Apparatus

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sensors Mode-S transponder

A987AA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N713EV · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A987AA
Octal
52303652
Decimal
11,110,314
Country
US
Tail
N713EV
Type
CRJ7
No current signal · last broadcast 2h ago
Flights observed
282
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A987AA.

Country allocation

The ICAO 24-bit address A987AA falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
SKW4245 SkyWest Airlines 19 2026-05-29
SKW4229 SkyWest Airlines 19 2026-05-20
SKW4283 SkyWest Airlines 18 2026-05-28
SKW4274 SkyWest Airlines 16 2026-05-15
SKW4262 SkyWest Airlines 11 2026-05-20
SKW4252 SkyWest Airlines 10 2026-05-16
SKW4238 SkyWest Airlines 9 2026-05-19
SKW4236 SkyWest Airlines 9 2026-05-27
SKW4232 SkyWest Airlines 9 2026-05-16
SKW4329 SkyWest Airlines 8 2026-05-27
SKW4330 SkyWest Airlines 7 2026-05-06
SKW4314 SkyWest Airlines 7 2026-05-18
SKW4305 SkyWest Airlines 7 2026-05-08
SKW4295 SkyWest Airlines 7 2026-05-18
SKW4266 SkyWest Airlines 7 2026-05-09
SKW4301 SkyWest Airlines 6 2026-05-28
SKW4297 SkyWest Airlines 6 2026-05-17
SKW4291 SkyWest Airlines 6 2026-05-26
SKW4264 SkyWest Airlines 6 2026-05-19
SKW4336 SkyWest Airlines 5 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SKW145H DTW → CIU May 29, 22:50 UTCMay 29, 23:20 UTC30m
2026-05-29 SKW4231 CIU → DTW May 29, 20:30 UTCMay 29, 21:05 UTC35m
2026-05-29 SKW4242 MSP → CIU May 29, 18:05 UTCMay 29, 18:55 UTC50m
2026-05-29 SKW4245 INL → MSP May 29, 16:10 UTCMay 29, 16:40 UTC30m
2026-05-29 SKW4245 INL → MSP May 29, 14:25 UTCMay 29, 14:50 UTC25m
2026-05-29 SKW4336 BRD → MSP May 29, 11:50 UTCMay 29, 12:10 UTC20m
2026-05-28 SKW4301 BRD → MSP May 28, 23:30 UTCMay 28, 23:50 UTC20m
2026-05-28 SKW4301 BRD → MSP May 28, 23:34 UTCMay 28, 23:49 UTC15m
2026-05-28 SKW4283 BJI → MSP May 28, 19:55 UTCMay 28, 20:25 UTC30m
2026-05-28 SKW4283 BJI → MSP May 28, 18:05 UTCMay 28, 18:35 UTC30m
2026-05-28 SKW4245 INL → MSP May 28, 16:05 UTCMay 28, 16:35 UTC30m
2026-05-28 SKW4245 INL → MSP May 28, 14:25 UTCMay 28, 14:50 UTC25m
2026-05-28 SKW4336 BRD → MSP May 28, 11:45 UTCMay 28, 12:10 UTC25m
2026-05-27 SKW4301 BRD → MSP May 27, 23:05 UTCMay 27, 23:30 UTC25m
2026-05-27 SKW4236 HIB → MSP May 27, 20:50 UTCMay 27, 21:15 UTC25m
2026-05-27 SKW4236 HIB → MSP May 27, 18:30 UTCMay 27, 18:55 UTC25m
2026-05-27 SKW4329 MSP → GFK May 27, 16:55 UTCMay 27, 17:40 UTC45m
2026-05-27 SKW4329 MSP → GFK May 27, 14:05 UTCMay 27, 14:50 UTC45m
2026-05-27 SKW4298 ATY → MSP May 27, 11:55 UTCMay 27, 12:20 UTC25m
2026-05-26 SKW4299 ABR → MSP May 26, 23:19 UTCMay 26, 23:45 UTC25m
2026-05-26 SKW4236 HIB → MSP May 26, 21:09 UTCMay 26, 21:40 UTC30m
2026-05-26 SKW4236 HIB → MSP May 26, 18:24 UTCMay 26, 18:45 UTC20m
2026-05-26 SKW4329 MSP → GFK May 26, 16:05 UTCMay 26, 16:55 UTC50m
2026-05-26 SKW4329 MSP → GFK May 26, 14:05 UTCMay 26, 14:45 UTC40m
2026-05-26 SKW4303 BJI → MSP May 26, 12:20 UTCMay 26, 12:45 UTC25m
2026-05-26 SKW4291 MSP → BJI May 26, 02:55 UTCMay 26, 03:25 UTC30m
2026-05-25 SKW4283 BJI → MSP May 25, 20:19 UTCMay 25, 20:50 UTC30m
2026-05-25 SKW4283 BJI → MSP May 25, 18:20 UTCMay 25, 18:50 UTC30m
2026-05-25 SKW4273 MSP → BRD May 25, 16:10 UTCMay 25, 16:30 UTC20m
2026-05-25 SKW4273 MSP → BRD May 25, 14:30 UTCMay 25, 15:00 UTC30m
2026-05-25 SKW4292 RHI → MSP May 25, 11:50 UTCMay 25, 12:30 UTC40m
2026-05-24 SKW4233 MSP → RHI May 24, 23:10 UTCMay 24, 23:35 UTC25m
2026-05-24 SKW4245 INL → MSP May 24, 16:10 UTCMay 24, 16:40 UTC30m
2026-05-24 SKW4245 INL → MSP May 24, 16:13 UTCMay 24, 16:35 UTC22m
2026-05-24 SKW4245 INL → MSP May 24, 14:25 UTCMay 24, 14:50 UTC25m
2026-05-24 SKW4292 RHI → MSP May 24, 11:40 UTCMay 24, 12:15 UTC35m
2026-05-23 SKW4233 MSP → RHI May 23, 23:00 UTCMay 23, 23:25 UTC25m
2026-05-23 SKW4329 MSP → GFK May 23, 17:10 UTCMay 23, 18:00 UTC50m
2026-05-23 SKW4329 MSP → GFK May 23, 15:25 UTCMay 23, 16:00 UTC35m
2026-05-23 SKW184C CIU → MSP May 23, 11:15 UTCMay 23, 12:15 UTC1h 0m
2026-05-22 SKW145H DTW → CIU May 22, 22:15 UTCMay 22, 22:45 UTC30m
2026-05-22 SKW4231 CIU → DTW May 22, 20:15 UTCMay 22, 20:55 UTC40m
2026-05-22 SKW4242 MSP → CIU May 22, 18:00 UTCMay 22, 18:40 UTC40m
2026-05-22 SKW4303 BJI → MSP May 22, 11:45 UTCMay 22, 12:20 UTC35m
2026-05-22 SKW4291 MSP → BJI May 22, 03:07 UTCMay 22, 03:19 UTC12m
2026-05-22 SKW4291 MSP → BJI May 22, 02:50 UTCMay 22, 03:15 UTC25m
2026-05-21 SKW4283 BJI → MSP May 21, 20:00 UTCMay 21, 20:30 UTC30m
2026-05-21 SKW4283 BJI → MSP May 21, 19:59 UTCMay 21, 20:25 UTC26m
2026-05-21 SKW4283 BJI → MSP May 21, 18:10 UTCMay 21, 18:35 UTC25m
2026-05-21 SKW4245 INL → MSP May 21, 16:15 UTCMay 21, 16:50 UTC35m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N713EV page for operator, model, and routing details .

Mode-S A987AA frequently asked

What is Mode-S code A987AA?
A987AA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N713EV.
Where is Mode-S A987AA registered?
Mode-S code A987AA is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A987AA broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A987AA, octal 52303652, decimal 11,110,314.
What flights does A987AA operate?
Mode-S A987AA has broadcast 20 distinct callsigns, including SKW4245, SKW4229, SKW4283, SKW4274, SKW4262.