Long Codes are 10-digit numbers used for two-way SMS and calls. They’re cost-effective, quick to set up, and ideal for international and large-scale communication.
Short Codes are 5–6 digit numbers used for high-volume messaging like promotions and alerts. They’re more expensive and take longer to activate but are great for mass campaigns.
Bulk Messaging involves sending large volumes of SMS for marketing, fraud control, and communication purposes. It’s widely used by media companies, businesses, banks, and brands.Modern SMS services now offer bulk messaging, single messages (e.g., OTPs), interactive chats, and inbound services like voting and mobile ads.



