Wholesale SMS Services for Global Messaging at Scale

Deliver high-volume, carrier-grade SMS traffic worldwide through our robust, high-availability messaging platform. Designed for telecom operators, resellers, and enterprises needing performance, reliability, and flexibility.

SMS Gateway for Every Business Need

Through the Wholesale SMS platform, ASTP offers an array of flexible messaging services – far exceeding simple send and receive text messages.

The SMS gateway is backed by our robust dedicated infrastructure for high availability and fault tolerance. With support for over 10,000 Transactions Per Second (TPS), the platform caters to the wholesale and bulk SMS termination market while offering the flexibility and features suited for enterprise and SMB use.

The gateway supports all industry-standard SMS exchange protocols with uncomplicated access provided through a single REST API.

Flexible Integration Options

Integrate directly through SMPP bind or REST API to send bulk SMS, power chatbots, automate alerts, or deliver marketing campaigns.

Bulk SMS

High-volume messaging for campaigns and customer notifications.

Chatbots & Automation

Enable two-way conversations and system-triggered alerts.

Security & Authentication

Send MFA and OTP codes instantly.

Marketing & Engagement

Create SMS-based outreach for your customers.

Key Features of Our SMS Gateway

Multiple Interconnections (SMPP v3.4 with TLS, HTTPS REST API)

2-Way SMS Traffic (Send & Receive)

Multipart, Unicode, Flash SMS, and Scheduled Delivery Support

Full Delivery Receipt (DLR) Support

Support for Custom SMSCs (Third-Party SMSC APIs)

SMS Modifiers: Custom traffic processing, prioritization, retry, filtering, throttling

White-Labeled Multi-Tier Gateway Partition Capability

Billing Management (Prepaid & Postpaid with configurable per-customer rates)

VPN Connectivity Supported

Ready to Scale Your Messaging Network?

Partner with ASTP’s high-performance SMS gateway to deliver reliable, carrier-grade messaging at global scale. From transactional alerts to marketing campaigns, our platform ensures speed, security, and scalability every step of the way.