The collection of numbers identifies particular geographic supply routes throughout the southeastern Virginia metropolis. For example, one such sequence may junk mail to a residential space close to the James River, whereas one other serves the industrial district alongside Warwick Boulevard.
These numerical codes are important for environment friendly mail sorting and supply by the US Postal Service. Their use ensures packages and letters attain supposed recipients promptly. Traditionally, these codes have developed to satisfy the rising calls for of a populous city middle.