 By 1909/10, over 118 million parcels annually were being carried in the U.K., around 2.5% of which were international.The United States, as a signatory, started foreign parcel services in 1887 but did not institute domestic services until 1913.The USPS, successor to the U.S. Post Office, officially ended International Parcel Post service in May 2007 after some 120 years of existence.