Apparatus

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sensors Mode-S transponder

A0835D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N132HQ · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A0835D
Octal
50101535
Decimal
10,519,389
Country
US
Tail
N132HQ
Type
E75L
No current signal · last broadcast 6d ago
Flights observed
646
Distinct callsigns
20
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S A0835D.

Country allocation

The ICAO 24-bit address A0835D 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
RPA4738 - 10 2026-07-03
RPA4734 Republic Airlines 9 2026-07-22
RPA4729 - 8 2026-07-10
RPA4408 - 8 2026-07-01
RPA4393 Republic Airlines 8 2026-07-20
RPA4378 Republic Airlines 8 2026-05-28
RPA4781 - 7 2026-06-15
RPA4756 - 7 2026-07-08
RPA4691 Republic Airlines 7 2026-07-21
RPA4655 Republic Airlines 7 2026-07-22
RPA4522 Republic Airlines 7 2026-07-23
RPA4789 Republic Airlines 6 2026-07-26
RPA4759 - 6 2026-06-19
RPA4704 - 6 2026-07-14
RPA4700 Republic Airlines 6 2026-07-20
RPA4666 - 6 2026-06-22
RPA4657 - 6 2026-06-27
RPA4579 - 6 2026-07-06
RPA4568 Republic Airlines 6 2026-07-22
RPA4561 Republic Airlines 6 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4773 GSO → LGA Jul 26, 19:15 UTCJul 26, 19:55 UTC40m
2026-07-26 RPA4789 JFK → ORF Jul 26, 16:55 UTCJul 26, 17:15 UTC20m
2026-07-26 RPA4789 JFK → ORF Jul 26, 16:52 UTCJul 26, 18:06 UTC1h 14m
2026-07-26 RPA4789 JFK → ORF Jul 26, 14:45 UTCJul 26, 15:55 UTC1h 10m
2026-07-26 RPA4621 BNA → PHL Jul 26, 11:30 UTCJul 26, 13:20 UTC1h 50m
2026-07-26 RPA4621 BNA → PHL Jul 26, 11:15 UTCJul 26, 13:16 UTC2h 1m
2026-07-26 RPA4335 PHL → DCA Jul 26, 03:25 UTCJul 26, 04:55 UTC1h 30m
2026-07-26 RPA4402 IND → ORD Jul 26, 00:05 UTCJul 26, 02:05 UTC2h 0m
2026-07-25 RPA4402 IND → ORD Jul 25, 20:35 UTCJul 25, 23:05 UTC2h 30m
2026-07-25 RPA4375 MCI → DCA Jul 25, 16:55 UTCJul 25, 18:55 UTC2h 0m
2026-07-25 RPA4375 MCI → DCA Jul 25, 14:45 UTCJul 25, 16:00 UTC1h 15m
2026-07-25 RPA4742 LGA → RDU Jul 25, 11:25 UTCJul 25, 13:00 UTC1h 35m
2026-07-25 RPA4540 BDL → DCA Jul 25, 01:30 UTCJul 25, 03:10 UTC1h 40m
2026-07-24 RPA4555 ATL → LGA Jul 24, 22:35 UTCJul 24, 23:50 UTC1h 15m
2026-07-24 RPA4555 ATL → LGA Jul 24, 20:25 UTCJul 24, 21:30 UTC1h 5m
2026-07-24 RPA4416 JFK → CMH Jul 24, 16:30 UTCJul 24, 18:55 UTC2h 25m
2026-07-24 RPA4416 JFK → CMH Jul 24, 13:15 UTCJul 24, 15:25 UTC2h 10m
2026-07-24 RPA4549 SDF → DCA Jul 24, 10:10 UTCJul 24, 11:30 UTC1h 20m
2026-07-24 RPA4672 JFK → CLE Jul 24, 00:00 UTCJul 24, 01:15 UTC1h 15m
2026-07-24 RPA4672 JFK → CLE Jul 24, 00:00 UTCJul 24, 01:20 UTC1h 20m
2026-07-23 RPA4773 GSO → LGA Jul 23, 21:45 UTCJul 23, 22:35 UTC50m
2026-07-23 RPA4381 BUF → ORD Jul 23, 19:15 UTCJul 23, 20:05 UTC50m
2026-07-23 RPA4381 BUF → ORD Jul 23, 17:15 UTCJul 23, 18:05 UTC50m
2026-07-23 RPA4415 ATL → LGA Jul 23, 14:50 UTCJul 23, 16:00 UTC1h 10m
2026-07-23 RPA4415 ATL → LGA Jul 23, 12:35 UTCJul 23, 14:05 UTC1h 30m
2026-07-23 RPA4522 PHL → SDF Jul 23, 10:15 UTCJul 23, 11:15 UTC1h 0m
2026-07-23 RPA4522 PHL → SDF Jul 23, 10:13 UTCJul 23, 11:00 UTC47m
2026-07-22 RPA4521 LGA → IND Jul 22, 23:55 UTCJul 23, 00:45 UTC50m
2026-07-22 RPA4655 PIT → LGA Jul 22, 21:15 UTCJul 22, 22:15 UTC1h 0m
2026-07-22 RPA4734 MEM → BOS Jul 22, 19:05 UTCJul 22, 20:10 UTC1h 5m
2026-07-22 RPA4734 MEM → BOS Jul 22, 19:01 UTCJul 22, 20:08 UTC1h 7m
2026-07-22 RPA4568 PHL → IND Jul 22, 16:35 UTCJul 22, 17:35 UTC1h 0m
2026-07-22 RPA1132 ORD → PIT Jul 22, 13:35 UTCJul 22, 14:35 UTC1h 0m
2026-07-22 RPA4512 LGA → OMA Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-22 RPA4511 OMA → LGA Jul 22, 03:35 UTCJul 22, 04:55 UTC1h 20m
2026-07-22 RPA4668 PVD → DCA Jul 22, 01:55 UTCJul 22, 02:05 UTC10m
2026-07-22 RPA4668 PVD → DCA Jul 22, 00:35 UTCJul 22, 02:05 UTC1h 30m
2026-07-22 RPA4668 PVD → DCA Jul 22, 00:33 UTCJul 22, 01:39 UTC1h 6m
2026-07-21 RPA4668 PVD → DCA Jul 21, 22:35 UTCJul 21, 23:20 UTC45m
2026-07-21 RPA4409 - Jul 21, 20:20 UTCJul 21, 21:10 UTC50m
2026-07-21 RPA4409 CVG → ORD Jul 21, 20:17 UTCJul 21, 21:07 UTC50m
2026-07-21 RPA4760 JFK → CLE Jul 21, 16:53 UTCJul 21, 19:29 UTC2h 36m
2026-07-21 RPA4760 JFK → CLE Jul 21, 16:55 UTCJul 21, 19:30 UTC2h 35m
2026-07-21 RPA4691 JFK → RIC Jul 21, 14:01 UTCJul 21, 15:08 UTC1h 7m
2026-07-21 RPA4691 JFK → RIC Jul 21, 14:05 UTCJul 21, 15:10 UTC1h 5m
2026-07-21 RPA4580 BOS → JFK Jul 21, 11:15 UTCJul 21, 12:30 UTC1h 15m
2026-07-21 RPA4541 DCA → MHT Jul 21, 01:15 UTCJul 21, 02:25 UTC1h 10m
2026-07-20 RPA4572 - Jul 20, 22:45 UTCJul 20, 23:55 UTC1h 9m
2026-07-20 RPA4572 - Jul 20, 20:45 UTCJul 20, 21:45 UTC1h 0m
2026-07-20 RPA4700 CMH → DCA Jul 20, 18:15 UTCJul 20, 19:05 UTC50m

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 N132HQ page for operator, model, and routing details .

Mode-S A0835D frequently asked

What is Mode-S code A0835D?
A0835D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N132HQ.
Where is Mode-S A0835D registered?
Mode-S code A0835D 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 A0835D broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0835D, octal 50101535, decimal 10,519,389.
What flights does A0835D operate?
Mode-S A0835D has broadcast 20 distinct callsigns, including RPA4738, RPA4734, RPA4729, RPA4408, RPA4393.