In the 6th post of the “Demystifying the US Messaging Ecosystem” series, the focus shifts to Toll-Free Texting and Short Codes as essential channels for enterprises. While 10DLC texting has gained traction, Short Codes and Toll-Free Numbers remain critical due to their established trust and reliability. The TSS Registry plays a vital role in ensuring authorized text enablement for TFNs, enhancing message integrity. The post emphasizes the importance of regulatory frameworks and evolving compliance standards while highlighting the unique attributes of these messaging channels.