North America · DX entity · DXCC 291

United States of America

United States of America is a DX entity in North America, in CQ zones 3, 4 and 5 and ITU zones 6, 7 and 8. Its primary prefix is K.

Flag of United States of America.

loading the map…

Figure 1. United States of America and its states, with neighbouring land in grey. Hover for names; scroll to zoom. Boundaries: Natural Earth, Admin 0 Map Subunits and Admin 1 States and Provinces, 1:10m, version 5.1.2 (13 May 2022), public domain, retrieved 2026-10-15. https://www.naturalearthdata.com/. DX entity boundaries assembled by The DX Atlas Project from the sources named, one recipe row per DXCC entity (subunits matched, merged, split by box or carved from a parent; DXEntity-Recipe.md), 2026. Simplified for this page to 0.03036 degrees, about 3 km; exported 30 October 2026. Projection: Lambert azimuthal equal-area centred on 37° N 95.9° W.

Data sheet

DXCC entity code	291
Name in the ADIF standard	UNITED STATES OF AMERICA
Continent	North America
Primary prefix	K
CQ zone	3, 4, 5
ITU zone	6, 7, 8

Prefixes

K is the primary prefix. The country files list 505 prefixes and prefix blocks for United States of America.

Show all prefixes

K AA AA0 AA5 AA6 AA7 AA8 AA9 AB AB0 AB5 AB6 AB7 AB8 AB9 AC AC0 AC5 AC6 AC7 AC8 AC9 AD AD0 AD5 AD6 AD7 AD8 AD9 AE AE0 AE5 AE6 AE7 AE8 AE9 AF AF0 AF5 AF6 AF7 AF8 AF9 AG AG0 AG5 AG6 AG7 AG8 AG9 AI AI0 AI5 AI6 AI7 AI8 AI9 AJ AJ0 AJ5 AJ6 AJ7 AJ8 AJ9 AK AK0 AK5 AK6 AK7 AK8 AK9 K0 K5 K6 K7 K8 K9 KA0 KA5 KA6 KA7 KA8 KA9 KB0 KB5 KB6 KB7 KB8 KB9 KC0 KC5 KC6 KC7 KC8 KC9 KD0 KD5 KD6 KD7 KD8 KD9 KE0 KE5 KE6 KE7 KE8 KE9 KF0 KF5 KF6 KF7 KF8 KF9 KG0 KG5 KG6 KG7 KG8 KG9 KI0 KI5 KI6 KI7 KI8 KI9 KJ0 KJ5 KJ6 KJ7 KJ8 KJ9 KK0 KK5 KK6 KK7 KK8 KK9 KM0 KM5 KM6 KM7 KM8 KM9 KN0 KN5 KN6 KN7 KN8 KN9 KO0 KO5 KO6 KO7 KO8 KO9 KQ0 KQ5 KQ6 KQ7 KQ8 KQ9 KR0 KR5 KR6 KR7 KR8 KR9 KS0 KS5 KS6 KS7 KS8 KS9 KT0 KT5 KT6 KT7 KT8 KT9 KU0 KU5 KU6 KU7 KU8 KU9 KV0 KV5 KV6 KV7 KV8 KV9 KW0 KW5 KW6 KW7 KW8 KW9 KX0 KX5 KX6 KX7 KX8 KX9 KY0 KY5 KY6 KY7 KY8 KY9 KZ0 KZ5 KZ6 KZ7 KZ8 KZ9 N N0 N5 N6 N7 N8 N9 NA0 NA5 NA6 NA7 NA8 NA9 NB0 NB5 NB6 NB7 NB8 NB9 NC0 NC5 NC6 NC7 NC8 NC9 ND0 ND5 ND6 ND7 ND8 ND9 NE0 NE5 NE6 NE7 NE8 NE9 NF0 NF5 NF6 NF7 NF8 NF9 NG0 NG5 NG6 NG7 NG8 NG9 NI0 NI5 NI6 NI7 NI8 NI9 NJ0 NJ5 NJ6 NJ7 NJ8 NJ9 NK0 NK5 NK6 NK7 NK8 NK9 NM0 NM5 NM6 NM7 NM8 NM9 NN0 NN5 NN6 NN7 NN8 NN9 NO0 NO5 NO6 NO7 NO8 NO9 NQ0 NQ5 NQ6 NQ7 NQ8 NQ9 NR0 NR5 NR6 NR7 NR8 NR9 NS0 NS5 NS6 NS7 NS8 NS9 NT0 NT5 NT6 NT7 NT8 NT9 NU0 NU5 NU6 NU7 NU8 NU9 NV0 NV5 NV6 NV7 NV8 NV9 NW0 NW5 NW6 NW7 NW8 NW9 NX0 NX5 NX6 NX7 NX8 NX9 NY0 NY5 NY6 NY7 NY8 NY9 NZ0 NZ5 NZ6 NZ7 NZ8 NZ9 W W0 W5 W6 W7 W8 W9 WA0 WA5 WA6 WA7 WA8 WA9 WB0 WB5 WB6 WB7 WB8 WB9 WC0 WC5 WC6 WC7 WC8 WC9 WD0 WD5 WD6 WD7 WD8 WD9 WE0 WE5 WE6 WE7 WE8 WE9 WF0 WF5 WF6 WF7 WF8 WF9 WG0 WG5 WG6 WG7 WG8 WG9 WI0 WI5 WI6 WI7 WI8 WI9 WJ0 WJ5 WJ6 WJ7 WJ8 WJ9 WK0 WK5 WK6 WK7 WK8 WK9 WM0 WM5 WM6 WM7 WM8 WM9 WN0 WN5 WN6 WN7 WN8 WN9 WO0 WO5 WO6 WO7 WO8 WO9 WQ0 WQ5 WQ6 WQ7 WQ8 WQ9 WR0 WR5 WR6 WR7 WR8 WR9 WS0 WS5 WS6 WS7 WS8 WS9 WT0 WT5 WT6 WT7 WT8 WT9 WU0 WU5 WU6 WU7 WU8 WU9 WV0 WV5 WV6 WV7 WV8 WV9 WW0 WW5 WW6 WW7 WW8 WW9 WX0 WX5 WX6 WX7 WX8 WX9 WY0 WY5 WY6 WY7 WY8 WY9 WZ0 WZ5 WZ6 WZ7 WZ8 WZ9

Sources: Jim Reisert AD1C, Big CTY country files, 15 September 2026. https://www.country-files.com/ (MIT licence); ADIF Development Group, ADIF Specification version 3.1.8 (2026-10-12), DXCC Entity Code enumeration. https://adif.org/; ARRL, DXCC List (current and deleted entities), January 2026. https://www.arrl.org/country-lists-prefixes; Flag: Flagpedia.net (flagcdn.com), SVG, public domain, retrieved 2026-10-10.