Bulk SMS in Singapore, SSIR registered
SSIR registration mandatory, 'Likely-SCAM' label avoided, Do Not Call Registry respected
Singapore has the strictest sender ID regime of any market on this list, and it is a national one rather than an operator one. Registration in the SMS Sender ID Registry (SSIR) has been mandatory since 31 January 2023, and the penalty for not registering is not a block, it is worse: unregistered alphanumeric senders are delivered with the label 'Likely-SCAM' attached to your brand name.
Quick Consultation
Starting at ₹2.20 – ₹4.50 per SMS + GST
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- ✓ Dedicated project manager
- ✓ GST invoice · secure payment
Quick answer
Bulk SMS in Singapore reaches around 9 million mobile connections across 3 networks, on Singtel, StarHub and M1. Alphanumeric sender IDs must be registered in the Singapore SMS Sender ID Registry (SSIR), which has been mandatory since 31 January 2023. Registration normally takes 2 to 4 weeks. AdelSocial files the registration, provides SMPP and REST access, and charges an indicative ₹2.20 – ₹3.40 per promotional SMS and ₹3.40 – ₹4.50 per transactional or OTP message, by volume and route.
Singapore is the one market where skipping registration actively harms you. Since 31 January 2023 the SSIR has been mandatory, and an unregistered alphanumeric sender is not silently dropped — it is delivered to your customer with 'Likely-SCAM' attached to your own brand name. There is no soft launch and no testing your way around it. The upside is that it is a single national filing rather than three operator filings, so once it clears you have the whole country. We file it and we will not send Singapore traffic on an unregistered ID.
₹2.20 – ₹4.50 per SMS
Starting price
Live in 2 to 4 weeks once documents are in
Typical timeline
around 9 million mobile connections · 3 networks
Highlights
What is included for Singapore
SSIR registration mandatory, 'Likely-SCAM' label avoided, Do Not Call Registry respected
Sender ID registration handled
Alphanumeric sender IDs must be registered in the Singapore SMS Sender ID Registry (SSIR), which has been mandatory since 31 January 2023. ACRA business profile or equivalent registration, an authorisation letter, the exact sender ID and evidence that you own the brand name. Normally 2 to 4 weeks.
Unicode and long messages
GSM-7 at 160 characters a segment, UCS-2 where you need accented or non-Latin characters, and concatenated long SMS. Segment count shown per message before you send.
Operator-direct routes
Direct interconnects rather than grey or SIM-farm routes, and we publish which route type your traffic is on. Grey routes are cheaper, get your sender rewritten, and get cut off without notice, so we do not sell them.
Transactional and promotional separated
OTP and transactional traffic runs on a route tuned for latency and is priced apart from promotional. Mixing both on one route is what makes OTPs arrive four minutes late.
Delivery receipts that mean something
Operator-level DLRs passed through unchanged: queued, accepted, sent, delivered, or the specific failure reason. We do not mark a message delivered because it left our gateway.
SMPP, REST and a dashboard
SMPP v3.4 over TLS for volume, a REST API for application traffic, and a dashboard with campaign upload for teams who are not developers. Sandbox credentials from day one.
Indicative SMS rate for Singapore
Where you land inside the band depends on monthly volume, message category and content language.
| Destination | Typical route | Indicative rate |
|---|---|---|
| Singapore — transactional / OTP | Tier-1 direct, SSIR registered | ₹3.40 – ₹4.50 per SMS |
| Singapore — promotional | Tier-1 direct, SSIR registered | ₹2.20 – ₹3.40 per SMS |
Indicative in INR, excluding GST. Final rates are confirmed in writing before you commit.
What businesses in Singapore send
The four use cases that make up most of the volume we carry.
OTP and login codes
Banking and finance, government services via Singpass, and the large regional headquarters sector.
- • Routed for latency, not for price.
- • Separate sender ID from marketing traffic.
Payment and due reminders
Finance, insurance, schools, utilities and ISPs.
- • Scheduled in local time (SGT, UTC+8) so nothing lands at 2am.
- • Local language where the audience expects it.
Delivery and order updates
E-commerce and logistics status messages.
- • Triggered from your own system over the API.
- • Delivery receipts written back to your database.
Offers and campaigns
Retail, travel and hospitality promotions.
- • Consent-based lists only, with opt-out handling.
- • Throttled so a 200,000-message send does not queue for hours.
Other channels for Singapore
Same country, different economics. We price all three honestly.
Bulk WhatsApp in Singapore
Best for two-way: one conversation covers 24 hours.
- • ₹3.91 per marketing conversation.
- • Needs opt-in and template approval. See /bulk-whatsapp-singapore/
RCS in Singapore
Verified brand sender, rich cards, read receipts.
- • Indicative ₹0.70 – ₹2.50 per message, SMS fallback billed separately.
- • Broadly available across the three networks. See /rcs-messaging-singapore/
Not sure which?
OTP and alerts: SMS. Two-way and catalogue: WhatsApp. Branded campaigns: RCS.
- • We sell all three, so there is no channel we need to push you towards.
- • Send us the message you want to send and the volume, and we will price all three.
Pricing
Flexible pricing plans to fit your needs.
Starter
From ₹9,999
Getting registered and live in Singapore · + GST
- ✓Sender ID filed with Singtel, StarHub and M1
- ✓Account setup and test sending to each network
- ✓REST API and dashboard access
- ✓Delivery receipt reporting
- ✓Email support
- ✓Message cost billed separately at ₹2.20 – ₹3.40 – ₹3.40 – ₹4.50 per SMS
Business
From ₹24,999
Regular campaigns and application traffic · + GST
- ✓Everything in Starter
- ✓Separate sender IDs for transactional and promotional
- ✓SMPP v3.4 bind over TLS with agreed TPS
- ✓Scheduled sending in local time (SGT, UTC+8) with throttling
- ✓Priority support on WhatsApp and email
Reseller / Enterprise
Custom
Selling Singapore traffic under your own brand
- ✓Everything in Business
- ✓White-label panel on your domain with your pricing
- ✓Multi-tier sub-accounts and per-client rate cards
- ✓Prepaid wallets, invoicing and a reseller admin
- ✓Primary and backup route per network
- ✓Named account manager
Our Process
Tell us volume and message type
Monthly volume, whether it is OTP, transactional or promotional, and the language of the content. Those three answers set your rate and your route, so we ask before quoting rather than after.
Send documents for sender registration
ACRA business profile or equivalent registration, an authorisation letter, the exact sender ID and evidence that you own the brand name. We check the ID against the refused list before filing, so you do not lose a week to a rejection.
We file with the operators
Filed once with the SSIR rather than separately with Singtel, StarHub and M1, which is simpler than most markets but slower to start.
Connect and test in sandbox
SMPP bind or REST key issued immediately, so your developers integrate while registration is pending. Send to your own numbers on each network and read the delivery receipts before you load credit.
Go live and watch the receipts
Load credit, send the first real campaign, and check the per-network delivery rate. If one network underperforms we move the route and tell you that we did.
Technology We Use
Connectivity
SMPP v3.4 over TLS · REST / HTTP API · Webhooks for DLR and inbound · Sandbox credentials
Encoding
GSM-7, 160 characters per segment · UCS-2 for non-Latin characters, 70 per segment · Concatenated long SMS · Per-message segment preview
Networks
Singtel · StarHub · M1 · Country code +65 · mobile numbers are 8 digits after the country code, starting 8 or 9
Controls
Per-campaign throttling · Opt-out and suppression list handling · Send-window scheduling in local time (SGT, UTC+8) · Per-client sub-accounts for resellers
Get in Touch
Ready to start your bulk sms singapore project? Contact us today!
AdelSocial Technologies (OPC) Private Limited
115/3 Gautam Nagar, New Delhi 110049, India
Email: info@adelsocial.com
Phone: +91 97739 26687
WhatsApp: Chat with us
FAQ (Frequently Asked Questions)
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Learn More →Rates, regulations and operator details on this page were last reviewed on . Regulations change — if something here is out of date, tell us and we will fix it.
