Deliver messages across 190+ countries
Route SMS, WhatsApp, and voice traffic through a network of carrier integrations optimized for local delivery rates and compliance.
SMS delivery WhatsApp VoiceEnterprise
Communications infrastructure built for scale
The world's leading enterprises use Katembe to deliver messaging, verification, and voice workflows across every market.
SafaricomMTNVodacomFlutterwave
Global messaging
Reach customers in every market with a single API.
Guaranteed delivery with intelligent retry
Automatic failover and channel fallback ensure critical messages reach their destination even when primary routes fail.
Messaging docsTemplate management at enterprise scale
Manage sender IDs, message templates, and opt-out flows across regions from a single control plane.
Sender controlsIdentity and verification
Reduce fraud and friction across every onboarding flow.
Increase verification success rates by up to 12%
Adaptive OTP delivery selects the optimal channel and timing for each user, reducing drop-off and improving conversion.
OTP verification Phone intelligenceStop fraud before it starts
Phone number intelligence identifies risky traffic — VoIP, spoofed numbers, and disposable lines — before you commit to delivery.
Identity checksPlatform and operations
Operate communications infrastructure with confidence.
Real-time delivery visibility
Track every message from send to delivery. Webhook events, delivery receipts, and status dashboards give your team full operational control.
Webhooks Delivery statusCompliance built in
GDPR, TCPA, and regional opt-out requirements are handled at the infrastructure level so your team can focus on building.
Enterprise securitySLA-backed uptime with dedicated support
Enterprise contracts include uptime SLAs, a dedicated solutions engineer, and priority incident response.
Contact salesOptimization
Delivery optimization that improves with every message
Katembe's routing engine learns from billions of delivery events to select the best carrier path, timing, and channel for each recipient — automatically improving your success rates over time.
Intelligent carrier routing
Traffic is distributed across carrier partners in real time based on delivery performance, latency, and cost — with no manual configuration required.
Channel fallback
When SMS fails, automatically retry via WhatsApp or voice. Configurable fallback chains keep critical messages moving.
Adaptive OTP timing
OTP delivery is timed based on recipient activity patterns, reducing expiry-related drop-off for verification flows.
Suppression and compliance lists
Automatically suppress unsubscribed, invalid, and high-risk numbers across all campaigns and transactional flows.
99.999%
historical uptime for Katembe services
Use cases
Katembe for enterprise teams like yours
Fintech
Deliver fraud alerts, OTP verification, and payment notifications with the reliability your customers expect.
E-commerce
Send order confirmations, delivery updates, and re-engagement campaigns across every channel your customers use.
Platforms
Embed messaging and verification into your product with a single API that scales with your customer base.
Telecom
Operate high-volume A2P messaging with carrier-grade reliability, compliance tooling, and real-time reporting.
Resources
Recommended resources
Guide
Global messaging compliance guide
Navigate opt-out, sender registration, and content regulations across major markets.
Report
State of transactional communications
How enterprises are modernizing messaging infrastructure to improve delivery and cut costs.
Whitepaper
OTP verification best practices
Increase verification success rates while reducing fraud exposure.
Guide
WhatsApp for enterprise
Deploying WhatsApp Business API at scale — templates, opt-ins, and delivery.
Report
Carrier routing and delivery optimization
How intelligent routing improves SMS delivery rates across regions.
Whitepaper
Enterprise security and compliance
How Katembe protects your data and meets regional regulatory requirements.
Dedicated support
Dedicated support for your enterprise
Work with a solutions engineer to design your integration, optimize delivery, and scale your communications infrastructure.
Get a custom plan for your scale
Talk to our enterprise team about volume pricing, SLAs, and dedicated support.