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sensors Mode-S transponder

AB48BF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N826SK · BOMBARDIER Regional Jet CRJ-900 · operated by BANK OF UTAH TRUSTEE

Hex
AB48BF
Octal
52644277
Decimal
11,225,279
Country
US
Tail
N826SK
Type
CRJ9
No current signal · last broadcast 2h ago
Flights observed
718
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AB48BF.

Country allocation

The ICAO 24-bit address AB48BF 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
SKW4166 - 26 2026-07-14
SKW4021 - 21 2026-06-28
SKW3581 - 17 2026-07-13
SKW3879 - 16 2026-07-14
SKW3752 - 16 2026-07-02
SKW4059 - 15 2026-07-13
SKW3941 - 14 2026-07-05
SKW3878 SkyWest Airlines 14 2026-05-17
SKW3858 - 14 2026-06-24
SKW3685 - 14 2026-07-06
SKW3675 - 14 2026-07-08
SKW3598 - 14 2026-07-08
SKW3889 - 12 2026-07-02
SKW4173 - 11 2026-07-06
SKW3849 SkyWest Airlines 11 2026-06-03
SKW3821 SkyWest Airlines 11 2026-07-02
SKW3980 - 10 2026-07-09
SKW3962 - 10 2026-07-06
SKW3949 - 10 2026-06-27
SKW3898 SkyWest Airlines 10 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3919 - Jul 14, 20:45 UTCJul 14, 21:05 UTC20m
2026-07-14 SKW3879 - Jul 14, 18:55 UTCJul 14, 19:35 UTC40m
2026-07-14 SKW3879 - Jul 14, 16:30 UTCJul 14, 17:10 UTC40m
2026-07-14 SKW3697 - Jul 14, 13:45 UTCJul 14, 14:55 UTC1h 10m
2026-07-14 SKW3697 - Jul 14, 11:35 UTCJul 14, 12:45 UTC1h 10m
2026-07-14 SKW4166 - Jul 14, 00:55 UTCJul 14, 01:40 UTC45m
2026-07-13 SKW4166 - Jul 13, 23:05 UTCJul 13, 23:55 UTC50m
2026-07-13 SKW3581 - Jul 13, 20:25 UTCJul 13, 20:50 UTC25m
2026-07-13 SKW3581 CLE → DTW Jul 13, 20:15 UTCJul 13, 20:48 UTC33m
2026-07-13 SKW3581 - Jul 13, 18:40 UTCJul 13, 19:05 UTC25m
2026-07-13 SKW4059 - Jul 13, 16:30 UTCJul 13, 17:15 UTC45m
2026-07-13 SKW4059 - Jul 13, 14:40 UTCJul 13, 15:25 UTC45m
2026-07-13 SKW4110 - Jul 13, 11:40 UTCJul 13, 13:15 UTC1h 35m
2026-07-13 SKW4110 OMA → DTW Jul 13, 11:35 UTCJul 13, 13:07 UTC1h 32m
2026-07-12 SKW4024 - Jul 12, 23:55 UTCJul 13, 00:40 UTC45m
2026-07-12 SKW4066 - Jul 12, 20:45 UTCJul 12, 21:30 UTC45m
2026-07-12 SKW4607 - Jul 12, 15:20 UTCJul 12, 18:05 UTC2h 45m
2026-07-09 SKW4608 - Jul 9, 16:10 UTCJul 9, 19:50 UTC3h 40m
2026-07-09 SKW3697 - Jul 9, 13:35 UTCJul 9, 14:45 UTC1h 10m
2026-07-09 SKW3697 ALB → DTW Jul 9, 13:43 UTCJul 9, 14:44 UTC1h 1m
2026-07-09 SKW3697 - Jul 9, 11:30 UTCJul 9, 12:35 UTC1h 5m
2026-07-09 SKW3980 - Jul 9, 09:40 UTCJul 9, 10:05 UTC25m
2026-07-09 SKW3909 - Jul 9, 04:30 UTCJul 9, 04:55 UTC25m
2026-07-08 SKW3598 - Jul 8, 23:50 UTCJul 9, 00:25 UTC35m
2026-07-08 SKW3598 PIT → DTW Jul 8, 23:55 UTCJul 9, 00:25 UTC30m
2026-07-08 SKW3598 - Jul 8, 22:00 UTCJul 8, 22:40 UTC40m
2026-07-08 SKW3762 - Jul 8, 19:15 UTCJul 8, 20:40 UTC1h 25m
2026-07-08 SKW3762 - Jul 8, 16:35 UTCJul 8, 18:05 UTC1h 30m
2026-07-08 SKW3697 - Jul 8, 13:40 UTCJul 8, 14:50 UTC1h 10m
2026-07-08 SKW3697 - Jul 8, 11:35 UTCJul 8, 12:40 UTC1h 5m
2026-07-08 SKW4060 - Jul 8, 09:30 UTCJul 8, 09:45 UTC15m
2026-07-08 SKW3684 - Jul 8, 03:30 UTCJul 8, 03:40 UTC10m
2026-07-08 SKW3675 - Jul 8, 00:40 UTCJul 8, 01:20 UTC40m
2026-07-07 SKW3675 - Jul 7, 23:05 UTCJul 7, 23:50 UTC45m
2026-07-07 SKW3581 - Jul 7, 19:55 UTCJul 7, 20:15 UTC20m
2026-07-07 SKW3581 - Jul 7, 18:25 UTCJul 7, 18:50 UTC25m
2026-07-07 SKW4059 - Jul 7, 16:05 UTCJul 7, 16:50 UTC45m
2026-07-07 SKW4059 - Jul 7, 14:20 UTCJul 7, 15:05 UTC45m
2026-07-07 SKW3817 - Jul 7, 12:30 UTCJul 7, 12:55 UTC25m
2026-07-07 SKW3646 RDM → SEA Jul 7, 03:20 UTCJul 7, 03:45 UTC25m
2026-07-07 SKW3675 - Jul 7, 01:05 UTCJul 7, 01:45 UTC40m
2026-07-07 SKW3675 MKE → DTW Jul 7, 01:08 UTCJul 7, 01:42 UTC34m
2026-07-06 SKW3675 - Jul 6, 23:35 UTCJul 7, 00:20 UTC45m
2026-07-06 SKW3762 - Jul 6, 20:55 UTCJul 6, 22:25 UTC1h 30m
2026-07-06 SKW3762 - Jul 6, 18:25 UTCJul 6, 19:55 UTC1h 30m
2026-07-06 SKW3685 - Jul 6, 15:50 UTCJul 6, 17:15 UTC1h 25m
2026-07-06 SKW3685 - Jul 6, 13:00 UTCJul 6, 14:30 UTC1h 30m
2026-07-06 SKW3962 - Jul 6, 10:55 UTCJul 6, 11:25 UTC30m
2026-07-06 SKW4173 - Jul 6, 02:40 UTCJul 6, 03:05 UTC25m
2026-07-05 SKW3782 SMF → LAX Jul 5, 23:30 UTCJul 6, 00:05 UTC35m

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 N826SK page for operator, model, and routing details .

Mode-S AB48BF frequently asked

What is Mode-S code AB48BF?
AB48BF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N826SK.
Where is Mode-S AB48BF registered?
Mode-S code AB48BF 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 AB48BF broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB48BF, octal 52644277, decimal 11,225,279.
What flights does AB48BF operate?
Mode-S AB48BF has broadcast 20 distinct callsigns, including SKW4166, SKW4021, SKW3581, SKW3879, SKW3752.