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sensors Mode-S transponder

A50192

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N421YX · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A50192
Octal
51200622
Decimal
10,813,842
Country
US
Tail
N421YX
Type
E75L
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
769
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A50192.

Country allocation

The ICAO 24-bit address A50192 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
RPA4729 - 13 2026-07-11
RPA4527 Republic Airlines 9 2026-05-09
RPA4491 - 9 2026-07-16
RPA4431 - 9 2026-07-09
RPA4676 - 8 2026-07-05
RPA4775 Republic Airlines 7 2026-05-21
RPA4657 - 7 2026-07-17
RPA4416 Republic Airlines 7 2026-05-08
RPA4804 Republic Airlines 6 2026-06-30
RPA4749 - 6 2026-06-21
RPA4708 - 6 2026-06-26
RPA4698 - 6 2026-07-11
RPA4680 Republic Airlines 6 2026-06-12
RPA4671 - 6 2026-07-17
RPA4553 Republic Airlines 6 2026-06-10
RPA4481 Republic Airlines 6 2026-05-09
RPA4433 Republic Airlines 6 2026-07-20
RPA4419 - 6 2026-07-21
RPA4415 - 6 2026-07-11
RPA4399 - 6 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4346 LGA → STL Jul 26, 22:10 UTCJul 26, 22:30 UTC20m
2026-07-26 RPA4781 PHL → MVY Jul 26, 19:15 UTCJul 26, 19:55 UTC40m
2026-07-26 RPA4638 BOS → CMH Jul 26, 16:05 UTCJul 26, 17:25 UTC1h 20m
2026-07-26 RPA4360 BTV → DCA Jul 26, 12:45 UTCJul 26, 14:20 UTC1h 35m
2026-07-26 RPA4626 OMA → ORD Jul 26, 10:40 UTCJul 26, 11:45 UTC1h 5m
2026-07-25 RPA4637 DCA → BDL Jul 25, 22:54 UTCJul 26, 00:25 UTC1h 31m
2026-07-25 RPA4637 DCA → BDL Jul 25, 22:55 UTCJul 26, 00:20 UTC1h 25m
2026-07-25 RPA4404 CLE → PHL Jul 25, 16:25 UTCJul 25, 17:55 UTC1h 30m
2026-07-25 RPA4404 CLE → PHL Jul 25, 16:20 UTCJul 25, 17:48 UTC1h 28m
2026-07-25 RPA4404 CLE → PHL Jul 25, 14:05 UTCJul 25, 15:35 UTC1h 30m
2026-07-25 RPA4613 BDL → DCA Jul 25, 11:00 UTCJul 25, 12:20 UTC1h 20m
2026-07-25 RPA4613 BDL → DCA Jul 25, 10:58 UTCJul 25, 12:20 UTC1h 22m
2026-07-24 RPA4637 DCA → BDL Jul 24, 22:44 UTCJul 25, 00:15 UTC1h 31m
2026-07-24 RPA4637 DCA → BDL Jul 24, 22:45 UTCJul 25, 00:20 UTC1h 35m
2026-07-24 RPA4545 RDU → LGA Jul 24, 20:00 UTCJul 24, 21:00 UTC1h 0m
2026-07-24 RPA4545 RDU → LGA Jul 24, 17:45 UTCJul 24, 18:30 UTC45m
2026-07-24 RPA4602 CLE → JFK Jul 24, 15:00 UTCJul 24, 15:50 UTC50m
2026-07-24 RPA4649 PHL → ATL Jul 24, 12:55 UTCJul 24, 13:55 UTC1h 0m
2026-07-24 RPA4626 OMA → ORD Jul 24, 10:10 UTCJul 24, 11:30 UTC1h 20m
2026-07-23 RPA4637 DCA → BDL Jul 23, 23:10 UTCJul 24, 00:40 UTC1h 30m
2026-07-23 RPA4545 RDU → LGA Jul 23, 19:55 UTCJul 23, 20:55 UTC1h 0m
2026-07-23 RPA4545 RDU → LGA Jul 23, 19:48 UTCJul 23, 20:38 UTC50m
2026-07-23 RPA4545 RDU → LGA Jul 23, 17:55 UTCJul 23, 18:35 UTC40m
2026-07-23 RPA4602 CLE → JFK Jul 23, 14:55 UTCJul 23, 16:00 UTC1h 5m
2026-07-23 RPA4649 - Jul 23, 13:05 UTCJul 23, 14:05 UTC1h 0m
2026-07-23 RPA4626 OMA → ORD Jul 23, 10:10 UTCJul 23, 11:15 UTC1h 5m
2026-07-23 RPA4363 JFK → CVG Jul 23, 04:15 UTCJul 23, 04:45 UTC30m
2026-07-23 RPA4465 DCA → STL Jul 23, 01:05 UTCJul 23, 02:05 UTC1h 0m
2026-07-22 RPA4425 - Jul 22, 22:45 UTCJul 22, 23:45 UTC1h 0m
2026-07-22 RPA4723 IAH → LGA Jul 22, 17:15 UTCJul 22, 18:55 UTC1h 40m
2026-07-22 RPA4673 RIC → LGA Jul 22, 04:25 UTCJul 22, 05:25 UTC1h 0m
2026-07-21 RPA4534 ECP → ORD Jul 21, 21:25 UTCJul 21, 23:50 UTC2h 25m
2026-07-21 RPA4534 - Jul 21, 17:50 UTCJul 21, 19:35 UTC1h 45m
2026-07-21 RPA4704 - Jul 21, 14:45 UTCJul 21, 15:40 UTC55m
2026-07-21 RPA4704 SDF → ORD Jul 21, 14:40 UTCJul 21, 15:35 UTC55m
2026-07-21 RPA4704 - Jul 21, 12:55 UTCJul 21, 13:40 UTC45m
2026-07-21 RPA4419 - Jul 21, 02:30 UTCJul 21, 04:10 UTC1h 40m
2026-07-20 RPA4736 LGA → BUF Jul 20, 23:50 UTCJul 21, 01:05 UTC1h 14m
2026-07-20 RPA4736 LGA → BUF Jul 20, 23:48 UTCJul 21, 01:04 UTC1h 16m
2026-07-20 RPA4736 LGA → BUF Jul 20, 21:50 UTCJul 20, 22:50 UTC1h 0m
2026-07-20 RPA4523 LGA → MSP Jul 20, 17:50 UTCJul 20, 19:25 UTC1h 35m
2026-07-20 RPA4523 LGA → MSP Jul 20, 17:50 UTCJul 20, 19:26 UTC1h 36m
2026-07-20 RPA4523 LGA → MSP Jul 20, 15:10 UTCJul 20, 16:55 UTC1h 45m
2026-07-20 RPA4737 DCA → BOS Jul 20, 12:55 UTCJul 20, 13:50 UTC55m
2026-07-20 RPA4737 DCA → BOS Jul 20, 12:55 UTCJul 20, 13:47 UTC52m
2026-07-20 RPA4737 DCA → BOS Jul 20, 10:55 UTCJul 20, 11:50 UTC55m
2026-07-20 RPA4433 BOS → JFK Jul 20, 02:25 UTCJul 20, 03:05 UTC40m
2026-07-20 RPA4433 BOS → JFK Jul 20, 01:50 UTCJul 20, 02:20 UTC30m
2026-07-20 RPA4433 BOS → JFK Jul 20, 01:50 UTCJul 20, 03:06 UTC1h 16m
2026-07-19 RPA4585 BOS → IND Jul 19, 22:55 UTCJul 20, 01:00 UTC2h 5m

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 N421YX page for operator, model, and routing details .

Mode-S A50192 frequently asked

What is Mode-S code A50192?
A50192 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N421YX.
Where is Mode-S A50192 registered?
Mode-S code A50192 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 A50192 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A50192, octal 51200622, decimal 10,813,842.
What flights does A50192 operate?
Mode-S A50192 has broadcast 20 distinct callsigns, including RPA4729, RPA4527, RPA4491, RPA4431, RPA4676.