CifpControlledAirspace

Defines the boundaries and properties of controlled airspace (Class B, C, D, etc.) as sequences of boundary-defining points

Source: CIFPTable: CIFP_CONTROLLED_AIRSPACEVersion: 239462ba9c35 (effective 2026-04-16)

Each airspace boundary is described by multiple sequential records (SEQUENCE_NUMBER). Only the first record in a group typically contains the full airspace metadata (limits, name); subsequent records define additional boundary points. ARC_ORIGIN and ARC_DISTANCE/BEARING fields are only populated for arc boundary segments.

Example query

# Introspect the CifpControlledAirspace type in GraphiQL at https://api.nav.sortie.co/graphql
# Example shape (pair with a compatible root query field):
{
  # ...rootQuery... {
    recordType
    customerAreaCode
    sectionCode
    icaoCode
  # }
}

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

Fields (29)

Field	Type	Description	Units	Enum
recordType ← RECORD_TYPE	RecordType	Indicates whether the record is a standard record or tailored record		S — Standard record
customerAreaCode ← CUSTOMER_AREA_CODE	CifpControlledAirspaceCustomerAreaCode	Geographic region or customer area for which the data applies		CAN — Canada and Alaska LAM — Latin America and Caribbean PAC — Pacific USA — Contiguous United States
sectionCode ← SECTION_CODE	CifpControlledAirspaceSectionCode	ARINC 424 section code identifying the record type; UC indicates controlled airspace		UC — Controlled Airspace
icaoCode ← ICAO_CODE	CifpControlledAirspaceIcaoCode	ICAO region code identifying the country or geographic region of the airspace		12 values K1 — Contiguous US (eastern) K2 — Contiguous US (central) K3 — Contiguous US (southern) K4 — Contiguous US (western) K5 — Contiguous US (north-central) K6 — Contiguous US (south-central) K7 — Contiguous US (northwestern) PA — Alaska PG — Guam and Mariana Islands PH — Hawaii TI — US Virgin Islands TJ — Puerto Rico
airspaceType ← AIRSPACE_TYPE	AirspaceType	Type of controlled airspace being described		0 — Class D surface area without weather observer 1 — Class D surface area with weather observer C — Class C airspace K — Terminal Control Area (TCA) / Class B airspace P — Class B airspace T — Terminal Radar Service Area (TRSA)
airspaceCenter ← AIRSPACE_CENTER	String	Identifier of the navaid, fix, or airport that serves as the center reference for the airspace
sectionCode2 ← SECTION_CODE_2	CifpControlledAirspaceSectionCode2	Section code qualifying the AIRSPACE_CENTER identifier type		HA — Heliport PA — Airport
airspaceClassification ← AIRSPACE_CLASSIFICATION	AirspaceClassification	FAA airspace classification of the controlled airspace		B — Class B airspace C — Class C airspace D — Class D airspace
multipleCode ← MULTIPLE_CODE	MultipleCode	Alphabetic code used to differentiate multiple airspace areas that share the same airspace center identifier; letters A-Z used sequentially		26 values A — First airspace segment for this center B — Second airspace segment for this center C — Third airspace segment for this center D — Fourth airspace segment for this center E — Fifth airspace segment for this center F — Sixth airspace segment for this center G — Seventh airspace segment for this center H — Eighth airspace segment for this center I — Ninth airspace segment for this center J — Tenth airspace segment for this center K — Eleventh airspace segment for this center L — Twelfth airspace segment for this center M — Thirteenth airspace segment for this center N — Fourteenth airspace segment for this center O — Fifteenth airspace segment for this center P — Sixteenth airspace segment for this center Q — Seventeenth airspace segment for this center R — Eighteenth airspace segment for this center S — Nineteenth airspace segment for this center T — Twentieth airspace segment for this center U — Twenty-first airspace segment for this center V — Twenty-second airspace segment for this center W — Twenty-third airspace segment for this center X — Twenty-fourth airspace segment for this center Y — Twenty-fifth airspace segment for this center Z — Twenty-sixth airspace segment for this center
sequenceNumber ← SEQUENCE_NUMBER	String	Sequential number ordering the boundary-defining records within a single airspace definition; increments in steps of 10
continuationRecordNo ← CONTINUATION_RECORD_NO	String	Continuation record number; 0 indicates the primary record, numbers 1 and above indicate continuation records with additional data for the same sequence point
level ← LEVEL	String	Indicates the altitude level classification of the airspace (high, low, or both); typically null for terminal controlled airspace
timeCode ← TIME_CODE	String	Code indicating the hours of operation of the airspace; null if the airspace is continuous (H24)
notam ← NOTAM	String	Indicates whether the airspace is subject to activation by NOTAM
boundaryVia ← BOUNDARY_VIA	BoundaryVia	Defines the type of path used to connect this boundary point to the next boundary point in sequence		8 values CE — Circle centered on AIRSPACE_CENTER, last point of boundary (end) G — Great circle (straight line) to next point GE — Great circle to next point, last point of boundary (end) H — Rhumb line to next point L — Counter-clockwise (left) arc to next point LE — Counter-clockwise (left) arc to next point, last point of boundary (end) R — Clockwise (right) arc to next point RE — Clockwise (right) arc to next point, last point of boundary (end)
latitude ← LATITUDE	String	Latitude of the boundary point for this sequence record, encoded as hemisphere (N/S) followed by DDMMSSCC (degrees, minutes, seconds, hundredths of seconds)	degrees
longitude ← LONGITUDE	String	Longitude of the boundary point for this sequence record, encoded as hemisphere (E/W) followed by DDDMMSSCC (degrees, minutes, seconds, hundredths of seconds)	degrees
arcOriginLatitude ← ARC_ORIGIN_LATITUDE	String	Latitude of the center point of an arc boundary segment; populated only when BOUNDARY_VIA is R, L, or CE	degrees
arcOriginLongitude ← ARC_ORIGIN_LONGITUDE	String	Longitude of the center point of an arc boundary segment; populated only when BOUNDARY_VIA is R, L, or CE	degrees
arcDistance ← ARC_DISTANCE	String	Radius of the arc boundary segment measured from the arc origin; stored as a 4-digit integer representing tenths of nautical miles (e.g., 0052 = 5.2 NM)	tenths of nautical miles
arcBearing ← ARC_BEARING	String	True bearing from the arc origin center point to the arc boundary point; stored as a 4-digit integer in tenths of degrees (e.g., 2458 = 245.8 degrees)	tenths of degrees true
rnp ← RNP	String	Required Navigation Performance value applicable within this airspace boundary segment; null if not specified	nautical miles
lowerLimit ← LOWER_LIMIT	LowerLimit	Lower altitude limit of the airspace, encoded as a 5-character value in hundreds of feet MSL or the special value GND for ground level; only populated on the first sequence record of an airspace definition	hundreds of feet MSL	72 values GND — Ground level (surface) 00300 — 00300 00301 — 00301 00501 — 00501 00600 — 00600 00700 — 00700 00701 — 00701 00801 — 00801 00900 — 00900 01000 — 01000 01001 — 01001 01100 — 01100 01101 — 01101 01200 — 01200 01201 — 01201 01300 — 01300 01400 — 01400 01500 — 01500 01501 — 01501 01600 — 01600 01700 — 01700 01800 — 01800 01900 — 01900 02000 — 02000 02100 — 02100 02200 — 02200 02300 — 02300 02400 — 02400 02500 — 02500 02501 — 02501 02600 — 02600 02700 — 02700 02800 — 02800 02900 — 02900 03000 — 03000 03100 — 03100 03200 — 03200 03300 — 03300 03400 — 03400 03500 — 03500 03600 — 03600 03700 — 03700 03800 — 03800 03900 — 03900 04000 — 04000 04200 — 04200 04300 — 04300 04400 — 04400 04500 — 04500 04600 — 04600 04800 — 04800 04900 — 04900 05000 — 05000 05200 — 05200 05300 — 05300 05500 — 05500 05800 — 05800 06000 — 06000 06500 — 06500 06800 — 06800 06900 — 06900 07000 — 07000 07200 — 07200 07500 — 07500 07800 — 07800 08000 — 08000 08500 — 08500 08600 — 08600 09000 — 09000 10000 — 10000 10500 — 10500 11000 — 11000
unitIndicator ← UNIT_INDICATOR	UnitIndicator	Unit of measurement for the LOWER_LIMIT altitude value		A — Altitude in feet MSL M — Flight level (hundreds of feet)
upperLimit ← UPPER_LIMIT	String	Upper altitude limit of the airspace encoded as a 5-character value in hundreds of feet MSL; only populated on the first sequence record of an airspace definition	hundreds of feet MSL
unitIndicator2 ← UNIT_INDICATOR_2	UnitIndicator	Unit of measurement for the UPPER_LIMIT altitude value		A — Altitude in feet MSL M — Flight level (hundreds of feet)
controlledAirspaceName ← CONTROLLED_AIRSPACE_NAME	String	Official name of the controlled airspace (e.g., city or facility name); only populated on the first sequence record of an airspace definition
fileRecordNo ← FILE_RECORD_NO	String	Sequential file record number assigned to this record within the CIFP data file for traceability
cycleDate ← CYCLE_DATE	String	AIRAC cycle date when this record was last updated, in YYNN format where YY is the two-digit year and NN is the AIRAC cycle number within that year