Apparatus

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sensors Mode-S transponder

A07228

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N128HQ · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A07228
Octal
50071050
Decimal
10,514,984
Country
US
Tail
N128HQ
Type
E75L
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
742
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A07228.

Country allocation

The ICAO 24-bit address A07228 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
RPA4759 Republic Airlines 17 2026-07-17
RPA4746 Republic Airlines 13 2026-07-25
RPA4426 Republic Airlines 12 2026-05-17
RPA4540 Republic Airlines 11 2026-04-28
RPA4413 - 10 2026-07-17
RPA4745 - 9 2026-06-25
RPA4412 Republic Airlines 9 2026-07-23
RPA4697 - 8 2026-07-19
RPA4628 - 8 2026-07-14
RPA4500 - 8 2026-06-25
RPA4466 - 8 2026-07-06
RPA4776 Republic Airlines 7 2026-05-17
RPA4723 Republic Airlines 7 2026-07-26
RPA4652 - 7 2026-07-05
RPA4579 - 7 2026-07-03
RPA4431 - 7 2026-07-01
RPA4364 - 7 2026-07-13
RPA4773 Republic Airlines 6 2026-07-20
RPA4735 Republic Airlines 6 2026-06-10
RPA4673 Republic Airlines 6 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4617 SDF → PHL Jul 26, 21:30 UTCJul 26, 22:00 UTC30m
2026-07-26 RPA4767 JFK → CMH Jul 26, 19:05 UTCJul 26, 20:20 UTC1h 15m
2026-07-26 RPA4765 JFK → CLE Jul 26, 16:30 UTCJul 26, 17:40 UTC1h 10m
2026-07-26 RPA4765 JFK → CLE Jul 26, 16:29 UTCJul 26, 17:39 UTC1h 10m
2026-07-26 RPA4354 PHL → SDF Jul 26, 13:35 UTCJul 26, 15:05 UTC1h 30m
2026-07-26 RPA4723 IAH → LGA Jul 26, 10:05 UTCJul 26, 11:30 UTC1h 25m
2026-07-26 RPA4673 RIC → LGA Jul 26, 02:35 UTCJul 26, 03:45 UTC1h 10m
2026-07-26 RPA4673 RIC → LGA Jul 26, 02:31 UTCJul 26, 03:45 UTC1h 14m
2026-07-25 RPA4725 IND → BOS Jul 25, 22:00 UTCJul 26, 00:00 UTC2h 0m
2026-07-25 RPA4725 IND → BOS Jul 25, 21:55 UTCJul 25, 23:57 UTC2h 2m
2026-07-25 RPA4725 IND → BOS Jul 25, 18:50 UTCJul 25, 20:40 UTC1h 50m
2026-07-25 RPA4746 LGA → ORF Jul 25, 15:50 UTCJul 25, 17:20 UTC1h 30m
2026-07-25 RPA4746 LGA → ORF Jul 25, 15:47 UTCJul 25, 17:18 UTC1h 31m
2026-07-25 RPA4746 LGA → ORF Jul 25, 13:30 UTCJul 25, 14:50 UTC1h 20m
2026-07-25 RPA4651 JFK → ORF Jul 25, 10:10 UTCJul 25, 11:40 UTC1h 30m
2026-07-25 RPA4640 JFK → PIT Jul 25, 02:35 UTCJul 25, 03:45 UTC1h 10m
2026-07-24 RPA4400 PVD → DCA Jul 24, 22:25 UTCJul 25, 00:30 UTC2h 5m
2026-07-24 RPA4400 PVD → DCA Jul 24, 19:30 UTCJul 24, 21:15 UTC1h 45m
2026-07-24 RPA4643 PWM → PHL Jul 24, 16:10 UTCJul 24, 17:55 UTC1h 45m
2026-07-24 RPA4643 PWM → PHL Jul 24, 13:15 UTCJul 24, 15:00 UTC1h 45m
2026-07-24 RPA4723 IAH → LGA Jul 24, 10:10 UTCJul 24, 11:40 UTC1h 30m
2026-07-24 RPA4673 RIC → LGA Jul 24, 01:35 UTCJul 24, 02:55 UTC1h 20m
2026-07-23 RPA4530 ORF → LGA Jul 23, 22:50 UTCJul 23, 23:59 UTC1h 9m
2026-07-23 RPA4530 ORF → LGA Jul 23, 22:55 UTCJul 24, 00:00 UTC1h 5m
2026-07-23 RPA4530 ORF → LGA Jul 23, 20:15 UTCJul 23, 21:20 UTC1h 5m
2026-07-23 RPA4412 PHL → DTW Jul 23, 18:20 UTCJul 23, 18:30 UTC10m
2026-07-23 RPA4412 PHL → DTW Jul 23, 17:40 UTCJul 23, 18:30 UTC50m
2026-07-23 RPA4412 PHL → DTW Jul 23, 17:39 UTCJul 23, 18:03 UTC24m
2026-07-23 RPA4412 PHL → DTW Jul 23, 15:40 UTCJul 23, 16:25 UTC45m
2026-07-23 RPA4633 LGA → ORD Jul 23, 12:50 UTCJul 23, 14:45 UTC1h 55m
2026-07-23 RPA4633 LGA → ORD Jul 23, 12:48 UTCJul 23, 14:35 UTC1h 47m
2026-07-22 RPA4804 OKC → DCA Jul 22, 23:10 UTCJul 23, 00:25 UTC1h 15m
2026-07-22 RPA4804 OKC → DCA Jul 22, 23:06 UTCJul 23, 00:23 UTC1h 17m
2026-07-22 RPA4371 JFK → RDU Jul 22, 18:15 UTCJul 22, 20:00 UTC1h 45m
2026-07-22 RPA4365 AVL → LGA Jul 22, 14:45 UTCJul 22, 16:50 UTC2h 5m
2026-07-22 RPA4631 LGA → GSO Jul 22, 11:30 UTCJul 22, 13:05 UTC1h 35m
2026-07-21 RPA4517 IAH → PHL Jul 21, 22:45 UTCJul 22, 00:15 UTC1h 30m
2026-07-21 RPA4574 DTW → PHL Jul 21, 17:10 UTCJul 21, 19:00 UTC1h 50m
2026-07-21 RPA4567 BNA → RDU Jul 21, 14:40 UTCJul 21, 15:25 UTC45m
2026-07-21 RPA4567 BNA → RDU Jul 21, 14:35 UTCJul 21, 15:24 UTC49m
2026-07-21 RPA4750 SDF → PHL Jul 21, 11:45 UTCJul 21, 13:10 UTC1h 25m
2026-07-21 RPA4672 DCA → SDF Jul 21, 01:00 UTCJul 21, 02:10 UTC1h 10m
2026-07-20 RPA4773 GSO → LGA Jul 20, 22:55 UTCJul 20, 23:46 UTC51m
2026-07-20 RPA4773 GSO → LGA Jul 20, 22:55 UTCJul 20, 23:40 UTC45m
2026-07-20 RPA4575 DAY → LGA Jul 20, 19:50 UTCJul 20, 21:25 UTC1h 35m
2026-07-20 RPA4575 DAY → LGA Jul 20, 19:46 UTCJul 20, 21:24 UTC1h 38m
2026-07-20 RPA4575 DAY → LGA Jul 20, 17:20 UTCJul 20, 18:40 UTC1h 20m
2026-07-20 RPA4695 - Jul 20, 13:10 UTCJul 20, 15:45 UTC2h 35m
2026-07-19 RPA4554 LGA → XNA Jul 19, 23:05 UTCJul 20, 01:40 UTC2h 35m
2026-07-19 RPA4554 LGA → XNA Jul 19, 23:05 UTCJul 20, 01:45 UTC2h 40m

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 N128HQ page for operator, model, and routing details .

Mode-S A07228 frequently asked

What is Mode-S code A07228?
A07228 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N128HQ.
Where is Mode-S A07228 registered?
Mode-S code A07228 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 A07228 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A07228, octal 50071050, decimal 10,514,984.
What flights does A07228 operate?
Mode-S A07228 has broadcast 20 distinct callsigns, including RPA4759, RPA4746, RPA4426, RPA4540, RPA4413.