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sensors Mode-S transponder

A9AF29

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N723EV · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A9AF29
Octal
52327451
Decimal
11,120,425
Country
US
Tail
N723EV
Type
CRJ7
No current signal · last broadcast Jul 26, 19:25 UTC
Flights observed
566
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:25 UTC

Last known position

Most recent position reported by Mode-S A9AF29.

Country allocation

The ICAO 24-bit address A9AF29 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
SKW5723 - 9 2026-07-15
SKW5977 - 8 2026-07-17
SKW5565 SkyWest Airlines 8 2026-07-17
SKW5532 - 7 2026-07-17
SKW4685 - 7 2026-07-15
SKW5869 - 6 2026-07-07
SKW5643 - 6 2026-06-14
SKW5606 - 6 2026-07-17
SKW5573 SkyWest Airlines 6 2026-07-16
SKW4636 - 6 2026-07-15
SKW5890 - 5 2026-06-22
SKW5878 SkyWest Airlines 5 2026-06-16
SKW5746 - 5 2026-06-30
SKW5648 SkyWest Airlines 5 2026-07-21
SKW5598 - 5 2026-07-21
SKW5333 SkyWest Airlines 5 2026-06-13
SKW5310 SkyWest Airlines 5 2026-06-16
SKW5232 SkyWest Airlines 5 2026-05-20
SKW5221 SkyWest Airlines 5 2026-07-26
SKW4807 SkyWest Airlines 5 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4709 ORD → CMH Jul 26, 18:20 UTCJul 26, 18:50 UTC30m
2026-07-26 SKW4709 ORD → CMH Jul 26, 17:30 UTCJul 26, 18:45 UTC1h 15m
2026-07-26 SKW4704 DEN → GJT Jul 26, 15:50 UTCJul 26, 16:05 UTC15m
2026-07-26 SKW5221 AMA → DEN Jul 26, 13:24 UTCJul 26, 14:06 UTC42m
2026-07-25 SKW5221 AMA → DEN Jul 25, 20:40 UTCJul 26, 14:10 UTC17h 31m
2026-07-25 SKW5492 FSD → DEN Jul 25, 18:10 UTCJul 25, 19:20 UTC1h 10m
2026-07-25 SKW4759 MRY → SFO Jul 25, 16:10 UTCJul 25, 17:15 UTC1h 5m
2026-07-25 SKW5547 SFO → ABQ Jul 25, 01:20 UTCJul 25, 13:40 UTC12h 20m
2026-07-24 SKW5431 LNK → DEN Jul 24, 22:20 UTCJul 24, 23:25 UTC1h 5m
2026-07-24 SKW5827 PSP → SFO Jul 24, 20:00 UTCJul 24, 21:00 UTC1h 0m
2026-07-24 SKW4709 ORD → CMH Jul 24, 18:10 UTCJul 24, 18:30 UTC20m
2026-07-24 SKW4704 DEN → GJT Jul 24, 16:05 UTCJul 24, 16:25 UTC20m
2026-07-24 SKW4696 COS → DEN Jul 24, 13:20 UTCJul 24, 13:40 UTC20m
2026-07-24 SKW5669 MAF → IAH Jul 24, 04:35 UTCJul 24, 04:55 UTC20m
2026-07-24 SKW5431 LNK → DEN Jul 24, 01:05 UTCJul 24, 02:15 UTC1h 10m
2026-07-23 SKW5827 PSP → SFO Jul 23, 20:10 UTCJul 23, 21:10 UTC1h 0m
2026-07-23 SKW5462 FAR → DEN Jul 23, 17:20 UTCJul 23, 18:55 UTC1h 35m
2026-07-23 SKW5537 ORD → FAR Jul 23, 14:20 UTCJul 23, 15:45 UTC1h 25m
2026-07-23 SKW4646 CAK → ORD Jul 23, 11:15 UTCJul 23, 12:25 UTC1h 10m
2026-07-23 SKW5982 SBA → SFO Jul 23, 03:00 UTCJul 23, 03:50 UTC50m
2026-07-22 SKW5865 BNA → ORD Jul 22, 22:40 UTCJul 22, 23:20 UTC40m
2026-07-22 SKW5865 BNA → ORD Jul 22, 22:46 UTCJul 22, 23:04 UTC18m
2026-07-22 SKW5505 ORD → SBN Jul 22, 21:45 UTCJul 22, 22:05 UTC20m
2026-07-22 SKW5470 ORD → CHA Jul 22, 17:10 UTCJul 22, 18:25 UTC1h 15m
2026-07-22 SKW5407 ONT → SFO Jul 22, 15:05 UTCJul 22, 16:15 UTC1h 10m
2026-07-22 SKW5699 - Jul 22, 12:05 UTCJul 22, 13:45 UTC1h 40m
2026-07-22 SKW5610 PSP → SFO Jul 22, 01:00 UTCJul 22, 02:25 UTC1h 25m
2026-07-21 SKW4726 ORD → HPN Jul 21, 20:25 UTCJul 21, 21:00 UTC35m
2026-07-21 SKW5933 PWM → ORD Jul 21, 18:50 UTCJul 21, 19:05 UTC15m
2026-07-21 SKW5575 - Jul 21, 16:35 UTCJul 21, 17:15 UTC40m
2026-07-21 SKW5575 TVC → ORD Jul 21, 16:35 UTCJul 21, 17:10 UTC35m
2026-07-21 SKW5341 - Jul 21, 14:35 UTCJul 21, 15:15 UTC40m
2026-07-21 SKW5598 - Jul 21, 11:50 UTCJul 21, 12:15 UTC25m
2026-07-21 SKW5598 MLI → ORD Jul 21, 11:47 UTCJul 21, 12:14 UTC27m
2026-07-21 SKW5539 ORD → SLC Jul 21, 04:13 UTCJul 21, 04:19 UTC6m
2026-07-21 SKW5539 ORD → SLC Jul 21, 03:55 UTCJul 21, 04:10 UTC15m
2026-07-21 SKW5648 MKE → ORD Jul 21, 00:35 UTCJul 21, 01:05 UTC30m
2026-07-20 SKW5345 ORD → CAK Jul 20, 23:20 UTCJul 20, 23:45 UTC25m
2026-07-19 SKW5192 ORD → CRW Jul 19, 16:55 UTCJul 19, 18:30 UTC1h 35m
2026-07-18 SKW5368 - Jul 18, 21:40 UTCJul 18, 22:50 UTC1h 10m
2026-07-18 SKW4646 CAK → ORD Jul 18, 15:30 UTCJul 18, 16:25 UTC55m
2026-07-18 SKW5982 - Jul 18, 03:40 UTCJul 18, 04:30 UTC50m
2026-07-17 SKW5606 - Jul 17, 23:55 UTCJul 18, 01:34 UTC1h 40m
2026-07-17 SKW5565 SUN → SFO Jul 17, 21:05 UTCJul 17, 21:44 UTC40m
2026-07-17 SKW5565 SUN → SFO Jul 17, 20:29 UTCJul 17, 21:00 UTC30m
2026-07-17 SKW5977 - Jul 17, 16:34 UTCJul 17, 17:55 UTC1h 20m
2026-07-17 SKW5532 - Jul 17, 13:00 UTCJul 17, 14:15 UTC1h 15m
2026-07-17 SKW5532 ORD → CHO Jul 17, 12:44 UTCJul 17, 14:21 UTC1h 37m
2026-07-17 SKW5615 GRR → ORD Jul 17, 09:35 UTCJul 17, 10:10 UTC35m
2026-07-17 SKW5615 GRR → ORD Jul 17, 09:25 UTCJul 17, 10:05 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 N723EV page for operator, model, and routing details .

Mode-S A9AF29 frequently asked

What is Mode-S code A9AF29?
A9AF29 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N723EV.
Where is Mode-S A9AF29 registered?
Mode-S code A9AF29 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 A9AF29 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9AF29, octal 52327451, decimal 11,120,425.
What flights does A9AF29 operate?
Mode-S A9AF29 has broadcast 20 distinct callsigns, including SKW5723, SKW5977, SKW5565, SKW5532, SKW4685.