Apparatus

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sensors Mode-S transponder

ABB5E6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N85373 · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
ABB5E6
Octal
52732746
Decimal
11,253,222
Country
US
Tail
N85373
Type
E75L
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
556
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S ABB5E6.

Country allocation

The ICAO 24-bit address ABB5E6 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
SKW5527 SkyWest Airlines 9 2026-06-12
SKW5486 SkyWest Airlines 9 2026-06-13
SKW5450 - 7 2026-07-16
SKW5647 - 6 2026-07-20
SKW5570 - 6 2026-07-14
SKW5552 - 6 2026-07-15
SKW717C SkyWest Airlines 5 2026-06-13
SKW5863 SkyWest Airlines 5 2026-06-12
SKW5862 SkyWest Airlines 5 2026-07-19
SKW5542 SkyWest Airlines 5 2026-06-14
SKW5529 SkyWest Airlines 5 2026-04-29
SKW5520 SkyWest Airlines 5 2026-04-29
SKW5386 - 5 2026-07-08
SKW5299 - 5 2026-07-12
SKW5268 - 5 2026-06-13
SKW4803 - 5 2026-07-14
SKW4785 - 5 2026-07-14
SKW4730 SkyWest Airlines 5 2026-05-27
SKW5658 SkyWest Airlines 4 2026-06-02
SKW5612 - 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5393 HSV → DEN Jul 26, 20:55 UTCJul 26, 21:30 UTC35m
2026-07-26 SKW5514 BNA → DEN Jul 26, 16:45 UTCJul 26, 18:55 UTC2h 10m
2026-07-26 SKW4705 DEN → HLN Jul 26, 01:40 UTCJul 26, 13:50 UTC12h 11m
2026-07-26 SKW5947 ASE → LAX Jul 26, 00:00 UTCJul 26, 00:40 UTC40m
2026-07-25 SKW5947 ASE → LAX Jul 25, 23:14 UTCJul 26, 00:32 UTC1h 18m
2026-07-25 SKW5891 FAR → ORD Jul 25, 20:50 UTCJul 25, 21:25 UTC35m
2026-07-25 SKW5834 ABQ → DEN Jul 25, 16:50 UTCJul 25, 17:50 UTC1h 0m
2026-07-25 SKW5834 ABQ → DEN Jul 25, 16:58 UTCJul 25, 17:49 UTC51m
2026-07-25 SKW5487 ORD → MEM Jul 25, 14:20 UTCJul 25, 15:15 UTC55m
2026-07-25 SKW4777 ORD → BNA Jul 25, 11:45 UTCJul 25, 13:15 UTC1h 30m
2026-07-25 SKW4777 ORD → BNA Jul 25, 11:35 UTCJul 25, 13:06 UTC1h 31m
2026-07-25 SKW5389 SAN → SFO Jul 25, 03:15 UTCJul 25, 04:35 UTC1h 20m
2026-07-25 SKW5316 SFO → SAT Jul 25, 00:20 UTCJul 25, 01:35 UTC1h 15m
2026-07-24 SKW5251 MSN → ORD Jul 24, 21:55 UTCJul 24, 23:00 UTC1h 5m
2026-07-24 SKW5812 SFO → BUR Jul 24, 18:45 UTCJul 24, 20:15 UTC1h 30m
2026-07-24 SKW5812 SFO → BUR Jul 24, 18:42 UTCJul 24, 20:05 UTC1h 23m
2026-07-24 SKW5267 DEN → XNA Jul 24, 16:10 UTCJul 24, 17:30 UTC1h 20m
2026-07-24 SKW4706 IDA → DEN Jul 24, 13:30 UTCJul 24, 14:30 UTC1h 0m
2026-07-24 SKW519M DEN → IDA Jul 24, 02:50 UTCJul 24, 03:50 UTC1h 0m
2026-07-24 SKW519M DEN → IDA Jul 24, 02:38 UTCJul 24, 03:55 UTC1h 17m
2026-07-24 SKW5630 ORD → FAR Jul 24, 00:30 UTCJul 24, 01:40 UTC1h 10m
2026-07-24 SKW5630 ORD → FAR Jul 24, 00:36 UTCJul 24, 01:35 UTC59m
2026-07-23 SKW5454 DEN → ICT Jul 23, 20:15 UTCJul 23, 21:15 UTC1h 0m
2026-07-23 SKW6041 - Jul 23, 16:30 UTCJul 23, 18:00 UTC1h 30m
2026-07-23 SKW6090 BNA → SBN Jul 23, 01:45 UTCJul 23, 05:40 UTC3h 55m
2026-07-22 SKW5514 BNA → DEN Jul 22, 16:35 UTCJul 22, 18:40 UTC2h 5m
2026-07-22 SKW5602 - Jul 22, 13:40 UTCJul 22, 14:10 UTC30m
2026-07-22 SKW776V DEN → GUC Jul 22, 02:05 UTCJul 22, 02:30 UTC25m
2026-07-21 SKW5630 ORD → FAR Jul 21, 22:30 UTCJul 21, 23:35 UTC1h 5m
2026-07-21 SKW5454 - Jul 21, 20:10 UTCJul 21, 21:10 UTC1h 0m
2026-07-21 SKW6041 - Jul 21, 16:30 UTCJul 21, 18:10 UTC1h 40m
2026-07-21 SKW5363 SYR → ORD Jul 21, 02:10 UTCJul 21, 03:40 UTC1h 30m
2026-07-20 SKW5489 - Jul 20, 21:50 UTCJul 21, 00:45 UTC2h 54m
2026-07-20 SKW5426 - Jul 20, 17:50 UTCJul 20, 20:50 UTC3h 0m
2026-07-20 SKW4741 - Jul 20, 13:35 UTCJul 20, 16:15 UTC2h 40m
2026-07-20 SKW5370 ORD → CVG Jul 20, 03:40 UTCJul 20, 05:15 UTC1h 35m
2026-07-20 SKW5647 SBA → LAX Jul 20, 01:30 UTCJul 20, 02:00 UTC30m
2026-07-20 SKW5647 SBA → LAX Jul 20, 01:29 UTCJul 20, 01:52 UTC23m
2026-07-19 SKW5862 FAR → DEN Jul 19, 23:40 UTCJul 20, 00:30 UTC50m
2026-07-19 SKW5452 RDD → SFO Jul 19, 21:30 UTCJul 19, 22:20 UTC50m
2026-07-19 SKW4701 DEN → MOT Jul 19, 18:00 UTCJul 19, 20:05 UTC2h 5m
2026-07-19 SKW5295 - Jul 19, 13:20 UTCJul 19, 15:40 UTC2h 20m
2026-07-19 SKW5815 DEN → BHM Jul 19, 00:20 UTCJul 19, 02:50 UTC2h 30m
2026-07-18 SKW4702 BFL → DEN Jul 18, 19:55 UTCJul 18, 22:00 UTC2h 5m
2026-07-18 SKW4671 - Jul 18, 17:40 UTCJul 18, 18:30 UTC50m
2026-07-18 SKW5803 - Jul 18, 14:20 UTCJul 18, 16:35 UTC2h 15m
2026-07-18 SKW5803 FCA → SFO Jul 18, 14:15 UTCJul 18, 16:30 UTC2h 15m
2026-07-18 SKW5597 DEN → ASE Jul 18, 00:10 UTCJul 18, 01:39 UTC1h 30m
2026-07-18 SKW5597 DEN → ASE Jul 18, 00:15 UTCJul 18, 01:47 UTC1h 32m
2026-07-17 SKW5217 - Jul 17, 22:55 UTCJul 17, 23:00 UTC5m

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 N85373 page for operator, model, and routing details .

Mode-S ABB5E6 frequently asked

What is Mode-S code ABB5E6?
ABB5E6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N85373.
Where is Mode-S ABB5E6 registered?
Mode-S code ABB5E6 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 ABB5E6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB5E6, octal 52732746, decimal 11,253,222.
What flights does ABB5E6 operate?
Mode-S ABB5E6 has broadcast 20 distinct callsigns, including SKW5527, SKW5486, SKW5450, SKW5647, SKW5570.