Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6F28C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N547GJ · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A6F28C
Octal
51571214
Decimal
10,941,068
Country
US
Tail
N547GJ
Type
CRJ7
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
700
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S A6F28C.

Country allocation

The ICAO 24-bit address A6F28C 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
GJS4393 - 11 2026-06-22
GJS4498 GoJet Airlines 10 2026-06-02
GJS4540 - 8 2026-07-16
GJS4421 - 8 2026-06-24
GJS4409 - 8 2026-07-15
GJS4605 GoJet Airlines 7 2026-05-29
GJS4527 GoJet Airlines 7 2026-06-02
GJS4505 GoJet Airlines 7 2026-07-24
GJS4430 GoJet Airlines 7 2026-07-23
GJS4177 GoJet Airlines 7 2026-07-20
GJS4557 - 6 2026-07-10
GJS4521 GoJet Airlines 6 2026-06-01
GJS4516 - 6 2026-06-13
GJS4488 GoJet Airlines 6 2026-07-18
GJS4486 - 6 2026-06-27
GJS4451 - 6 2026-06-24
GJS4425 GoJet Airlines 6 2026-07-26
GJS4183 GoJet Airlines 6 2026-07-19
GJS4180 - 6 2026-06-27
GJS4619 GoJet Airlines 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GJS4619 STL → ORD Jul 26, 19:20 UTCJul 26, 20:40 UTC1h 20m
2026-07-26 GJS4395 CVG → EWR Jul 26, 16:30 UTCJul 26, 17:25 UTC55m
2026-07-26 GJS4425 EWR → DCA Jul 26, 13:15 UTCJul 26, 14:50 UTC1h 35m
2026-07-26 GJS4425 EWR → DCA Jul 26, 13:17 UTCJul 26, 15:05 UTC1h 48m
2026-07-24 GJS4505 STL → EWR Jul 24, 18:45 UTCJul 24, 19:35 UTC50m
2026-07-24 GJS4499 EWR → DCA Jul 24, 16:40 UTCJul 24, 17:25 UTC45m
2026-07-24 GJS4181 EWR → DCA Jul 24, 14:40 UTCJul 24, 15:40 UTC1h 0m
2026-07-24 GJS4188 IAD → EWR Jul 24, 12:40 UTCJul 24, 13:40 UTC1h 0m
2026-07-24 GJS4503 EWR → DCA Jul 24, 10:45 UTCJul 24, 11:10 UTC25m
2026-07-23 GJS4386 EWR → PQI Jul 23, 23:15 UTCJul 24, 00:05 UTC50m
2026-07-23 GJS4401 EWR → PVD Jul 23, 20:35 UTCJul 23, 21:15 UTC40m
2026-07-23 GJS4433 EWR → DCA Jul 23, 18:25 UTCJul 23, 19:10 UTC45m
2026-07-23 GJS4433 EWR → DCA Jul 23, 18:27 UTCJul 23, 19:39 UTC1h 12m
2026-07-23 GJS4403 SAV → ORD Jul 23, 16:15 UTCJul 23, 17:15 UTC1h 0m
2026-07-23 GJS4403 SAV → ORD Jul 23, 16:08 UTCJul 23, 17:14 UTC1h 6m
2026-07-23 GJS4390 EWR → GSO Jul 23, 14:25 UTCJul 23, 15:20 UTC55m
2026-07-23 GJS4430 DCA → EWR Jul 23, 12:45 UTCJul 23, 13:25 UTC40m
2026-07-23 GJS4437 EWR → PHL Jul 23, 11:10 UTCJul 23, 11:50 UTC40m
2026-07-22 GJS4413 DCA → EWR Jul 22, 22:05 UTCJul 22, 23:45 UTC1h 40m
2026-07-22 GJS4413 DCA → EWR Jul 22, 22:14 UTCJul 22, 23:43 UTC1h 29m
2026-07-22 GJS4465 ILM → EWR Jul 22, 20:00 UTCJul 22, 21:05 UTC1h 5m
2026-07-22 GJS4395 CVG → EWR Jul 22, 16:30 UTCJul 22, 17:20 UTC50m
2026-07-22 GJS4576 ORD → CID Jul 22, 03:30 UTCJul 22, 04:15 UTC45m
2026-07-22 GJS4576 ORD → CID Jul 22, 03:30 UTCJul 22, 04:33 UTC1h 3m
2026-07-21 GJS4483 DAY → ORD Jul 21, 23:30 UTCJul 22, 01:15 UTC1h 45m
2026-07-21 GJS4482 BTV → IAD Jul 21, 20:50 UTCJul 21, 22:15 UTC1h 25m
2026-07-21 GJS4571 ICT → ORD Jul 21, 18:00 UTCJul 21, 19:40 UTC1h 40m
2026-07-21 GJS4543 ORD → CMH Jul 21, 15:50 UTCJul 21, 16:55 UTC1h 5m
2026-07-21 GJS4449 ORD → STL Jul 21, 12:40 UTCJul 21, 14:20 UTC1h 40m
2026-07-21 GJS4447 RIC → EWR Jul 21, 03:00 UTCJul 21, 04:15 UTC1h 15m
2026-07-20 GJS4447 RIC → EWR Jul 20, 22:25 UTCJul 21, 00:10 UTC1h 45m
2026-07-20 GJS4501 SCE → EWR Jul 20, 19:55 UTCJul 20, 21:10 UTC1h 15m
2026-07-20 GJS4439 FSD → ORD Jul 20, 17:00 UTCJul 20, 18:20 UTC1h 20m
2026-07-20 GJS4462 ORD → FSD Jul 20, 14:15 UTCJul 20, 15:35 UTC1h 20m
2026-07-20 GJS4397 GRB → ORD Jul 20, 11:35 UTCJul 20, 12:20 UTC45m
2026-07-20 GJS4610 ITH → EWR Jul 20, 03:35 UTCJul 20, 04:15 UTC40m
2026-07-20 GJS4610 ITH → EWR Jul 20, 03:30 UTCJul 20, 04:19 UTC49m
2026-07-20 GJS4177 LGA → IAD Jul 20, 00:10 UTCJul 20, 01:10 UTC1h 0m
2026-07-19 GJS4445 EWR → DCA Jul 19, 21:55 UTCJul 19, 22:50 UTC55m
2026-07-19 GJS4168 - Jul 19, 18:20 UTCJul 19, 20:00 UTC1h 40m
2026-07-19 GJS4380 - Jul 19, 15:50 UTCJul 19, 17:10 UTC1h 20m
2026-07-19 GJS4183 EWR → RIC Jul 19, 13:05 UTCJul 19, 13:55 UTC50m
2026-07-19 GJS4412 ORD → STL Jul 19, 00:40 UTCJul 19, 01:40 UTC1h 0m
2026-07-18 GJS4533 IAD → LGA Jul 18, 23:05 UTCJul 18, 23:35 UTC30m
2026-07-18 GJS4488 GSP → EWR Jul 18, 19:30 UTCJul 18, 19:45 UTC15m
2026-07-18 GJS4395 STL → ORD Jul 18, 16:30 UTCJul 18, 17:50 UTC1h 20m
2026-07-18 GJS4395 STL → ORD Jul 18, 16:40 UTCJul 18, 17:29 UTC49m
2026-07-18 GJS4613 - Jul 18, 14:50 UTCJul 18, 15:35 UTC45m
2026-07-18 GJS4601 GSO → EWR Jul 18, 11:20 UTCJul 18, 12:30 UTC1h 10m
2026-07-18 GJS4468 ORD → LEX Jul 18, 04:15 UTCJul 18, 05:10 UTC55m

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 N547GJ page for operator, model, and routing details .

Mode-S A6F28C frequently asked

What is Mode-S code A6F28C?
A6F28C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N547GJ.
Where is Mode-S A6F28C registered?
Mode-S code A6F28C 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 A6F28C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6F28C, octal 51571214, decimal 10,941,068.
What flights does A6F28C operate?
Mode-S A6F28C has broadcast 20 distinct callsigns, including GJS4393, GJS4498, GJS4540, GJS4421, GJS4409.