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sensors Mode-S transponder

A694B2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N523GJ · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST LEASING INC

Hex
A694B2
Octal
51512262
Decimal
10,917,042
Country
US
Tail
N523GJ
Type
CRJ7
No current signal · last broadcast 27m ago
Flights observed
645
Distinct callsigns
20
Country
US
Last broadcast
27m ago

Last known position

Most recent position reported by Mode-S A694B2.

Country allocation

The ICAO 24-bit address A694B2 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
GJS4603 - 10 2026-07-12
GJS4447 - 10 2026-07-10
GJS4613 - 9 2026-06-29
GJS4419 - 9 2026-07-09
GJS4582 - 8 2026-07-13
GJS4470 GoJet Airlines 8 2026-06-16
GJS4449 - 8 2026-07-01
GJS4442 GoJet Airlines 8 2026-06-16
GJS4554 - 7 2026-07-03
GJS4480 - 7 2026-07-02
GJS4475 - 7 2026-06-27
GJS4440 - 7 2026-07-10
GJS4192 GoJet Airlines 7 2026-06-12
GJS4191 - 7 2026-07-09
GJS4594 - 6 2026-07-14
GJS4586 GoJet Airlines 6 2026-07-08
GJS4540 GoJet Airlines 6 2026-06-02
GJS4515 GoJet Airlines 6 2026-05-31
GJS4500 - 6 2026-07-02
GJS4487 GoJet Airlines 6 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 GJS4594 - Jul 14, 13:50 UTCJul 14, 14:30 UTC40m
2026-07-14 GJS4438 - Jul 14, 10:25 UTCJul 14, 11:50 UTC1h 25m
2026-07-14 GJS4438 AVP → ORD Jul 14, 10:36 UTCJul 14, 11:44 UTC1h 8m
2026-07-14 GJS4187 ORD → AVP Jul 14, 01:03 UTCJul 14, 02:16 UTC1h 13m
2026-07-14 GJS4187 - Jul 14, 00:45 UTCJul 14, 02:10 UTC1h 25m
2026-07-13 GJS4582 - Jul 13, 23:05 UTCJul 13, 23:10 UTC5m
2026-07-13 GJS4582 LEX → ORD Jul 13, 22:00 UTCJul 13, 23:10 UTC1h 10m
2026-07-13 GJS4582 LEX → ORD Jul 13, 22:14 UTCJul 13, 22:46 UTC32m
2026-07-13 GJS4558 - Jul 13, 20:00 UTCJul 13, 21:00 UTC1h 0m
2026-07-13 GJS4170 DCA → EWR Jul 13, 17:25 UTCJul 13, 18:05 UTC40m
2026-07-13 GJS4460 - Jul 13, 16:00 UTCJul 13, 16:35 UTC35m
2026-07-13 GJS4190 - Jul 13, 13:20 UTCJul 13, 13:55 UTC35m
2026-07-13 GJS4190 ATW → ORD Jul 13, 13:32 UTCJul 13, 14:02 UTC30m
2026-07-13 GJS4495 ORD → ATW Jul 13, 03:25 UTCJul 13, 04:00 UTC35m
2026-07-12 GJS4603 - Jul 12, 23:00 UTCJul 12, 23:30 UTC30m
2026-07-12 GJS4194 - Jul 12, 21:35 UTCJul 12, 22:00 UTC25m
2026-07-12 GJS4194 ORD → MSN Jul 12, 21:34 UTCJul 12, 22:00 UTC26m
2026-07-12 GJS4381 BUF → ORD Jul 12, 18:19 UTCJul 12, 19:00 UTC41m
2026-07-12 GJS4381 - Jul 12, 18:01 UTCJul 12, 19:30 UTC1h 30m
2026-07-12 GJS4382 ORD → BUF Jul 12, 15:50 UTCJul 12, 16:55 UTC1h 5m
2026-07-12 GJS4382 ORD → BUF Jul 12, 15:58 UTCJul 12, 17:19 UTC1h 21m
2026-07-12 GJS4423 STL → ORD Jul 12, 12:35 UTCJul 12, 13:20 UTC45m
2026-07-11 GJS4576 ORD → STL Jul 11, 03:30 UTCJul 11, 04:40 UTC1h 10m
2026-07-10 GJS4447 - Jul 10, 21:55 UTCJul 11, 00:00 UTC2h 5m
2026-07-10 GJS4447 AVP → ORD Jul 10, 21:50 UTCJul 10, 23:35 UTC1h 45m
2026-07-10 GJS4501 - Jul 10, 19:25 UTCJul 10, 20:35 UTC1h 10m
2026-07-10 GJS4439 FSD → ORD Jul 10, 16:35 UTCJul 10, 17:55 UTC1h 20m
2026-07-10 GJS4462 - Jul 10, 14:05 UTCJul 10, 15:15 UTC1h 10m
2026-07-10 GJS4440 - Jul 10, 12:05 UTCJul 10, 12:30 UTC25m
2026-07-10 GJS4440 PIA → ORD Jul 10, 11:50 UTCJul 10, 12:25 UTC35m
2026-07-10 GJS4603 - Jul 10, 03:55 UTCJul 10, 04:35 UTC40m
2026-07-10 GJS4603 ORD → PIA Jul 10, 03:30 UTCJul 10, 04:30 UTC1h 0m
2026-07-09 GJS4434 - Jul 9, 23:55 UTCJul 10, 01:15 UTC1h 20m
2026-07-09 GJS4419 - Jul 9, 21:05 UTCJul 9, 23:00 UTC1h 55m
2026-07-09 GJS4607 - Jul 9, 15:20 UTCJul 9, 16:45 UTC1h 25m
2026-07-09 GJS4607 CAE → EWR Jul 9, 15:32 UTCJul 9, 16:46 UTC1h 14m
2026-07-09 GJS4191 EWR → CAE Jul 9, 12:56 UTCJul 9, 14:23 UTC1h 27m
2026-07-09 GJS4191 - Jul 9, 13:00 UTCJul 9, 14:20 UTC1h 20m
2026-07-09 GJS4580 - Jul 9, 10:10 UTCJul 9, 11:15 UTC1h 5m
2026-07-09 GJS4520 - Jul 9, 02:45 UTCJul 9, 03:55 UTC1h 10m
2026-07-08 GJS4385 ROC → EWR Jul 8, 23:20 UTCJul 9, 00:05 UTC45m
2026-07-08 GJS4586 ORD → ICT Jul 8, 21:40 UTCJul 8, 22:25 UTC45m
2026-07-08 GJS4586 ORD → ICT Jul 8, 21:42 UTCJul 8, 22:18 UTC36m
2026-07-08 GJS4494 MVY → EWR Jul 8, 14:30 UTCJul 8, 15:25 UTC55m
2026-07-08 GJS4491 - Jul 8, 12:30 UTCJul 8, 13:05 UTC35m
2026-07-08 GJS4514 - Jul 8, 00:15 UTCJul 8, 01:20 UTC1h 5m
2026-07-07 GJS4509 - Jul 7, 21:50 UTCJul 7, 22:50 UTC1h 0m
2026-07-07 GJS4509 EWR → GSO Jul 7, 21:55 UTCJul 7, 22:51 UTC56m
2026-07-07 GJS4560 - Jul 7, 19:30 UTCJul 7, 20:05 UTC35m
2026-07-07 GJS4472 EWR → DCA Jul 7, 17:15 UTCJul 7, 18:00 UTC45m

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 N523GJ page for operator, model, and routing details .

Mode-S A694B2 frequently asked

What is Mode-S code A694B2?
A694B2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N523GJ.
Where is Mode-S A694B2 registered?
Mode-S code A694B2 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 A694B2 broadcasting right now?
No active broadcast right now. Last signal was 27m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A694B2, octal 51512262, decimal 10,917,042.
What flights does A694B2 operate?
Mode-S A694B2 has broadcast 20 distinct callsigns, including GJS4603, GJS4447, GJS4613, GJS4419, GJS4582.