4-72 is a member of the largest distribution network physics: Universal Postal Union - UPU, agency specialist headquartered in Bern, Switzerland. a organization with 5 million employees operating in 193 countries, which constitutes the main forum cooperation between postal sector actors that keeps a truly universal network modern products and services. National Postal Services SA is the official postal operator Colombia and therefore are the only service providers Mail Domestic and International Money Orders. We are the company which has been assigned the responsibility to ensure a universal postal service quality, competitive and universal. We offer a broad portfolio of products and services and courier expressed by the greater network coverage nationwide.