Apparatus

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sensors Mode-S transponder

A24BA7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N247SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A24BA7
Octal
50445647
Decimal
10,636,199
Country
US
Tail
N247SY
Type
E75L
No current signal · last broadcast Jul 25, 04:15 UTC
Flights observed
613
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 04:15 UTC

Last known position

Most recent position reported by Mode-S A24BA7.

Country allocation

The ICAO 24-bit address A24BA7 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
SKW3903 - 11 2026-07-04
SKW4084 - 10 2026-07-05
SKW3754 - 9 2026-07-21
SKW3992 - 8 2026-06-18
SKW3894 - 8 2026-07-19
SKW3841 - 8 2026-07-23
SKW3777 - 8 2026-06-29
SKW3729 - 8 2026-07-04
SKW3693 SkyWest Airlines 8 2026-07-06
SKW4112 - 7 2026-07-13
SKW3740 - 7 2026-07-21
SKW4152 SkyWest Airlines 6 2026-07-04
SKW4148 - 6 2026-06-17
SKW4119 SkyWest Airlines 6 2026-06-06
SKW4031 - 6 2026-07-18
SKW3937 - 6 2026-07-02
SKW3883 SkyWest Airlines 6 2026-06-09
SKW3880 - 6 2026-07-03
SKW3779 SkyWest Airlines 6 2026-07-22
SKW3765 SkyWest Airlines 6 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SKW3676 PDX → SEA Jul 25, 01:30 UTCJul 25, 04:10 UTC2h 40m
2026-07-24 SKW3820 SLC → OAK Jul 24, 23:15 UTCJul 25, 00:30 UTC1h 15m
2026-07-24 SKW3820 SLC → OAK Jul 24, 20:30 UTCJul 24, 21:45 UTC1h 15m
2026-07-24 SKW4038 SEA → SJC Jul 24, 17:55 UTCJul 24, 19:00 UTC1h 5m
2026-07-24 SKW102P SGU → SLC Jul 24, 15:55 UTCJul 24, 17:00 UTC1h 5m
2026-07-24 SKW3828 SLC → BIL Jul 24, 00:50 UTCJul 24, 02:15 UTC1h 25m
2026-07-23 SKW3828 SLC → BIL Jul 23, 22:40 UTCJul 23, 23:35 UTC55m
2026-07-23 SKW3841 SBA → SLC Jul 23, 19:50 UTCJul 23, 21:35 UTC1h 45m
2026-07-23 SKW3841 SLC → SBA Jul 23, 17:15 UTCJul 23, 19:05 UTC1h 50m
2026-07-23 SKW3796 SFO → SEA Jul 23, 13:05 UTCJul 23, 15:40 UTC2h 35m
2026-07-23 SKW3620 SLC → XNA Jul 23, 00:55 UTCJul 23, 03:00 UTC2h 5m
2026-07-22 SKW3801 JFK → IAD Jul 22, 22:20 UTCJul 22, 23:55 UTC1h 35m
2026-07-22 SKW3779 OAK → SLC Jul 22, 19:50 UTCJul 22, 21:00 UTC1h 10m
2026-07-22 SKW3779 OAK → SLC Jul 22, 19:45 UTCJul 22, 20:58 UTC1h 13m
2026-07-21 SKW3754 GEG → SEA Jul 21, 20:10 UTCJul 21, 21:00 UTC50m
2026-07-21 SKW3754 SEA → GEG Jul 21, 18:05 UTCJul 21, 18:50 UTC45m
2026-07-21 SKW3740 - Jul 21, 14:50 UTCJul 21, 15:45 UTC55m
2026-07-21 SKW3740 BOI → SEA Jul 21, 14:46 UTCJul 21, 15:54 UTC1h 8m
2026-07-21 SKW3692 SLC → OAK Jul 21, 03:00 UTCJul 21, 04:00 UTC1h 0m
2026-07-21 SKW127T MFR → SEA Jul 21, 00:40 UTCJul 21, 01:30 UTC50m
2026-07-20 SKW3770 - Jul 20, 22:20 UTCJul 20, 23:25 UTC1h 5m
2026-07-20 SKW3966 AUS → CVG Jul 20, 18:45 UTCJul 20, 20:55 UTC2h 10m
2026-07-20 SKW3966 AUS → CVG Jul 20, 14:55 UTCJul 20, 17:30 UTC2h 35m
2026-07-20 SKW3972 - Jul 20, 12:35 UTCJul 20, 13:10 UTC35m
2026-07-20 SKW4017 BIS → MSP Jul 20, 06:10 UTCJul 20, 06:40 UTC30m
2026-07-20 SKW4017 BIS → MSP Jul 20, 06:06 UTCJul 20, 06:41 UTC35m
2026-07-20 SKW4043 HPN → ATL Jul 20, 03:00 UTCJul 20, 04:35 UTC1h 35m
2026-07-20 SKW4043 HPN → ATL Jul 20, 00:20 UTCJul 20, 01:50 UTC1h 30m
2026-07-19 SKW3958 - Jul 19, 21:55 UTCJul 19, 23:00 UTC1h 5m
2026-07-19 SKW3773 - Jul 19, 19:00 UTCJul 19, 20:30 UTC1h 30m
2026-07-19 SKW3700 SMF → LAX Jul 19, 16:45 UTCJul 19, 17:50 UTC1h 5m
2026-07-19 SKW3700 LAX → SMF Jul 19, 14:20 UTCJul 19, 15:25 UTC1h 5m
2026-07-19 SKW3759 JFK → BNA Jul 19, 04:55 UTCJul 19, 05:55 UTC1h 0m
2026-07-19 SKW3759 JFK → BNA Jul 19, 04:50 UTCJul 19, 06:00 UTC1h 10m
2026-07-19 SKW3759 JFK → BNA Jul 19, 02:50 UTCJul 19, 03:55 UTC1h 5m
2026-07-19 SKW3894 - Jul 19, 00:10 UTCJul 19, 01:15 UTC1h 5m
2026-07-18 SKW3894 - Jul 18, 22:10 UTCJul 18, 23:05 UTC55m
2026-07-18 SKW3755 LAX → SMF Jul 18, 19:05 UTCJul 18, 20:15 UTC1h 10m
2026-07-18 SKW164T SEA → SMF Jul 18, 16:20 UTCJul 18, 17:55 UTC1h 35m
2026-07-18 SKW4036 - Jul 18, 13:30 UTCJul 18, 14:20 UTC50m
2026-07-18 SKW4047 SEA → RDM Jul 18, 05:20 UTCJul 18, 06:00 UTC40m
2026-07-18 SKW4031 - Jul 18, 01:25 UTCJul 18, 03:35 UTC2h 11m
2026-07-17 SKW4031 SEA → ONT Jul 17, 22:05 UTCJul 18, 00:29 UTC2h 25m
2026-07-17 SKW3881 SMF → SEA Jul 17, 18:55 UTCJul 17, 20:20 UTC1h 25m
2026-07-17 SKW164T SEA → SMF Jul 17, 16:10 UTCJul 17, 17:44 UTC1h 35m
2026-07-17 SKW164T SEA → SMF Jul 17, 16:12 UTCJul 17, 17:42 UTC1h 30m
2026-07-17 SKW3781 MFR → SEA Jul 17, 13:55 UTCJul 17, 14:44 UTC50m
2026-07-17 SKW3954 SEA → MFR Jul 17, 05:04 UTCJul 17, 06:10 UTC1h 5m
2026-07-16 SKW3824 GEG → SEA Jul 16, 22:00 UTCJul 16, 22:40 UTC40m
2026-07-16 SKW3824 SEA → GEG Jul 16, 18:05 UTCJul 16, 18:44 UTC40m

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 N247SY page for operator, model, and routing details .

Mode-S A24BA7 frequently asked

What is Mode-S code A24BA7?
A24BA7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N247SY.
Where is Mode-S A24BA7 registered?
Mode-S code A24BA7 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 A24BA7 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 04:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A24BA7, octal 50445647, decimal 10,636,199.
What flights does A24BA7 operate?
Mode-S A24BA7 has broadcast 20 distinct callsigns, including SKW3903, SKW4084, SKW3754, SKW3992, SKW3894.