¹ Unofficial prefix.

² (5T) Only contacts made June 20, 1960, and after, count for this entity.

³ (5U) Only contact made August 3, 1960, and after, count for this entity.

⁴ (6W) Only contacts made June 20, 1960, and after, count for this entity.

⁵ (7O) Only contacts made May 22, 1990, and after, count for this entity.

⁶ (9A, S5) Only contacts made June 26, 1991, and after, count for this entity.

⁷ (9G) Only contacts made March 5, 1957, and after, count for this entity.

⁸ (9M2, 4, 6, 8) Only contacts made September 16, 1963, and after, count for this entity.

⁹ (9U, 9X) Only contacts made July 1, 1962, and after, count for this entity.

¹⁰ (9V) Contacts made from September 16, 1963 to August 8, 1965, count for West Malaysia.

¹¹ (BS7) Only contacts made January 1, 1995, and after, count for this entity.

¹² (BV9P) Only contacts made January 1, 1994, and after, count for this entity.

¹³ (D6, FH8) Only contacts made July 6, 1975, and after, count for this entity.

¹⁴ (DA-DR) Only contacts made with DA-DR stations September 17, 1973, and after, and contacts made with Y2-Y9 stations October 3, 1990 and after, count for this entity.

¹⁵ (E3) Only contacts made November 14, 1962, and before, or May 24, 1991, and after, count for this entity.

¹⁶ (FO) Only contacts made after 23:59 UTC, March 31, 1998 count for this entity.

¹⁷ (FR) Only contacts made June 25, 1960, and after, count for this entity.

¹⁸ (H40) Only contacts made after 23:59 UTC, March 31, 1998 count for this entity.

¹⁹ (JD) Formerly Marcus Island.

²⁰ (JD) Formerly Bonin and Volcano Islands.

²¹ (KC6) Includes Yap Islands December 31, 1980, and before.

²² (KP5, KP4) Only contacts made March 1, 1979, and after, count for this entity.

²³ (OK-OL, OM) Only contacts made January 1, 1993, and after, count for this entity.

²⁴ (P2) Only contacts made September 16, 1975, and after, count for this entity.

²⁵ (P4) Only contacts made January 1, 1986, and after, count for this entity.

²⁶ (P5) Only contacts made May 14, 1995, and after count for this entity.

²⁷ (S0) Contacts with Rio de Oro (Spanish Sahara), EA9, also count for this entity.

²⁸ (T2) Only contacts made January 1, 1976, and after, count for this entity.

²⁹ (T9) Only contacts made October 15, 1991 and after count for this counrty.

³⁰ (TL) Only contacts made August 13, 1960, and after, count for this entity.

³¹ (TN) Only contacts made August 15, 1960, and after, count for this entity.

³² (TR) Only contacts made August 17, 1960, and after, count for this entity.

³³ (TT) Only contacts made August 11, 1960, and after count for this entity.

³⁴ (TU) Only contacts made August 7, 1960, and after, count for this entity.

³⁵ (TY) Only contacts made August 1, 1960, and after, count for this entity.

³⁶ (TZ) Only contacts made June 20, 1960, and after, count for this entity.

³⁷ (V4, VP2) For DXCC credit for contacts made May 31, 1958 and before, see page 97, June 1958 QST.

³⁸ (V6) Includes Yap Islands January 1, 1981, and after.

³⁹ (XT) Only contacts made August 5, 1960, and after, count for this entity.

⁴⁰ (YB) Only contacts made May 1, 1963, and after, count for this entity.

⁴¹ (Z3) Only contacts made September 8, 1991, and after, count for this entity.

⁴² (ZC4) Only contacts made August 16, 1960, and after, count for this entity.

⁴³ (E4) Only contacts made February 1, 1999, and after, count for this entity.

⁴⁴ (4W) Only contacts made March 1, 2000, and after, count for this entity.

⁴⁵ (FK/C) Only contacts made March 23, 2000, and after, count for this entity.

⁴⁶ (VP6) Only contacts made November 16, 2001, and after, count for this entity.

⁴⁷ (4O) Only contacts made June 28, 2006 and after count for this entity.

⁴⁸ (KH8 - Swains I.) Only contacts made July 22, 2006 and after count for this entity.

"F" indicates current list of entities for which QSLs may be forwarded by the ARRL membership outgoing QSL service.

"T" indicates entities with which U.S. amateurs may legally handle third-party message traffic.

"S" Also 3Y, 8J1, AT0, DP0, FT8Y, LU, OR4, R1AN, VK0, VP8, ZL5, ZS1, ZX0, etc. QSL via entity under whose auspices the particular station is operating. The availability of a third-party traffic agreement and a QSL Bureau applies to the entity under whose auspices the particular station is operating.

"#" Third-party traffic permitted with special-events stations in the United Kingdom having the prefix GB only, with the exception that GB3 stations are not included in this agreement.