| 49KS | N & N Airport | Manhattan KS |
| 06WA | N A Degerstrom Yard Heliport | Spokane WA |
| 0CT3 | N B G H Heliport | New Britain CT |
| 19MT | N Bar Ranch Airport | Grassrange MT |
| 28FA | N Broward Medical Center Heliport | Pompano Beach FL |
| 51TX | N D Ranch Airport | Van TX |
| 68NJ | N U I Heliport | Somerville NJ |
| 2LA1 | N.freshwater Bayou Heliport | Intracoastal City LA |
| NK40 | N.y. Life Westchester Heliport | North Tarrytown NY |
| 42L | Naa Long Beach Port Helistop Heliport | Long Beach CA |
| OG41 | Nace Family Airstrip Airport | Glendale OR |
| 37MN | Nagel And Schultz Airport | Belle Plaine MN |
| 64FA | Naked Lady Ranch Airport | Stuart FL |
| 76Z | Nakeen Airport | Nakeen AK |
| 5NK | Naknek Airport | Naknek AK |
| 84NM | Nalda Ranch Airport | Pie Town NM |
| 57MN | Namakan Seaplane Base | Ray MN |
| MAN | Nampa Muni Airport | Nampa ID |
| ID58 | Nampa Valley Heliport | Boise ID |
| 8LL0 | Nance Airport | Old Ripley IL |
| 78Z | Nancy Lake Seaplane Base | Nancy Lake AK |
| ACK | Nantucket Memorial Airport | Nantucket MA |
| KEB | Nanwalek Airport | Nanwalek AK |
| APC | Napa County Airport | Napa CA |
| CL39 | Napa County Fire Dept. Heliport | St Helena CA |
| 4AK8 | Napaimute Pioneer Airfield Airport | Napaimute AK |
| WNA | Napakiak Airport | Napakiak AK |
| PKA | Napaskiak Airport | Napaskiak AK |
| LL10 | Naper Aero Club Airport | Naperville IL |
| OG40 | Napier Ranch Airport | Roseburg OR |
| 04XS | Napiers Heliport | Mansfield TX |
| FD97 | Naples Community Hospital Heliport | Naples FL |
| APF | Naples Muni Airport | Naples FL |
| 1PN1 | Napodano Airport | Transfer PA |
| 3NP | Napoleon Airport | Napoleon MI |
| 5B5 | Napoleon Muni Airport | Napoleon ND |
| C03 | Nappanee Muni Airport | Nappanee IN |
| 77PA | Nardo Airport | Allison Park PA |
| RCT | Nartron Field Airport | Reed City MI |
| 5C3 | Nary National-shefland Field Airport | Nary MN |
| TTS | Nasa Shuttle Landing Facility Airport | Titusville FL |
| 70II | Nasby Airport | Shelbyville IN |
| IA66 | Nash Field Indianola Airport | Indianola IA |
| 0NC5 | Nash General Hospital Heliport | Rocky Mount NC |
| 1MA1 | Nashoba Valley Medical Center Heliport | Ayer MA |
| 10VA | Nashs Airport | Appomattox VA |
| 15NH | Nashua Technology Park Heliport | Nashua NH |
| BNA | Nashville Intl Airport | Nashville TN |
| CT69 | Nasin Heliport | Willimantic CT |
| 6MA1 | Nason Hill Heliport | Sherborn MA |
| 3PA7 | Nason Hospital Heliport | Roaring Spring PA |
| 83FL | Nassau Airport | Yulee FL |
| 0TX0 | Nassau Bay Airport | Granbury TX |
| 8NY9 | Nassau County Police Heliport | Bethpage NY |
| 7MD2 | Nat'l Emergency Training Cntr Heliport | Emmitsburg MD |
| 04KY | Natchez Trace Farm Airport | Hiseville KY |
| 7LA8 | Natchitoches Parish Hospital Heliport | Natchitoches LA |
| IER | Natchitoches Rgnl Airport | Natchitoches LA |
| MA58 | Natick Army Laboratories Heliport | Natick MA |
| OI96 | National Heliport | Columbus OH |
| 9GE9 | National Ems Headquarters Heliport | Conyers GA |
| NJ91 | National Starch And Chemical Co Heliport | Finderne NJ |
| OI95 | Nationwide Children's Hospital Heliport | Columbus OH |
| 5CL4 | Natividad Medical Center Heliport | Salinas CA |
| 03MN | Nauerth Land Ranch Airport | Lakefield MN |
| LS35 | Nauga Field Airport | St Francisville LA |
| AK62 | Naukati Bay Seaplane Base | Tuxekan Island AK |
| 1V0 | Navajo Lake Airport | Navajo Dam NM |
| 04UT | Navajo Mountain Airport | Navajo Mountain Trdng Post UT |
| 55CA | Naval Hospital Heliport | Oakland CA |
| 0WA9 | Naval Station Everett Heliport | Everett WA |
| 9WA9 | Naval Submarine Base Bangor Heliport | Silverdale WA |
| NBV | Naval Surface Warfare Center Panama City Heliport | Panama City FL |
| 60R | Navasota Muni Airport | Navasota TX |
| TA09 | Navsta Ingleside Heliport | Ingleside TX |
| NGT | Navy Outlying Field (nolf) Goliad Airport | Berclair TX |
| LA56 | Naylor Airport | Robson LA |
| 19AR | Naylor Field Airport | Naylor AR |
| 1FL4 | Nbc 6 (wtvj) Heliport | Miramar FL |
| 8CL3 | Nbc-tv Heliport | Burbank CA |
| 5NC7 | Nc Baptist Hospital Heliport | Winston-salem NC |
| NC61 | Nc61 Airport | Moyock NC |
| 2NK5 | Nch Heliport | Alexandria Bay NY |
| 98CO | Ncmc Heliport | Greeley CO |
| 35TE | Ne Police Station Nr 2 Heliport | Houston TX |
| AR60 | Nea Baptist Hospital Heliport | Jonesboro AR |
| 79FL | Neal Field Airport | Chiefland FL |
| OH96 | Neals Airport | Mount Orab OH |
| AFK | Nebraska City Muni Airport | Nebraska City NE |
| 58NE | Nebraska Methodist Hospital Heliport | Omaha NE |
| TA13 | Nebtex Land Co. Airport | Texline TX |
| DAF | Necedah Airport | Necedah WI |
| TN47 | Needham's Airport | Arlington TN |
| EED | Needles Airport | Needles CA |
| WV21 | Needwood Farm Airport | Harpers Ferry WV |
| 9GE7 | Neely Farms Airport | Covington GA |
| 0NM7 | Negrito Airstrip Airport | Reserve NM |
| 3S7 | Nehalem Bay State Airport | Manzanita OR |
| PA55 | Neiderer Airport | Carlisle PA |
| AXV | Neil Armstrong Airport | Wapakoneta OH |
| O14 | Neil's Sky Ranch Airport | Ninnekah OK |
| VIQ | Neillsville Muni Airport | Neillsville WI |
| 19LL | Neiner Airport | Manteno IL |
| LSV | Nellis Afb Airport | Las Vegas NV |
| NY20 | Nellis Field Airport | Fort Plain NY |
| 8IS1 | Nelson Airport | Carlinville IL |
| MI72 | Nelson Airport | Buchanan MI |
| MT58 | Nelson Airport | Haxby / Fort Peck MT |
| ND01 | Nelson Airport | Amenia ND |
| 59NE | Nelson Airport | Boelus NE |
| OUL | Nelson Lagoon Airport | Nelson Lagoon AK |
| 60IS | Nelson Private Airport | Browns IL |
| MT21 | Nelson Ranch Airport | Lincoln MT |
| 19OR | Nelson Ranch Airport | Maupin OR |
| 39PN | Nelson's Run Airport | Mercer PA |
| WN59 | Nelsons Nitch Airport | Onalaska WA |
| 9II2 | Nelund Field Airport | Mishawaka IN |
| PA88 | Nemacolin Airport | Farmington PA |
| 77NE | Nemaha County Hospital Heliport | Auburn NE |
| MU47 | Nemo Coal Co Heliport | Cairo MO |
| ENN | Nenana Muni Airport | Nenana AK |
| NY18 | Neno Intl Airport | Ithaca NY |
| 2K7 | Neodesha Muni Airport | Neodesha KS |
| EOS | Neosho Hugh Robinson Airport | Neosho MO |
| 89KS | Neosho Memorial Rgnl Hospital Heliport | Chanute KS |
| U14 | Nephi Muni Airport | Nephi UT |
| O02 | Nervino Airport | Beckwourth CA |
| 1MS1 | Neshoba General Hospital Heliport | Philadelphia MS |
| 48K | Ness City Muni Airport | Ness City KS |
| 3MI9 | Ness Landing Seaplane Base | Rapid River MI |
| 25PN | Nessmuk Heliport | Wellsboro PA |
| 1H9 | Nest Of Eagles Airport | Spooner WI |
| 9OI6 | Nesta Airport | Loudenville OH |
| 7WI9 | Nett Construction Airport | Fond Du Lac WI |
| NK83 | Nettie's Place Airport | Quaker Street NY |
| 8KS1 | Neu Field Airport | Basehor KS |
| 71OK | Neuwirth Airstrip Airport | Lawton OK |
| GOO | Nevada County Air Park Airport | Grass Valley CA |
| NVD | Nevada Muni Airport | Nevada MO |
| MO20 | Nevada Rgnl Medical Center Heliport | Nevada MO |
| 4WI3 | Neveln Field Airport | Crivitz WI |
| NY76 | Neverland Airport | Cattaraugus NY |
| 1OK0 | Neversweat Airport | Bristow OK |
| 89OK | Neversweat Too Airport | Sallisaw OK |
| M72 | New Albany-union Co Airport | New Albany MS |
| EWB | New Bedford Rgnl Airport | New Bedford MA |
| BAZ | New Braunfels Rgnl Airport | New Braunfels TX |
| 1NJ2 | New Brunswick Gas Distn Heliport | New Brunswick NJ |
| ILG | New Castle Airport | Wilmington DE |
| VA85 | New Castle Intl Airport | New Castle VA |
| UCP | New Castle Muni Airport | New Castle PA |
| UWL | New Castle-henry Co Muni Airport | New Castle IN |
| IXD | New Century Aircenter Airport | Olathe KS |
| C80 | New Coalinga Muni Airport | Coalinga CA |
| L88 | New Cuyama Airport | New Cuyama CA |
| MA69 | New England Memorial Hospital Heliport | Stoneham MA |
| 7NJ1 | New Freedom Switching Station Heliport | Winslow Township NJ |
| N57 | New Garden Airport | Toughkenamon PA |
| 1TX4 | New Gulf Airport | New Gulf TX |
| 1Y5 | New Hampton Muni Airport | New Hampton IA |
| 25NR | New Hanover County Sheriff's Office Heliport | Castle Hayne NC |
| X52 | New Hibiscus Airpark Airport | Vero Beach FL |
| 8D1 | New Holstein Muni Airport | New Holstein WI |
| AL29 | New Horizon Airport | Blountsville AL |
| 78KY | New Horizons Health Systems Inc Heliport | Owenton KY |
| 64NJ | New Jersey Bell Cdc 11 Heliport | Freehold Township NJ |
| 17NJ | New Jersey Steel Helistop Heliport | Sayreville NJ |
| JY21 | New Jersey Turnpike Heliport | Jamesburg NJ |
| 1Q4 | New Jerusalem Airport | Tracy CA |
| W96 | New Kent County Airport | Quinton VA |
| 9IN2 | New Liberty Field Airport | New Liberty IN |
| W90 | New London Airport | Forest VA |
| 8W2 | New Market Airport | New Market VA |
| WV37 | New Martinsville Seaplane Base | New Martinsville WV |
| 1U4 | New Meadows Airport | New Meadows ID |
| NM61 | New Mexico Soaring Ranch Airport | Albuquerque NM |
| 7N0 | New Orleans Downtown Heliport | New Orleans LA |
| NBG | New Orleans Nas Jrb/alvin Callender Field/ Airport | New Orleans LA |
| 92VA | New Quarter Farm Airport | Gloucester VA |
| RNH | New Richmond Rgnl Airport | New Richmond WI |
| WV32 | New River Gorge Airport | Lansing WV |
| NCA | New River Mcas /h/ /mccutcheon Fld/ Airport | Jacksonville NC |
| PSK | New River Valley Airport | Dublin VA |
| 74NY | New Salem Aerodrome Airport | Farmington NY |
| EVB | New Smyrna Beach Muni Airport | New Smyrna Beach FL |
| KNW | New Stuyahok Airport | New Stuyahok AK |
| 3A2 | New Tazewell Muni Airport | Tazewell TN |
| 05D | New Town Muni Airport | New Town ND |
| MY84 | New Ulm Medical Center Heliport | New Ulm MN |
| ULM | New Ulm Muni Airport | New Ulm MN |
| 4AZ5 | New Waddell Dam Heliport | Phoenix AZ |
| 6N7 | New York Skyports Inc Seaplane Base | New York NY |
| 6NK6 | New York State D.e.c. Indian Lake Heliport | Indian Lake NY |
| 0NY6 | New York State Police Heliport | Auburn NY |
| EWR | Newark Liberty Intl Airport | Newark NJ |
| VTA | Newark-heath Airport | Newark OH |
| DE04 | Newberg Airport | Smyrna DE |
| EOE | Newberry County Airport | Newberry SC |
| SC73 | Newberry County Memorial Hospital Heliport | Newberry SC |
| NJ13 | Newbold Island Heliport | Bordentown NJ |
| 28OH | Newbury Airport | Lyons OH |
| 36II | Newby Landing Airport | Brownsburg IN |
| 4MO2 | Newcomb Hereford Ranch Airport | Lancaster MO |
| 2N2 | Newfound Valley Airport | Bristol NH |
| WA34 | Newhalem Office Heliport | Newhalem WA |
| 4OK5 | Newman Farm Airport | Velma OK |
| 4N0 | Newman's Airport | Kalamazoo MI |
| CCO | Newnan Coweta County Airport | Atlanta GA |
| 3CA1 | Newport Beach Police Heliport | Newport Beach CA |
| WN32 | Newport Community Hosp Heliport | Newport WA |
| 91NJ | Newport Helistop Heliport | Jersey City NJ |
| M19 | Newport Muni Airport | Newport AR |
| ONP | Newport Muni Airport | Newport OR |
| 86VA | Newport News General Hospital Heliport | Newport News VA |
| PHF | Newport News/williamsburg Intl Airport | Newport News VA |
| ME68 | Newport Sky Park Airport | Newport ME |
| UUU | Newport State Airport | Newport RI |
| EFK | Newport State Airport | Newport VT |
| 9MI2 | Newport Woods Airport | Newport MI |
| 14TN | News Channel 3 Heliport | Memphis TN |
| EWU | Newtok Airport | Newtok AK |
| WWT | Newtok Seaplane Base | Newtok AK |
| 12CL | Newton Field Airport | Stratford CA |
| 59B | Newton Field Airport | Jackman ME |
| 71GA | Newton Medical Center Heliport | Covington GA |
| 7NJ3 | Newton Memorial Hospital Heliport | Newton NJ |
| TNU | Newton Muni Airport | Newton IA |
| 61R | Newton Muni Airport | Newton TX |
| EWK | Newton-city-county Airport | Newton KS |
| 0S5 | Nez Perce Muni Airport | Nez Perce ID |
| IAG | Niagara Falls Intl Airport | Niagara Falls NY |
| NK77 | Niagara Falls Memorial Parking Ramp Heliport | Niagara Falls NY |
| 19MS | Nichol Airpark Airport | Holly Springs MS |
| 7KY1 | Nicholas County Hospital Heliport | Carlisle KY |
| IA97 | Nichols Airport | La Porte City IA |
| 0PN5 | Nichols Airport | Spartansburg PA |
| VA53 | Nichols Heliport | White Stone VA |
| 8CL0 | Nichols Farms Airport | Palmdale CA |
| ID07 | Nichols Ranch Airport | Post Falls ID |
| 75WV | Nicholson Airport | West Union WV |
| 04MS | Nick's Flying Service Inc Airport | Rolling Fork MS |
| 4NA6 | Nicks Landing Airport | Grenora ND |
| 2SD4 | Nicolaisen Airport | Mount Vernon SD |
| 88WI | Nicolet Airport | Green Bay WI |
| 2OR0 | Nielsen Airport | Oregon City OR |
| 99PA | Nielsen Airport | Tioga PA |
| MY97 | Nielsen's Airport | Farmington MN |
| 1MU9 | Nielsens Med Evac Heliport | Saint Charles MO |
| 84MN | Nielsville Airport | Nielsville MN |
| 92FD | Nierenberg Estate Heliport | Melbourne FL |
| 6OH7 | Nietz Airport | Bowling Green OH |
| MN32 | Nietz Airstrip Airport | Oronoco MN |
| IGT | Nightmute Airport | Nightmute AK |
| AA38 | Nikaitchuq Operations Center Heliport | Kuparuk AK |
| 1MI1 | Nikkila Farms Airport | Mass MI |
| TT03 | Nikko Heliport | San Roque CQ |
| 4AK0 | Niklason Lake Seaplane Base | Wasilla AK |
| 3AK2 | Niklason Lake Estates Airport | Palmer AK |
| IS26 | Niklaus Rla Airport | Farmer City IL |
| FSP | Nikolai Airport | Nikolai AK |
| 9AK3 | Nikolai Creek Airport | Tyonek AK |
| IKO | Nikolski As Airport | Nikolski AK |
| 3MO5 | Nimsick Airport | Carthage MO |
| MT52 | Nine Mile Airport | Huson MT |
| 1MT0 | Nine Quarter Circle Ranch Airport | Gallatin Gateway MT |
| NIN | Ninilchik Airport | Ninilchik AK |
| II57 | Nipsco Southlake Complex Heliport | Merrillville IN |
| FA59 | Nitv Heliport | Wellington FL |
| TX07 | Nix River Ranch Strip Airport | Comstock TX |
| IS60 | Nixon Airport | Medora IL |
| AK40 | Nixon Fork Mine Airport | Mcgrath AK |
| NJ53 | Nj Hwy Auth-admin Bldg Helispot Heliport | Fords NJ |
| NJ97 | Nj Turnpike Authority Heliport | Mount Laurel NJ |
| 06MO | Noahs Ark Airport | Waldron MO |
| WTK | Noatak Airport | Noatak AK |
| I10 | Noble County Airport | Caldwell OH |
| 56NE | Noble Field Airport | Ravenna NE |
| I80 | Noblesville Airport | Noblesville IN |
| 8TN5 | Nobuzzn Airport | Springfield TN |
| NC10 | Nocarva Airport | Macon NC |
| 35XS | Nocona General Hospital Heliport | Nocona TX |
| OLS | Nogales Intl Airport | Nogales AZ |
| IS27 | Nokomis Community Memorial Park Heliport | Nokomis IL |
| 3IS3 | Noland Rla Airport | Blue Mound IL |
| NE82 | Nolte Farms Airport | Murray NE |
| OME | Nome Airport | Nome AK |
| 94Z | Nome City Field Airport | Nome AK |
| 5NN | Nondalton Airport | Nondalton AK |
| NM94 | Nor Lea County General Hospital Heliport | Lovington NM |
| 83NY | Norcross Helipad Heliport | Rochester NY |
| MY07 | Nord Field Airport | Wolverton MN |
| 1CT0 | Norden Systems Heliport | Norwalk CT |
| NH53 | Norden Systems Heliport | Merrimack NH |
| IL90 | Nordic Heliport | Gurnee IL |
| 1LL4 | Norfleet Airport | Monticello IL |
| ORF | Norfolk Intl Airport | Norfolk VA |
| NGU | Norfolk Ns (chambers Fld) Airport | Norfolk VA |
| OFK | Norfolk Rgnl/karl Stefan Memorial Fld Airport | Norfolk NE |
| 42II | Norm's Airpark Airport | La Porte IN |
| 31MA | Norm's Field Airport | Belchertown MA |
| 6TE1 | Norman & White Airport | Edinburg TX |
| D00 | Norman County Ada/twin Valley Airport | Ada/twin Valley MN |
| 9NY5 | Norman Kurrass Contractor Heliport | Patchogue NY |
| 7OK6 | Norman Rgnl Hospital Heliport | Norman OK |
| 29IS | Norman Rittenhouse Heliport | Fairbury IL |
| SJC | Norman Y. Mineta San Jose Intl Airport | San Jose CA |
| WI00 | Norrie Brook Airport | Eland WI |
| 0KS4 | Norris Airport | Lawrence KS |
| 8II2 | Norris Field Airport | Liberty IN |
| TS62 | Norris Field Airport | Jayton TX |
| 68TE | Norris Raun Ranch Airport | El Campo TX |
| 01PS | Nort's Resort Airport | Meshoppen PA |
| 32MA | North Adams Rgnl Hospital Heliport | North Adams MA |
| XNO | North Af Aux Airport | North SC |
| MY93 | North Air Seaplane Base | Perham MN |
| 56FD | North American Farms Airport | Malone FL |
| AR80 | North Arkansas Medical Center Heliport | Harrison AR |
| CD46 | North Arrow Heliport | Fort Collins CO |
| 3X5 | North Bass Island Airport | North Bass Island OH |
| MA23 | North Bay Heliport | Osterville MA |
| TE00 | North Bay General Hospital Inc Heliport | Aransas Pass TX |
| 6FA6 | North Bay Hospital Heliport | New Port Richey FL |
| U68 | North Big Horn County Airport | Cowley/lovell/byron WY |
| 0G0 | North Buffalo Suburban Airport | Lockport NY |
| 0LA4 | North Caddo Medical Center Heliport | Vivian LA |
| CT24 | North Canaan Aviation Facilities Inc Airport | North Canaan CT |
| 6NC6 | North Carolina Helicopters Heliport | Gastonia NC |
| MI73 | North Cedar Airport | Cedar Springs MI |
| XA71 | North Cedar Airport | Apple Springs TX |
| 6MN4 | North Center Lake Seaplane Base | Lindstrom MN |
| 64TX | North Central Baptist Hospital Heliport | San Antonio TX |
| MO8 | North Central Missouri Rgnl Airport | Brookfield MO |
| SFZ | North Central State Airport | Pawtucket RI |
| CKB | North Central West Virginia Airport | Clarksburg WV |
| 3MA4 | North Chatham Heliport | Chatham MA |
| 9M0 | North Country Seaplane Base | Duluth MN |
| SS1 | North Country Seaplane Base | Solon Springs WI |
| VT70 | North Country Hospital Heliport | Newport VT |
| MT91 | North Country Pad Heliport | Bigfork MT |
| 8AK8 | North Cubs Strip Airport | Wasilla AK |
| 2XA3 | North Cypress Medical Center Heliport | Cypress TX |
| 18AK | North Douglas Heliport | Juneau AK |
| 85FA | North Exuma Airport | Deland FL |
| FA56 | North Florida Rgnl Medical Center Heliport | Gainesville FL |
| 8NY3 | North Fork Airport | Afton NY |
| 97WI | North Fork Airport | Thorp WI |
| 7V2 | North Fork Valley Airport | Paonia CO |
| 36VT | North Hero Passage Seaplane Base | North Hero VT |
| 24TS | North Hills Hospital Heliport | North Richland Hills TX |
| 9X1 | North Houston Business Airport | Houston TX |
| NZY | North Island Nas /halsey Field/ Airport | San Diego CA |
| 10AL | North Jackson Nursing Home Heliport | Bridgeport AL |
| 83MO | North Kansas City Hospital Heliport | North Kansas City MO |
| IN31 | North Lakeland Airport | Pendleton IN |
| VGT | North Las Vegas Airport | Las Vegas NV |
| ORK | North Little Rock Muni Airport | North Little Rock AR |
| MY77 | North Memorial Heliport | Robbinsdale MN |
| 6PS6 | North Middlesex Heliport | Carlisle PA |
| CL45 | North Net Fire Training Heliport | Anaheim CA |
| LS02 | North Oaks Medical Center Heliport | Hammond LA |
| 11FD | North Okaloosa Medical Center Heliport | Crestview FL |
| 3NO | North Omaha Airport | Omaha NE |
| F45 | North Palm Beach County General Aviation Airport | West Palm Beach FL |
| 19MO | North Patrol Div Station Heliport | Kansas City MO |
| PS34 | North Penn Usarc Heliport | Worcester PA |
| HWO | North Perry Airport | Hollywood FL |
| 3M8 | North Pickens Airport | Reform AL |
| 1OR4 | North Plains Gliderport | North Plains OR |
| LBF | North Platte Rgnl Airport Lee Bird Field Airport | North Platte NE |
| 84FD | North Port Ems Heliport | North Port FL |
| 49FA | North Port Fire Rescue Station 81 Heliport | North Port FL |
| 00NC | North Raleigh Airport | Louisburg NC |
| 7NY3 | North Shore University Hospital Heliport | Manhasset NY |
| 6NK3 | North Shore University Hospital Nr 2 Heliport | Manhasset NY |
| MY66 | North Star Ranch Airport | Onamia MN |
| CD22 | North Suburban Medical Center Heliport | Thornton CO |
| 8TX9 | North Texas Medical Center Heliport | Gainesville TX |
| GYI | North Texas Rgnl/perrin Field Airport | Sherman/denison TX |
| 9CA6 | North Valley Airport | Bishop CA |
| OVO | North Vernon Airport | North Vernon IN |
| 96Z | North Whale Seaplane Base | North Whale Pass AK |
| XS28 | North Willis Airport | Nome TX |
| 23VT | North Windham Airport | Londonderry VT |
| 7B2 | Northampton Airport | Northampton MA |
| 6VA7 | Northampton Accomack Memorial Hospital Heliport | Nassawadox VA |
| 5MN6 | Northbound Seaplane Base | Grand Papids MN |
| 1NC9 | Northbrook Intl Ultraport Ultralight | Cherryville NC |
| TN00 | Northcrest Medical Center Heliport | Springfield TN |
| GAD | Northeast Alabama Rgnl Airport | Gadsden AL |
| TS28 | Northeast Community Hospital Heliport | Bedford TX |
| SGJ | Northeast Florida Rgnl Airport | St Augustine FL |
| CCY | Northeast Iowa Rgnl Airport | Charles City IA |
| NC60 | Northeast Medical Center Heliport | Concord NC |
| 6XS1 | Northeast Medical Center Hospital Heliport | Humble TX |
| HZY | Northeast Ohio Rgnl Airport | Ashtabula OH |
| PNE | Northeast Philadelphia Airport | Philadelphia PA |
| MU92 | Northeast Rgnl Medical Center Heliport | Kirksville MO |
| EDE | Northeastern Rgnl Airport | Edenton NC |
| FVE | Northern Aroostook Rgnl Airport | Frenchville ME |
| AZ16 | Northern Cochise Community Hospital Heliport | Willcox AZ |
| 1MN3 | Northern Itasca Health Care Center Heliport | Bigfork MN |
| VT46 | Northern Lights Airport | Alburg VT |
| 2VT2 | Northern Lights Seaplane Base | Alburg VT |
| 00WI | Northern Lite Airport | Waupaca WI |
| 83B | Northern Maine Rgnl Seaplane Base | Presque Isle ME |
| PQI | Northern Maine Rgnl Arpt At Presque Is Airport | Presque Isle ME |
| NV69 | Northern Nevada Medical Center Heliport | Sparks NV |
| CD79 | Northfield Heliport | Woodland Park CO |
| N09 | Northfield Heliport | Thomaston CT |
| 48MN | Northfield Hospital Heliport | Northfield MN |
| 43Y | Northome Muni Airport | Northome MN |
| 38WI | Northport Airport | Royalton WI |
| CA86 | Northridge Hospital Heliport | Los Angeles CA |
| CN22 | Northrop Anaheim Heliport | Anaheim CA |
| 26CL | Northrop Grumman Woodland Hills Heliport | Los Angeles CA |
| 66CN | Northrop Palos Verdes Heliport | Palos Verdes CA |
| 0IS2 | Northshore Glenbrook Hospital Heliport | Glenview IL |
| 67OI | Northside & Tod Children's Hospital Heliport | Youngstown OH |
| GA55 | Northside Hospital Heliport | Atlanta GA |
| 8GE8 | Northside Hospital-cherokee Heliport | Canton GA |
| 90AK | Northstar Heliport | Prudhoe Bay/deadhorse AK |
| N79 | Northumberland County Airport | Shamokin PA |
| ORT | Northway Airport | Northway AK |
| NY97 | Northway Airport | Morrisonville NY |
| MSL | Northwest Alabama Rgnl Airport | Muscle Shoals AL |
| 58MN | Northwest Angle Airport | Warroad MN |
| XNA | Northwest Arkansas Rgnl Airport | Fayetteville/springdale/ AR |
| 7IL4 | Northwest Community Hospital Heliport | Arlington Heights IL |
| IN79 | Northwest Family Hosp Heliport | Gary IN |
| ECP | Northwest Florida Beaches Intl Airport | Panama City FL |
| 80FL | Northwest Florida Community Hospital Heliport | Chipley FL |
| WN70 | Northwest Helicopters Heliport | Tumwater WA |
| EVU | Northwest Missouri Rgnl Airport | Maryville MO |
| 52F | Northwest Rgnl Airport | Roanoke TX |
| 2NK0 | Northwest Waterbird Seaplane Base | Bolten Landing NY |
| 45IL | Northwestern Lake Forest Hospital Heliport | Lake Forest IL |
| 2MO2 | Northwood Airport | Holt MO |
| NH84 | Northwood Airport | Northwood NH |
| 5D2 | Northwood Muni Airport | Northwood IA |
| 4V4 | Northwood Muni-vince Field Airport | Northwood ND |
| 72MI | Northwoods Airport | Watersmeet MI |
| 8FL2 | Norton Airport | Belleview FL |
| 1KY8 | Norton Audubon Hospital Heliport | Louisville KY |
| 9KY5 | Norton Brownsboro Hospital Heliport | Louisville KY |
| 75VA | Norton Community Hospital Heliport | Norton VA |
| 75MI | Norton Field Airport | Riley MI |
| NRN | Norton Muni Airport | Norton KS |
| 5CT4 | Norwalk Hospital Heliport | Norwalk CT |
| 84L | Norwalk Sheriff Station Heliport | Norwalk CA |
| 5A1 | Norwalk-huron County Airport | Norwalk OH |
| 49K | Norwich Airport | Norwich KS |
| IN75 | Norwood Heliport | Elkhart IN |
| CD55 | Norwood Junction Heliport | Norwood CO |
| OWD | Norwood Memorial Airport | Norwood MA |
| NE88 | Novotny/tonar Farms Airport | Valparaiso NE |
| H66 | Nowata Muni Airport | Nowata OK |
| 13WI | Nowatzski Field Airport | Markesan WI |
| WV52 | Nrao Green Bank Airport | Green Bank WV |
| TE65 | Nrh Fire Department Heliport | North Richland Hills TX |
| 8OK9 | Nu-tech Energy Co Heliport | Oklahoma City OK |
| XS32 | Nucor Ems Heliport | Jewett TX |
| RBO | Nueces County Airport | Robstown TX |
| MA13 | Nugent Heliport | Gloucester MA |
| 39B | Nugent Chamberlain Lake Seaplane Base | Chesuncook ME |
| 33AK | Nugget Bench Airport | Nugget Bench AK |
| TE68 | Nuggs Flying M Airport | Pottsboro TX |
| AQT | Nuiqsut Airport | Nuiqsut AK |
| NUL | Nulato Airport | Nulato AK |
| 73II | Nulltown Wingnuts Ultralight | Connersville IN |
| UT13 | Number 18 Airport | South Jordan UT |
| 8PA0 | Numidia Airport | Numidia PA |
| 16A | Nunapitchuk Airport | Nunapitchuk AK |
| MD79 | Nuodex Inc. Heliport | Worton MD |
| AK21 | Nushagak Airport | Dillingham AK |
| VCB | Nut Tree Airport | Vacaville CA |
| LL14 | Nw Lake Forest Hospital-grayslake Heliport | Grayslake IL |
| 27AR | Nw Medical Of Benton Heliport | Bentonville AR |
| 36TE | Nw Police Station Nr 5 Heliport | Houston TX |
| MS94 | Nwmrmc Heliport | Clarksdale MS |
| NJ28 | Nws Earle Heliport | Colts Neck NJ |
| NCY | Nws Helipad Heliport | Yorktown VA |
| NK32 | Ny Arng Heliport | Albany NY |
| NK33 | Ny State Police - Troop T Heliport | Albany NY |
| ZNC | Nyac Airport | Nyac AK |
| NY22 | Nypd Air Operations (floyd Bennett Field) Heliport | New York NY |
