The countries contains the nuclear weapon are namely with other information listed below.
The only country that use it is the United States of America in 2nd world war.
| Country | Warheads active/total[nb 1] | Date of first test | CTBTstatus[5] |
|---|---|---|---|
| The five nuclear-weapon states under the NPT | |||
 United States | 2,150 / 7,700[3] | 16 July 1945 ("Trinity") | Signatory |
 Russia | 1,800 / 8,500[3] | 29 August 1949 ("RDS-1") | Ratifier |
 United Kingdom | 160 / 225[3] | 3 October 1952 ("Hurricane") | Ratifier |
 France | 290 / 300[3] | 13 February 1960 ("Gerboise Bleue") | Ratifier |
 China | n.a. / 250[3] | 16 October 1964 ("596") | Signatory |
| Non-NPT nuclear powers | |||
 India | n.a. / 90–110[3] | 18 May 1974 ("Smiling Buddha") | Non-signatory |
 Pakistan | n.a. / 100–120[3] | 28 May 1998 ("Chagai-I") | Non-signatory |
 North Korea | n.a. / <10[3] | 9 October 2006[6] | Non-signatory |
| Undeclared nuclear powers | |||
 Israel | n.a. / 60-200[3][7] | Unknown (possibly 22 September 1979) | Signatory |
