Apparatus

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sensors Mode-S transponder

A01097

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N103HQ · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A01097
Octal
50010227
Decimal
10,490,007
Country
US
Tail
N103HQ
Type
E75L
Transponder active on ground
Flights observed
659
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A01097.

Country allocation

The ICAO 24-bit address A01097 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
RPA4780 Republic Airlines 8 2026-06-10
RPA4565 Republic Airlines 8 2026-06-08
RPA4478 - 8 2026-06-26
RPA4768 - 7 2026-07-09
RPA4456 Republic Airlines 7 2026-05-30
RPA4426 - 7 2026-06-26
RPA4421 Republic Airlines 7 2026-06-16
RPA4773 - 6 2026-06-20
RPA4697 - 6 2026-06-17
RPA4680 Republic Airlines 6 2026-06-09
RPA4678 - 6 2026-06-30
RPA4676 - 6 2026-07-12
RPA4613 Republic Airlines 6 2026-05-19
RPA4524 - 6 2026-07-04
RPA4506 Republic Airlines 6 2026-06-07
RPA4496 Republic Airlines 6 2026-06-18
RPA4415 - 6 2026-06-24
RPA4375 - 6 2026-07-10
RPA4808 - 5 2026-06-19
RPA4782 Republic Airlines 5 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RPA4500 - Jul 14, 16:30 UTCJul 14, 18:00 UTC1h 30m
2026-07-14 RPA4500 - Jul 14, 13:25 UTCJul 14, 15:00 UTC1h 35m
2026-07-14 RPA4427 - Jul 14, 11:05 UTCJul 14, 12:05 UTC1h 0m
2026-07-14 RPA4427 PIT → ORD Jul 14, 11:00 UTCJul 14, 12:04 UTC1h 4m
2026-07-14 RPA4763 - Jul 14, 00:55 UTCJul 14, 01:30 UTC35m
2026-07-13 RPA4495 BNA → DCA Jul 13, 22:10 UTCJul 13, 23:30 UTC1h 20m
2026-07-13 RPA4710 JFK → BNA Jul 13, 19:07 UTCJul 13, 21:00 UTC1h 53m
2026-07-13 RPA4710 - Jul 13, 19:10 UTCJul 13, 21:00 UTC1h 50m
2026-07-13 RPA4765 - Jul 13, 16:45 UTCJul 13, 17:50 UTC1h 5m
2026-07-13 RPA4354 - Jul 13, 13:40 UTCJul 13, 15:15 UTC1h 35m
2026-07-13 RPA4512 - Jul 13, 10:20 UTCJul 13, 11:40 UTC1h 20m
2026-07-13 RPA4511 ORD → CHA Jul 13, 02:20 UTCJul 13, 03:30 UTC1h 10m
2026-07-12 RPA4668 - Jul 12, 23:25 UTCJul 13, 00:35 UTC1h 10m
2026-07-12 RPA4668 - Jul 12, 21:15 UTCJul 12, 22:05 UTC50m
2026-07-12 RPA4676 - Jul 12, 18:50 UTCJul 12, 19:45 UTC55m
2026-07-12 RPA4676 DSM → ORD Jul 12, 18:47 UTCJul 12, 19:40 UTC53m
2026-07-12 RPA4676 - Jul 12, 16:40 UTCJul 12, 17:30 UTC50m
2026-07-12 RPA4633 - Jul 12, 13:15 UTCJul 12, 14:55 UTC1h 40m
2026-07-12 RPA4573 JFK → RDU Jul 12, 02:50 UTCJul 12, 04:01 UTC1h 10m
2026-07-11 RPA4390 BOS → JFK Jul 11, 23:48 UTCJul 12, 00:45 UTC57m
2026-07-11 RPA4390 BOS → JFK Jul 11, 23:50 UTCJul 12, 01:00 UTC1h 10m
2026-07-11 RPA4368 - Jul 11, 19:45 UTCJul 11, 21:40 UTC1h 55m
2026-07-10 RPA4793 LGA → IND Jul 10, 22:50 UTCJul 11, 00:30 UTC1h 40m
2026-07-10 RPA4793 LGA → IND Jul 10, 22:50 UTCJul 11, 00:35 UTC1h 45m
2026-07-10 RPA4375 BOS → LGA Jul 10, 18:30 UTCJul 10, 19:15 UTC45m
2026-07-10 RPA4375 LGA → BOS Jul 10, 16:30 UTCJul 10, 17:05 UTC35m
2026-07-10 RPA4491 JPN → LGA Jul 10, 14:10 UTCJul 10, 14:50 UTC40m
2026-07-10 RPA4491 DCA → LGA Jul 10, 14:10 UTCJul 10, 14:52 UTC42m
2026-07-10 RPA4491 LGA → DCA Jul 10, 12:15 UTCJul 10, 13:00 UTC45m
2026-07-10 RPA4677 - Jul 10, 09:40 UTCJul 10, 10:45 UTC1h 5m
2026-07-09 RPA9690 MHT → CLT Jul 9, 22:15 UTCJul 9, 23:15 UTC1h 0m
2026-07-09 RPA4753 - Jul 9, 16:45 UTCJul 9, 18:00 UTC1h 15m
2026-07-09 RPA4393 LGA → DCA Jul 9, 14:25 UTCJul 9, 15:30 UTC1h 5m
2026-07-09 RPA4396 PWM → PHL Jul 9, 11:30 UTCJul 9, 12:10 UTC40m
2026-07-09 RPA4768 LGA → BOS Jul 9, 01:20 UTCJul 9, 01:55 UTC35m
2026-07-08 RPA4461 - Jul 8, 21:40 UTCJul 8, 23:55 UTC2h 15m
2026-07-08 RPA4461 - Jul 8, 18:20 UTCJul 8, 20:30 UTC2h 10m
2026-07-08 RPA4645 DCA → LGA Jul 8, 16:10 UTCJul 8, 16:50 UTC40m
2026-07-08 RPA4618 - Jul 8, 13:40 UTCJul 8, 14:55 UTC1h 15m
2026-07-08 RPA4618 DCA → SAV Jul 8, 11:05 UTCJul 8, 12:25 UTC1h 20m
2026-07-08 RPA4433 - Jul 8, 01:15 UTCJul 8, 02:25 UTC1h 10m
2026-07-07 RPA4802 DCA → IND Jul 7, 18:55 UTCJul 7, 20:15 UTC1h 20m
2026-07-07 RPA4809 JFK → CVG Jul 7, 16:00 UTCJul 7, 17:25 UTC1h 25m
2026-07-07 RPA4360 - Jul 7, 12:35 UTCJul 7, 14:10 UTC1h 35m
2026-07-07 RPA4529 PIT → DCA Jul 7, 10:25 UTCJul 7, 11:15 UTC50m
2026-07-07 RPA4529 PIT → DCA Jul 7, 10:25 UTCJul 7, 11:13 UTC48m
2026-07-06 RPA4763 DCA → PIT Jul 6, 04:40 UTCJul 6, 05:20 UTC40m
2026-07-06 RPA4763 DCA → PIT Jul 6, 04:37 UTCJul 6, 05:38 UTC1h 1m
2026-07-05 RPA4495 BNA → DCA Jul 5, 22:45 UTCJul 6, 00:15 UTC1h 30m
2026-07-05 RPA4495 BNA → DCA Jul 5, 22:41 UTCJul 6, 00:07 UTC1h 26m

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 N103HQ page for operator, model, and routing details .

Mode-S A01097 frequently asked

What is Mode-S code A01097?
A01097 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N103HQ.
Where is Mode-S A01097 registered?
Mode-S code A01097 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 A01097 broadcasting right now?
Mode-S A01097 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 A01097, octal 50010227, decimal 10,490,007.
What flights does A01097 operate?
Mode-S A01097 has broadcast 20 distinct callsigns, including RPA4780, RPA4565, RPA4478, RPA4768, RPA4456.