Power your customer communication with instant SMS delivery across Grameenphone, Robi, Banglalink, and Teletalk. Complete with official brand masking, developer REST APIs, and WHMCS-grade automated billing. Built & backed by SMS Extreme.
Dear Customer, your SMS Extreme verification OTP is 849201. Valid for 3 minutes. Do not share this code with anyone.
From single mission-critical OTPs to millions of promotional broadcasts, our carrier-grade infrastructure handles it with speed and precision.
Display your brand name (up to 11 characters) as the SMS sender instead of a random number. Instantly establishes credibility, prevents fraud, and achieves unmatched open rates.
Cost-effective delivery through fixed 11-digit numeric sender IDs. Perfect for mass marketing broadcasts, community updates, e-commerce offers, and event announcements.
Integrate programmatic SMS into your Laravel, Node.js, Python, or mobile apps in under 10 minutes. Includes Bearer token auth, real-time webhooks, and SSL Wireless compatibility.
Import thousands of contacts via CSV/Excel spreadsheets. Normalize phone numbers, deduplicate lists, and personalize messages with dynamic tags like {name}.
WHMCS-style automated invoicing. Recharge your balance 24/7 with instant bKash checkout or manual payment validation (Nagad, Rocket, Bank Wire EFT). Download pro-forma PDF receipts.
Inspect every single dispatched SMS with live handset delivery timestamps, carrier route responses, operator codes, and character count / multi-part segment analysis.
Understand the difference between official branded headers and high-volume numeric routes to choose the right strategy for your business.
The SMS arrives with your company's name on the customer's phone. Builds immense brand prestige, completely eliminates spoofing, and creates instant trust.
The SMS arrives from an 11-digit mobile operator number. Delivers high throughput at the lowest per-unit price, making it the top choice for mass marketing campaigns.
Choose from popular tiered bundles or calculate your exact custom volume below. Automatic pro-forma invoice and instant bKash checkout upon order.
Select your preferred route type and enter your desired quantity to preview your wholesale pro-forma price instantly.
Our RESTful HTTP API is built for engineers. Generate dedicated secret tokens bound to your approved Sender IDs, trigger single OTPs or massive batches, and receive live delivery callbacks via webhooks.
curl -X POST "https://sms.extremecoder.net/api/v1/sms/send" \ -H "Authorization: Bearer YOUR_API_TOKEN" \ -H "Content-Type: application/json" \ -d '{ "recipient": "017XXXXXXXX", "message": "Hello from SMS Extreme! Your OTP is 4921.", "sender_id": "YOUR_APPROVED_HEADER" }'
<?php $response = Http::withToken('YOUR_API_TOKEN') ->post('https://sms.extremecoder.net/api/v1/sms/send', [ 'recipient' => '017XXXXXXXX', 'message' => 'Hello from SMS Extreme! Your OTP is 4921.', 'sender_id' => 'YOUR_APPROVED_HEADER', ]); return $response->json();
import requests payload = { "recipient": "017XXXXXXXX", "message": "Hello from SMS Extreme! Your OTP is 4921.", "sender_id": "YOUR_APPROVED_HEADER" } headers = { "Authorization": "Bearer YOUR_API_TOKEN", "Content-Type": "application/json" } response = requests.post("https://sms.extremecoder.net/api/v1/sms/send", json=payload, headers=headers) print(response.json())
const axios = require('axios'); async function sendSms() { const res = await axios.post('https://sms.extremecoder.net/api/v1/sms/send', { recipient: '017XXXXXXXX', message: 'Hello from SMS Extreme! Your OTP is 4921.', sender_id: 'YOUR_APPROVED_HEADER' }, { headers: { Authorization: 'Bearer YOUR_API_TOKEN' } }); console.log(res.data); }
SMS Extreme is a premier telecom and messaging infrastructure gateway platform headquartered in Banani, Dhaka. We specialize in mission-critical corporate SMS delivery, tier-1 carrier aggregation, and high-throughput automation.
We have built a purpose-engineered platform that eliminates common reseller headaches: zero hidden charges, real-time carrier delivery verification, sub-second OTP routing, and automated billing.
Everything you need to know about our SMS gateway, operator compliance, and payment processes.
Under BTRC regulations, Brand Masking (e.g. sending SMS with your brand name like "YOURBRAND" or "SMSEXTRM") requires official verification. To approve your brand name, you submit your Trade License, National ID, and signed operator authorization form through our client portal. Our compliance desk submits it to telecom operators (GP, Robi, BL, Teletalk) for official clearance.
Masking SMS arrives with your official Brand Name header (e.g., YOURBRAND / SMSEXTRM) on the recipient's phone, giving 98%+ open rates and zero spam perception. Non-Masking SMS arrives from a standard 11-digit numeric sender number (018XXXXXXXX) and offers the lowest wholesale rate per message, making it ideal for mass marketing.
Recharging is automated via official secure bKash Checkout (funds and credits are added instantly 24/7). We also support Nagad, Rocket, and Bank Wire EFT transfers. Once you create an order in your portal, an invoice is generated automatically.
No! All SMS packages purchased on our platform carry unlimited lifetime validity as long as your account remains in active status. Your unused credits never expire at the end of the month.
Yes. Our modern REST API accepts JSON payloads with simple Bearer token authentication. We provide cURL, PHP / Laravel, Python, and Node.js code snippets in your portal, along with real-time delivery status callback webhooks.
Sign up for a free corporate account today. Access your sandbox test API, upload contacts, and launch high-impact SMS campaigns with SMS Extreme.
