Hey guys, here is a list of the dreadnoughts in service with the UNSC Navy.
UNSC wartime dreadnoughts: Earth-class
*UNSC Star of Earth (DN-01) - 1st Fleet (Sol Aegis, destroyed over Mars, c. 2552)
*UNSC Thor (DN-02) - 1st Fleet (Sol Aegis, destroyed over Ganymede, c. 2552)
*UNSC Chancellorsville (DN-03) - 1st Fleet (Sol Aegis, destroyed over Sidewinder, c. 2552)
*UNSC Skopje (DN-04) - 1st Fleet (Sol Aegis, mothballed in 2554, replaced by the UNSC Montana; capture by NCA forces in 2558, renamed NCA Liberator, destroyed over Reach)
UNSC peacetime dreadnoughts: Montana-class (13 completed, 5 undergoing trials, 9 under construction, 10 more planned; PCU - Pre-commissioned unit, UC - Under construction]
*UNSC Montana (DNG-05)
*UNSC Iowa (DNG-06)
*UNSC South Carolina (DNG-07)
*UNSC Illinois (DNG-08)
*UNSC Wisconsin (DNG-09)
*UNSC California (DNG-10)
*UNSC New York (DNG-11)
*UNSC Alaska (DNG-12)
*UNSC Colorado (DNG-13)
*PCU - UNSC South Dakota (DNG-14)
*PCU - UNSC West Virginia (DNG-15)
*PCU - UNSC Idaho (DNG-16)
*PCU - UNSC Hawaii (DNG-17)
*PCU - UNSC Guam (DNG-18)
*UC - UNSC North Dakota (DNG-19)
*UC - UNSC Oregon (DNG-20)
*UC - UNSC Nevada (DNG-21)
*UC - UNSC Texas (DNG-22)
*UC - UNSC Utah (DNG-23)
*UC - UNSC Pennsylvania (DNG-24)
*UC - UNSC Massachusetts (DNG-25)
*UC - UNSC Washington (DNG-26)
*UC - UNSC Rhode Island (DNG-27)
*UC - UNSC Georgia (DNG-28)
Hope you like this. Up next is the UNSC's battleships. The Earth-class dreadnoughts tested out a lot of the Post war tech such as better shields and the post war dreadnoughts are being named after U.S. states and territories.