Bulk SMS Gateway
Deliver OTPs, transactional alerts, and marketing campaigns at scale with a DLT-compliant SMS gateway built for India and global reach — sub-3-second delivery, smart carrier routing, and real-time reports on every message.
WALOOP SMS Gateway
LIVE · DLT COMPLIANT
Delivery Rate
Avg. Delivery Speed
Live Activity
Order confirmation SMS
+91 98XXX XX214
OTP verification
+91 87XXX XX562
Shipping update SMS
+91 90XXX XX748
What is a Bulk SMS Gateway?
The WALOOP Bulk SMS Gateway is a high-throughput messaging platform that sends transactional and promotional SMS at scale, with DLT registration handled for you, smart routing across carriers, and delivery reports on every single message.
Lightning-Fast Delivery
OTPs and transactional alerts reach handsets in under 3 seconds, even during peak traffic.
DLT Compliant
Every message is routed through TRAI's Distributed Ledger Technology framework, with registration handled end to end.
India & Global Reach
Send domestically across every Indian carrier or internationally to 190+ countries from one platform.
Smart Carrier Routing
Messages are automatically routed through the best-performing carrier path to maximize delivery success.
Real-Time Delivery Reports
Track sent, delivered, and failed status for every message with live DLR updates down to the second.
Developer-Friendly API
A REST API with webhooks lets your team send, track, and automate SMS without touching a dashboard.
Built to Scale
Push millions of messages a day without a dip in throughput or delivery performance.
Always On
A redundant, enterprise-grade infrastructure keeps your messages flowing around the clock.
Everything your SMS channel needs
A complete toolkit for sending, tracking, and scaling transactional and promotional SMS across every use case.
Sub-3-Second OTP Delivery
One-time passwords and login codes land on the handset in under 3 seconds, keeping conversion friction low.
OTP · Instant · High Priority
DLT Registration Assistance
We guide you through entity, header, and template registration on the DLT platform so every message stays compliant.
TRAI · Compliance · Guided Setup
REST API & Webhooks
Send single or bulk messages programmatically and receive real-time status callbacks on your own endpoint.
REST API · Webhooks · Docs
Real-Time DLR Reports
Delivery reports update live for every message, with sent, delivered, and failed states visible instantly.
DLR · Live Status · Reports
Smart Carrier Routing
Traffic is dynamically routed across multiple carrier connections to maximize delivery rates and minimize latency.
Multi-Carrier · Failover · Optimized
Template Management
Create, submit, and manage DLT-approved templates for transactional and promotional messages from one place.
Templates · DLT Approved · Reusable
Bulk Contact Lists
Upload, segment, and manage large contact lists for targeted promotional campaigns.
Segmentation · CSV Import · Targeting
Scheduled Campaigns
Queue promotional or reminder blasts in advance and let the platform send them at the optimal time.
Scheduling · Automation · Campaigns
Global SMS Delivery
Reach customers in 190+ countries with local routing that keeps international delivery fast and reliable.
190+ Countries · Local Routes · Global
High-Throughput Sending
Push millions of messages per day through a horizontally scalable gateway built for enterprise volume.
Millions/Day · Scalable · Enterprise
Sender ID Management
Register and manage approved sender IDs and headers so every message arrives with a trusted, branded identity.
Sender ID · Branded · Trusted
Analytics Dashboard
Monitor delivery rates, latency, and campaign performance in a single real-time dashboard.
Dashboard · Insights · Real-Time
From trigger to delivered in seconds
A single message moves through the gateway's pipeline in seconds, from API call to confirmed delivery.
Trigger the Send
Your app calls the REST API or dashboard to send a transactional or promotional message.
Template & DLT Check
The message is matched against your approved DLT template and sender ID before it leaves the gateway.
Smart Routing
The gateway selects the fastest, most reliable carrier path for the destination in real time.
Delivered to Handset
The message reaches the recipient's phone, typically in under 3 seconds for priority traffic like OTPs.
Live Status Reported
A delivery report is pushed to your webhook the instant the message is sent, delivered, or fails.
Built for every high-volume business
WALOOP Bulk SMS Gateway adapts to the messaging patterns each industry relies on most.
E-commerce
Send order confirmations, shipping updates, and delivery alerts the moment they happen.
Banking & Finance
Deliver OTPs, transaction alerts, and fraud notifications with the speed compliance demands.
Insurance
Send policy reminders, renewal alerts, and claim status updates directly to policyholders.
Logistics & Delivery
Keep customers updated with real-time shipment tracking and delivery-window notifications.
Healthcare
Send appointment reminders, prescription alerts, and lab report notifications reliably.
Education
Notify students and parents about admissions, results, fee due dates, and attendance.
Travel & Hospitality
Send booking confirmations, check-in reminders, and itinerary updates at scale.
Retail & Marketing
Run promotional blasts, flash-sale alerts, and loyalty campaigns to segmented audiences.
Food Delivery
Push order status, delivery ETAs, and offer codes the moment an order updates.
Real Estate
Send site-visit confirmations, payment reminders, and project updates to buyers.
Why teams switch to WALOOP SMS
Sub-3-Second Delivery
OTPs and time-sensitive alerts reach customers before they lose interest.
Guaranteed DLT Compliance
Stay fully aligned with TRAI regulations without managing the paperwork yourself.
Higher Delivery Rates
Smart multi-carrier routing keeps delivery rates consistently high, even at peak volume.
Global Coverage
Reach customers across India and 190+ countries from a single integration.
Scales With You
Send a few thousand messages or a few million without changing your setup.
Full Visibility
Real-time delivery reports mean you always know exactly where a message stands.
Easy Integration
A well-documented REST API and webhooks get your team live in days, not weeks.
Lower Cost Per Message
Smart routing and volume-based pricing keep your cost per delivered message down.
Connects with the tools you already run
REST API
Send, schedule, and track messages programmatically from any application.
Webhooks
Receive real-time delivery status callbacks the instant a message state changes.
E-commerce Platforms
Connect order and shipping events directly to automated SMS notifications.
CRM
Sync contacts and trigger messages from HubSpot, Salesforce, Zoho, and more.
Zapier
Trigger SMS sends from thousands of apps without writing a line of code.
CDP & Data Platforms
Pull segments from your customer data platform to power targeted campaigns.
SDKs
Drop in ready-made libraries for popular languages to integrate in minutes.
Slack
Get delivery failure alerts and campaign summaries posted to your team channel.
Frequently Asked Questions
Everything you need to know before putting WALOOP Bulk SMS Gateway to work.
DLT is TRAI's Distributed Ledger Technology framework that requires every commercial sender, header, and message template in India to be pre-registered. It exists to curb spam and fraud — messages sent outside a registered template are blocked by carriers. WALOOP handles entity, header, and template registration on your behalf.
Ready to Send SMS at Scale?
Put a DLT-compliant Bulk SMS Gateway behind your product to deliver OTPs, order updates, and campaigns in seconds — with delivery reports on every message.