In a postal system, a delivery point (sometimes DP) is a single mailbox or other place at which mail is delivered. It differs from a street address, in that each address may in fact have several delivery points, such as an apartment flat, office department, or other room. Such a building (mainly only residential) is often called a multiple-dwelling unit (MDU) by the USPS. A British pillar box The postal system is a system by which written documents typically enclosed in envelopes, and also small packages containing other matter, are delivered to destinations around the world. ... A system is an assemblage of inter-related elements comprising a unified whole. ... A British pillar box The postal system is a system by which written documents typically enclosed in envelopes, and also small packages containing other matter, are delivered to destinations around the world. ... An address is a code and abstract concept expressing the fixed location of a home, business or other building on the earths surface. ... Borj-e Sefid apartments in Tehran, Iran An apartment (or flat in Britain and other Commonwealth countries) is a self-contained housing unit that occupies only part of a building. ... An office is a room or other area in which people work, but may also denote a position within an organisation with specific duties attached to it (see officer, office-holder, official); the latter is in fact an earlier usage, office as place originally referring to the location of one... The word department has a number of meanings: It can mean an administrative sector of the government. ... A room is an enclosed space in a house or other building. ... A residential area is a type of land use where the predominant use is residential. ... A USPS truck in San Francisco A smaller truck used in suburban areas This article describes the United States Postal Service. ...

United States Postal Service usage

In the US Postal System, delivery point (also abbreviated DPB) is a specific set of digits between 00 and 99 assigned to every official, deliverable address in the United States and its territories served by the USPS. Combined with the ZIP+4 code, this results in a unique, numeric identifier for every address served by the USPS. It is normally encoded in the POSTNET barcode making automated mail sorting possible from a nationwide level all the way down to ordering mail in the order that the postal carrier delivers it (walk sequence.) However, the delivery point is almost never printed in human readable form; as such, it is normally stored separately and usually combined with one more digit called the check digit. This extra digit is used by Barcode Sorters (BCS) to verify the ZIP, ZIP+4, or Delivery Point ZIP code is valid. In a database, storing the ZIP+4 code in a 10 character field (with hyphen) allows easy output in the address block, and combining the check digit in a 3-digit DPB field (instead of calculating it) verifies that the ZIP or DPB have not been changes independently. The delivery point digits (as well as the +4 add on) should always be added/verified using an up-to-date CASS certified program in order to receive the appropriate barcode discount. A USPS truck in San Francisco A smaller truck used in suburban areas This article describes the United States Postal Service. ... Mr. ... For other senses of the word code, see code (disambiguation). ... POSTNET is a barcode symbology that is used by the United States Postal Service to assist in directing mail. ... Wikipedia encoded in Code 128-B Wikipedia, the free encyclopedia encoded in the DataMatrix 2D barcode A barcode (also bar code) is a machine-readable representation of information in a visual format on a surface. ...

In general, since each city block or section of a rural route has a different sub-ZIP (the +4 part), and address numbers generally increase by 100 per block, the DP is the last two digits of most addresses. It may also be the last two digits of a suite number, or the floor number. However, the normal practice in the U.S. is to assign each post office box its own ZIP+4 code; in such cases, the delivery point is redundant. City Blocks are a part of the fictional universe recounted in the Judge Dredd series that appears in the UK comic book 2000 AD. // Overview Also known as starscrapers or stratoscrapers (compare skyscraper), they are the most common form of mass-housing in Mega-City One, averaging a population of... Rural delivery service, formerly known as Rural Free Delivery (RFD), is the service by which the U.S. post office delivers mail directly to residents in rural areas. ... A suite is the location of a business within a shopping mall or office building. ... A hardwood floor (parquetry) is a popular feature in many houses. ... A Post Office box is a uniquely-addressable lockable box located on the premises of a Post Office station. ...