Washington, D.C. Address Generator

The District's own address standard is unusually explicit about the quadrant: NE, NW, SE and SW are critical to locating an address and must be incorporated into every one of them. Addresses radiate from the US Capitol, which is the origin of all four quadrants and, as the standard notes, the only building in the city whose address carries no quadrant at all. Even numbers are assigned on the left and odd numbers on the right, judged facing away from the Capitol.

That makes the quadrant the single most load-bearing token in a Washington address. 100 G Street exists four times over, one in each quadrant, and they are different places. A form that treats the quadrant as an optional decoration on the street name — or a normaliser that trims trailing tokens — produces an address that is not merely wrong but ambiguous, and no downstream lookup can recover it.

The District is also the exception to a rule this site relies on elsewhere. Measured across the whole postal dataset, only 6 of 926 three-digit prefixes appear in more than one state, and 205 is one of them: it covers the District, Maryland and Virginia — though in practice it is 70 District codes and exactly one on each side of the line. So "the prefix implies the state" is a good rule with a short list of exceptions, and the capital is on it.

Two more DC-specific facts for a fixture set. It is not a state, so it has exactly one county-equivalent and any dropdown built from a state list needs a deliberate entry for it. And of the 277 postal codes published for the District, only a couple of dozen take ordinary residential street mail — the rest are PO-Box, federal-agency and single-facility codes, which is why the generator's DC pool is much smaller than the raw count suggests.

Random Washington, D.C. phone numbers here use the state's real area code — 202 — with the 555-01XX line range the North American Numbering Plan reserves for fiction, so a number such as (202) 555-0182 passes format and area-code checks yet can never ring anyone. Every profile this page generates carries one that agrees with its Washington, D.C. address; for a batch of numbers on their own, the random Washington, D.C. phone number generator draws from the same range with any US area code.

Three examples in the reserved range: (202) 555-0182, (202) 555-0101, (202) 555-0162. Area codes are geographic, so a Washington, D.C. address paired with a non-DC area code fails the consistency check that fraud systems and good validators run — which is why this page pins both to Washington, D.C.. How area codes are assigned, and why the 555 block exists, are covered in how US area codes work and why fake phone numbers start with 555.