A-31

Mentioned-only location
A-31
Factions	United States of America
Mentioned in	Fallout 4

A-31 was an American monitoring station.

Background

In November 2075, agents here spotted unidentified submarines, alongside station B-19. These contacts were rumored to be stealth subs of the Chinese "Ghost Fleet."

Appearances

Monitoring station A-31 is mentioned only in Fallout 4.

References

Fallout 4 locations Major faction locations Brotherhood of Steel The Prydwen · Boston Airport · Cambridge Police Station The Railroad Railroad HQ · Old North Church · Ticonderoga Commonwealth Minutemen Sanctuary Hills · The Castle The Institute The Institute · C.I.T. ruins Gunners Greenetech Genetics · Gunners plaza · Quincy ruins · Vault 75 · Vault 95 Raiders Beantown Brewery · Combat Zone · Corvega assembly plant · Dunwich Borers · East Boston Preparatory School · Federal ration stockpile · Libertalia · Quincy Quarries · Thicket Excavations · USAF Satellite Station Olivia · Walden Pond Greater Boston Neighborhoods - West Cambridge Cambridge Police Station · Cambridge Polymer Labs · Cambridge campus diner · Cambridge crater · Campus law offices · C.I.T. ruins · College Square · College Square station · Collegiate administration building · Fraternal Post 115 · Greenetech Genetics · Kendall Hospital · Monsignor Plaza · The Institute Charlestown BADTFL regional office · Bunker Hill · USS Constitution · Weatherby Savings & Loan The Fens Back Street Apparel · Fens Street sewer · Hangman's Alley · Hardware Town · Parkview Apartments · Police Precinct 8 · Wreck of the USS Riptide Diamond City Abbot's house · All Faiths Chapel · Chem-I-Care · Choice Chops · Colonial Taphouse · Commonwealth Weaponry · Diamond City Market · Diamond City Radio · Diamond City Surplus · Dugout Inn · Home Plate · Power Noodles · Publick Occurrences · Schoolhouse · Science! Center · Sheng Kawolski's house · Swatters · Valentine Detective Agency Esplanade Charles View Amphitheater · HalluciGen, Inc. Back Bay Boston Public Library · Dartmouth Professional Building · Hubris Comics · Layton Towers · Trinity Plaza · Trinity Tower · Vault 114 · Wilson Atomatoys corporate HQ Beacon Hill Boston Bugle building · Cabot House · Vault-Tec Regional HQ Greater Boston Neighborhoods - East North End Pickman Gallery · Old North Church Boston Common Boylston Club · Massachusetts State House · Old Granary burying ground · Park Street station · Swan's Pond Financial District Fallen skybridge · Faneuil Hall · Garden terrace · Haymarket Mall · Mass Fusion building · Old Corner Bookstore · Postal Square Goodneighbor Daisy's Discounts · Hotel Rexford · Kill or Be Killed · Memory Den · Old State House · The Third Rail · Warehouses Theater District Combat Zone · D.B. Technical High School · Hester's Consumer Robotics · Mass Bay Medical Center · Medical Center metro Boston Harbor Custom House Tower · Harbormaster Hotel · The Shamrock Taphouse · Yangtze East Boston Boston Airport · East Boston Preparatory School · East Boston police station · Easy City Downs · Fort Strong · The Prydwen South Boston Andrew station · Big John's Salvage · Four Leaf fishpacking plant · General Atomics factory · Gwinnett Brewery · The Gwinnett Restaurant · South Boston High School · South Boston military checkpoint · South Boston police department · The Castle · University Point Vault-Tec Vaults Vault 75 · Vault 81 · Vault 95 · Vault 111 · Vault 114 Player Settlements Abernathy farm · Boston Airport · Bunker Hill · The Castle · Coastal cottage · County crossing · Covenant · Croup Manor · Egret Tours Marina · Finch farm · Graygarden · Greentop Nursery · Hangman's Alley · Home Plate · Jamaica Plain · Kingsport Lighthouse · Murkwater construction site · Nordhagen beach · Oberland station · Outpost Zimonja · Red Rocket Truck Stop · Sanctuary Hills · The Slog · Somerville Place · Spectacle Island · Starlight Drive In · Sunshine Tidings co-op · Taffington boathouse · Tenpines Bluff · Warwick homestead The Commonwealth individual locations Lexington and Northwest Commonwealth Abernathy farm · Bedford Station · Concord (Museum of Freedom) · Drumlin Diner · Gorski cabin · Lexington (Corvega assembly plant · Lexington apartments · Mystic Pines · Super Duper Mart) · Lonely Chapel · Ranger cabin · Red Rocket Truck Stop · Robotics disposal ground · Sanctuary Hills · Starlight Drive In · Sunshine Tidings co-op · Tenpines Bluff · Thicket Excavations · Vault 111 · USAF Satellite Station Olivia · Walden Pond · Wicked Shipping Fleet Lockup Medford and North Central Commonwealth Breakheart Banks · County Crossing · Covenant · Dark Hollow Pond · Finch farm · General Atomics Galleria · Greentop Nursery · Irish Pride Industries shipyard · Lake Quannapowitt · Listening Post Bravo · Lynn Woods · Malden Center · Malden Middle School/Vault 75 · Mass Fusion containment shed · Med-Tek Research · Medford Memorial Hospital · National Guard training yard · Old Gullet sinkhole · Outpost Zimonja · Parsons Creamery · Parsons State Insane Asylum · Poseiden Energy Turbine #18-F · Radio tower 3SM-U81 · Relay tower 0MC-810 · Recon bunker Theta · Revere satellite array · Rotten landfill · Saugus Ironworks · Skylanes Flight 1981 · Slocum's Joe Corporate HQ · The Slog · Taffington boathouse · Tucker Memorial Bridge · West Everett Estates · Wildwood Cemetery Western Commonwealth ArcJet Systems · Beantown Brewery · Boston mayoral shelter · Chestnut Hillock Reservoir · Federal ration stockpile · Fiddler's Green Trailer Estates · Forest Grove marsh · Fort Hagen · Fort Hagen filling station · Fort Hagen satellite array · Graygarden · Greater Mass blood clinic · Jalbert Brothers Disposal · Mass Gravel & Sand · Mass Pike Interchange · Oberland station · Relay tower 0BB-915 · Relay tower 1DL-109 · Rocky Narrows Park · Vault 81 · Wattz Consumer Electronics · Weston water treatment plant Coastal Commonwealth Coastal cottage · Crater house · Dunwich Borers · Gibson Point Pier · Hub City Auto Wreckers · Hugo's Hole · Kingsport Lighthouse · Longneck Lukowski's Cannery · Lynn Pier parking · Mahkra Fishpacking · Nahant (Croup Manor · Libertalia · Nahant Chapel · Nahant Oceanological Society · Nahant Sherrif's Department · Nahant Wharf) · Nordhagen beach · Reeb Marina · Revere Beach station · Salem (Museum of Witchcraft · Rook family house · Sandy Coves Convalescent Home) Natick and the Glowing Sea Atlantic Offices · Capsized factory · Cave · Crater of Atom · Cutler Bend · Decayed reactor site · Decrepit factory · Edge of the Glowing Sea · Electrical Hobbyist's Club · Federal supply cache 84NE · Federal Surveillance Center K-21B · Forgotten church · Hopesmarch Pentecostal church · Lake Cochituate · Mass Fusion disposal site · Natick (Natick Banks · Natick Police Department · Poseidon reservoir · Roadside Pines Motel) · O'Neill Family Manufacturing · Relay tower 0DB-521 · Robotics Pioneer Park · Rocky cave · Scrap palace · Sentinel site · Skylanes Flight 1665 · Somerville Place · Vault 95 · Vertibird wreckage · Waypoint Echo · WRVR broadcast station Quincy and Southern Commonwealth Atom Cats garage · Boston Police rationing site · Coast Guard Pier · Egret Tours Marina · Fairline Hill Estates · Fallon's department store · Gunners plaza · Hyde Park · Jamaica Plain · Mass Pike Tunnel east · Mass Pike Tunnel west · Milton General Hospital · Murkwater construction site · Neponset Park · NH&M Freight Depot · Poseidon Energy · Quincy Quarries · Quincy ruins (Quincy police station · Peabody house) · Relay tower 0SC-527 · Shaw High School · Spectacle Island · Suffolk County Charter School · Warwick homestead · West Roxbury station · Westing Estate · Wilson Atomatoys factory · Wreck of the FMS Northern Star The Commonwealth unmarked locations Slocum's Joe · Garage alcove · Malden police station · 35 Court · Abandoned house (Charlestown) · Anna's Cafe · Back Alley Bowling · Backyard bunker · Beacon Hill apartments · Boxing gym · Bridgeway Trust · Broken monorail · Brookline building · Bus and apartment wreckage · Cambridge Academic Center · Cambridge church · Cambridge construction site · Cambridge hardware store · Cambridge raider base · Camp Kendall · Car tree camp · Charles River · Charlestown laundry · Columbus Park · Coastal hideout · Commonwealth Bank · Commonwealth Weaponry · Compound · Concord Church · Concord civic access · Concord Speakeasy · Congress Street garage · Copley station · Cottage · Daisy's Discounts · Dorchester Height monument · Drug den · East C.I.T. raider camp · Evans Way Cul-de-Sac · Factory · Faded Glory laundromat · Fallout 4 military checkpoints · Fens Cafe · Fens Way station · Fentons Food Stuffs · Flagon Tunnel · Footbridge (Esplanade) · Founder's Triangle · Freedom Trail · Freeway pileup · General Atomics outlet · Graygarden homestead · Guns Guns Guns · Handy Eats · Hardware store · Hawthorne Estate · Hoarder's apartment · Hollowed-out rock · Holy Mission Congregation · Hub 360 · Jamaica Plain Town Hall basement · Jimbo's Tower · Joe's Spuckies · Joe's Spuckies sandwich shop · Kellogg's house · Kendall Parking · L Street bathhouse · Lexington Bank · Lexington Pharmacy · Lil' Gentry playground · Long Wharf · Madden's gym · Raider platforms (Cambridge) · Malden drainage · Marlborough house · Marowski's chem lab · Mass Chemical · Mass Pike Tunnel · Mean Pastries · Milton parking garage · Mole rat den · Nahant Bar and Restaurant · Natick power station · North End graveyard · Northwest house · Atlantic · Parking garage · Paul Revere House · Paul Revere Monument · Pearwood Residences · Pinelli's Bakery · Pinnacle Highrise · Pizza parlor · Plumber's Secret · Prost bar · Quincy Apartments · Quincy church · Quincy Diner · Quincy Liquors · Quincy Pharmacy · Raider outpost · Raider back-alley camp · Red Rocket (Glowing Sea) · Root cellar · Rusty tractor · Science Center gift shop · Shanty store · Shenley's Oyster Bar · Sleepwalker's place · Sniper's hideout · South Boston Church · South Fens Tower · Sullivan's · The Dig · The House of Tomorrow · The Switchboard · Ticker Tape Lounge · Train car · Trinity Church · UFO crash site · Union Man's Circle · Union's Hope Cathedral · University Credit Union · Valenti station · Vitale pumphouse · Walden Drugs (Cambridge) · Walden Drugs (Concord) · Warren Theater · Water filtration caps stash · Water Street apartments · Baxter building · Western Bell vessel · Workhouse · Wright's Inn Far Harbor unmarked locations Acadia National Park · Basement armory · Emmet's Causeway · Kawaketak Station · Pump control · Red Death Island Nuka-World unmarked locations Bear cave · Cappy's Cafe · Employee tunnels · Nuka-Cade · Nuka-World access tunnels Add-on locations Automatron Fort Hagen hangar · RobCo Sales & Service Center (The Mechanist's lair) Far Harbor The Island · Acadia · Aldersea Day Spa · Atom's Spring · Beaver Creek Lanes · Briney's Bait and Tackle · Brooke's Head Lighthouse · Children of Atom shrine · Cliff's Edge Hotel · Cranberry Island Bog · Cranberry Island Docks · Cranberry Island supply shed · Dalton farm · DiMA's cache · Eagle's Cove Tannery · Eden Meadows Cinemas · Echo Lake Lumber · Far Harbor · Fringe Cove docks · Glowing Grove · Haddock Cove · Harbor Grand Hotel · Horizon Flight 1207 · Huntress Island · Kitteredge Pass · Longfellow's cabin · MS Azalea · Nakano residence · National Park campground · National Park visitor's center · National Park HQ · Northwood Ridge Quarry · Oceanarium · Old Pond House · Pine Crest Cavern · Radiant crest shrine · Rayburn Point · Red Death Island · Rock Point Camp · Ruined church · Southwest Harbor · The Nucleus · The Vessel · Vault 118 · Vim! Pop factory · Waves Crest Orphanage · Wind farm maintenance · Zephyr Ridge Camp Vault-Tec Workshop Vault 88 · University Point Pharmacy Nuka-World Nuka-World · Galactic Zone · (Nuka-Galaxy · Vault-Tec: Among the Stars · RobCo Battlezone · Starlight Interstellar Theater · Starport Nuka) · Dry Rock Gulch · (Dry Rock Gulch employee area · Dry Rock Gulch Theater · Doc Phosphate's Saloon · Mad Mulligan's Minecart Coaster · Main Street · Ol' Sugartop) · Safari Adventure · (Angry Anaconda · Cappy's treehouse · Jungle Journey Theater · Safari Adventure primate house · Safari Adventure reptile house · Welcome Center) · Kiddie Kingdom · (Carousel · Blast Off! · Candy Town Playground · Employee tunnels · Ferris Wheel · Fun House · King Cola's Castle · King Cola's Court · Nuka-Racers · Teacups) · Nuka-Town USA · (Bradberton Amphitheater · Cola-cars arena · Cappy's Cafe · Fizztop Grille · Fizztop Mountain · Nuka-Cade · Nuka-Town backstage · Nuka-Town market · Nuka-World access tunnels · The Parlor) · Nuka-Cola bottling plant · (Secure beverageer lab · World of Refreshment) · Bradberton · Bradberton overpass · Dunmore homestead · Evan's home · Grandchester Mystery Mansion · Hubologist's camp · Morton residence · Northpoint reservoir · Nuka-World junkyard · Nuka-World power plant · Wixon's Shovel Museum Parentheses () denote sub-locations, bold denotes main locations, italics denotes unmarked locations.