Apparatus

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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 Jul 26, 21:05 UTC
Flights observed
796
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:05 UTC

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
SKW3879 - 18 2026-07-17
SKW3581 - 17 2026-07-13
SKW3941 SkyWest Airlines 16 2026-07-26
SKW3752 - 16 2026-07-02
SKW3675 - 16 2026-07-16
SKW4059 - 15 2026-07-13
SKW3878 SkyWest Airlines 14 2026-05-17
SKW3858 - 14 2026-06-24
SKW3685 - 14 2026-07-06
SKW3598 - 14 2026-07-08
SKW3889 - 12 2026-07-02
SKW3697 - 12 2026-07-17
SKW4173 - 11 2026-07-06
SKW3980 - 11 2026-07-16
SKW3909 - 11 2026-07-16
SKW3849 SkyWest Airlines 11 2026-06-03
SKW3821 SkyWest Airlines 11 2026-07-02
SKW3962 - 10 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3941 SMF → LAS Jul 26, 20:45 UTCJul 26, 21:05 UTC20m
2026-07-26 SKW3941 SMF → LAS Jul 26, 19:20 UTCJul 26, 19:50 UTC30m
2026-07-26 SKW3757 SLC → ONT Jul 26, 17:35 UTCJul 26, 17:45 UTC10m
2026-07-26 SKW3757 SLC → ONT Jul 26, 17:30 UTCJul 26, 18:09 UTC39m
2026-07-26 SKW4607 MSP → MSN Jul 26, 15:45 UTCJul 26, 16:40 UTC55m
2026-07-26 SKW4607 MSP → MSN Jul 26, 15:35 UTCJul 26, 16:40 UTC1h 5m
2026-07-26 SKW3864 BUR → SLC Jul 26, 11:15 UTCJul 26, 12:05 UTC50m
2026-07-26 SKW3864 BUR → SLC Jul 26, 11:14 UTCJul 26, 12:03 UTC49m
2026-07-25 SKW3838 OMA → MSP Jul 25, 17:00 UTCJul 25, 17:40 UTC40m
2026-07-25 SKW3542 SEA → SFO Jul 25, 12:35 UTCJul 25, 13:55 UTC1h 20m
2026-07-25 SKW3541 BNA → JFK Jul 25, 01:25 UTCJul 25, 02:35 UTC1h 10m
2026-07-24 SKW3595 ATL → CHA Jul 24, 21:10 UTCJul 24, 22:35 UTC1h 25m
2026-07-24 SKW3595 ATL → CHA Jul 24, 18:55 UTCJul 24, 20:10 UTC1h 15m
2026-07-24 SKW3831 MSP → OMA Jul 24, 16:05 UTCJul 24, 17:00 UTC55m
2026-07-24 SKW3831 MSP → OMA Jul 24, 14:05 UTCJul 24, 14:50 UTC45m
2026-07-24 SKW3835 FAR → MSP Jul 24, 11:20 UTCJul 24, 12:30 UTC1h 10m
2026-07-24 SKW3886 LGA → MKE Jul 24, 01:25 UTCJul 24, 02:25 UTC1h 0m
2026-07-23 SKW3538 ATL → LEX Jul 23, 21:50 UTCJul 23, 22:30 UTC40m
2026-07-23 SKW3538 ATL → LEX Jul 23, 19:55 UTCJul 23, 20:35 UTC40m
2026-07-23 SKW3920 MDW → MSP Jul 23, 17:10 UTCJul 23, 18:00 UTC50m
2026-07-23 SKW129W MSP → GRB Jul 23, 15:20 UTCJul 23, 16:05 UTC45m
2026-07-23 SKW3927 BTV → DTW Jul 23, 13:05 UTCJul 23, 14:05 UTC1h 0m
2026-07-23 SKW3714 SLC → LGB Jul 23, 03:14 UTCJul 23, 04:16 UTC1h 2m
2026-07-23 SKW3714 SLC → LGB Jul 23, 03:05 UTCJul 23, 04:10 UTC1h 5m
2026-07-22 SKW3783 MSP → FWA Jul 22, 23:20 UTCJul 23, 01:45 UTC2h 25m
2026-07-22 SKW3783 MSP → FWA Jul 22, 19:40 UTCJul 22, 21:25 UTC1h 45m
2026-07-22 SKW3920 MDW → MSP Jul 22, 17:15 UTCJul 22, 18:00 UTC45m
2026-07-22 SKW129W MSP → GRB Jul 22, 15:15 UTCJul 22, 16:00 UTC45m
2026-07-22 SKW3927 BTV → DTW Jul 22, 13:10 UTCJul 22, 14:10 UTC1h 0m
2026-07-22 SKW3714 SLC → LGB Jul 22, 03:10 UTCJul 22, 04:15 UTC1h 5m
2026-07-21 SKW3920 MDW → MSP Jul 21, 17:15 UTCJul 21, 18:00 UTC45m
2026-07-21 SKW129W MSP → GRB Jul 21, 15:25 UTCJul 21, 16:05 UTC40m
2026-07-21 SKW4136 - Jul 21, 13:15 UTCJul 21, 14:10 UTC55m
2026-07-20 SKW4143 DTW → BUF Jul 20, 23:40 UTCJul 21, 00:50 UTC1h 10m
2026-07-20 SKW3595 ATL → CHA Jul 20, 21:15 UTCJul 20, 22:50 UTC1h 35m
2026-07-20 SKW3595 ATL → CHA Jul 20, 18:45 UTCJul 20, 20:05 UTC1h 20m
2026-07-20 SKW3831 - Jul 20, 16:35 UTCJul 20, 17:25 UTC50m
2026-07-20 SKW3831 - Jul 20, 15:00 UTCJul 20, 15:45 UTC45m
2026-07-20 SKW3835 FAR → MSP Jul 20, 11:20 UTCJul 20, 13:00 UTC1h 40m
2026-07-20 SKW3900 - Jul 20, 01:45 UTCJul 20, 02:20 UTC35m
2026-07-19 SKW4007 PIT → JFK Jul 19, 22:55 UTCJul 20, 00:30 UTC1h 35m
2026-07-19 SKW4007 PIT → JFK Jul 19, 20:25 UTCJul 19, 21:45 UTC1h 20m
2026-07-19 SKW3961 - Jul 19, 16:55 UTCJul 19, 18:35 UTC1h 40m
2026-07-19 SKW3961 - Jul 19, 14:25 UTCJul 19, 15:45 UTC1h 20m
2026-07-19 SKW4176 MSP → MOT Jul 19, 12:15 UTCJul 19, 13:05 UTC50m
2026-07-19 SKW4159 - Jul 19, 01:20 UTCJul 19, 02:15 UTC55m
2026-07-19 SKW4159 DTW → ATW Jul 19, 01:24 UTCJul 19, 02:08 UTC44m
2026-07-18 SKW4096 SMF → SEA Jul 18, 21:50 UTCJul 18, 23:10 UTC1h 20m
2026-07-18 SKW4096 SMF → SEA Jul 18, 21:50 UTCJul 18, 23:10 UTC1h 20m
2026-07-18 SKW4096 SMF → SEA Jul 18, 18:45 UTCJul 18, 20:45 UTC2h 0m

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 Jul 26, 21:05 UTC.
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, SKW3879, SKW3581, SKW3941.