Airspace Types

This reference documents all airspace type codes used in the DYNAM Data API, including their mapping to OpenAIP types.

Standard airspace types

ID	Abbrev	Description	Usage	OpenAIP ID	OpenAIP Name
`01`	ADA	Advisory Area	Seen as a kind of FIZ or Meteo broadcast area	`0`	Other
`02`	ADIZ	Air Defense Identification Zone		`12`	Air Defense Identification Zone
`03`	ARTCC	Air Route Traffic Control Center	(only in the USA?)	`10`	Flight Information Region
`04`	ACC	Area Control Center		`27`	ACC Sector
`05`	BZ	Buffer Zone	IFR is not maintained by PFMS	`0`	Other
`06`	CA	Control Area		`26`	Control Area
`07`	(M)CTR	(MIL) Control Zone		`4`	Controlled Tower Region
`08`	FIR	Flight Information Region		`10`	Flight Information Region
`09`	OCA	Oceanic Control Area		`26`	Control Area
`10`	RA	Radar Area		`26`	Control Area
`11`	MTMA/TCA	(MIL) Terminal Maneuvering Area		`7`	Terminal Maneuvering Area
`12`	UIR	Upper Flight Information Region		`11`	Upper Flight Information Region
`13`	DFIR	Delegated FIR		`10`	Flight Information Region
`21`	TIZ	Traffic Information Zone		`23`	Traffic Information Zone
`22`	TIA	Traffic Information Area		`24`	Traffic Information Area
`23`	SRZ	Special Rules Zone	Restrictive	`1`	Restricted
`24`	TFR	Temporary Flight Restriction		`3`	Prohibited
`30`	WX	Weather Area		`0`	Other
`79`	MATZ	Military Air Traffic Zone		`14`	Military Airport Traffic Zone
`80`	ATZ	Aerodrome Traffic Zone		`13`	Airport Traffic Zone
`81`	FISA	Flight Information Service Area		`33`	FIS Sector
`82`	TMZ	Transponder Mandatory Zone		`5`	Transponder Mandatory Zone
`83`	MBZ/RMZ	Mandatory Broadcast/Radio Mandatory Zone		`6`	Radio Mandatory Zone
`84`	ASR	Aerial Sporting and Recreation Area		`28`	Aerial Sporting Or Recreational Activity
`85`	AWY	Airway		`15`	Airway
`86`	TRZ	Transponder Recommended Zone		`5`	Transponder Mandatory Zone
`87`	VFRR	VFR Route		`32`	VFR Sector
`88`	LARS	Low Altitude Radar Service Area	(UK only)	`33`	FIS Sector
`89`	SQWK	Squawk Area		`5`	Transponder Mandatory Zone
`90`	FNA	Fly Neighborly Area		`18`	Warning Area
`91`	GLDR	Glider Area/Sector		`21`	Gliding Sector
`92`	USPACE	U-space (UAV) Area		`5`	Transponder Mandatory Zone
`99`	GNOTAM	Graphical NOTAM	Temporary NOTAM geometry returned in the same GeoJSON collection as airspaces	`99`	Graphical NOTAM

Letter-code types

ID	Description	Usage	OpenAIP ID	OpenAIP Name
`L`	Alert Area	When ground is threat to aircraft	`17`	Alert Area
`P`	Prohibited Area		`3`	Prohibited
`R`	Restricted Area		`1`	Restricted
`W`	Warning Area	When aircraft is threat to ground	`18`	Warning Area
`N`	Danger Area		`2`	Danger
`T`	TRA/TSA	Temporary Reserved/Segregated Area. Mapped to TSA since that’s the most restrictive	`9`	Temporary Segregated Area
`M`	MIL	Military Area. When restrictive, typed as R instead of M. Otherwise class G	`25`	Military Training Area

Unmapped OpenAIP types

These OpenAIP types exist but are mapped to other EasyVFR types:

OpenAIP ID	OpenAIP Name	EasyVFR mapping
`8`	Temporary Reserved Area	Typed as T (TRA/TSA)
`16`	Military Training Route	Typed as M (MIL)
`19`	Protected Area	Typed as the related SUAS type
`20`	Helicopter Traffic Zone	Treated as fixedwing
`22`	Transponder Setting	Typed as 82 (TMZ)
`29`	Low Altitude Overflight Restriction	Typed as W
`30`	Military Route	Typed as M (MIL)
`31`	TSA/TRA Feeding Route	Typed as T (TRA/TSA)
`34`	Lower Traffic Area	Typed as 22 (TIA)
`35`	Upper Traffic Area	Typed as 22 (TIA)
`36`	Military Control Tower Region	Typed as 07 ((M)CTR)

Usage notes

Type 99 (GNOTAM): This special type is used for graphical NOTAM features mixed with regular airspaces. They have the same GeoJSON and easyvfr.dynamicAirspaceMapping structure as airspaces, but represent temporary NOTAM geometry rather than permanent airspace boundaries.
Letter codes vs numeric codes: The single-letter type codes (L, P, R, W, N, T, M) represent common restrictive categories used internationally. Treat them as type identifiers, not as ICAO class values.
OpenAIP compatibility: The API maintains OpenAIP-compatible type mapping to simplify integration with existing aviation software. Use this table rather than assuming a generic OpenAIP enum maps one-to-one.