Apparatus

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sensors Mode-S transponder

A29AA5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N267SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A29AA5
Octal
50515245
Decimal
10,656,421
Country
US
Tail
N267SY
Type
E75L
No current signal · last broadcast Jul 26, 20:50 UTC
Flights observed
519
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S A29AA5.

Country allocation

The ICAO 24-bit address A29AA5 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
SKW3716 - 15 2026-07-16
SKW3507 SkyWest Airlines 13 2026-06-19
SKW3502 - 12 2026-07-18
SKW4117 SkyWest Airlines 11 2026-06-18
SKW3771 SkyWest Airlines 10 2026-07-26
SKW4448 SkyWest Airlines 9 2026-06-17
SKW4082 - 9 2026-06-14
SKW3804 SkyWest Airlines 9 2026-04-27
SKW3717 - 9 2026-07-14
SKW3579 SkyWest Airlines 9 2026-06-19
SKW4095 - 8 2026-06-18
SKW3935 - 8 2026-07-02
SKW3846 - 8 2026-07-17
SKW3744 SkyWest Airlines 8 2026-05-26
SKW3704 - 8 2026-06-24
SKW4473 SkyWest Airlines 7 2026-07-26
SKW4470 SkyWest Airlines 7 2026-07-25
SKW4111 SkyWest Airlines 7 2026-06-15
SKW4033 SkyWest Airlines 7 2026-05-22
SKW3723 - 7 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4473 LAX → PHX Jul 26, 20:30 UTCJul 26, 20:45 UTC15m
2026-07-26 SKW3771 MSP → FWA Jul 26, 18:25 UTCJul 26, 19:05 UTC40m
2026-07-26 SKW3771 MSP → FWA Jul 26, 16:15 UTCJul 26, 17:00 UTC45m
2026-07-26 SKW3807 OMA → DTW Jul 26, 13:45 UTCJul 26, 15:05 UTC1h 20m
2026-07-26 SKW4025 ORD → BOS Jul 26, 00:05 UTCJul 26, 00:25 UTC20m
2026-07-25 SKW3690 BZN → SLC Jul 25, 21:35 UTCJul 25, 22:10 UTC35m
2026-07-25 SKW3689 MSP → OMA Jul 25, 19:40 UTCJul 25, 20:10 UTC30m
2026-07-25 SKW3689 MSP → OMA Jul 25, 19:35 UTCJul 25, 20:16 UTC41m
2026-07-25 SKW4470 DTW → GSO Jul 25, 17:50 UTCJul 25, 18:15 UTC25m
2026-07-25 SKW4470 DTW → GSO Jul 25, 15:50 UTCJul 25, 16:10 UTC20m
2026-07-24 SKW3737 DTW → MDW Jul 24, 23:50 UTCJul 25, 01:20 UTC1h 30m
2026-07-24 SKW3737 DTW → MDW Jul 24, 23:39 UTCJul 25, 01:14 UTC1h 35m
2026-07-24 SKW3776 SJC → SEA Jul 24, 21:25 UTCJul 24, 22:45 UTC1h 20m
2026-07-24 SKW3700 EWR → MSP Jul 24, 16:40 UTCJul 24, 17:45 UTC1h 5m
2026-07-24 SKW3700 EWR → MSP Jul 24, 16:32 UTCJul 24, 17:42 UTC1h 10m
2026-07-24 SKW3700 EWR → MSP Jul 24, 14:20 UTCJul 24, 15:25 UTC1h 5m
2026-07-24 SKW3759 JFK → BNA Jul 24, 04:05 UTCJul 24, 05:10 UTC1h 5m
2026-07-24 SKW3759 JFK → BNA Jul 24, 01:50 UTCJul 24, 02:55 UTC1h 5m
2026-07-24 SKW3822 MSP → GRB Jul 24, 00:05 UTCJul 24, 01:00 UTC55m
2026-07-23 SKW3822 MSP → GRB Jul 23, 21:45 UTCJul 23, 22:35 UTC50m
2026-07-23 SKW3696 BWI → BOS Jul 23, 13:25 UTCJul 23, 15:45 UTC2h 20m
2026-07-23 SKW3576 LAX → GEG Jul 23, 04:30 UTCJul 23, 06:35 UTC2h 5m
2026-07-23 SKW3712 LAX → SMF Jul 23, 02:10 UTCJul 23, 03:15 UTC1h 5m
2026-07-22 SKW3712 LAX → SMF Jul 22, 23:55 UTCJul 23, 01:00 UTC1h 5m
2026-07-22 SKW3812 SLC → OAK Jul 22, 21:30 UTCJul 22, 22:40 UTC1h 10m
2026-07-22 SKW3812 SLC → OAK Jul 22, 21:30 UTCJul 22, 22:29 UTC59m
2026-07-22 SKW134F LAX → SMF Jul 22, 19:15 UTCJul 22, 20:15 UTC1h 0m
2026-07-22 SKW134F LAX → SMF Jul 22, 19:10 UTCJul 22, 20:14 UTC1h 4m
2026-07-22 SKW4451 SEA → SFO Jul 22, 17:05 UTCJul 22, 18:05 UTC1h 0m
2026-07-22 SKW4026 MSP → ATW Jul 22, 14:10 UTCJul 22, 15:40 UTC1h 30m
2026-07-22 SKW3808 SLC → MSO Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-22 SKW148E ATL → HPN Jul 22, 02:15 UTCJul 22, 03:30 UTC1h 15m
2026-07-22 SKW148E ATL → HPN Jul 22, 00:53 UTCJul 22, 01:59 UTC1h 6m
2026-07-21 SKW148E ATL → HPN Jul 21, 23:00 UTCJul 22, 03:30 UTC4h 30m
2026-07-21 SKW4134 OAK → SLC Jul 21, 20:25 UTCJul 21, 21:50 UTC1h 25m
2026-07-21 SKW4134 OAK → SLC Jul 21, 16:55 UTCJul 21, 18:25 UTC1h 30m
2026-07-21 SKW4152 MEM → LGA Jul 21, 14:10 UTCJul 21, 15:25 UTC1h 15m
2026-07-21 SKW3729 SLC → ABQ Jul 21, 03:35 UTCJul 21, 05:00 UTC1h 25m
2026-07-21 SKW3903 OAK → SLC Jul 21, 00:10 UTCJul 21, 02:00 UTC1h 50m
2026-07-20 SKW3903 SLC → OAK Jul 20, 21:35 UTCJul 20, 23:00 UTC1h 25m
2026-07-20 SKW3880 HLN → SLC Jul 20, 19:07 UTCJul 20, 20:05 UTC58m
2026-07-20 SKW3880 - Jul 20, 16:55 UTCJul 20, 17:25 UTC30m
2026-07-20 SKW101A - Jul 20, 12:00 UTCJul 20, 12:45 UTC45m
2026-07-20 SKW4279 ESC → MSP Jul 20, 02:50 UTCJul 20, 03:25 UTC35m
2026-07-19 SKW4475 GTF → SLC Jul 19, 23:55 UTCJul 20, 01:30 UTC1h 35m
2026-07-19 SKW4475 GTF → SLC Jul 19, 23:59 UTCJul 20, 01:15 UTC1h 16m
2026-07-19 SKW4475 GTF → SLC Jul 19, 21:15 UTCJul 19, 23:00 UTC1h 45m
2026-07-19 SKW4019 SLC → ABQ Jul 19, 19:25 UTCJul 19, 20:00 UTC35m
2026-07-19 SKW172E SLC → SUN Jul 19, 17:25 UTCJul 19, 17:50 UTC25m
2026-07-18 SKW3738 DTW → CMH Jul 18, 17:45 UTCJul 18, 19:10 UTC1h 25m

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 N267SY page for operator, model, and routing details .

Mode-S A29AA5 frequently asked

What is Mode-S code A29AA5?
A29AA5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N267SY.
Where is Mode-S A29AA5 registered?
Mode-S code A29AA5 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 A29AA5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A29AA5, octal 50515245, decimal 10,656,421.
What flights does A29AA5 operate?
Mode-S A29AA5 has broadcast 20 distinct callsigns, including SKW3716, SKW3507, SKW3502, SKW4117, SKW3771.