Pre-processed GeoJSON snapshot of US airspace geometry from the 2026-04-16 FAA NASR cycle. Data only - no query logic, no dependency on @squawk/airspace.

Part of the @squawk aviation library suite. See all packages on npm.

Coverage

• Class B, C, D, and E controlled airspace (E2 through E7 subtypes)
• Special Use Airspace: MOAs, restricted, prohibited, warning, alert, and national security areas
• ARTCC (Air Route Traffic Control Center) lateral boundaries for all US-controlled centers, published per stratum (LOW/HIGH/UTA, plus oceanic CTA/FIR where applicable)

Usage

import { usBundledAirspace } from '@squawk/airspace-data';

// Inspect metadata
console.log(usBundledAirspace.properties.nasrCycleDate); // YYYY-MM-DD
console.log(usBundledAirspace.properties.featureCount);

// Use with @squawk/airspace for zero-config airspace queries
import { createAirspaceResolver } from '@squawk/airspace';

const resolver = createAirspaceResolver({ data: usBundledAirspace });

Consumers who have their own data pipeline can use @squawk/airspace alone and pass any compatible GeoJSON dataset at initialization.

Data format

The export is a GeoJSON FeatureCollection. Each feature's geometry is a Polygon representing one airspace boundary. Feature properties include:

| Property | Type | Description | | --------------------- | -------------------- | ----------------------------------------------------------------------------------------------------------- | | type | string | Airspace type (CLASS_B, CLASS_C, CLASS_D, CLASS_E2-E7, MOA, RESTRICTED, ARTCC, etc.) | | name | string | Human-readable name | | identifier | string | NASR designator, airport identifier, or 3-letter ARTCC code | | floor | AltitudeBound | Lower vertical bound | | ceiling | AltitudeBound | Upper vertical bound | | state | string or null | Two-letter US state abbreviation | | controllingFacility | string or null | Controlling ARTCC or facility (null for ARTCC features) | | scheduleDescription | string or null | Operating schedule text | | artccStratum | ArtccStratum or null | For ARTCC features, the stratum (LOW, HIGH, UTA, CTA, FIR, CTA/FIR); null for all other types |

AltitudeBound is { valueFt: number, reference: 'MSL' | 'AGL' | 'SFC' }.

Data source

All geometry and metadata is derived from the FAA National Airspace System Resource (NASR) 28-day subscription, which is public domain. Class B/C/D/E boundaries come from the NASR ESRI Shapefile, SUA boundaries from the AIXM 5.0 XML files, and ARTCC boundaries from the ARB_BASE.csv and ARB_SEG.csv tables in the NASR CSV distribution. The build pipeline that produces this dataset lives in tools/build-airspace-data.