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 10h ago
Flights observed
342
Distinct callsigns
20
Country
US
Last broadcast
10h 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 Republic Airlines 8 2026-06-03
RPA4378 Republic Airlines 8 2026-05-28
RPA4781 Republic Airlines 6 2026-05-18
RPA4734 - 6 2026-06-12
RPA4561 Republic Airlines 6 2026-06-08
RPA4551 Republic Airlines 6 2026-05-28
RPA4756 Republic Airlines 5 2026-05-19
RPA4713 Republic Airlines 5 2026-05-18
RPA4691 Republic Airlines 5 2026-06-03
RPA4655 Republic Airlines 5 2026-05-31
RPA4522 Republic Airlines 5 2026-06-13
RPA4759 Republic Airlines 4 2026-06-07
RPA4657 Republic Airlines 4 2026-05-03
RPA4595 Republic Airlines 4 2026-05-07
RPA4579 Republic Airlines 4 2026-06-12
RPA4553 Republic Airlines 4 2026-05-20
RPA4503 Republic Airlines 4 2026-05-18
RPA4496 Republic Airlines 4 2026-06-02
RPA4462 Republic Airlines 4 2026-05-23
RPA4782 Republic Airlines 3 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-13 RPA4489 AGS → LGA Jun 13, 20:10 UTCJun 13, 21:35 UTC1h 25m
2026-06-13 RPA4497 PIT → PHL Jun 13, 17:35 UTCJun 13, 18:45 UTC1h 10m
2026-06-13 RPA4522 PHL → SDF Jun 13, 14:20 UTCJun 13, 15:15 UTC55m
2026-06-13 RPA4522 PHL → SDF Jun 13, 14:15 UTCJun 13, 15:13 UTC58m
2026-06-12 RPA9942 BNA → IND Jun 12, 20:55 UTCJun 12, 21:30 UTC35m
2026-06-12 RPA4734 - Jun 12, 18:55 UTCJun 12, 20:00 UTC1h 5m
2026-06-12 RPA4734 JFK → PIT Jun 12, 18:55 UTCJun 12, 19:58 UTC1h 3m
2026-06-12 RPA4568 PHL → IND Jun 12, 16:45 UTCJun 12, 17:50 UTC1h 5m
2026-06-12 RPA4568 PHL → IND Jun 12, 16:44 UTCJun 12, 17:50 UTC1h 6m
2026-06-12 RPA4579 ATL → LGA Jun 12, 14:50 UTCJun 12, 15:45 UTC55m
2026-06-12 RPA4579 ATL → LGA Jun 12, 14:50 UTCJun 12, 15:44 UTC54m
2026-06-12 RPA4377 GSO → LGA Jun 12, 12:25 UTCJun 12, 13:15 UTC50m
2026-06-12 RPA4377 GSO → LGA Jun 12, 10:55 UTCJun 12, 11:40 UTC45m
2026-06-11 RPA4697 BTV → DCA Jun 11, 19:45 UTCJun 11, 21:10 UTC1h 25m
2026-06-11 RPA4697 BTV → DCA Jun 11, 17:10 UTCJun 11, 18:35 UTC1h 25m
2026-06-11 RPA4483 RDU → LGA Jun 11, 15:15 UTCJun 11, 16:15 UTC1h 0m
2026-06-11 RPA4483 RDU → LGA Jun 11, 12:50 UTCJun 11, 13:45 UTC55m
2026-06-11 RPA4396 PWM → PHL Jun 11, 11:10 UTCJun 11, 11:55 UTC45m
2026-06-11 RPA9773 IND → LGA Jun 11, 01:10 UTCJun 11, 02:55 UTC1h 45m
2026-06-10 RPA4429 JFK → RDU Jun 10, 21:15 UTCJun 10, 22:20 UTC1h 5m
2026-06-10 RPA4501 IND → DCA Jun 10, 18:10 UTCJun 10, 19:05 UTC55m
2026-06-10 RPA4501 IND → DCA Jun 10, 15:40 UTCJun 10, 16:35 UTC55m
2026-06-10 RPA4795 CHO → LGA Jun 10, 12:20 UTCJun 10, 14:35 UTC2h 15m
2026-06-10 RPA4406 PVD → DCA Jun 10, 01:10 UTCJun 10, 03:20 UTC2h 10m
2026-06-09 RPA4780 PHL → CMH Jun 9, 21:20 UTCJun 10, 00:20 UTC3h 0m
2026-06-09 RPA4780 PHL → CMH Jun 9, 11:10 UTCJun 9, 14:10 UTC3h 0m
2026-06-09 RPA4782 AVL → BOS Jun 9, 00:05 UTCJun 9, 02:20 UTC2h 15m
2026-06-08 RPA4782 AVL → BOS Jun 8, 21:15 UTCJun 8, 23:25 UTC2h 10m
2026-06-08 RPA4561 CMH → LGA Jun 8, 18:10 UTCJun 8, 20:05 UTC1h 55m
2026-06-08 RPA4561 CMH → LGA Jun 8, 18:05 UTCJun 8, 20:03 UTC1h 58m
2026-06-08 RPA4561 CMH → LGA Jun 8, 15:00 UTCJun 8, 16:40 UTC1h 40m
2026-06-08 RPA4750 SDF → PHL Jun 8, 11:50 UTCJun 8, 13:25 UTC1h 35m
2026-06-08 RPA4750 SDF → PHL Jun 8, 11:49 UTCJun 8, 13:04 UTC1h 15m
2026-06-08 RPA4603 ORD → SDF Jun 8, 02:40 UTCJun 8, 03:25 UTC45m
2026-06-07 RPA4759 ORD → TVC Jun 7, 22:45 UTCJun 8, 00:20 UTC1h 35m
2026-06-07 RPA4759 ORD → TVC Jun 7, 20:00 UTCJun 7, 21:40 UTC1h 40m
2026-06-07 RPA4478 IAH → PHL Jun 7, 15:55 UTCJun 7, 17:05 UTC1h 10m
2026-06-07 RPA4478 IAH → PHL Jun 7, 13:40 UTCJun 7, 14:45 UTC1h 5m
2026-06-07 RPA4512 LGA → OMA Jun 7, 10:15 UTCJun 7, 12:00 UTC1h 45m
2026-06-07 RPA4511 OMA → LGA Jun 7, 02:45 UTCJun 7, 04:10 UTC1h 25m
2026-06-07 RPA4729 CHS → DCA Jun 7, 00:44 UTCJun 7, 01:24 UTC40m
2026-06-07 RPA4729 CHS → DCA Jun 7, 00:42 UTCJun 7, 01:16 UTC34m
2026-06-06 RPA4729 CHS → DCA Jun 6, 23:39 UTCJun 7, 00:10 UTC30m
2026-06-06 RPA4759 ORD → TVC Jun 6, 20:00 UTCJun 6, 22:00 UTC2h 0m
2026-06-06 RPA4759 ORD → TVC Jun 6, 17:00 UTCJun 6, 18:25 UTC1h 25m
2026-06-06 RPA4450 PIT → PHL Jun 6, 12:20 UTCJun 6, 14:20 UTC2h 0m
2026-06-06 RPA4805 BOS → ORD Jun 6, 09:24 UTCJun 6, 10:30 UTC1h 5m
2026-06-06 RPA4573 RDU → LGA Jun 6, 02:35 UTCJun 6, 03:45 UTC1h 10m
2026-06-05 RPA4389 DCA → PVD Jun 5, 21:20 UTCJun 5, 22:40 UTC1h 20m
2026-06-05 RPA4389 DCA → PVD Jun 5, 21:18 UTCJun 5, 22:39 UTC1h 21m

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 10h 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, RPA4378, RPA4781, RPA4734, RPA4561.