Apparatus

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sensors Mode-S transponder

A05470

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N120HQ · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A05470
Octal
50052160
Decimal
10,507,376
Country
US
Tail
N120HQ
Type
E75L
Transponder active on ground
Flights observed
676
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A05470.

Country allocation

The ICAO 24-bit address A05470 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
RPA4541 Republic Airlines 12 2026-06-14
RPA4808 - 10 2026-07-16
RPA4805 - 9 2026-06-21
RPA4399 - 9 2026-06-24
RPA4806 - 8 2026-06-24
RPA4496 Republic Airlines 8 2026-07-24
RPA4449 - 8 2026-06-23
RPA4413 - 8 2026-06-28
RPA4405 - 8 2026-06-22
RPA4756 Republic Airlines 7 2026-05-06
RPA4406 - 7 2026-07-05
RPA4352 - 7 2026-06-17
RPA4590 Republic Airlines 6 2026-07-26
RPA4553 - 6 2026-07-03
RPA4414 Republic Airlines 6 2026-05-25
RPA4786 Republic Airlines 5 2026-05-08
RPA4782 Republic Airlines 5 2026-06-04
RPA4780 Republic Airlines 5 2026-06-05
RPA4726 - 5 2026-06-24
RPA4701 - 5 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4572 SDF → ORD Jul 26, 21:40 UTCJul 26, 22:00 UTC20m
2026-07-26 RPA4572 SDF → ORD Jul 26, 19:50 UTCJul 26, 20:50 UTC1h 0m
2026-07-26 RPA4590 CLE → LGA Jul 26, 18:35 UTCJul 26, 18:40 UTC5m
2026-07-26 RPA4590 CLE → LGA Jul 26, 17:49 UTCJul 26, 18:16 UTC27m
2026-07-26 RPA4590 CLE → LGA Jul 26, 17:50 UTCJul 26, 18:40 UTC50m
2026-07-26 RPA4564 SDF → BOS Jul 26, 13:25 UTCJul 26, 15:55 UTC2h 30m
2026-07-25 RPA4461 JFK → ORF Jul 25, 18:24 UTCJul 25, 20:34 UTC2h 10m
2026-07-25 RPA4461 JFK → ORF Jul 25, 18:25 UTCJul 25, 20:35 UTC2h 10m
2026-07-25 RPA4502 BOS → STL Jul 25, 16:10 UTCJul 25, 16:55 UTC45m
2026-07-25 RPA4502 BOS → STL Jul 25, 14:25 UTCJul 25, 15:20 UTC55m
2026-07-25 RPA4477 DTW → LGA Jul 25, 11:30 UTCJul 25, 12:50 UTC1h 20m
2026-07-25 RPA4598 LGA → DTW Jul 25, 01:05 UTCJul 25, 02:25 UTC1h 20m
2026-07-24 RPA4506 BNA → LGA Jul 24, 22:10 UTCJul 24, 23:20 UTC1h 10m
2026-07-24 RPA4506 BNA → LGA Jul 24, 19:40 UTCJul 24, 20:55 UTC1h 15m
2026-07-24 RPA4496 LGA → BUF Jul 24, 16:50 UTCJul 24, 17:55 UTC1h 5m
2026-07-24 RPA4496 LGA → BUF Jul 24, 16:49 UTCJul 24, 17:53 UTC1h 4m
2026-07-24 RPA4496 LGA → BUF Jul 24, 14:35 UTCJul 24, 15:45 UTC1h 10m
2026-07-24 RPA4393 JFK → BOS Jul 24, 11:20 UTCJul 24, 12:05 UTC45m
2026-07-24 RPA4733 CMH → BOS Jul 24, 01:30 UTCJul 24, 03:10 UTC1h 40m
2026-07-23 RPA4733 CMH → BOS Jul 23, 23:10 UTCJul 24, 00:30 UTC1h 20m
2026-07-23 RPA4380 DCA → PWM Jul 23, 20:05 UTCJul 23, 21:25 UTC1h 20m
2026-07-23 RPA4380 DCA → PWM Jul 23, 17:20 UTCJul 23, 18:40 UTC1h 20m
2026-07-23 RPA4654 LGA → DCA Jul 23, 15:20 UTCJul 23, 16:05 UTC45m
2026-07-23 RPA4695 - Jul 23, 11:10 UTCJul 23, 13:40 UTC2h 30m
2026-07-22 RPA4554 LGA → XNA Jul 22, 22:30 UTCJul 23, 01:20 UTC2h 50m
2026-07-22 RPA4394 - Jul 22, 20:15 UTCJul 22, 21:30 UTC1h 15m
2026-07-22 RPA4394 LGA → CMH Jul 22, 17:55 UTCJul 22, 19:15 UTC1h 20m
2026-07-22 RPA4508 CVG → BOS Jul 22, 14:30 UTCJul 22, 16:20 UTC1h 50m
2026-07-22 RPA4508 CVG → BOS Jul 22, 14:25 UTCJul 22, 16:18 UTC1h 53m
2026-07-22 RPA4508 CVG → BOS Jul 22, 11:15 UTCJul 22, 13:25 UTC2h 10m
2026-07-21 RPA4347 ORD → CLE Jul 21, 16:40 UTCJul 21, 17:50 UTC1h 10m
2026-07-21 RPA4347 ORD → CLE Jul 21, 16:39 UTCJul 21, 17:44 UTC1h 5m
2026-07-21 RPA4347 ORD → CLE Jul 21, 14:10 UTCJul 21, 15:35 UTC1h 25m
2026-07-21 RPA4670 LGA → ATL Jul 21, 10:15 UTCJul 21, 11:45 UTC1h 30m
2026-07-21 RPA4667 IND → PHL Jul 21, 01:15 UTCJul 21, 02:50 UTC1h 35m
2026-07-20 RPA4471 ORF → LGA Jul 20, 22:40 UTCJul 20, 23:45 UTC1h 5m
2026-07-20 RPA4471 LGA → ORF Jul 20, 20:20 UTCJul 20, 21:15 UTC55m
2026-07-20 RPA4570 JFK → BWI Jul 20, 18:00 UTCJul 20, 18:50 UTC50m
2026-07-20 RPA4570 JFK → BWI Jul 20, 18:00 UTCJul 20, 18:49 UTC49m
2026-07-20 RPA4570 JFK → BWI Jul 20, 16:30 UTCJul 20, 17:05 UTC35m
2026-07-20 RPA4591 - Jul 20, 13:20 UTCJul 20, 15:25 UTC2h 5m
2026-07-19 RPA4593 LGA → ORF Jul 19, 23:15 UTCJul 20, 01:15 UTC2h 0m
2026-07-19 RPA4773 GSO → LGA Jul 19, 21:50 UTCJul 19, 22:52 UTC1h 2m
2026-07-19 RPA4773 GSO → LGA Jul 19, 20:20 UTCJul 19, 21:00 UTC40m
2026-07-18 RPA9949 - Jul 18, 22:30 UTCJul 18, 22:55 UTC25m
2026-07-18 RPA9949 PHL → PHL Jul 18, 22:05 UTCJul 18, 22:10 UTC5m
2026-07-18 RPA9949 PHL → PHL Jul 18, 20:05 UTCJul 18, 20:10 UTC5m
2026-07-18 RPA9949 PHL → PHL Jul 18, 19:50 UTCJul 18, 19:55 UTC5m
2026-07-18 RPA4561 PHL → PHL Jul 18, 16:30 UTCJul 18, 16:35 UTC5m
2026-07-18 RPA4561 PHL → PHL Jul 18, 16:15 UTCJul 18, 16:20 UTC5m

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 N120HQ page for operator, model, and routing details .

Mode-S A05470 frequently asked

What is Mode-S code A05470?
A05470 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N120HQ.
Where is Mode-S A05470 registered?
Mode-S code A05470 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 A05470 broadcasting right now?
Mode-S A05470 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A05470, octal 50052160, decimal 10,507,376.
What flights does A05470 operate?
Mode-S A05470 has broadcast 20 distinct callsigns, including RPA4541, RPA4808, RPA4805, RPA4399, RPA4806.