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sensors Mode-S transponder

A50CB7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N424YX · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A50CB7
Octal
51206267
Decimal
10,816,695
Country
US
Tail
N424YX
Type
E75L
No current signal · last broadcast 2h ago
Flights observed
696
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A50CB7.

Country allocation

The ICAO 24-bit address A50CB7 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
RPA4676 - 10 2026-07-07
RPA4740 - 8 2026-07-05
RPA4379 - 8 2026-07-12
RPA4762 - 7 2026-06-20
RPA4728 Republic Airlines 7 2026-05-28
RPA4711 Republic Airlines 7 2026-05-10
RPA4704 Republic Airlines 7 2026-05-10
RPA4688 - 7 2026-06-26
RPA4389 - 7 2026-06-23
RPA4759 Republic Airlines 6 2026-05-15
RPA4756 Republic Airlines 6 2026-06-19
RPA4717 - 6 2026-06-26
RPA4669 Republic Airlines 6 2026-05-29
RPA4666 Republic Airlines 6 2026-06-09
RPA4638 Republic Airlines 6 2026-05-16
RPA4612 Republic Airlines 6 2026-05-16
RPA4565 - 6 2026-06-29
RPA4500 - 6 2026-07-04
RPA4407 Republic Airlines 6 2026-05-26
RPA4352 - 6 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RPA4372 - Jul 14, 19:05 UTCJul 14, 19:45 UTC40m
2026-07-14 RPA4343 BGR → LGA Jul 14, 16:25 UTCJul 14, 17:25 UTC1h 0m
2026-07-14 RPA4343 LGA → BGR Jul 14, 14:20 UTCJul 14, 15:25 UTC1h 5m
2026-07-14 RPA4604 - Jul 14, 11:35 UTCJul 14, 13:05 UTC1h 30m
2026-07-14 RPA4604 CMH → LGA Jul 14, 11:33 UTCJul 14, 12:52 UTC1h 19m
2026-07-13 RPA4462 LGA → CMH Jul 13, 21:50 UTCJul 13, 23:05 UTC1h 15m
2026-07-13 RPA4773 - Jul 13, 19:05 UTCJul 13, 19:50 UTC45m
2026-07-13 RPA4754 - Jul 13, 16:25 UTCJul 13, 17:20 UTC55m
2026-07-13 RPA4754 - Jul 13, 14:15 UTCJul 13, 15:10 UTC55m
2026-07-13 RPA4491 LGA → DCA Jul 13, 12:10 UTCJul 13, 12:55 UTC45m
2026-07-13 RPA4677 - Jul 13, 09:30 UTCJul 13, 10:40 UTC1h 10m
2026-07-13 RPA4722 LGA → CLE Jul 13, 01:20 UTCJul 13, 02:30 UTC1h 10m
2026-07-12 RPA4588 - Jul 12, 22:00 UTCJul 13, 00:15 UTC2h 15m
2026-07-12 RPA4588 - Jul 12, 19:15 UTCJul 12, 20:55 UTC1h 40m
2026-07-12 RPA4379 - Jul 12, 16:40 UTCJul 12, 17:50 UTC1h 10m
2026-07-12 RPA4379 BUF → LGA Jul 12, 16:38 UTCJul 12, 17:47 UTC1h 9m
2026-07-12 RPA4379 LGA → BUF Jul 12, 14:50 UTCJul 12, 15:40 UTC50m
2026-07-12 RPA4477 YQG → LGA Jul 12, 12:10 UTCJul 12, 13:20 UTC1h 10m
2026-07-11 RPA4630 LGA → DTW Jul 11, 21:35 UTCJul 11, 23:00 UTC1h 25m
2026-07-11 RPA4773 DCA → LGA Jul 11, 19:30 UTCJul 11, 20:25 UTC55m
2026-07-11 RPA4574 - Jul 11, 16:35 UTCJul 11, 17:45 UTC1h 10m
2026-07-11 RPA4567 PHL → MVY Jul 11, 15:00 UTCJul 11, 15:45 UTC45m
2026-07-11 RPA4750 SDF → PHL Jul 11, 11:42 UTCJul 11, 13:12 UTC1h 30m
2026-07-11 RPA4672 - Jul 11, 03:35 UTCJul 11, 03:45 UTC10m
2026-07-11 RPA4672 DCA → SDF Jul 11, 03:34 UTCJul 11, 04:50 UTC1h 16m
2026-07-11 RPA4572 PHL → DCA Jul 11, 01:55 UTCJul 11, 02:30 UTC35m
2026-07-10 RPA4572 - Jul 10, 21:40 UTCJul 10, 23:20 UTC1h 40m
2026-07-10 RPA4572 DCA → MVY Jul 10, 20:00 UTCJul 10, 20:55 UTC55m
2026-07-10 RPA4700 - Jul 10, 18:20 UTCJul 10, 19:00 UTC40m
2026-07-10 RPA4700 DCA → RDU Jul 10, 15:35 UTCJul 10, 16:15 UTC40m
2026-07-10 RPA4737 - Jul 10, 12:55 UTCJul 10, 13:45 UTC50m
2026-07-10 RPA4737 DCA → CLE Jul 10, 10:50 UTCJul 10, 11:45 UTC55m
2026-07-10 RPA4402 - Jul 10, 00:45 UTCJul 10, 01:55 UTC1h 10m
2026-07-09 RPA4402 DCA → CMH Jul 9, 22:50 UTCJul 9, 23:40 UTC50m
2026-07-09 RPA4523 MSN → DCA Jul 9, 18:15 UTCJul 9, 20:30 UTC2h 15m
2026-07-09 RPA4523 DCA → MSN Jul 9, 15:10 UTCJul 9, 17:05 UTC1h 55m
2026-07-09 RPA4737 - Jul 9, 13:00 UTCJul 9, 13:50 UTC50m
2026-07-09 RPA4737 - Jul 9, 10:55 UTCJul 9, 11:50 UTC55m
2026-07-09 RPA4733 ATL → DCA Jul 9, 00:40 UTCJul 9, 02:10 UTC1h 30m
2026-07-08 RPA4733 DCA → ATL Jul 8, 22:00 UTCJul 8, 23:20 UTC1h 20m
2026-07-08 RPA4340 - Jul 8, 19:20 UTCJul 8, 20:50 UTC1h 30m
2026-07-08 RPA4340 - Jul 8, 16:50 UTCJul 8, 18:25 UTC1h 35m
2026-07-08 RPA4434 - Jul 8, 14:00 UTCJul 8, 15:30 UTC1h 30m
2026-07-08 RPA4439 - Jul 8, 11:55 UTCJul 8, 12:30 UTC35m
2026-07-08 RPA4439 ORD → IND Jul 8, 11:54 UTCJul 8, 12:27 UTC33m
2026-07-08 RPA4487 - Jul 8, 09:40 UTCJul 8, 10:40 UTC1h 0m
2026-07-08 RPA4445 YYZ → LGA Jul 8, 02:15 UTCJul 8, 03:00 UTC45m
2026-07-07 RPA4465 - Jul 7, 23:40 UTCJul 8, 00:40 UTC1h 0m
2026-07-07 RPA4425 ORD → MSP Jul 7, 21:40 UTCJul 7, 22:45 UTC1h 5m
2026-07-07 RPA4425 ORD → MSP Jul 7, 21:40 UTCJul 7, 22:43 UTC1h 3m

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 N424YX page for operator, model, and routing details .

Mode-S A50CB7 frequently asked

What is Mode-S code A50CB7?
A50CB7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N424YX.
Where is Mode-S A50CB7 registered?
Mode-S code A50CB7 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 A50CB7 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A50CB7, octal 51206267, decimal 10,816,695.
What flights does A50CB7 operate?
Mode-S A50CB7 has broadcast 20 distinct callsigns, including RPA4676, RPA4740, RPA4379, RPA4762, RPA4728.