Apparatus

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sensors Mode-S transponder

A0232A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N108HQ · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A0232A
Octal
50021452
Decimal
10,494,762
Country
US
Tail
N108HQ
Type
E75L
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
781
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A0232A.

Country allocation

The ICAO 24-bit address A0232A 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
RPA4647 Republic Airlines 11 2026-07-25
RPA4717 - 10 2026-07-03
RPA4704 Republic Airlines 9 2026-07-03
RPA4508 Republic Airlines 9 2026-05-20
RPA4453 - 9 2026-06-20
RPA4521 Republic Airlines 8 2026-04-17
RPA4444 - 8 2026-07-02
RPA4392 Republic Airlines 8 2026-06-09
RPA4804 Republic Airlines 7 2026-07-08
RPA4745 - 7 2026-07-12
RPA4724 - 7 2026-07-04
RPA4668 Republic Airlines 7 2026-07-26
RPA4391 - 7 2026-07-07
RPA4389 Republic Airlines 7 2026-05-28
RPA4768 - 6 2026-06-26
RPA4748 Republic Airlines 6 2026-07-26
RPA4716 - 6 2026-06-27
RPA4575 - 6 2026-06-22
RPA4572 Republic Airlines 6 2026-07-05
RPA4477 - 6 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4668 PVD → DCA Jul 26, 21:45 UTCJul 26, 22:30 UTC45m
2026-07-26 RPA4748 DCA → ACK Jul 26, 17:40 UTCJul 26, 19:50 UTC2h 10m
2026-07-26 RPA4748 DCA → ACK Jul 26, 14:50 UTCJul 26, 16:35 UTC1h 45m
2026-07-26 RPA4683 LGA → CHO Jul 26, 10:45 UTCJul 26, 12:35 UTC1h 50m
2026-07-26 RPA4510 CMH → PHL Jul 26, 03:30 UTCJul 26, 05:05 UTC1h 35m
2026-07-26 RPA4510 CMH → PHL Jul 26, 03:25 UTCJul 26, 05:01 UTC1h 36m
2026-07-25 RPA4621 BNA → PHL Jul 25, 22:05 UTCJul 26, 00:10 UTC2h 5m
2026-07-25 RPA4621 BNA → PHL Jul 25, 18:35 UTCJul 25, 20:35 UTC2h 0m
2026-07-25 RPA4647 RDU → LGA Jul 25, 15:40 UTCJul 25, 17:05 UTC1h 25m
2026-07-25 RPA4647 RDU → LGA Jul 25, 15:35 UTCJul 25, 17:03 UTC1h 28m
2026-07-25 RPA4647 RDU → LGA Jul 25, 13:25 UTCJul 25, 14:35 UTC1h 10m
2026-07-25 RPA4597 CMH → BOS Jul 25, 10:55 UTCJul 25, 11:35 UTC40m
2026-07-24 RPA4517 IAH → PHL Jul 24, 21:20 UTCJul 24, 22:40 UTC1h 20m
2026-07-24 RPA4557 DCA → BDL Jul 24, 18:55 UTCJul 24, 20:15 UTC1h 20m
2026-07-24 RPA4557 DCA → BDL Jul 24, 16:20 UTCJul 24, 17:25 UTC1h 5m
2026-07-24 RPA4393 JFK → BOS Jul 24, 13:35 UTCJul 24, 14:20 UTC45m
2026-07-24 RPA4451 RIC → LGA Jul 24, 10:15 UTCJul 24, 11:05 UTC50m
2026-07-24 RPA4345 BOS → IND Jul 24, 01:50 UTCJul 24, 02:40 UTC50m
2026-07-24 RPA4345 BOS → IND Jul 24, 01:47 UTCJul 24, 02:39 UTC52m
2026-07-23 RPA4524 MSP → LGA Jul 23, 21:50 UTCJul 24, 00:35 UTC2h 45m
2026-07-23 RPA4524 MSP → LGA Jul 23, 17:55 UTCJul 23, 20:35 UTC2h 40m
2026-07-23 RPA4422 - Jul 23, 15:10 UTCJul 23, 16:35 UTC1h 25m
2026-07-23 RPA4422 - Jul 23, 12:40 UTCJul 23, 14:15 UTC1h 35m
2026-07-23 RPA4677 DCA → ALB Jul 23, 09:25 UTCJul 23, 10:25 UTC1h 0m
2026-07-23 RPA4677 DCA → ALB Jul 23, 09:23 UTCJul 23, 10:25 UTC1h 2m
2026-07-23 RPA4722 DTW → PHL Jul 23, 02:10 UTCJul 23, 03:20 UTC1h 10m
2026-07-23 RPA4702 GSP → PHL Jul 23, 00:15 UTCJul 23, 01:15 UTC1h 0m
2026-07-22 RPA4700 CMH → DCA Jul 22, 21:45 UTCJul 22, 22:25 UTC40m
2026-07-22 RPA4756 SDF → BOS Jul 22, 14:45 UTCJul 22, 16:10 UTC1h 25m
2026-07-22 RPA4683 LGA → CHO Jul 22, 11:20 UTCJul 22, 13:05 UTC1h 45m
2026-07-22 RPA4335 PHL → DCA Jul 22, 00:10 UTCJul 22, 00:40 UTC30m
2026-07-21 RPA4654 LGA → DCA Jul 21, 16:35 UTCJul 21, 17:20 UTC45m
2026-07-21 RPA4654 LGA → DCA Jul 21, 16:32 UTCJul 21, 17:18 UTC46m
2026-07-21 RPA4695 - Jul 21, 11:20 UTCJul 21, 14:00 UTC2h 40m
2026-07-20 RPA4554 LGA → XNA Jul 20, 23:35 UTCJul 21, 02:10 UTC2h 34m
2026-07-20 RPA4348 BGR → LGA Jul 20, 21:10 UTCJul 20, 22:15 UTC1h 5m
2026-07-20 RPA4348 BGR → LGA Jul 20, 21:10 UTCJul 20, 22:19 UTC1h 9m
2026-07-20 RPA4348 LGA → BGR Jul 20, 19:05 UTCJul 20, 20:05 UTC1h 0m
2026-07-20 RPA4364 MSP → PHL Jul 20, 16:05 UTCJul 20, 16:30 UTC25m
2026-07-20 RPA4364 MSP → PHL Jul 20, 16:02 UTCJul 20, 18:05 UTC2h 3m
2026-07-20 RPA4364 MSP → PHL Jul 20, 13:15 UTCJul 20, 15:00 UTC1h 45m
2026-07-20 RPA4477 - Jul 20, 10:10 UTCJul 20, 11:20 UTC1h 10m
2026-07-20 RPA4477 DTW → LGA Jul 20, 10:06 UTCJul 20, 11:19 UTC1h 13m
2026-07-20 RPA4598 LGA → DTW Jul 20, 01:30 UTCJul 20, 02:50 UTC1h 20m
2026-07-19 RPA4421 MSY → PHL Jul 19, 22:35 UTCJul 19, 23:45 UTC1h 10m
2026-07-19 RPA4421 MSY → PHL Jul 19, 22:29 UTCJul 19, 23:39 UTC1h 10m
2026-07-19 RPA4421 MSY → PHL Jul 19, 20:10 UTCJul 19, 21:30 UTC1h 20m
2026-07-19 RPA4620 - Jul 19, 16:05 UTCJul 19, 18:25 UTC2h 20m
2026-07-19 RPA4620 LGA → XNA Jul 19, 12:00 UTCJul 19, 14:35 UTC2h 35m
2026-07-18 RPA4542 YYZ → LGA Jul 18, 11:55 UTCJul 18, 13:00 UTC1h 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 N108HQ page for operator, model, and routing details .

Mode-S A0232A frequently asked

What is Mode-S code A0232A?
A0232A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N108HQ.
Where is Mode-S A0232A registered?
Mode-S code A0232A 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 A0232A 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 A0232A, octal 50021452, decimal 10,494,762.
What flights does A0232A operate?
Mode-S A0232A has broadcast 20 distinct callsigns, including RPA4647, RPA4717, RPA4704, RPA4508, RPA4453.