Apparatus

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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 Jul 26, 21:15 UTC
Flights observed
782
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

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
RPA4440 Republic Airlines 10 2026-07-25
RPA4728 - 9 2026-07-20
RPA4389 - 9 2026-07-16
RPA4740 - 8 2026-07-05
RPA4669 Republic Airlines 8 2026-07-21
RPA4379 - 8 2026-07-12
RPA4762 - 7 2026-06-20
RPA4711 Republic Airlines 7 2026-05-10
RPA4704 Republic Airlines 7 2026-05-10
RPA4688 - 7 2026-06-26
RPA4759 Republic Airlines 6 2026-05-15
RPA4756 Republic Airlines 6 2026-06-19
RPA4737 - 6 2026-07-17
RPA4717 - 6 2026-06-26
RPA4666 Republic Airlines 6 2026-06-09
RPA4638 Republic Airlines 6 2026-05-16
RPA4635 - 6 2026-07-16
RPA4612 Republic Airlines 6 2026-05-16
RPA4565 - 6 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4760 JFK → CLE Jul 26, 19:05 UTCJul 26, 21:00 UTC1h 55m
2026-07-26 RPA4720 MCI → LGA Jul 26, 17:15 UTCJul 26, 18:00 UTC45m
2026-07-26 RPA4413 DCA → PHL Jul 26, 14:35 UTCJul 26, 15:55 UTC1h 20m
2026-07-26 RPA4413 DCA → PHL Jul 26, 12:40 UTCJul 26, 13:50 UTC1h 10m
2026-07-25 RPA4537 RIC → LGA Jul 25, 22:25 UTCJul 25, 23:20 UTC55m
2026-07-25 RPA4537 RIC → LGA Jul 25, 22:23 UTCJul 25, 23:15 UTC52m
2026-07-25 RPA4537 RIC → LGA Jul 25, 20:30 UTCJul 25, 21:15 UTC45m
2026-07-25 RPA4455 IND → LGA Jul 25, 18:10 UTCJul 25, 19:05 UTC55m
2026-07-25 RPA4448 GRR → ORD Jul 25, 15:15 UTCJul 25, 17:25 UTC2h 10m
2026-07-25 RPA4448 GRR → ORD Jul 25, 15:11 UTCJul 25, 17:25 UTC2h 14m
2026-07-25 RPA4440 PWM → DCA Jul 25, 10:20 UTCJul 25, 12:20 UTC2h 0m
2026-07-24 RPA4644 PWM → DCA Jul 24, 23:55 UTCJul 25, 02:15 UTC2h 20m
2026-07-24 RPA4342 MEM → DCA Jul 24, 20:10 UTCJul 24, 21:35 UTC1h 25m
2026-07-24 RPA4342 MEM → DCA Jul 24, 17:25 UTCJul 24, 18:50 UTC1h 25m
2026-07-24 RPA4795 CHO → LGA Jul 24, 12:20 UTCJul 24, 14:30 UTC2h 10m
2026-07-24 RPA4795 CHO → LGA Jul 24, 12:20 UTCJul 24, 14:29 UTC2h 9m
2026-07-23 RPA4395 DCA → BDL Jul 23, 23:45 UTCJul 24, 02:20 UTC2h 35m
2026-07-23 RPA4758 JFK → DCA Jul 23, 21:30 UTCJul 23, 22:40 UTC1h 10m
2026-07-23 RPA4758 JFK → DCA Jul 23, 21:29 UTCJul 23, 22:34 UTC1h 5m
2026-07-23 RPA4453 LGA → LIT Jul 23, 19:00 UTCJul 23, 20:15 UTC1h 15m
2026-07-23 RPA4476 - Jul 23, 16:30 UTCJul 23, 17:40 UTC1h 10m
2026-07-23 RPA4476 CLE → JFK Jul 23, 16:29 UTCJul 23, 17:26 UTC57m
2026-07-23 RPA4387 - Jul 23, 14:10 UTCJul 23, 15:20 UTC1h 10m
2026-07-23 RPA4799 - Jul 23, 10:35 UTCJul 23, 11:55 UTC1h 20m
2026-07-23 RPA4641 LGA → MSP Jul 23, 02:05 UTCJul 23, 04:00 UTC1h 55m
2026-07-23 RPA4440 PWM → DCA Jul 23, 00:45 UTCJul 23, 00:55 UTC10m
2026-07-22 RPA4440 PWM → DCA Jul 22, 23:45 UTCJul 23, 00:55 UTC1h 10m
2026-07-22 RPA4440 PWM → DCA Jul 22, 23:44 UTCJul 23, 00:28 UTC44m
2026-07-22 RPA4440 PWM → DCA Jul 22, 18:15 UTCJul 22, 19:25 UTC1h 10m
2026-07-22 RPA4440 PWM → DCA Jul 22, 18:20 UTCJul 22, 19:25 UTC1h 5m
2026-07-22 RPA4399 - Jul 22, 15:05 UTCJul 22, 15:45 UTC40m
2026-07-22 RPA4399 CMH → BOS Jul 22, 15:04 UTCJul 22, 16:30 UTC1h 26m
2026-07-22 RPA4399 BOS → CMH Jul 22, 12:25 UTCJul 22, 14:10 UTC1h 45m
2026-07-21 RPA4367 DCA → PVD Jul 21, 14:55 UTCJul 21, 15:40 UTC45m
2026-07-21 RPA4669 MIA → BTV Jul 21, 11:10 UTCJul 21, 13:15 UTC2h 5m
2026-07-21 RPA4669 MIA → BTV Jul 21, 11:09 UTCJul 21, 13:11 UTC2h 2m
2026-07-20 RPA4728 LGA → STL Jul 20, 23:41 UTCJul 21, 01:47 UTC2h 6m
2026-07-20 RPA4728 LGA → STL Jul 20, 23:40 UTCJul 21, 01:45 UTC2h 5m
2026-07-20 RPA4655 PIT → LGA Jul 20, 21:15 UTCJul 20, 22:10 UTC55m
2026-07-20 RPA4796 - Jul 20, 19:15 UTCJul 20, 19:45 UTC30m
2026-07-20 RPA4796 DCA → PIT Jul 20, 19:14 UTCJul 20, 19:43 UTC29m
2026-07-20 RPA4574 - Jul 20, 16:25 UTCJul 20, 17:40 UTC1h 15m
2026-07-20 RPA4567 PHL → MVY Jul 20, 14:45 UTCJul 20, 15:30 UTC45m
2026-07-20 RPA4750 - Jul 20, 11:45 UTCJul 20, 13:15 UTC1h 30m
2026-07-19 RPA4672 DCA → SDF Jul 19, 23:55 UTCJul 20, 01:10 UTC1h 15m
2026-07-19 RPA424 LGA → DCA Jul 19, 21:50 UTCJul 19, 22:55 UTC1h 5m
2026-07-19 RPA4375 BOS → LGA Jul 19, 19:40 UTCJul 19, 20:30 UTC50m
2026-07-19 RPA4375 BOS → LGA Jul 19, 19:40 UTCJul 19, 20:15 UTC35m
2026-07-19 RPA4375 LGA → BNH Jul 19, 17:35 UTCJul 19, 18:15 UTC40m
2026-07-19 RPA4795 - Jul 19, 12:10 UTCJul 19, 13:45 UTC1h 35m

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 Jul 26, 21:15 UTC.
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, RPA4440, RPA4728, RPA4389, RPA4740.