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NewRCS & WhatsApp fallback · AI message writer

Bulk SMS service for businesses in Bangladesh

Send masking and non-masking SMS to thousands of customers in seconds, with live delivery reports and a simple API for your apps.

Request a demo Calculate your cost
2M+SMS sent a month
98%delivery rate
< 5 secaverage delivery
Bulk SMS Service · Messaging · Live
NEXBYTEMasking ID · now

আপনার OTP: 482913. ৫ মিনিটের মধ্যে ব্যবহার করুন।

OTP · 1.2s

Hi Rahim, your order #1042 has shipped. Track: nxb.li/o42

Order alert

Eid offer! 20% off till Friday. Reply STOP to opt out.

Campaign
Delivered98.6%
Sending now24,512SMS / campaign
FallbackRCSWhatsAppSMS
Overview

What is Bulk SMS Service?

bulk SMS Bangladeshmasking SMSnon-masking SMSSMS gateway BD
New in 2026RCS & WhatsApp fallbackAI message writerClick tracking

Nexbyte Bulk SMS lets you send promotional, transactional and OTP messages to thousands of customers in seconds. Use your own brand name as the sender ID with masking SMS, or choose low-cost non-masking SMS for alerts and high-volume campaigns.

Upload numbers from Excel, pick a template and send, or connect your website and software through our SMS API. Every message is tracked with a live delivery report, so you always know what reached your customers.

  • Live in days, not monthsSetup, migration and training by our team
  • Secure by defaultRoles, two-factor login and audit logs
  • Local supportBangla and English, on chat, phone and email
Features

Everything Bulk SMS can do

12 features in 3 groups. Items marked New are the latest additions.

Masking SMS

Your brand name as sender ID on every operator.

Non-masking SMS

Low-cost routes for alerts and big campaigns.

Bangla & Unicode

Auto-detects Bangla and counts parts before sending.

RCS & WhatsApp fallbackNew

Send rich messages and fall back to SMS automatically.

Brand sender ID

Masking SMS shows your company name, which builds trust and gets more replies.

Fast delivery

Messages reach phones in a few seconds through direct operator routes.

Developer-friendly API

REST API, code samples and webhooks for OTP and order alerts.

Bangla & Unicode

Send in Bangla, English or both, with automatic character counting.

Schedule & personalise

Schedule campaigns and insert names or amounts for each customer.

Clear reports

Delivery status per number, campaign summaries and Excel export.

How it works

Get started in four steps

  1. 01Create your account

    Sign up and verify your company documents.

  2. 02Get your sender ID

    We register your brand name for masking SMS with the operators.

  3. 03Add contacts

    Upload numbers from Excel or connect through the API.

  4. 04Send and track

    Send now or schedule, then follow every delivery live.

Cost calculator

See your price before you call us

Move the sliders to match your needs. The estimate updates instantly in BDT.

Estimate your SMS cost

Sender type
Estimated cost৳0

Get this price Estimate only. Final price is confirmed in writing.
Developer API

Send an SMS in minutes

A simple REST API with webhooks, sandbox keys and docs. Plug it into your website, app or software.

  • Sandbox key on signup
  • Webhooks for every status change
  • SDK examples for PHP, Node.js and Python
curl -X POST https://api.nexbyte.com.bd/v1/sms \
-H "Authorization: Bearer $API_KEY" \
-d to=8801712345678 \
-d sender=NEXBYTE \
-d message="Your OTP is 482913"
Compare

Nexbyte vs a typical provider

FeatureNexbyteTypical
Brand sender ID
Bangla Unicode with part counter—
OTP priority route—
RCS & WhatsApp fallback—
Click tracking on links—
Local support in Bangla—
Specifications

Technical details

Throughput
Up to 1,000 SMS per second
Message length
160 chars (English) · 70 chars (Bangla)
Sender types
Masking (brand) and non-masking
Operators
Grameenphone, Robi, Banglalink, Teletalk
API
REST, HTTP GET/POST, webhooks
Reports
Real-time, export to Excel/CSV
Uptime
99.9% platform SLA
Support
24/7 in Bangla & English

Security & compliance

  • Two-factor login and IP whitelisting for API keys
  • Encrypted contact lists and message logs
  • Role-based users and sub-accounts
  • Full audit trail of every campaign
Integrations
REST APIPHP & LaravelWordPressWooCommerceExcel importWebhooks
Pricing

Simple pricing in BDT

Use the calculator

Starter

৳0.30 / SMS
  • Non-masking SMS
  • Web dashboard
  • Delivery reports
  • Email support
Get started
Most popular

Business

৳0.25 / SMS
  • Masking + non-masking
  • SMS API & webhooks
  • Scheduled campaigns
  • Priority support
Get started

Enterprise

Custom volume pricing
  • Dedicated routes
  • OTP priority lane
  • Account manager
  • SLA
Talk to sales

Example prices for planning. Final rates are confirmed in your written quote.

FAQ

Questions about Bulk SMS Service

8 answers. Still unsure? Our team replies within two working days.

Ask a question
What is the difference between masking and non-masking SMS?

Masking SMS shows your brand name as the sender, for example "NEXBYTE". Non-masking SMS comes from a regular number and costs less, which suits alerts and high-volume messages.

How fast are messages delivered?

Most messages are delivered within a few seconds. You can see the exact status of every message in your delivery report.

Can I send SMS in Bangla?

Yes. You can send Bangla (Unicode), English or mixed messages. The dashboard shows the character and SMS count before you send.

Do you provide an SMS API?

Yes. We provide a REST API with code samples for PHP, Node.js and Python, plus webhooks for delivery status.

How do I pay?

You can recharge your balance by bKash, Nagad, bank transfer or card. Unused balance does not expire.

Is there a minimum order?

No. You can start with a small balance and recharge any time.

Can I get delivery reports by API?

Yes. Delivery status is pushed to your webhook URL and is also available through the reports API.

Do you support OTP?

Yes. OTP messages use a separate priority route so they are delivered first, even during big campaigns.

Start a project

Have a product idea or a process to fix?

Tell us what you need. We'll come back with a plan, a timeline and the right team, usually within two working days.

What happens next~48h

1
Discovery call30 minutes with a solution lead
Day 1
2
Plan & estimateScope, milestones and a fixed quote
Day 2
3
KickoffYour team, board and first sprint
Week 1
SRAKTM+4
Solution team online
Average first reply in 3 hours