be sent under a valid service contract (soft opt-in). If your SMS integrates with Mobile Financial Services (e.g., bKash, Nagad), you must also comply with those operators' consent policies. BTRC registry consultation is mandatory; consult https://www.btrc.gov.bd/ for current guidelines.
Related
import fetch from "node-fetch";
const apiKey = process.env.SMSROUTE_API_KEY;
const res = await fetch("https://api.smsroute.cc/messages", {
method: "POST",
headers: {
Authorization: `Bearer ${apiKey}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
to: "+8805551234567",
from: "smsroute",
text: "Your verification code is 384921",
}),
});
console.log(await res.json());
import os, requests
resp = requests.post(
"https://api.smsroute.cc/messages",
headers={"Authorization": f"Bearer {os.environ['SMSROUTE_API_KEY']}"},
json={
"to": "+8805551234567",
"from": "smsroute",
"text": "Your verification code is 384921",
},
timeout=10,
)
resp.raise_for_status()
print(resp.json())
curl -X POST https://api.smsroute.cc/send \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"to": "+8801712345678",
"message": "আপনার অর্ডার #12345 সফলভাবে নিশ্চিত হয়েছে। ধন্যবাদ।"
}'
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
)
func main() {
payload, _ := json.Marshal(map[string]string{
"to": "+8805551234567",
"from": "smsroute",
"text": "Your verification code is 384921",
})
req, _ := http.NewRequest("POST",
"https://api.smsroute.cc/messages",
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' => '+8805551234567',
'from' => 'smsroute',
'text' => 'Your verification code is 384921',
], JSON_UNESCAPED_UNICODE);
$ch = curl_init('https://api.smsroute.cc/messages');
curl_setopt_array($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);
Bangladesh Consent Framework: Digital Security Act & BTRC Registry
Bangladesh's Digital Security Act (2018) is the primary statute governing telecommunications, including SMS. Under this framework, marketing SMS requires explicit opt-in consent from the recipient before the first message is sent. Consent must be documented and retained for audit purposes.
Transactional SMS—such as one-time passwords (OTPs), service confirmations, appointment reminders, or delivery notifications sent under an existing customer relationship—fall under a "soft opt-in" exemption. If the customer has signed up for a service (e.g., online shopping, banking, ride-hailing), sending transactional messages tied to that service does not require separate pre-marketing consent. However, you must still comply with quiet hour restrictions and BTRC registry requirements.
The Bangladesh Telecommunication Regulatory Commission (BTRC) at https://www.btrc.gov.bd/ maintains a sender ID registry. For marketing campaigns, you must register your sender ID (numeric 5–8 digits, alphanumeric up to 11 characters, or company name) with BTRC before launching. Approval typically takes 3–5 business days. The regulator has published enforcement actions against major senders who violate consent rules or send outside quiet hours; penalties include sender ID blacklisting and carrier network blocks.
If your SMS integration includes Mobile Financial Services (e.g., bKash, Nagad, Rocket), additional compliance layers apply. These operators enforce their own consent and opt-in rules, separate from the Digital Security Act. Consult your MFS provider's API documentation and BTRC guidelines for current requirements.
smsroute does not store or validate customer consent; that responsibility lies with you as the SMS sender. We recommend maintaining a clear opt-in log (timestamp, channel, recipient contact info) and a mechanism for subscribers to opt out (e.g., "Reply STOP to unsubscribe"). Quiet hours are 09:00–21:00 BDT (UTC+6); no SMS should be sent outside this window or on national/Islamic holidays (Eid, Ashura, etc.).
Latency and Delivery Performance
smsroute achieves 105 ms median latency (p50) and 175 ms 95th-percentile latency (p95) for SMS delivery to Bangladesh. This means half of all messages arrive within 105 milliseconds, and 95% arrive within 175 milliseconds. Network jitter and carrier processing can cause occasional outliers, but end-to-end latency to the SMSC is typically under 200 ms.
Delivery success rate is 97.6% across all four major operators (Grameenphone, Robi, Banglalink, Teletalk). The remaining 2.4% failure rate is attributable to invalid phone numbers, subscriber opt-out status, network congestion, BTRC/carrier filtering of unsolicited SMS, and temporary SMSC unavailability. Transactional SMS (OTPs, service alerts) typically achieve >99% delivery; marketing SMS may be lower if recipients have opted out or if the BTRC has flagged the sender ID.
smsroute's uptime SLA is 99.9%, meaning the API is available 99.9% of the time (approximately 43 minutes downtime per month). We monitor all SMPP connections to Bangladesh operators in real time and fail over to backup routes if primary paths degrade.
Frequently Asked Questions
What is the minimum message cost to Bangladesh?
The minimum cost is $0.0090 USD per SMS to any Bangladesh mobile number. This includes all major operators: Grameenphone, Robi Axiata, Banglalink, and Teletalk Bangladesh. No hidden fees, no per-operator surcharges.
Do I need KYC or identity verification to send SMS from smsroute?
No. smsroute requires no phone verification, no ID, and no corporate documents at account creation. Sign up with email, top up with cryptocurrency, and send immediately. Compliance with Bangladesh's Digital Security Act (2018) and BTRC sender ID registration is your responsibility as the sender.
What payment methods does smsroute accept?
smsroute is crypto-only. Pay with Bitcoin, USDT (TRC-20 preferred), Ethereum, Litecoin, Monero, or Solana. No credit cards, no SEPA transfers, no bank wires. Minimum top-up is $5 USD.
How do I register a sender ID with BTRC for Bangladesh?
BTRC sender ID registration is mandatory for marketing or bulk SMS campaigns in Bangladesh. You must register directly with the Bangladesh Telecommunication Regulatory Commission (BTRC) at https://www.btrc.gov.bd/. Sender IDs can be numeric (5–8 digits), alphanumeric (max 11 characters), or a registered company name. Approval typically takes 3–5 business days after submission. Transactional SMS (e.g., OTPs, password resets, service confirmations) generally do not require BTRC pre-approval if sent under an existing service contract.
What quiet hours apply to SMS in Bangladesh?
Marketing SMS may only be sent between 09:00 and 21:00 BDT (UTC+6). No SMS should be sent on national holidays or Islamic holidays, including Eid al-Fitr, Eid al-Adha, and Ashura. Transactional SMS (OTPs, alerts, confirmations) are exempt from quiet hour restrictions but should still respect religious observances.
What is the delivery success rate to Bangladesh?
smsroute achieves 97.6% delivery success to Bangladesh mobile networks, with median latency of 105 ms (p50) and 95th-percentile latency of 175 ms. Delivery can be affected by network congestion, invalid numbers, subscriber opt-out status, and BTRC/carrier filtering of unsolicited SMS.
Does smsroute support Bangla (Bengali) script in SMS?
Yes. Bangla text is encoded as UCS-2, which means each SMS segment carries only 70 characters instead of 160. A message that would fit in one GSM-7 segment (160 chars) often requires 2–3 UCS-2 segments. smsroute's API automatically detects script and applies the correct encoding; you are charged per segment delivered.
What is Bangladesh's consent framework for SMS marketing?
Bangladesh's Digital Security Act (2018) requires explicit opt-in consent before sending marketing SMS. Transactional SMS (service confirmations, password resets, appointment reminders) may be sent under a valid service contract (soft opt-in). If your SMS integrates with Mobile Financial Services (e.g., bKash, Nagad), you must also comply with those operators' consent policies. BTRC registry consultation is mandatory; consult https://www.btrc.gov.bd/ for current guidelines.
Related
Ready to send SMS to Bangladesh?
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