Apparatus

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sensors Mode-S transponder

A56643

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N447SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
A56643
Octal
51263103
Decimal
10,839,619
Country
US
Tail
N447SW
Type
CRJ2
No current signal · last broadcast 5d ago
Flights observed
113
Distinct callsigns
20
Country
US
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S A56643.

Country allocation

The ICAO 24-bit address A56643 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
SCW4717 - 3 2026-05-20
SCW4710 - 3 2026-04-17
SCW4610 Malmö Aviation 3 2026-06-21
SCW4010 - 3 2026-07-12
SCW3711 Malmö Aviation 3 2026-05-31
SCW3616 Malmö Aviation 3 2026-06-22
SCW3510 Malmö Aviation 3 2026-05-08
SCW4611 Malmö Aviation 2 2026-06-29
SCW4609 - 2 2026-06-28
SCW4608 - 2 2026-06-28
SCW4607 Malmö Aviation 2 2026-06-28
SCW4606 Malmö Aviation 2 2026-06-28
SCW4604 Malmö Aviation 2 2026-06-27
SCW4602 Malmö Aviation 2 2026-06-26
SCW4512 Malmö Aviation 2 2026-05-10
SCW4511 Malmö Aviation 2 2026-05-08
SCW4050 - 2 2026-07-05
SCW4011 - 2 2026-07-11
SCW3719 Malmö Aviation 2 2026-05-27
SCW3715 Malmö Aviation 2 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 SCW3017 SJC → GEG Jul 12, 19:15 UTCJul 12, 19:45 UTC30m
2026-07-12 SCW4010 - Jul 12, 13:30 UTCJul 12, 16:40 UTC3h 10m
2026-07-11 SCW3018 SBN → BOS Jul 11, 19:35 UTCJul 11, 20:55 UTC1h 20m
2026-07-11 SCW3011 MKE → IND Jul 11, 14:10 UTCJul 11, 14:55 UTC45m
2026-07-11 SCW4011 - Jul 11, 11:40 UTCJul 11, 13:00 UTC1h 20m
2026-07-11 SCW4011 - Jul 11, 08:20 UTCJul 11, 10:30 UTC2h 10m
2026-07-10 SCW4010 - Jul 10, 10:25 UTCJul 10, 11:10 UTC45m
2026-07-10 SCW4010 - Jul 10, 06:40 UTCJul 10, 08:55 UTC2h 15m
2026-07-10 SCW3010 BNA → DAY Jul 10, 02:10 UTCJul 10, 03:10 UTC1h 0m
2026-07-08 SCW3053 - Jul 8, 14:05 UTCJul 8, 15:45 UTC1h 40m
2026-07-07 SCW4051 - Jul 7, 11:30 UTCJul 7, 17:25 UTC5h 55m
2026-07-05 SCW4050 - Jul 5, 22:05 UTCJul 6, 01:10 UTC3h 5m
2026-07-05 SCW4050 - Jul 5, 17:40 UTCJul 5, 20:35 UTC2h 55m
2026-07-04 SCW3050 - Jul 4, 16:15 UTCJul 4, 19:00 UTC2h 45m
2026-06-29 SCW3614 BMA → RNB Jun 29, 19:29 UTCJun 29, 21:09 UTC1h 40m
2026-06-29 SCW4611 FRG → ACY Jun 29, 18:05 UTCJun 29, 18:34 UTC30m
2026-06-28 SCW3605 ACY → RDU Jun 28, 21:50 UTCJun 28, 22:24 UTC35m
2026-06-28 SCW4609 - Jun 28, 20:09 UTCJun 28, 20:54 UTC45m
2026-06-28 SCW3604 - Jun 28, 18:19 UTCJun 28, 19:09 UTC50m
2026-06-28 SCW4608 - Jun 28, 16:45 UTCJun 28, 17:34 UTC50m
2026-06-28 SCW4607 ACY → FRG Jun 28, 15:34 UTCJun 28, 16:05 UTC30m
2026-06-28 SCW4606 RDU → ACY Jun 28, 14:04 UTCJun 28, 14:39 UTC35m
2026-06-27 SDW4605 - Jun 27, 16:00 UTCJun 27, 16:24 UTC25m
2026-06-27 SCW4604 FRG → ACY Jun 27, 14:45 UTCJun 27, 15:19 UTC35m
2026-06-26 SCW4602 SOP → ACY Jun 26, 21:30 UTCJun 26, 22:05 UTC35m
2026-06-26 SCW3602 ACY → SOP Jun 26, 20:00 UTCJun 26, 20:40 UTC40m
2026-06-26 SCW4601 CAK → PIA Jun 26, 18:29 UTCJun 26, 19:20 UTC50m
2026-06-26 SCW3601 - Jun 26, 16:35 UTCJun 26, 17:25 UTC50m
2026-06-26 SCW4620 FRG → ACY Jun 26, 15:05 UTCJun 26, 15:29 UTC25m
2026-06-26 SCW4619 ACY → FRG Jun 26, 13:49 UTCJun 26, 14:29 UTC40m
2026-06-25 SCW4618 FRG → ACY Jun 25, 15:15 UTCJun 25, 15:44 UTC30m
2026-06-25 SCW4617 ACY → FRG Jun 25, 13:55 UTCJun 25, 14:29 UTC35m
2026-06-25 SCW3617 FRG → DTW Jun 25, 11:19 UTCJun 25, 12:35 UTC1h 15m
2026-06-22 SCW3616 FRG → SBN Jun 22, 21:54 UTCJun 22, 23:14 UTC1h 20m
2026-06-22 SCW4616 FRG → ACY Jun 22, 20:39 UTCJun 22, 21:10 UTC30m
2026-06-22 SCW4615 ACY → FRG Jun 22, 18:04 UTCJun 22, 18:35 UTC30m
2026-06-22 SCW3620 DTW → MKE Jun 22, 01:10 UTCJun 22, 02:10 UTC1h 0m
2026-06-21 SCW4614 - Jun 21, 23:30 UTCJun 22, 00:29 UTC1h 0m
2026-06-21 SCW3619 FRG → DTW Jun 21, 21:39 UTCJun 21, 22:10 UTC30m
2026-06-21 SCW4613 ACY → ORF Jun 21, 20:09 UTCJun 21, 20:50 UTC40m
2026-06-21 SCW3618 - Jun 21, 18:10 UTCJun 21, 18:54 UTC45m
2026-06-21 SCW4612 ACY → RDU Jun 21, 16:39 UTCJun 21, 17:29 UTC50m
2026-06-21 SCW4611 FRG → ACY Jun 21, 15:19 UTCJun 21, 15:49 UTC30m
2026-06-21 SCW4610 FRG → ACY Jun 21, 13:59 UTCJun 21, 14:24 UTC25m
2026-06-20 SCW4609 - Jun 20, 16:29 UTCJun 20, 16:59 UTC30m
2026-06-20 SCW4608 - Jun 20, 14:54 UTCJun 20, 15:29 UTC35m
2026-06-20 SCW4607 ACY → FRG Jun 20, 12:45 UTCJun 20, 13:39 UTC55m
2026-06-20 SCW3617 FRG → DTW Jun 20, 10:34 UTCJun 20, 11:34 UTC1h 0m
2026-06-19 SCW4606 RDU → ACY Jun 19, 21:04 UTCJun 19, 21:54 UTC50m
2026-06-19 SCW3616 FRG → SBN Jun 19, 19:25 UTCJun 19, 20:14 UTC50m

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 N447SW page for operator, model, and routing details .

Mode-S A56643 frequently asked

What is Mode-S code A56643?
A56643 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N447SW.
Where is Mode-S A56643 registered?
Mode-S code A56643 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 A56643 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A56643, octal 51263103, decimal 10,839,619.
What flights does A56643 operate?
Mode-S A56643 has broadcast 20 distinct callsigns, including SCW4717, SCW4710, SCW4610, SCW4010, SCW3711.