Long Codes are 10-digit mobile numbers (e.g., 919876543210) used for two-way messaging, cost-effective and ideal for customer support or low-volume campaigns. Short Codes are 5-6 digit numbers (e.g., 56161), designed for high-volume, automated interactions like contests or voting, with faster delivery but higher costs. Choose Long Codes for personal touch, Short Codes for scale—both available through our SMS gateway at SMSGatewayCenter.