Apparatus

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sensors Mode-S transponder

AB703E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N836SK · BOMBARDIER Regional Jet CRJ-900 · operated by BANK OF UTAH TRUSTEE

Hex
AB703E
Octal
52670076
Decimal
11,235,390
Country
US
Tail
N836SK
Type
CRJ9
Broadcasting now · callsign SKW3961 · 3,050 ft
Flights observed
676
Distinct callsigns
20
Country
US
Last broadcast
19m ago

Current position

AB703E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB703E 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
SKW3869 - 19 2026-07-12
SKW4166 - 17 2026-07-05
SKW3500 SkyWest Airlines 16 2026-05-20
SKW3889 - 15 2026-07-07
SKW3651 - 14 2026-07-10
SKW3879 - 13 2026-06-23
SKW3639 - 13 2026-07-12
SKW4021 - 12 2026-07-05
SKW3898 SkyWest Airlines 12 2026-06-22
SKW3981 SkyWest Airlines 11 2026-06-04
SKW3581 - 11 2026-07-11
SKW4110 - 10 2026-06-22
SKW3949 - 10 2026-06-25
SKW3720 SkyWest Airlines 10 2026-06-05
SKW3685 - 10 2026-07-11
SKW4440 - 9 2026-06-27
SKW4059 - 9 2026-07-04
SKW3858 - 9 2026-06-25
SKW3598 SkyWest Airlines 9 2026-07-03
SKW4176 - 8 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3961 - Jul 14, 14:25 UTCJul 14, 15:30 UTC1h 5m
2026-07-14 SKW4176 - Jul 14, 12:15 UTCJul 14, 13:05 UTC50m
2026-07-14 SKW4176 ATW → DTW Jul 14, 12:25 UTCJul 14, 13:07 UTC42m
2026-07-14 SKW4159 - Jul 14, 01:40 UTCJul 14, 02:25 UTC45m
2026-07-13 SKW3785 - Jul 13, 21:15 UTCJul 13, 22:25 UTC1h 10m
2026-07-13 SKW3785 - Jul 13, 19:00 UTCJul 13, 20:10 UTC1h 10m
2026-07-13 SKW3673 - Jul 13, 16:45 UTCJul 13, 17:30 UTC45m
2026-07-13 SKW3673 - Jul 13, 14:35 UTCJul 13, 15:20 UTC45m
2026-07-13 SKW3837 - Jul 13, 12:25 UTCJul 13, 13:00 UTC35m
2026-07-13 SKW3900 - Jul 13, 00:15 UTCJul 13, 00:40 UTC25m
2026-07-12 SKW3919 - Jul 12, 22:30 UTCJul 12, 22:55 UTC25m
2026-07-12 SKW3919 - Jul 12, 20:50 UTCJul 12, 21:15 UTC25m
2026-07-12 SKW3869 - Jul 12, 18:25 UTCJul 12, 19:15 UTC50m
2026-07-12 SKW3869 - Jul 12, 15:05 UTCJul 12, 15:50 UTC45m
2026-07-12 SKW3639 - Jul 12, 13:05 UTCJul 12, 13:50 UTC45m
2026-07-12 SKW3639 - Jul 12, 11:25 UTCJul 12, 12:05 UTC40m
2026-07-11 SKW3581 - Jul 11, 20:05 UTCJul 11, 20:25 UTC20m
2026-07-11 SKW3581 CLE → DTW Jul 11, 20:07 UTCJul 11, 20:25 UTC18m
2026-07-11 SKW3581 - Jul 11, 18:35 UTCJul 11, 18:55 UTC20m
2026-07-11 SKW3685 - Jul 11, 15:25 UTCJul 11, 16:55 UTC1h 30m
2026-07-11 SKW3685 - Jul 11, 12:40 UTCJul 11, 14:10 UTC1h 30m
2026-07-11 SKW3962 - Jul 11, 11:00 UTCJul 11, 11:30 UTC30m
2026-07-11 SKW3962 MBS → DTW Jul 11, 11:07 UTCJul 11, 11:28 UTC21m
2026-07-11 SKW4173 - Jul 11, 03:01 UTCJul 11, 03:25 UTC25m
2026-07-10 SKW3651 SAV → DTW Jul 10, 23:10 UTCJul 11, 01:10 UTC2h 0m
2026-07-10 SKW3651 - Jul 10, 19:35 UTCJul 10, 21:45 UTC2h 10m
2026-07-10 SKW3869 - Jul 10, 17:15 UTCJul 10, 18:10 UTC55m
2026-07-10 SKW3869 - Jul 10, 15:15 UTCJul 10, 15:55 UTC40m
2026-07-10 SKW3639 - Jul 10, 13:20 UTCJul 10, 14:05 UTC45m
2026-07-10 SKW3639 - Jul 10, 11:35 UTCJul 10, 12:20 UTC45m
2026-07-10 SKW4060 - Jul 10, 09:35 UTCJul 10, 09:55 UTC20m
2026-07-10 SKW3684 - Jul 10, 03:30 UTCJul 10, 03:45 UTC15m
2026-07-10 SKW3637 - Jul 10, 01:10 UTCJul 10, 02:00 UTC50m
2026-07-09 SKW3637 - Jul 9, 23:45 UTCJul 10, 00:30 UTC45m
2026-07-09 SKW4335 - Jul 9, 22:05 UTCJul 9, 22:35 UTC30m
2026-07-09 SKW4335 PLN → DTW Jul 9, 21:54 UTCJul 9, 22:34 UTC40m
2026-07-09 SKW4335 - Jul 9, 20:25 UTCJul 9, 20:55 UTC30m
2026-07-09 SKW4176 ATW → DTW Jul 9, 12:15 UTCJul 9, 13:05 UTC50m
2026-07-09 SKW4159 - Jul 9, 01:50 UTCJul 9, 02:40 UTC50m
2026-07-08 SKW3651 - Jul 8, 22:30 UTCJul 9, 00:05 UTC1h 35m
2026-07-08 SKW3651 SAV → DTW Jul 8, 22:27 UTCJul 9, 00:04 UTC1h 37m
2026-07-08 SKW3651 - Jul 8, 19:25 UTCJul 8, 21:05 UTC1h 40m
2026-07-08 SKW3869 - Jul 8, 17:15 UTCJul 8, 18:00 UTC45m
2026-07-08 SKW3869 - Jul 8, 15:00 UTCJul 8, 15:50 UTC50m
2026-07-08 SKW3639 FWA → MSP Jul 8, 13:20 UTCJul 8, 14:00 UTC40m
2026-07-08 SKW3639 FWA → MSP Jul 8, 11:30 UTCJul 8, 12:15 UTC45m
2026-07-07 SKW4034 - Jul 7, 22:25 UTCJul 7, 23:00 UTC35m
2026-07-07 SKW4034 - Jul 7, 19:00 UTCJul 7, 19:30 UTC30m
2026-07-07 SKW3986 - Jul 7, 17:20 UTCJul 7, 17:45 UTC25m
2026-07-07 SKW3986 - Jul 7, 15:45 UTCJul 7, 16:10 UTC25m

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 N836SK page for operator, model, and routing details .

Mode-S AB703E frequently asked

What is Mode-S code AB703E?
AB703E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N836SK.
Where is Mode-S AB703E registered?
Mode-S code AB703E 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 AB703E broadcasting right now?
Yes. Mode-S AB703E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB703E, octal 52670076, decimal 11,235,390.
What flights does AB703E operate?
Mode-S AB703E has broadcast 20 distinct callsigns, including SKW3869, SKW4166, SKW3500, SKW3889, SKW3651.