Bulk SMS in Kenya: Pricing, Sender IDs and How to Use SMS to Grow Your Business
Everything you need to know about bulk SMS — costs, sender ID registration on Safaricom, Airtel and Telkom, and messages that work.
By Wycliffe Bundi, Business Development Executive

Email gets ignored and social posts get buried, but an SMS is usually read within minutes. For Kenyan businesses, bulk SMS remains one of the most reliable and affordable ways to reach customers — whether they use a smartphone or a basic phone.
What bulk SMS is used for
- Fee, rent and loan repayment reminders
- Order confirmations and delivery updates
- Appointment reminders for clinics and salons
- Promotions and new product announcements
- Event notices for schools, churches and associations
- One-time passwords and account alerts
Bulk SMS pricing at WikiTeq
- Bulk SMS: KSh 0.60 per SMS
- Sender ID registration (Safaricom and Airtel): KSh 7,500 one-time fee
- Sender ID registration (Telkom): KSh 6,000 one-time fee
What is a sender ID and why register one?
A sender ID is the name that appears in place of a phone number when your message arrives — for example, your business name. It makes messages instantly recognisable, builds trust and reduces the chance customers ignore or report your SMS. Each mobile network registers sender IDs separately, which is why registration is priced per network.
Writing SMS that get results
- Identify yourself — even with a sender ID, mention the business or service
- One message, one purpose — a reminder or an offer, not both
- Keep it short — one SMS is 160 characters; longer messages cost more
- Include a clear action — a paybill number, a link or a phone number
- Respect timing — avoid very early mornings and late nights
- Offer opt-out for promotional messages
Automating SMS from your systems
The biggest value comes when SMS is triggered automatically: a receipt when payment is recorded, a reminder when a balance is due, a notice when an order ships. We connect SMS to school, property, retail and custom systems so the right message goes out without anyone pressing send.
Keeping your contact list healthy
Collect numbers with consent, keep them in one place, remove numbers that fail, and segment lists so customers only receive relevant messages. A smaller, accurate list beats a large outdated one.
Ready to start? See our bulk SMS service or chat with us on WhatsApp to register your sender ID.
Need help putting this into practice?
Our team offers a free first consultation.
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