The Cheyenne (SSN 773) is the 62nd and the last Los Angeles-class attack submarine. She is the third ship of the U.S. Navy to be named for Cheyenne, Wyoming. The contract to build her was awarded to Newport News Shipbuilding and Dry Dock Company in Newport News, Virginia, on November 28, 1989, and her keel was laid down on July 6, 1992. She was christened on April 1, 1995; Mrs. Ann Simpson, the wife of Wyoming Senator Alan K. Simpson, servrd as sponsor of the ship; Cmdr. Peter H. Ozimik is the prospective commanding officer.

April 16, The Pre-Commissioning Unit (PCU) Cheyenne was launched in the water for the first time.

September 13, 1996 USS Cheyenne was commissioned during a ceremony at Naval Station Norfolk, Va.

From June 20 through July 2, 2000, the Cheyenne was underway in support of Rim of the Pacific (RIMPAC) exercise.

August 23, USS Cheyenne departed Pearl Harbor for a scheduled deployment in the U.S. 5th and 7th Fleet Areas of Responsibility, as part of the USS Abraham Lincoln (CVN 72) Battle Group. Port call to Yokosuka, Japan, from Sept. 8-15.

November 10, SSN 773 pulled into Changi Naval Base for a week-long port visit to Singapore. Port calls to Manama, Bahrain, from Dec. 14-17 and 24-28th.

January 12, 2001 The Cheyenne arrived in HMAS Stirling for a five-day port visit to Perth, Australia. Port call to Hobart, Tasmania, from Jan. 22-27.

February 6, The Los Angeles-Improved class attack submarine pulled into Apra Harbor, Guam, for a seven-day port call.

February 23, USS Cheyenne returned to homeport after a six-month deployment.

May 29, The Cheyenne entered the Pearl Harbor Naval Shipyard for a four-month Selected Restricted Availability (SRA). Underway for Tactical Weapons Proficiency from Nov. 10-19; Underway for commanding officer's discretionary time from Nov. 26- Dec. 3.

February 20, 2002 Cmdr. Charles J. Doty relieved Cmdr. William C. Stacia, Jr., as commanding officer of the Cheyenne.

July 31, USS Cheyenne departed Naval Station Pearl Harbor, with the Lincoln Carrier Strike Group, in support of Operation Enduring Freedom. Port call to Yokosuka, Japan, from Aug. 9-16 for voyage repairs; Brief port call to White Beach, Okinawa, on Aug. 19; Another visit to Yokosuka from Sept. 20-28.

October 1, SSN 773 arrived in Saipan, Northern Mariana Islands, for a six-day of liberty. Port calls to Apra Harbor, Guam, from Oct. 8-11 and Nov. 18- Dec. 5 for voyage repairs.

December 9, The Cheyenne pulled into White Beach Naval Facility in Okinawa, Japan, for a two-day liberty port call.

December 23, USS Cheyenne arrived in HMAS Stirling at Garden Island, Australia, for a 10-day of liberty.

January 13, 2003 The Los Angeles-Improved class attack submarine pulled again into Apra Harbor for a two-wek port call to get tender support services. Brief visit to Diego Garcia, British Indian Ocean Teritory, on Feb. 9.

March 20, USS Cheyenne launched its first Tomahawk Land Attack Missiles (TLAMs) in support of Operation Iraqi Freedom, from the station in the Red Sea. By March 26, SSN 773 fired its entire TLAM inventory; Brief port visit to Guam on April 17.

April 24, USS Cheyenne returned to homeport after a nine-month combat deployment.

July 22, The Cheyenne recently entered the dry-dock at Pearl Harbor Naval Shipyard for a three-month Selected Restricted Availability (SRA).

May 1, 2004 SSN 773 pulled into Naval Submarine Base Point Loma in San Diego for a five-day port call after conducting routine operations off the coast of southern California. Port call to Naval Submarine Base Bangor, Wash, from May 9-10.

May 14, USS Cheyenne arrived in Esquimalt, B.C., Canada, for a four-day port visit. Returned home on May 27 after a seven-week underway period.

June 4, Cmdr. Richard Testyon, Jr., relieved Cmdr. Charles J. Doty as CO of the Cheyenne during a change-of-command ceremony at the Pearl Harbor Naval Station.

October 8, USS Cheyenne departed Pearl Harbor for a western Pacific deployment. Port call to Apra Harbor, Guam, from Oct. 16-18.

October 28, The Cheyenne pulled into White Beach, Okinawa, for a brief port call before participating in a Tactical Anti-Submarine Warfare Exercise (TASWEX) '04, from Oct. 29- Nov. 10.

November 22, The Los Angeles-Improved class attack submarine pulled again into Apra Harbor for a 10-day voyage repairs after participating in Annual Exercise (ANNUALEX) 2004, from Nov. 10-19.

December 13, USS Cheyenne arrived in Changi Naval Base, Singapore, for a six-day port visit.

November 21, 2007 The Cheyenne returned to Naval Station Pearl Harbor after a six-month deployment.

November 21, 2009 USS Cheyenne completed its 16-month Depot Modernization Period (DMP) at Pearl Harbor Naval Shipyard (PHNSY) and Intermediate Maintenance Facility (IMF).

December 4, Cmdr. Gary A. Rogeness relieved Cmdr. Michael J. Tesar as CO of the Cheyenne during a change-of-command ceremony at Pearl Harbor.

May 5, 2010 USS Cheyenne, in conjunction with Commander, U.S. 7th Fleet and members of Naval Special Warfare Group (NSWG) 3, successfully fired a Block IV-E Tomahawk Land Attack Missile. The missile launch took place off the southern coast of California into China Lake Test Range and marks the first time a forward-deployed operational command acted as the Tomahawk strike coordinator and primary missile controller for an operational test launch.

November 19, SSN 773 departed Joint Base Pearl Harbor-Hickam for a Friends and Family Cruise to Maui.

April 1, 2011 USS Cheyenne departed Pearl Harbor for a scheduled western Pacific deployment.

September 14, The Cheyenne pulled into Fleet Activities Yokosuka for a routine port call.

September 30, USS Cheyenne returned to homeport after a six-month deployment. The submarine traveled more than 25,000 n.m. and visited Saipan, Singapore and Guam.

May 11, 2012 Cmdr. Noel J. Gonzalez relieved Cmdr. Gary A. Rogeness as CO of the Cheyenne during a change-of-command ceremony aboard the sub at Pearl Harbor.

December 13, USS Cheyenne departed Joint Base Pearl Harbor-Hickam for a scheduled western Pacific deployment.

February 1, 2013 SSN 773 pulled into Subic Bay, Republic of the Philippines, for a routine port call.

March 20, The Cheyenne moored at Busan Naval Base for a routine port call to Republic of Korea following its participation in the bilateral annual exercise Foal Eagle.

April 9, The Los Angeles-Improved class attack submarine pulled into Apra Harbor, Guam, for a routine port call.

May 24, The Cheyenne moored at Berth 13S in Fleet Activities Yokosuka, Japan, for a week-long port call.

June 14, USS Cheyenne returned to Pearl Harbor after a six-month deployment.

September 12, 2014 Cmdr. John W. Stafford relieved Cmdr. Noel J. Gonzalez as CO of SSN 773 during a change-of-command ceremony on board the sub at Pearl Harbor.

January 6, 2015 USS Cheyenne departed Joint Base Pearl Harbor-Hickam for local operations; Brief stop at Pearl Harbor for personnel transfer on Jan. 12.

July 23, USS Cheyenne departed homeport for routine training in the Hawaiian Op. Area; Brief stop at Pearl Harbor for personnel transfer on July 27; Underway for local operations on Aug. 31.

September 8, USS Cheyenne departed Pearl Harbor for a scheduled western Pacific deployment.

September 19, The Cheyenne made a brief stop off White Beach Naval Facility in Okinawa, Japan, for personnel transfer; Brief stop off Yokosuka on Oct. 9.

November 28, SSN 773 moored outboard the USS Emory S. Land (AS 39) at Alava Pier in Subic Bay, Philippines, for a Fleet Maintenance Availability (FMAV); Brief stop at White Beach, Okinawa, on Dec. 9.

January 18, 2016 USS Cheyenne moored at Berth 13S, Fleet Activities Yokosuka for a week-long port visit.

February 5, USS Cheyenne moored at Wharf S1B on Joint Base Pearl Harbor-Hickam following a five-month deployment.

July 11, The Cheyenne departed Pearl Harbor to participate in at-sea phase of a biennial multinational exercise Rim of the Pacific (RIMPAC) 2016, in the Hawaiian Op. Area.

December 6, The Cheyenne is currently moored at Wharf S21A on Joint Base Pearl Harbor-Hickam.

January 18, 2017 The Los Angeles-Improved class attack submarine departed Pearl Harbor for a VIP Cruise.

March ?, USS Cheyenne departed Pearl Harbor for a scheduled western Pacific deployment.

April 17, The Cheyenne made a brief stop in Sasebo Harbor, Japan, for personnel transfer; Brief stop in Sasebo again on April 18 and April 21; Moored at Akasaki Pier in Fleet Activities Sasebo from May 2-8.

June 6, USS Cheyenne moored at Berth 1 in Busan Naval Base, ROK, for a scheduled port visit.

July 11, SSN 773 moored at Akasaki Pier in Fleet Activities Sasebo for a routine port call; Brief stop at White Beach, Okinawa, on Aug. 17.

September 8, USS Cheyenne moored at Wharf S10 on Joint Base Pearl Harbor-Hickam following a six-month deployment.

September 14, Cmdr. John T. Gonser relieved Cmdr. John W. Stafford as CO of the Cheyenne during a change-of-command ceremony on board the sub.

October 19, USS Cheyenne departed homeport for routine operations in the Hawaiian Op. Area.?

February 16, 2018 The Cheyenne moored at Wharf S21A on Joint Base Pearl Harbor-Hickam; Underway again from March 21-29.

April 26, The Cheyenne moored at Wharf Y3A on Joint Base Pearl Harbor-Hickam after a 10-day underway in the Hawaiian Op. Area.?

June 8, USS Cheyenne moored at Wharf S1A after underway for routine operations in the Hawaiian Op. Area; Underway again on June 18; Moored at Wharf Y2 on June 2?; Underway again on Aug. 20.?

October ?, USS Cheyenne departed Pearl Harbor for a scheduled western Pacific deployment.

October 27, The Cheyenne made a brief stop off White Beach Naval Facility in Okinawa, Japan, for supplies; Participated in a photo exercise (PHOTOEX), at the conclusion of the biennial exercise Keen Sword 19, on Nov. 8; Brief stop off White Beach again on Nov. 21 and Dec. 12.

December 21, SSN 773 moored at Akasaki Pier on Fleet Activities Sasebo, Japan, for a six-day liberty port visit; Brief stop off Sasebo for personnel transfer on Jan. 2, 5 and 7th.

January 28, 2019 USS Cheyenne moored at Berth 13S on Fleet Activities Yokosuka, Japan, for a four-day port visit; Inport Yokosuka again, after participated in the Japan Maritime Self-Defense Force (JMSDF) Submarine Competition (SUBCOMP), from Feb. 26- March 4.

April 26, USS Cheyenne moored at Wharf S11 on Joint Base Pearl Harbor-Hickam following a six-month deployment.

May 28, The Cheyenne moored at Wharf W5, Naval Magazine Lualualei for ammo offload; Moored at Wharf S21A on May 31.?

July 15, 2020 USS Cheyenne departed Pearl Harbor for a scheduled Indo-Pacific deployment.

October 30, The Cheyenne moored at Berth 13S in Fleet Activities Yokosuka for a one-day port call.

December 29, USS Cheyenne moored at Wharf S21A on Joint Base Pearl Harbor-Hickam following a five-and-a-half month deployment.

January 22, 2021 Cmdr. Samuel Bell relieved Cmdr. John T. Gonser as CO of the Cheyenne during a change-of-command ceremony on board the sub.

June 25, USS Cheyenne made a brief stop off Naval Station Norfolk, Va., for personnel transfer; Moored at Pier 6S in its new homeport of Naval Submarine Base New London in Groton, Conn., on June 28.

July ?, The Cheyenne entered the floating dry-dock Shippingport (ARDM 4); Undocked and moored at Pier 17N on Nov. 4; Underway on Nov. 2?.

November 23, USS Cheyenne moored pierside at Portsmouth Naval Shipyard in Kittery, Maine, for a two-and-a-half year Engineered Overhaul (EOH); Entered the Dry Dock #1 on April ?, 2022.

March 24, 2023 Cmdr. Kyle F. Calton relieved Cmdr. Samuel Bell as CO of the Cheyenne during a change-of-command ceremony on Portsmouth Naval Shipyard.