Apparatus

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sensors Mode-S transponder

A6CB0D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N537GJ · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A6CB0D
Octal
51545415
Decimal
10,930,957
Country
US
Tail
N537GJ
Type
CRJ7
No current signal · last broadcast Jul 26, 20:50 UTC
Flights observed
655
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S A6CB0D.

Country allocation

The ICAO 24-bit address A6CB0D 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
GJS4459 - 8 2026-06-16
GJS4601 GoJet Airlines 7 2026-06-04
GJS4523 - 7 2026-06-30
GJS4510 - 7 2026-07-01
GJS4481 GoJet Airlines 7 2026-05-02
GJS4434 - 7 2026-06-27
GJS4395 GoJet Airlines 7 2026-07-24
GJS4189 - 7 2026-06-27
GJS4610 - 6 2026-07-16
GJS4558 GoJet Airlines 6 2026-07-26
GJS4547 GoJet Airlines 6 2026-07-18
GJS4487 GoJet Airlines 6 2026-07-21
GJS4465 - 6 2026-07-19
GJS4442 GoJet Airlines 6 2026-05-12
GJS4427 GoJet Airlines 6 2026-07-18
GJS4380 - 6 2026-07-13
GJS4175 - 6 2026-07-16
GJS4168 - 6 2026-07-13
GJS3376 - 6 2026-07-01
GJS4618 - 5 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GJS4558 GSO → EWR Jul 26, 20:05 UTCJul 26, 20:50 UTC45m
2026-07-26 GJS4170 DCA → EWR Jul 26, 17:35 UTCJul 26, 18:10 UTC35m
2026-07-26 GJS4460 LEX → ORD Jul 26, 16:10 UTCJul 26, 16:45 UTC35m
2026-07-26 GJS4190 GRR → EWR Jul 26, 13:25 UTCJul 26, 14:30 UTC1h 5m
2026-07-26 GJS4495 GSO → EWR Jul 26, 03:40 UTCJul 26, 04:25 UTC45m
2026-07-26 GJS4495 GSO → EWR Jul 26, 03:30 UTCJul 26, 04:16 UTC46m
2026-07-26 GJS4177 LGA → IAD Jul 26, 00:00 UTCJul 26, 00:45 UTC45m
2026-07-26 GJS4177 LGA → IAD Jul 26, 00:09 UTCJul 26, 00:32 UTC23m
2026-07-25 GJS4445 EWR → DCA Jul 25, 21:55 UTCJul 25, 22:40 UTC45m
2026-07-25 GJS4429 CVG → IAD Jul 25, 19:40 UTCJul 25, 20:15 UTC35m
2026-07-25 GJS4556 PQI → EWR Jul 25, 18:10 UTCJul 25, 18:25 UTC15m
2026-07-25 GJS4426 GSO → EWR Jul 25, 14:15 UTCJul 25, 15:40 UTC1h 25m
2026-07-25 GJS4553 ORD → LIT Jul 25, 00:50 UTCJul 25, 02:05 UTC1h 15m
2026-07-24 GJS4582 GSO → EWR Jul 24, 22:15 UTCJul 24, 23:10 UTC55m
2026-07-24 GJS4558 GSO → EWR Jul 24, 19:50 UTCJul 24, 20:40 UTC50m
2026-07-24 GJS4395 CVG → EWR Jul 24, 16:35 UTCJul 24, 17:25 UTC50m
2026-07-24 GJS4425 EWR → DCA Jul 24, 13:15 UTCJul 24, 15:00 UTC1h 45m
2026-07-23 GJS4418 DCA → EWR Jul 23, 18:45 UTCJul 23, 19:25 UTC40m
2026-07-23 GJS4612 MSN → ORD Jul 23, 17:05 UTCJul 23, 17:45 UTC40m
2026-07-23 GJS4485 EWR → DCA Jul 23, 15:15 UTCJul 23, 15:35 UTC20m
2026-07-22 GJS4386 - Jul 22, 23:05 UTCJul 23, 00:00 UTC55m
2026-07-22 GJS4401 EWR → PVD Jul 22, 20:55 UTCJul 22, 21:40 UTC45m
2026-07-22 GJS4401 EWR → PVD Jul 22, 20:54 UTCJul 22, 21:40 UTC46m
2026-07-22 GJS4433 EWR → DCA Jul 22, 18:15 UTCJul 22, 19:00 UTC45m
2026-07-22 GJS4433 EWR → DCA Jul 22, 18:23 UTCJul 22, 18:57 UTC34m
2026-07-22 GJS3375 - Jul 22, 12:20 UTCJul 22, 13:20 UTC1h 0m
2026-07-21 GJS4487 PIT → EWR Jul 21, 12:41 UTCJul 21, 13:39 UTC58m
2026-07-21 GJS4487 PIT → EWR Jul 21, 12:25 UTCJul 21, 13:35 UTC1h 10m
2026-07-21 GJS4561 PWM → IAD Jul 21, 00:15 UTCJul 21, 00:50 UTC35m
2026-07-21 GJS4561 PWM → IAD Jul 21, 00:16 UTCJul 21, 00:43 UTC27m
2026-07-20 GJS4176 EWR → DCA Jul 20, 22:20 UTCJul 20, 23:15 UTC55m
2026-07-20 GJS4457 - Jul 20, 19:20 UTCJul 20, 20:20 UTC1h 0m
2026-07-20 GJS4396 EWR → RIC Jul 20, 17:10 UTCJul 20, 18:05 UTC55m
2026-07-20 GJS4508 STL → EWR Jul 20, 15:20 UTCJul 20, 16:00 UTC40m
2026-07-20 GJS4444 EWR → DCA Jul 20, 13:20 UTCJul 20, 14:05 UTC45m
2026-07-20 GJS4399 CVG → EWR Jul 20, 10:20 UTCJul 20, 11:40 UTC1h 20m
2026-07-20 GJS4405 EWR → DTW Jul 20, 03:25 UTCJul 20, 04:50 UTC1h 25m
2026-07-19 GJS4413 DCA → EWR Jul 19, 22:55 UTCJul 20, 00:35 UTC1h 40m
2026-07-19 GJS4465 - Jul 19, 19:45 UTCJul 19, 20:55 UTC1h 10m
2026-07-19 GJS4525 - Jul 19, 16:50 UTCJul 19, 18:00 UTC1h 10m
2026-07-19 GJS4529 - Jul 19, 14:10 UTCJul 19, 15:20 UTC1h 10m
2026-07-19 GJS4565 ICT → ORD Jul 19, 11:18 UTCJul 19, 12:24 UTC1h 6m
2026-07-18 GJS4591 DCA → EWR Jul 18, 21:05 UTCJul 18, 22:25 UTC1h 20m
2026-07-18 GJS4547 IAD → PVD Jul 18, 17:15 UTCJul 18, 19:10 UTC1h 55m
2026-07-18 GJS4427 EWR → DCA Jul 18, 13:20 UTCJul 18, 14:50 UTC1h 30m
2026-07-17 GJS4566 - Jul 17, 23:45 UTCJul 18, 01:05 UTC1h 20m
2026-07-17 GJS4568 - Jul 17, 19:20 UTCJul 17, 20:20 UTC1h 0m
2026-07-17 GJS4166 EWR → CLT Jul 17, 10:33 UTCJul 17, 11:47 UTC1h 14m
2026-07-17 GJS4166 EWR → CLT Jul 17, 10:20 UTCJul 17, 11:55 UTC1h 35m
2026-07-17 GJS4463 ORD → ABE Jul 17, 01:39 UTCJul 17, 03:10 UTC1h 30m

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 N537GJ page for operator, model, and routing details .

Mode-S A6CB0D frequently asked

What is Mode-S code A6CB0D?
A6CB0D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N537GJ.
Where is Mode-S A6CB0D registered?
Mode-S code A6CB0D 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 A6CB0D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6CB0D, octal 51545415, decimal 10,930,957.
What flights does A6CB0D operate?
Mode-S A6CB0D has broadcast 20 distinct callsigns, including GJS4459, GJS4601, GJS4523, GJS4510, GJS4481.