Apparatus

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sensors Mode-S transponder

A0D6FB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N153SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A0D6FB
Octal
50153373
Decimal
10,540,795
Country
US
Tail
N153SY
Type
E75L
No current signal · last broadcast 4h ago
Flights observed
500
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A0D6FB.

Country allocation

The ICAO 24-bit address A0D6FB 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
SKW6005 - 8 2026-07-13
SKW5371 SkyWest Airlines 8 2026-06-03
SKW5811 SkyWest Airlines 7 2026-06-13
SKW6004 - 6 2026-07-09
SKW5763 SkyWest Airlines 6 2026-06-18
SKW5504 - 6 2026-07-13
SKW5823 SkyWest Airlines 5 2026-06-19
SKW5659 - 5 2026-06-20
SKW5260 - 5 2026-07-03
SKW4718 - 5 2026-06-23
SKW5934 - 4 2026-06-25
SKW5919 SkyWest Airlines 4 2026-04-17
SKW5904 SkyWest Airlines 4 2026-05-31
SKW5871 - 4 2026-06-13
SKW5757 - 4 2026-06-22
SKW5680 SkyWest Airlines 4 2026-06-19
SKW5672 - 4 2026-07-02
SKW5639 SkyWest Airlines 4 2026-05-17
SKW5591 - 4 2026-06-24
SKW5545 SkyWest Airlines 4 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SKW5844 - Jul 15, 00:20 UTCJul 15, 02:05 UTC1h 45m
2026-07-14 SKW4766 ORD → OKC Jul 14, 21:05 UTCJul 14, 22:45 UTC1h 39m
2026-07-14 SKW5309 - Jul 14, 18:15 UTCJul 14, 19:35 UTC1h 20m
2026-07-14 SKW5218 - Jul 14, 15:55 UTCJul 14, 16:55 UTC1h 0m
2026-07-14 SKW5715 - Jul 14, 13:30 UTCJul 14, 14:25 UTC55m
2026-07-14 SKW5785 - Jul 14, 01:15 UTCJul 14, 02:05 UTC50m
2026-07-13 SKW5334 - Jul 13, 21:15 UTCJul 13, 23:10 UTC1h 55m
2026-07-13 SKW5449 - Jul 13, 17:40 UTCJul 13, 19:30 UTC1h 50m
2026-07-13 SKW5504 - Jul 13, 14:45 UTCJul 13, 15:55 UTC1h 10m
2026-07-13 SKW5504 MCI → ORD Jul 13, 14:56 UTCJul 13, 15:41 UTC45m
2026-07-13 SKW6005 - Jul 13, 12:15 UTCJul 13, 13:15 UTC1h 0m
2026-07-13 SKW6005 ORD → MCI Jul 13, 12:21 UTCJul 13, 13:29 UTC1h 8m
2026-07-12 SKW6012 - Jul 12, 23:15 UTCJul 13, 01:30 UTC2h 15m
2026-07-12 SKW545H ORD → JAX Jul 12, 20:05 UTCJul 12, 22:05 UTC2h 0m
2026-07-12 SKW4653 - Jul 12, 16:30 UTCJul 12, 17:50 UTC1h 20m
2026-07-12 SKW4653 BNA → ORD Jul 12, 16:32 UTCJul 12, 17:36 UTC1h 4m
2026-07-12 SKW5304 ORD → BNA Jul 12, 14:05 UTCJul 12, 15:10 UTC1h 5m
2026-07-12 SKW5690 - Jul 12, 10:10 UTCJul 12, 12:10 UTC2h 0m
2026-07-11 SKW745P - Jul 11, 23:40 UTCJul 12, 01:20 UTC1h 40m
2026-07-11 SKW4699 - Jul 11, 21:50 UTCJul 11, 21:55 UTC5m
2026-07-11 SKW4699 - Jul 11, 20:00 UTCJul 11, 21:55 UTC1h 55m
2026-07-11 SKW4699 ILM → ORD Jul 11, 19:55 UTCJul 11, 21:34 UTC1h 39m
2026-07-11 SKW5932 - Jul 11, 17:00 UTCJul 11, 18:40 UTC1h 40m
2026-07-11 SKW5572 STL → ORD Jul 11, 14:35 UTCJul 11, 15:25 UTC50m
2026-07-11 SKW5572 STL → ORD Jul 11, 14:37 UTCJul 11, 15:28 UTC51m
2026-07-11 SKW5958 - Jul 11, 12:40 UTCJul 11, 13:45 UTC1h 5m
2026-07-11 SKW4754 - Jul 11, 09:40 UTCJul 11, 10:30 UTC50m
2026-07-11 SKW5255 ORD → DTW Jul 11, 03:05 UTCJul 11, 03:50 UTC45m
2026-07-10 SKW5334 ORF → ORD Jul 10, 21:15 UTCJul 10, 23:15 UTC2h 0m
2026-07-10 SKW5449 - Jul 10, 17:35 UTCJul 10, 19:20 UTC1h 45m
2026-07-10 SKW5504 - Jul 10, 15:15 UTCJul 10, 16:15 UTC1h 0m
2026-07-10 SKW5504 MCI → ORD Jul 10, 15:22 UTCJul 10, 16:33 UTC1h 11m
2026-07-10 SKW6005 - Jul 10, 12:40 UTCJul 10, 13:45 UTC1h 5m
2026-07-09 SKW6004 - Jul 9, 23:00 UTCJul 9, 23:45 UTC45m
2026-07-09 SKW6004 - Jul 9, 20:45 UTCJul 9, 22:55 UTC2h 10m
2026-07-09 SKW5574 - Jul 9, 16:55 UTCJul 9, 19:20 UTC2h 25m
2026-07-09 SKW5192 - Jul 9, 13:05 UTCJul 9, 13:25 UTC20m
2026-07-07 SKW6083 - Jul 7, 01:45 UTCJul 7, 03:55 UTC2h 10m
2026-07-05 SKW5424 - Jul 5, 17:35 UTCJul 5, 19:40 UTC2h 5m
2026-07-05 SKW5424 ORD → BGR Jul 5, 17:41 UTCJul 5, 19:39 UTC1h 58m
2026-07-05 SKW455P ROA → ORD Jul 5, 14:15 UTCJul 5, 15:45 UTC1h 30m
2026-07-05 SKW5337 ORD → ROA Jul 5, 00:05 UTCJul 5, 01:35 UTC1h 30m
2026-07-04 SKW4795 - Jul 4, 19:30 UTCJul 4, 22:20 UTC2h 50m
2026-07-04 SKW5315 DEN → TUL Jul 4, 16:25 UTCJul 4, 17:40 UTC1h 15m
2026-07-04 SKW5895 - Jul 4, 12:25 UTCJul 4, 14:05 UTC1h 40m
2026-07-04 SKW5895 SGF → DEN Jul 4, 11:15 UTCJul 4, 14:04 UTC2h 49m
2026-07-04 SKW5687 DEN → SGF Jul 4, 03:08 UTCJul 4, 04:32 UTC1h 24m
2026-07-04 SKW5687 - Jul 4, 03:10 UTCJul 4, 04:35 UTC1h 25m
2026-07-03 SKW5260 - Jul 3, 22:30 UTCJul 4, 00:55 UTC2h 25m
2026-07-03 SKW5260 SHV → DEN Jul 3, 22:44 UTCJul 4, 00:55 UTC2h 11m

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 N153SY page for operator, model, and routing details .

Mode-S A0D6FB frequently asked

What is Mode-S code A0D6FB?
A0D6FB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N153SY.
Where is Mode-S A0D6FB registered?
Mode-S code A0D6FB 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 A0D6FB broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0D6FB, octal 50153373, decimal 10,540,795.
What flights does A0D6FB operate?
Mode-S A0D6FB has broadcast 20 distinct callsigns, including SKW6005, SKW5371, SKW5811, SKW6004, SKW5763.