AtcBase

Base ATC facility information including tower operator, approach/departure control providers, and hours of operation

Source: NASRTable: ATC_BASEVersion: e25086c3e952 (effective 2026-04-16)

Ordered by FACILITY_ID, FACILITY_TYPE. The ordered by list is also the unique record key. Not all fields apply to TRACON, ARTCC, or CERAP facilities.

Example query

# Introspect the AtcBase type in GraphiQL at https://api.nav.sortie.co/graphql
# Example shape (pair with a compatible root query field):
{
  # ...rootQuery... {
    effDate
    siteNo
    siteTypeCode
    facilityType
  # }
}

Run at https://api.nav.sortie.co/graphql — GraphiQL is available in-browser.

Fields (30)

Field	Type	Description	Enum
effDate ← EFF_DATE	String	The 28 Day NASR Subscription Effective Date in format YYYY/MM/DD
siteNo ← SITE_NO	String	Landing Facility Site Number. A unique identifying number. Not applicable to TRACON, ARTCC or CERAP.
siteTypeCode ← SITE_TYPE_CODE	AtcBaseSiteTypeCode	Facility Type Code indicating the type of landing facility	7 values A — Airport B — Balloonport C — Seaplane Base G — Gliderport H — Heliport U — Ultralight V — Vertiport
facilityType ← FACILITY_TYPE	AtcBaseFacilityType	Facility Type describing the ATC facility classification	9 values ATCT — Air Traffic Control Tower ATCT-A/C — Air Traffic Control Tower plus Approach Control ATCT-RAPCON — Air Traffic Control Tower plus Radar Approach Control (Air Force Operates ATCT/FAA Operates Approach Control) ATCT-RATCF — Air Traffic Control Tower plus Radar Approach Control (Navy Operates ATCT/FAA Operates Approach Control) ATCT-TRACON — Air Traffic Control Tower plus Terminal Radar Approach Control NON-ATCT — Non-Air Traffic Control Tower TRACON — Consolidated TRACON ARTCC — Air Route Traffic Control Center CERAP — Center Radar Approach Control Facility
stateCode ← STATE_CODE	AtcBaseStateCode	Associated State Post Office Code, standard two-letter abbreviation for US States and Territories	58 values AK — Alaska AL — Alabama AR — Arkansas AS — American Samoa AZ — Arizona CA — California CO — Colorado CT — Connecticut DC — District of Columbia DE — Delaware FL — Florida GA — Georgia GU — Guam HI — Hawaii IA — Iowa ID — Idaho IL — Illinois IN — Indiana KS — Kansas KY — Kentucky LA — Louisiana MA — Massachusetts MD — Maryland ME — Maine MI — Michigan MN — Minnesota MO — Missouri MP — Northern Mariana Islands MS — Mississippi MT — Montana NC — North Carolina ND — North Dakota NE — Nebraska NH — New Hampshire NJ — New Jersey NM — New Mexico NV — Nevada NY — New York OH — Ohio OK — Oklahoma OR — Oregon PA — Pennsylvania PR — Puerto Rico QM — Kwajalein Atoll (US Army Kwajalein Atoll) QW — Wake Island RI — Rhode Island SC — South Carolina SD — South Dakota TN — Tennessee TX — Texas UT — Utah VA — Virginia VI — Virgin Islands VT — Vermont WA — Washington WI — Wisconsin WV — West Virginia WY — Wyoming
facilityId ← FACILITY_ID	String	Location Identifier. Unique 3-4 character alphanumeric identifier assigned to the Landing Facility or TRACON.
city ← CITY	String	Airport Associated City Name
countryCode ← COUNTRY_CODE	AtcBaseCountryCode	Country Post Office Code for the country where the airport is located	14 values AI — Anguilla AN — Netherlands Antilles BM — Bermuda BS — Bahamas CA — Canada FM — Federated States of Micronesia IO — British Indian Ocean Territory MF — Saint Martin MH — Marshall Islands PW — Palau SH — Saint Helena TC — Turks and Caicos Islands US — United States VG — British Virgin Islands
icaoId ← ICAO_ID	String	ICAO Identifier for the facility
facilityName ← FACILITY_NAME	String	Official Facility Name
regionCode ← REGION_CODE	RegionCode	FAA Region Code indicating the FAA region responsible for the facility	9 values AAL — Alaska ACE — Central AEA — Eastern AGL — Great Lakes ANE — New England ANM — Northwest Mountain ASO — Southern ASW — Southwest AWP — Western-Pacific
twrOperatorCode ← TWR_OPERATOR_CODE	TwrOperatorCode	Operator Code of the Agency that Operates the Tower	16 values A — U.S. Air Force C — U.S. Coast Guard CITY — City COUNTY — County D — Canadian Ministry of Transport F — Federal Aviation Administration FCT — FAA Contract Tower G — Federal Government - Not U.S.A. N — U.S. Navy NFCT — Non-Federal Control Tower O — Other P — Private R — U.S. Army W — U.S. Weather Service X — Royal Canadian Air Force Z — Unknown
twrCall ← TWR_CALL	String	Radio Call used by Pilot to Contact Tower
twrHrs ← TWR_HRS	String	Hours of Tower Operation in Local Time
primaryApchRadioCall ← PRIMARY_APCH_RADIO_CALL	String	Radio Call of Facility That Furnishes Primary Approach Control
apchPProvider ← APCH_P_PROVIDER	String	Facility ID (or Provider Description when Provider Type equals S) of the Agency That Operates the Primary Approach Control Facility/Functions
apchPProvTypeCd ← APCH_P_PROV_TYPE_CD	ApchPProvTypeCd	Provider Agency Type Code for Agency that Operates the Primary Approach Control Facility/Functions	A — Airport (with ATCT) C — ARTCC S — Special T — TRACON
secondaryApchRadioCall ← SECONDARY_APCH_RADIO_CALL	SecondaryApchRadioCall	Radio Call of Facility That Furnishes Secondary Approach Control	30 values ALBUQUERQUE ARTCC — Albuquerque Air Route Traffic Control Center ATLANTA ARTCC — Atlanta Air Route Traffic Control Center BANGOR — Bangor Approach Control BOSTON ARTCC — Boston Air Route Traffic Control Center CHARLESTON — Charleston Approach Control CHICAGO ARTCC — Chicago Air Route Traffic Control Center CLEVELAND ARTCC — Cleveland Air Route Traffic Control Center COLUMBIA — Columbia Approach Control DENVER ARTCC — Denver Air Route Traffic Control Center DETROIT — Detroit Approach Control FORT WORTH ARTCC — Fort Worth Air Route Traffic Control Center HCF CENTER — Honolulu Control Facility Center HOUSTON ARTCC — Houston Air Route Traffic Control Center INDIANAPOLIS ARTCC — Indianapolis Air Route Traffic Control Center JACKSONVILLE ARTCC — Jacksonville Air Route Traffic Control Center KANSAS CITY — Kansas City Approach Control KANSAS CITY ARTCC — Kansas City Air Route Traffic Control Center L.A. CENTER ARTCC — Los Angeles Center Air Route Traffic Control Center MEMPHIS ARTCC — Memphis Air Route Traffic Control Center MIAMI — Miami Approach Control MIAMI ARTCC — Miami Air Route Traffic Control Center MINNEAPOLIS ARTCC — Minneapolis Air Route Traffic Control Center NEW YORK ARTCC — New York Air Route Traffic Control Center OAKLAND ARTCC — Oakland Air Route Traffic Control Center PHOENIX — Phoenix Approach Control POTOMAC — Potomac Approach Control SALT LAKE ARTCC — Salt Lake City Air Route Traffic Control Center SEATTLE ARTCC — Seattle Air Route Traffic Control Center SOCAL — Southern California TRACON WASHINGTON ARTCC — Washington Air Route Traffic Control Center
apchSProvider ← APCH_S_PROVIDER	ApchSProvider	Facility ID (or Provider Description when Provider Type equals S) of the Agency That Operates the Secondary Approach Control Facility/Functions	31 values APCH/S CALL IS CHICAGO ARTCC — Chicago ARTCC provides secondary approach control BGR — Bangor TRACON CAE — Columbia ATCT-TRACON CRW — Charleston ATCT D21 — Detroit TRACON MCI — Kansas City ATCT-TRACON MIA — Miami ATCT-TRACON P50 — Phoenix TRACON PCT — Potomac TRACON SCT — Southern California TRACON ZAB — Albuquerque ARTCC ZAU — Chicago ARTCC ZBW — Boston ARTCC ZDC — Washington ARTCC ZDV — Denver ARTCC ZFW — Fort Worth ARTCC ZHN — Honolulu Control Facility ZHU — Houston ARTCC ZID — Indianapolis ARTCC ZJX — Jacksonville ARTCC ZKC — Kansas City ARTCC ZLA — Los Angeles ARTCC ZLC — Salt Lake City ARTCC ZMA — Miami ARTCC ZME — Memphis ARTCC ZMP — Minneapolis ARTCC ZNY — New York ARTCC ZOA — Oakland ARTCC ZOB — Cleveland ARTCC ZSE — Seattle ARTCC ZTL — Atlanta ARTCC
apchSProvTypeCd ← APCH_S_PROV_TYPE_CD	ApchPProvTypeCd	Provider Agency Type Code for Agency that Operates the Secondary Approach Control Facility/Functions	A — Airport (with ATCT) C — ARTCC S — Special T — TRACON
primaryDepRadioCall ← PRIMARY_DEP_RADIO_CALL	String	Radio Call of Facility That Furnishes Primary Departure Control
depPProvider ← DEP_P_PROVIDER	String	Facility ID (or Provider Description when Provider Type equals S) of the Agency That Operates the Primary Departure Control Facility/Functions
depPProvTypeCd ← DEP_P_PROV_TYPE_CD	ApchPProvTypeCd	Provider Agency Type Code for Agency that Operates the Primary Departure Control Facility/Functions	A — Airport (with ATCT) C — ARTCC S — Special T — TRACON
secondaryDepRadioCall ← SECONDARY_DEP_RADIO_CALL	SecondaryApchRadioCall	Radio Call of Facility That Furnishes Secondary Departure Control	30 values ALBUQUERQUE ARTCC — Albuquerque Air Route Traffic Control Center ATLANTA ARTCC — Atlanta Air Route Traffic Control Center BANGOR — Bangor Approach Control BOSTON ARTCC — Boston Air Route Traffic Control Center CHARLESTON — Charleston Approach Control CHICAGO ARTCC — Chicago Air Route Traffic Control Center CLEVELAND ARTCC — Cleveland Air Route Traffic Control Center COLUMBIA — Columbia Approach Control DENVER ARTCC — Denver Air Route Traffic Control Center DETROIT — Detroit Approach Control FORT WORTH ARTCC — Fort Worth Air Route Traffic Control Center HCF CENTER — Honolulu Control Facility Center HOUSTON ARTCC — Houston Air Route Traffic Control Center INDIANAPOLIS ARTCC — Indianapolis Air Route Traffic Control Center JACKSONVILLE ARTCC — Jacksonville Air Route Traffic Control Center KANSAS CITY — Kansas City Approach Control KANSAS CITY ARTCC — Kansas City Air Route Traffic Control Center L.A. CENTER ARTCC — Los Angeles Center Air Route Traffic Control Center MEMPHIS ARTCC — Memphis Air Route Traffic Control Center MIAMI — Miami Approach Control MIAMI ARTCC — Miami Air Route Traffic Control Center MINNEAPOLIS ARTCC — Minneapolis Air Route Traffic Control Center NEW YORK ARTCC — New York Air Route Traffic Control Center OAKLAND ARTCC — Oakland Air Route Traffic Control Center PHOENIX — Phoenix Approach Control POTOMAC — Potomac Approach Control SALT LAKE ARTCC — Salt Lake City Air Route Traffic Control Center SEATTLE ARTCC — Seattle Air Route Traffic Control Center SOCAL — Southern California TRACON WASHINGTON ARTCC — Washington Air Route Traffic Control Center
depSProvider ← DEP_S_PROVIDER	DepSProvider	Facility ID (or Provider Description when Provider Type equals S) of the Agency That Operates the Secondary Departure Control Facility/Functions	31 values BGR — Bangor TRACON CAE — Columbia ATCT-TRACON CRW — Charleston ATCT D21 — Detroit TRACON DEP/S CALL IS CHICAGO ARTCC — Chicago ARTCC provides secondary departure control MCI — Kansas City ATCT-TRACON MIA — Miami ATCT-TRACON P50 — Phoenix TRACON PCT — Potomac TRACON SCT — Southern California TRACON ZAB — Albuquerque ARTCC ZAU — Chicago ARTCC ZBW — Boston ARTCC ZDC — Washington ARTCC ZDV — Denver ARTCC ZFW — Fort Worth ARTCC ZHN — Honolulu Control Facility ZHU — Houston ARTCC ZID — Indianapolis ARTCC ZJX — Jacksonville ARTCC ZKC — Kansas City ARTCC ZLA — Los Angeles ARTCC ZLC — Salt Lake City ARTCC ZMA — Miami ARTCC ZME — Memphis ARTCC ZMP — Minneapolis ARTCC ZNY — New York ARTCC ZOA — Oakland ARTCC ZOB — Cleveland ARTCC ZSE — Seattle ARTCC ZTL — Atlanta ARTCC
depSProvTypeCd ← DEP_S_PROV_TYPE_CD	ApchPProvTypeCd	Provider Agency Type Code for Agency that Operates the Secondary Departure Control Facility/Functions	A — Airport (with ATCT) C — ARTCC S — Special T — TRACON
ctlFacApchDepCalls ← CTL_FAC_APCH_DEP_CALLS	String	Approach/Departure Call associated with a Control Facility
apchDepOperCode ← APCH_DEP_OPER_CODE	ApchDepOperCode	Agency Type Code that Operates the Control Facility	A — U.S. Air Force F — Federal Aviation Administration N — U.S. Navy R — U.S. Army
ctlPrvdingHrs ← CTL_PRVDING_HRS	String	Hours of Operation of the Primary Control Facility in Local Time
secondaryCtlPrvdingHrs ← SECONDARY_CTL_PRVDING_HRS	String	Hours of Operation of the Secondary Control Facility in Local Time

Relationships

atcAtis → [AtcAtis]on FACILITY_ID
atcRmk → [AtcRmk]on FACILITY_ID
atcSvc → [AtcSvc]on FACILITY_ID