sensors Mode-S transponder

AB891A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N842US · MCDONNELL-DOUGLAS MD-88 · operated by USA JET AIRLINES INC

Hex
AB891A
Octal
52704432
Decimal
11,241,754
Country
US
Tail
N842US
Type
MD88
Broadcasting now · callsign JUS356 · 36,000 ft
Flights observed
62
Distinct callsigns
19
Country
US
Last broadcast
15h ago

Current position

AB891A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB891A 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 19 distinct

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 JUS272 YIP → ELP Jun 2, 08:00 UTCJun 2, 08:45 UTC45m
2026-06-02 JUS272 YIP → ELP Jun 2, 04:35 UTCJun 2, 06:50 UTC2h 15m
2026-06-01 JUS272 YIP → ELP Jun 1, 23:15 UTCJun 2, 02:20 UTC3h 5m
2026-05-30 JUS743 YIP → PAE May 30, 10:05 UTCMay 30, 10:35 UTC30m
2026-05-30 JUS743 YIP → PAE May 30, 06:20 UTCMay 30, 09:15 UTC2h 55m
2026-05-30 JUS743 YIP → PAE May 30, 02:15 UTCMay 30, 05:15 UTC3h 0m
2026-05-28 JUS458 GSP → AFW May 28, 04:30 UTCMay 28, 05:00 UTC30m
2026-05-28 JUS458 GSP → AFW May 28, 00:55 UTCMay 28, 03:40 UTC2h 45m
2026-05-27 JUS458 GSP → AFW May 27, 20:20 UTCMay 27, 23:35 UTC3h 15m
2026-05-23 JUS705 LRD → YIP May 23, 21:30 UTCMay 23, 22:50 UTC1h 20m
2026-05-23 JUS705 LRD → YIP May 23, 18:10 UTCMay 23, 19:35 UTC1h 25m
2026-05-21 JUS441 LRD → YIP May 21, 07:05 UTCMay 21, 09:35 UTC2h 30m
2026-05-21 JUS441 LRD → YIP May 21, 00:55 UTCMay 21, 04:05 UTC3h 10m
2026-05-20 JUS370 SDF → LRD May 20, 05:50 UTCMay 20, 06:15 UTC25m
2026-05-20 JUS370 SDF → LRD May 20, 03:50 UTCMay 20, 05:00 UTC1h 11m
2026-05-20 JUS370 SDF → LRD May 20, 00:50 UTCMay 20, 02:00 UTC1h 10m
2026-05-14 JUS434 LRD → YIP May 14, 05:20 UTCMay 14, 06:15 UTC55m
2026-05-14 JUS434 LRD → YIP May 14, 01:55 UTCMay 14, 04:20 UTC2h 25m
2026-05-13 JUS434 LRD → YIP May 13, 18:45 UTCMay 14, 00:50 UTC6h 5m
2026-05-12 JUS301 GDL → YIP May 12, 20:05 UTCMay 12, 22:20 UTC2h 15m
2026-05-12 JUS301 GDL → YIP May 12, 18:15 UTCMay 12, 18:30 UTC15m
2026-05-12 JUS258 YIP → LRD May 12, 08:35 UTCMay 12, 09:05 UTC30m
2026-05-12 JUS258 YIP → LRD May 12, 04:50 UTCMay 12, 07:40 UTC2h 50m
2026-05-12 JUS258 YIP → LRD May 12, 03:15 UTCMay 12, 03:50 UTC35m
2026-05-10 JUS118 LRD → YIP May 10, 23:39 UTCMay 11, 03:25 UTC3h 45m
2026-05-09 JUS658 SLW → YIP May 9, 08:55 UTCMay 9, 10:20 UTC1h 25m
2026-05-09 JUS658 SLW → YIP May 9, 05:30 UTCMay 9, 07:20 UTC1h 50m
2026-05-09 JUS658 SLW → YIP May 9, 00:55 UTCMay 9, 04:10 UTC3h 15m
2026-05-07 JUS5221 SDF → LRD May 7, 11:25 UTCMay 7, 13:40 UTC2h 15m
2026-05-07 JUS5221 SDF → LRD May 7, 05:05 UTCMay 7, 08:30 UTC3h 25m
2026-05-06 JUS332 YIP → LRD May 6, 04:05 UTCMay 6, 06:35 UTC2h 30m
2026-05-05 JUS332 YIP → LRD May 5, 19:45 UTCMay 6, 02:45 UTC7h 0m
2026-05-05 JUS356 MCI → YIP May 5, 10:30 UTCMay 5, 11:45 UTC1h 15m
2026-05-05 JUS356 MCI → YIP May 5, 04:40 UTCMay 5, 08:00 UTC3h 20m
2026-05-05 JUS356 MCI → YIP May 5, 00:35 UTCMay 5, 02:35 UTC2h 0m
2026-05-04 JUS118 LRD → YIP May 4, 03:30 UTCMay 4, 06:40 UTC3h 10m
2026-05-03 JUS118 LRD → YIP May 3, 23:45 UTCMay 4, 02:39 UTC2h 55m
2026-05-03 JUS118 LRD → YIP May 3, 17:45 UTCMay 3, 22:30 UTC4h 45m
2026-05-02 JUS705 LRD → YIP May 2, 16:55 UTCMay 2, 20:10 UTC3h 15m
2026-04-30 JUS525 BMI → YIP Apr 30, 12:20 UTCApr 30, 13:35 UTC1h 15m
2026-04-30 JUS525 BMI → YIP Apr 30, 09:00 UTCApr 30, 10:55 UTC1h 55m
2026-04-30 JUS525 BMI → YIP Apr 30, 02:00 UTCApr 30, 05:15 UTC3h 15m
2026-04-29 JUS332 YIP → LRD Apr 29, 01:50 UTCApr 29, 02:15 UTC25m
2026-04-28 JUS332 YIP → LRD Apr 28, 23:00 UTCApr 29, 01:10 UTC2h 10m
2026-04-28 JUS332 YIP → LRD Apr 28, 17:40 UTCApr 28, 20:45 UTC3h 5m
2026-04-28 JUS227 SLW → TUS Apr 28, 05:55 UTCApr 28, 06:35 UTC40m
2026-04-28 JUS227 SLW → TUS Apr 28, 01:45 UTCApr 28, 04:20 UTC2h 35m
2026-04-27 JUS227 SLW → TUS Apr 27, 18:35 UTCApr 27, 19:45 UTC1h 10m
2026-04-24 JUS610 LRD → YIP Apr 24, 06:00 UTCApr 24, 07:55 UTC1h 55m
2026-04-24 JUS610 LRD → YIP Apr 24, 02:35 UTCApr 24, 04:30 UTC1h 55m

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 N842US page for operator, model, and routing details .

Mode-S AB891A frequently asked

What is Mode-S code AB891A?
AB891A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N842US.
Where is Mode-S AB891A registered?
Mode-S code AB891A 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 AB891A broadcasting right now?
Yes. Mode-S AB891A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB891A, octal 52704432, decimal 11,241,754.
What flights does AB891A operate?
Mode-S AB891A has broadcast 19 distinct callsigns, including JUS332, JUS325, JUS118, JUS441, JUS743.