Apparatus

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sensors Mode-S transponder

A63E46

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N501GJ · BOMBARDIER Regional Jet CRJ-700 · operated by BANK OF UTAH TRUSTEE

Hex
A63E46
Octal
51437106
Decimal
10,894,918
Country
US
Tail
N501GJ
Type
CRJ7
No current signal · last broadcast 10h ago
Flights observed
564
Distinct callsigns
20
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S A63E46.

Country allocation

The ICAO 24-bit address A63E46 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
GJS4528 - 8 2026-06-17
GJS4421 - 8 2026-06-27
GJS4581 - 7 2026-07-12
GJS4171 - 7 2026-07-13
GJS4601 - 6 2026-06-20
GJS4596 - 6 2026-06-28
GJS4582 - 6 2026-06-27
GJS4518 GoJet Airlines 6 2026-06-07
GJS4477 - 6 2026-06-23
GJS4472 GoJet Airlines 6 2026-06-09
GJS4438 - 6 2026-06-29
GJS4411 - 6 2026-06-18
GJS4410 - 6 2026-07-02
GJS4397 - 6 2026-06-22
GJS4179 GoJet Airlines 6 2026-06-04
GJS4594 - 5 2026-07-13
GJS4563 - 5 2026-07-03
GJS4542 GoJet Airlines 5 2026-06-13
GJS4527 - 5 2026-07-11
GJS4512 - 5 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 GJS4412 ORD → STL Jul 13, 23:45 UTCJul 14, 00:30 UTC45m
2026-07-13 GJS4412 ORD → STL Jul 13, 23:28 UTCJul 14, 00:27 UTC59m
2026-07-13 GJS4171 - Jul 13, 20:30 UTCJul 13, 21:30 UTC1h 0m
2026-07-13 GJS4388 - Jul 13, 18:25 UTCJul 13, 19:15 UTC50m
2026-07-13 GJS4453 - Jul 13, 16:05 UTCJul 13, 16:45 UTC40m
2026-07-13 GJS4594 - Jul 13, 14:20 UTCJul 13, 15:05 UTC45m
2026-07-13 GJS4166 ABE → ORD Jul 13, 10:33 UTCJul 13, 11:53 UTC1h 20m
2026-07-13 GJS4166 ABE → ORD Jul 13, 10:15 UTCJul 13, 11:50 UTC1h 35m
2026-07-12 GJS4463 ORD → ABE Jul 12, 23:28 UTCJul 13, 00:32 UTC1h 4m
2026-07-12 GJS4463 - Jul 12, 23:00 UTCJul 12, 23:10 UTC10m
2026-07-12 GJS4452 - Jul 12, 21:00 UTCJul 12, 21:50 UTC50m
2026-07-12 GJS4581 - Jul 12, 18:15 UTCJul 12, 19:01 UTC45m
2026-07-12 GJS4517 STL → ORD Jul 12, 15:35 UTCJul 12, 16:25 UTC50m
2026-07-11 GJS4527 IAD → STL Jul 11, 22:01 UTCJul 11, 23:35 UTC1h 35m
2026-07-11 GJS4387 - Jul 11, 19:00 UTCJul 11, 20:00 UTC1h 0m
2026-07-11 GJS4420 IAD → CMH Jul 11, 17:10 UTCJul 11, 18:05 UTC55m
2026-07-11 GJS4468 - Jul 11, 14:45 UTCJul 11, 15:40 UTC55m
2026-07-11 GJS4606 IAD → BUF Jul 11, 12:40 UTCJul 11, 13:25 UTC45m
2026-07-11 GJS4503 - Jul 11, 10:45 UTCJul 11, 11:10 UTC25m
2026-07-10 GJS4498 - Jul 10, 13:15 UTCJul 10, 13:40 UTC25m
2026-07-10 GJS4389 BTV → IAD Jul 10, 02:40 UTCJul 10, 03:55 UTC1h 15m
2026-07-10 GJS4389 BTV → IAD Jul 10, 02:35 UTCJul 10, 04:09 UTC1h 34m
2026-07-10 GJS4476 - Jul 10, 00:50 UTCJul 10, 02:00 UTC1h 10m
2026-07-09 GJS4476 IAD → BTV Jul 9, 23:20 UTCJul 10, 01:59 UTC2h 39m
2026-07-09 GJS4506 STL → IAD Jul 9, 14:05 UTCJul 9, 15:45 UTC1h 40m
2026-07-03 GJS4506 STL → IAD Jul 3, 18:07 UTCJul 3, 19:42 UTC1h 35m
2026-07-03 GJS4576 - Jul 3, 06:35 UTCJul 3, 07:35 UTC1h 0m
2026-07-03 GJS4576 ORD → STL Jul 3, 06:50 UTCJul 3, 07:37 UTC47m
2026-07-03 GJS4563 - Jul 3, 00:10 UTCJul 3, 01:05 UTC55m
2026-07-03 GJS4563 SDF → ORD Jul 3, 00:10 UTCJul 3, 00:48 UTC38m
2026-07-02 GJS4519 ORD → SDF Jul 2, 21:58 UTCJul 2, 22:48 UTC50m
2026-07-02 GJS4519 - Jul 2, 21:40 UTCJul 2, 22:25 UTC45m
2026-07-02 GJS4410 - Jul 2, 16:50 UTCJul 2, 18:05 UTC1h 15m
2026-07-02 GJS4512 - Jul 2, 14:15 UTCJul 2, 15:20 UTC1h 5m
2026-07-02 GJS4496 - Jul 2, 10:40 UTCJul 2, 12:15 UTC1h 35m
2026-07-02 GJS4496 CAE → ORD Jul 2, 10:40 UTCJul 2, 12:10 UTC1h 30m
2026-07-01 GJS4478 - Jul 1, 23:55 UTCJul 2, 01:25 UTC1h 30m
2026-07-01 GJS4478 ORD → CAE Jul 1, 23:28 UTCJul 2, 01:26 UTC1h 58m
2026-07-01 GJS4409 GRB → ORD Jul 1, 20:55 UTCJul 1, 21:17 UTC22m
2026-07-01 GJS4409 - Jul 1, 20:50 UTCJul 1, 21:35 UTC45m
2026-07-01 GJS4554 - Jul 1, 19:15 UTCJul 1, 19:50 UTC35m
2026-07-01 GJS4554 ORD → GRB Jul 1, 19:26 UTCJul 1, 19:48 UTC22m
2026-07-01 GJS4595 - Jul 1, 16:15 UTCJul 1, 17:00 UTC45m
2026-07-01 GJS4611 - Jul 1, 14:10 UTCJul 1, 14:45 UTC35m
2026-07-01 GJS4522 - Jul 1, 11:00 UTCJul 1, 12:15 UTC1h 15m
2026-07-01 GJS4548 - Jul 1, 00:30 UTCJul 1, 01:30 UTC1h 0m
2026-06-30 GJS4452 STL → ORD Jun 30, 20:35 UTCJun 30, 21:25 UTC50m
2026-06-30 GJS4452 STL → ORD Jun 30, 20:38 UTCJun 30, 21:05 UTC27m
2026-06-30 GJS4581 - Jun 30, 18:35 UTCJun 30, 19:25 UTC50m
2026-06-30 GJS4581 ORD → STL Jun 30, 18:26 UTCJun 30, 19:19 UTC53m

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 N501GJ page for operator, model, and routing details .

Mode-S A63E46 frequently asked

What is Mode-S code A63E46?
A63E46 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N501GJ.
Where is Mode-S A63E46 registered?
Mode-S code A63E46 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 A63E46 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A63E46, octal 51437106, decimal 10,894,918.
What flights does A63E46 operate?
Mode-S A63E46 has broadcast 20 distinct callsigns, including GJS4528, GJS4421, GJS4581, GJS4171, GJS4601.