David Wang
-Updated on June 24, 2026
What is the difference between registered mail and Speedpost?
Registered mail (RR or RA prefix) is an economical option that adds tracking and a signature to letters and small packets, with delivery in roughly 7-14 working days internationally. Speedpost (EE prefix) is the premium express service through the EMS network, with faster delivery, usually 3-5 working days to major destinations, and full tracking.