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sensors Mode-S transponder

A752BF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N571GJ · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A752BF
Octal
51651277
Decimal
10,965,695
Country
US
Tail
N571GJ
Type
CRJ7
No current signal · last broadcast 5h ago
Flights observed
387
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A752BF.

Country allocation

The ICAO 24-bit address A752BF 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
SKW5346 - 7 2026-07-01
SKW5055 - 7 2026-07-08
SKW6031 - 6 2026-06-12
SKW5622 - 5 2026-06-12
SKW5377 SkyWest Airlines 5 2026-06-12
SKW5348 - 5 2026-06-27
SKW5045 SkyWest Airlines 5 2026-05-12
SKW6078 SkyWest Airlines 4 2026-05-11
SKW5866 - 4 2026-07-03
SKW5853 - 4 2026-07-13
SKW5824 - 4 2026-07-03
SKW5723 - 4 2026-07-07
SKW5539 - 4 2026-07-10
SKW5462 - 4 2026-06-21
SKW5421 SkyWest Airlines 4 2026-04-19
SKW5336 - 4 2026-07-08
SKW4807 - 4 2026-07-01
SKW6048 SkyWest Airlines 3 2026-04-26
SKW6037 - 3 2026-07-10
SKW5989 SkyWest Airlines 3 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SKW5640 ORD → TVC Jul 13, 21:15 UTCJul 13, 21:30 UTC15m
2026-07-13 SKW5640 - Jul 13, 20:55 UTCJul 13, 21:30 UTC35m
2026-07-13 SKW5714 - Jul 13, 18:40 UTCJul 13, 19:15 UTC35m
2026-07-13 SKW5234 - Jul 13, 16:20 UTCJul 13, 17:00 UTC40m
2026-07-13 SKW5853 - Jul 13, 12:45 UTCJul 13, 14:10 UTC1h 25m
2026-07-13 SKW5767 - Jul 13, 03:01 UTCJul 13, 04:10 UTC1h 10m
2026-07-13 SKW6050 - Jul 13, 00:01 UTCJul 13, 00:50 UTC50m
2026-07-13 SKW6050 DSM → ORD Jul 13, 00:01 UTCJul 13, 00:50 UTC49m
2026-07-12 SKW5230 - Jul 12, 22:20 UTCJul 12, 23:10 UTC50m
2026-07-12 SKW4691 - Jul 12, 20:10 UTCJul 12, 21:05 UTC55m
2026-07-12 SKW4647 - Jul 12, 18:05 UTCJul 12, 18:45 UTC40m
2026-07-12 SKW4647 ORD → CID Jul 12, 18:20 UTCJul 12, 18:44 UTC24m
2026-07-12 SKW5657 - Jul 12, 16:20 UTCJul 12, 16:50 UTC30m
2026-07-12 SKW5656 - Jul 12, 14:05 UTCJul 12, 14:35 UTC30m
2026-07-12 SKW4651 - Jul 12, 10:45 UTCJul 12, 12:15 UTC1h 30m
2026-07-11 SKW5663 - Jul 11, 23:55 UTCJul 12, 01:05 UTC1h 10m
2026-07-11 SKW4685 - Jul 11, 21:40 UTCJul 11, 22:45 UTC1h 5m
2026-07-11 SKW5437 - Jul 11, 18:05 UTCJul 11, 18:55 UTC50m
2026-07-11 SKW5664 - Jul 11, 16:10 UTCJul 11, 17:00 UTC50m
2026-07-11 SKW5721 - Jul 11, 14:20 UTCJul 11, 15:00 UTC40m
2026-07-11 SKW5721 ORD → CID Jul 11, 14:14 UTCJul 11, 14:50 UTC36m
2026-07-11 SKW5896 - Jul 11, 11:35 UTCJul 11, 12:10 UTC35m
2026-07-11 SKW4711 - Jul 11, 01:05 UTCJul 11, 01:20 UTC15m
2026-07-10 SKW5865 - Jul 10, 22:35 UTCJul 10, 23:15 UTC40m
2026-07-10 SKW5505 ORD → SBN Jul 10, 21:28 UTCJul 10, 21:30 UTC2m
2026-07-10 SKW5505 - Jul 10, 21:10 UTCJul 10, 21:30 UTC20m
2026-07-10 SKW5617 - Jul 10, 18:30 UTCJul 10, 20:10 UTC1h 40m
2026-07-10 SKW6037 - Jul 10, 16:10 UTCJul 10, 17:15 UTC1h 5m
2026-07-10 SKW5598 - Jul 10, 11:50 UTCJul 10, 12:20 UTC30m
2026-07-10 SKW5539 - Jul 10, 04:20 UTCJul 10, 04:45 UTC25m
2026-07-10 SKW5539 ORD → MLI Jul 10, 03:46 UTCJul 10, 04:47 UTC1h 1m
2026-07-10 SKW5653 - Jul 10, 01:20 UTCJul 10, 01:40 UTC20m
2026-07-09 SKW5555 - Jul 9, 23:50 UTCJul 10, 00:15 UTC25m
2026-07-09 SKW5555 ORD → MKE Jul 9, 23:37 UTCJul 10, 00:04 UTC27m
2026-07-09 SKW5436 - Jul 9, 21:35 UTCJul 9, 22:00 UTC25m
2026-07-09 SKW393H - Jul 9, 20:05 UTCJul 9, 20:30 UTC25m
2026-07-09 SKW5754 - Jul 9, 16:55 UTCJul 9, 17:55 UTC1h 0m
2026-07-09 SKW5819 - Jul 9, 14:15 UTCJul 9, 15:10 UTC55m
2026-07-09 SKW5076 PAH → ORD Jul 9, 10:01 UTCJul 9, 11:04 UTC1h 3m
2026-07-08 SKW5055 - Jul 8, 23:55 UTCJul 9, 01:15 UTC1h 20m
2026-07-08 SKW5055 - Jul 8, 21:00 UTCJul 8, 22:45 UTC1h 45m
2026-07-08 SKW473M - Jul 8, 18:10 UTCJul 8, 19:20 UTC1h 10m
2026-07-08 SKW5598 - Jul 8, 11:50 UTCJul 8, 12:30 UTC40m
2026-07-08 SKW5539 ORD → MLI Jul 8, 03:40 UTCJul 8, 04:09 UTC29m
2026-07-08 SKW5539 - Jul 8, 03:50 UTCJul 8, 04:05 UTC15m
2026-07-08 SKW5336 - Jul 8, 00:20 UTCJul 8, 01:35 UTC1h 15m
2026-07-08 SKW5336 MEM → ORD Jul 8, 00:20 UTCJul 8, 01:33 UTC1h 13m
2026-07-07 SKW4742 - Jul 7, 22:05 UTCJul 7, 23:15 UTC1h 10m
2026-07-07 SKW4742 ORD → MEM Jul 7, 21:43 UTCJul 7, 23:21 UTC1h 38m
2026-07-07 SKW5977 - Jul 7, 16:50 UTCJul 7, 18:25 UTC1h 35m

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 N571GJ page for operator, model, and routing details .

Mode-S A752BF frequently asked

What is Mode-S code A752BF?
A752BF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N571GJ.
Where is Mode-S A752BF registered?
Mode-S code A752BF 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 A752BF broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A752BF, octal 51651277, decimal 10,965,695.
What flights does A752BF operate?
Mode-S A752BF has broadcast 20 distinct callsigns, including SKW5346, SKW5055, SKW6031, SKW5622, SKW5377.