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sensors Mode-S transponder

A55ED5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N445SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
A55ED5
Octal
51257325
Decimal
10,837,717
Country
US
Tail
N445SW
Type
CRJ2
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
594
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A55ED5.

Country allocation

The ICAO 24-bit address A55ED5 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
SKW5861 SkyWest Airlines 7 2026-05-18
SKW5044 - 7 2026-06-23
SKW4792 SkyWest Airlines 7 2026-07-24
SKW5036 SkyWest Airlines 6 2026-04-30
SKW5027 - 6 2026-07-06
SKW6022 - 5 2026-07-09
SKW6000 SkyWest Airlines 5 2026-05-15
SKW5448 - 5 2026-07-18
SKW5285 - 5 2026-07-20
SKW5224 - 5 2026-06-29
SKW5137 SkyWest Airlines 5 2026-06-30
SKW5136 - 5 2026-06-24
SKW5086 - 5 2026-06-19
SKW5079 - 5 2026-06-27
SKW5039 - 5 2026-07-02
SKW4674 SkyWest Airlines 5 2026-05-01
SKW6075 SkyWest Airlines 4 2026-07-25
SKW5952 - 4 2026-06-29
SKW5708 SkyWest Airlines 4 2026-06-10
SKW5488 SkyWest Airlines 4 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4718 FAT → SFO Jul 26, 20:15 UTCJul 26, 21:15 UTC1h 0m
2026-07-26 SKW5244 ORD → TUL Jul 26, 18:10 UTCJul 26, 19:25 UTC1h 15m
2026-07-26 SKW5106 ORD → CMX Jul 26, 14:25 UTCJul 26, 15:55 UTC1h 30m
2026-07-25 SKW730V ORD → SLN Jul 25, 21:50 UTCJul 25, 23:05 UTC1h 15m
2026-07-25 SKW730V ORD → SLN Jul 25, 21:55 UTCJul 25, 23:09 UTC1h 14m
2026-07-25 SKW6075 ROW → DEN Jul 25, 18:40 UTCJul 25, 20:05 UTC1h 25m
2026-07-25 SKW6075 ROW → DEN Jul 25, 18:41 UTCJul 25, 19:52 UTC1h 11m
2026-07-25 SKW484C ICT → ORD Jul 25, 16:05 UTCJul 25, 17:30 UTC1h 25m
2026-07-25 SKW484C ICT → ORD Jul 25, 16:12 UTCJul 25, 17:32 UTC1h 20m
2026-07-25 SKW4794 SBN → ORD Jul 25, 13:30 UTCJul 25, 13:40 UTC10m
2026-07-25 SKW5274 GRB → ORD Jul 25, 02:50 UTCJul 25, 03:10 UTC20m
2026-07-24 SKW4792 JAX → ORD Jul 24, 23:40 UTCJul 25, 00:55 UTC1h 15m
2026-07-24 SKW5296 SLC → SFO Jul 24, 21:30 UTCJul 24, 22:40 UTC1h 10m
2026-07-24 SKW4752 ORD → ROA Jul 24, 18:15 UTCJul 24, 19:15 UTC1h 0m
2026-07-24 SKW519Y ORD → CAK Jul 24, 16:05 UTCJul 24, 17:05 UTC1h 0m
2026-07-24 SKW519Y ORD → CAK Jul 24, 16:14 UTCJul 24, 16:59 UTC45m
2026-07-24 SKW4794 SBN → ORD Jul 24, 13:35 UTCJul 24, 13:50 UTC15m
2026-07-22 SKW6081 ORD → TYS Jul 22, 16:55 UTCJul 22, 17:55 UTC1h 0m
2026-07-21 SKW6071 - Jul 21, 17:15 UTCJul 21, 17:35 UTC20m
2026-07-21 SKW6070 LBF → DEN Jul 21, 14:35 UTCJul 21, 15:10 UTC35m
2026-07-21 SKW6070 LBF → DEN Jul 21, 14:29 UTCJul 21, 15:04 UTC35m
2026-07-20 SKW6074 - Jul 20, 22:25 UTCJul 20, 23:25 UTC1h 0m
2026-07-20 SKW5352 - Jul 20, 19:40 UTCJul 20, 20:00 UTC20m
2026-07-20 SKW5285 - Jul 20, 15:45 UTCJul 20, 16:10 UTC25m
2026-07-20 SKW5285 ORD → SBN Jul 20, 15:58 UTCJul 20, 16:09 UTC11m
2026-07-20 SKW5272 LAX → SFO Jul 20, 13:50 UTCJul 20, 14:20 UTC30m
2026-07-20 SKW5272 LAX → SFO Jul 20, 13:39 UTCJul 20, 14:26 UTC47m
2026-07-20 SKW5595 SFO → OTH Jul 20, 11:05 UTCJul 20, 11:35 UTC30m
2026-07-20 SKW5595 SFO → OTH Jul 20, 11:19 UTCJul 20, 11:35 UTC16m
2026-07-19 SKW5263 - Jul 19, 17:00 UTCJul 19, 17:10 UTC10m
2026-07-19 SKW5263 - Jul 19, 15:05 UTCJul 19, 17:10 UTC2h 5m
2026-07-19 SKW5263 ABE → ORD Jul 19, 14:53 UTCJul 19, 16:45 UTC1h 52m
2026-07-19 SKW5446 SFO → SBP Jul 19, 12:20 UTCJul 19, 13:45 UTC1h 25m
2026-07-19 SKW5799 IAH → SAT Jul 19, 10:35 UTCJul 19, 11:05 UTC30m
2026-07-19 SKW5799 IAH → SAT Jul 19, 10:17 UTCJul 19, 10:51 UTC34m
2026-07-18 SKW5262 ORD → MKE Jul 18, 20:35 UTCJul 18, 20:50 UTC15m
2026-07-18 SKW5448 - Jul 18, 19:00 UTCJul 18, 19:10 UTC10m
2026-07-18 SKW5448 - Jul 18, 17:30 UTCJul 18, 19:10 UTC1h 40m
2026-07-18 SKW5448 FAR → ORD Jul 18, 17:45 UTCJul 18, 18:44 UTC59m
2026-07-18 SKW4789 - Jul 18, 03:20 UTCJul 18, 04:50 UTC1h 30m
2026-07-18 SKW4808 MFR → SFO Jul 18, 00:45 UTCJul 18, 01:20 UTC35m
2026-07-17 SKW394J - Jul 17, 21:44 UTCJul 17, 22:20 UTC35m
2026-07-17 SKW5915 ORD → BNA Jul 17, 19:55 UTCJul 17, 20:35 UTC40m
2026-07-17 SKW5344 - Jul 17, 17:25 UTCJul 17, 18:10 UTC45m
2026-07-16 SKW4681 - Jul 16, 00:00 UTCJul 16, 00:45 UTC45m
2026-07-15 SKW5907 - Jul 15, 20:50 UTCJul 15, 21:25 UTC35m
2026-07-15 SKW4639 - Jul 15, 18:00 UTCJul 15, 18:35 UTC35m
2026-07-15 SKW4639 ATW → ORD Jul 15, 17:54 UTCJul 15, 18:30 UTC36m
2026-07-15 SKW6083 - Jul 15, 16:35 UTCJul 15, 17:05 UTC30m
2026-07-15 SKW4794 - Jul 15, 13:50 UTCJul 15, 14:05 UTC15m

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 N445SW page for operator, model, and routing details .

Mode-S A55ED5 frequently asked

What is Mode-S code A55ED5?
A55ED5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N445SW.
Where is Mode-S A55ED5 registered?
Mode-S code A55ED5 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 A55ED5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A55ED5, octal 51257325, decimal 10,837,717.
What flights does A55ED5 operate?
Mode-S A55ED5 has broadcast 20 distinct callsigns, including SKW5861, SKW5044, SKW4792, SKW5036, SKW5027.