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sensors Mode-S transponder

A04E60

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N119HQ · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A04E60
Octal
50047140
Decimal
10,505,824
Country
US
Tail
N119HQ
Type
E75L
Broadcasting now · callsign RPA4749 · 27,250 ft
Flights observed
550
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Current position

A04E60 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A04E60 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
RPA4407 - 10 2026-07-20
RPA4437 Republic Airlines 8 2026-07-26
RPA4601 - 7 2026-06-28
RPA4422 - 7 2026-07-16
RPA4776 Republic Airlines 6 2026-07-25
RPA4752 - 6 2026-07-09
RPA4735 Republic Airlines 6 2026-07-22
RPA4621 - 6 2026-07-04
RPA4397 - 6 2026-07-11
RPA4358 Republic Airlines 6 2026-07-21
RPA4342 - 6 2026-07-09
RPA4716 - 5 2026-07-19
RPA4676 - 5 2026-06-30
RPA4628 - 5 2026-07-15
RPA4613 - 5 2026-07-01
RPA4534 Republic Airlines 5 2026-07-23
RPA4478 Republic Airlines 5 2026-07-24
RPA4413 Republic Airlines 5 2026-07-23
RPA4402 - 5 2026-07-21
RPA4394 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4437 MHT → DCA Jul 26, 21:15 UTCJul 26, 22:00 UTC45m
2026-07-26 RPA4636 BOS → DCA Jul 26, 18:15 UTCJul 26, 20:00 UTC1h 45m
2026-07-26 RPA4636 BOS → DCA Jul 26, 18:15 UTCJul 26, 20:09 UTC1h 54m
2026-07-26 RPA4582 BOS → IND Jul 26, 14:50 UTCJul 26, 17:10 UTC2h 20m
2026-07-26 RPA4582 BOS → IND Jul 26, 11:20 UTCJul 26, 13:45 UTC2h 25m
2026-07-26 RPA4382 BUF → PHL Jul 26, 00:20 UTCJul 26, 01:20 UTC1h 0m
2026-07-25 RPA4525 DCA → PHL Jul 25, 19:35 UTCJul 25, 21:25 UTC1h 50m
2026-07-25 RPA4528 PHL → CLE Jul 25, 15:55 UTCJul 25, 17:35 UTC1h 40m
2026-07-25 RPA4671 BGR → PHL Jul 25, 13:20 UTCJul 25, 14:00 UTC40m
2026-07-25 RPA4657 CVG → JFK Jul 25, 10:20 UTCJul 25, 11:50 UTC1h 30m
2026-07-25 RPA4776 JFK → BOS Jul 25, 04:10 UTCJul 25, 05:00 UTC50m
2026-07-25 RPA4776 JFK → BOS Jul 25, 04:09 UTCJul 25, 04:58 UTC49m
2026-07-25 RPA4426 RIC → PHL Jul 25, 00:50 UTCJul 25, 03:00 UTC2h 10m
2026-07-24 RPA4426 RIC → PHL Jul 24, 18:50 UTCJul 24, 21:00 UTC2h 10m
2026-07-24 RPA4426 RIC → PHL Jul 24, 18:48 UTCJul 24, 20:57 UTC2h 9m
2026-07-24 RPA4478 IAH → PHL Jul 24, 15:55 UTCJul 24, 17:00 UTC1h 5m
2026-07-24 RPA4478 IAH → PHL Jul 24, 14:00 UTCJul 24, 15:00 UTC1h 0m
2026-07-24 RPA4622 JFK → BOS Jul 24, 11:05 UTCJul 24, 11:50 UTC45m
2026-07-24 RPA4603 ORD → SDF Jul 24, 00:50 UTCJul 24, 01:35 UTC45m
2026-07-23 RPA4534 PIT → PHL Jul 23, 23:15 UTCJul 23, 23:35 UTC20m
2026-07-23 RPA4534 PIT → PHL Jul 23, 21:25 UTCJul 23, 23:35 UTC2h 10m
2026-07-23 RPA4534 PIT → PHL Jul 23, 21:23 UTCJul 23, 22:57 UTC1h 34m
2026-07-23 RPA4534 PIT → PHL Jul 23, 17:25 UTCJul 23, 19:00 UTC1h 35m
2026-07-23 RPA4534 PIT → PHL Jul 23, 17:20 UTCJul 23, 19:03 UTC1h 43m
2026-07-23 RPA4413 DCA → PHL Jul 23, 14:20 UTCJul 23, 15:35 UTC1h 15m
2026-07-23 RPA4413 DCA → PHL Jul 23, 12:10 UTCJul 23, 13:15 UTC1h 5m
2026-07-23 RPA4487 PHL → DCA Jul 23, 09:35 UTCJul 23, 10:40 UTC1h 5m
2026-07-23 RPA4361 BTV → DCA Jul 23, 02:10 UTCJul 23, 03:20 UTC1h 10m
2026-07-22 RPA4652 ORD → RDU Jul 22, 22:40 UTCJul 22, 23:40 UTC1h 0m
2026-07-22 RPA4652 ORD → RDU Jul 22, 20:15 UTCJul 22, 21:25 UTC1h 10m
2026-07-22 RPA4735 PHL → SDF Jul 22, 17:05 UTCJul 22, 18:05 UTC1h 0m
2026-07-22 RPA4735 PHL → SDF Jul 22, 15:05 UTCJul 22, 16:00 UTC55m
2026-07-22 RPA9929 JFK → DCA Jul 22, 12:35 UTCJul 22, 13:50 UTC1h 15m
2026-07-21 RPA4712 ILM → LGA Jul 21, 17:15 UTCJul 21, 19:30 UTC2h 15m
2026-07-21 RPA4358 PHL → SDF Jul 21, 13:05 UTCJul 21, 14:30 UTC1h 25m
2026-07-21 RPA4358 PHL → SDF Jul 21, 13:04 UTCJul 21, 14:28 UTC1h 24m
2026-07-21 RPA4351 - Jul 21, 10:00 UTCJul 21, 11:15 UTC1h 15m
2026-07-21 RPA4353 - Jul 21, 02:40 UTCJul 21, 03:45 UTC1h 5m
2026-07-21 RPA4353 DCA → PWM Jul 21, 02:38 UTCJul 21, 03:45 UTC1h 7m
2026-07-21 RPA4402 - Jul 21, 00:35 UTCJul 21, 01:30 UTC55m
2026-07-21 RPA4402 CMH → DCA Jul 21, 00:33 UTCJul 21, 01:26 UTC53m
2026-07-20 RPA4402 - Jul 20, 21:40 UTCJul 20, 22:35 UTC55m
2026-07-20 RPA4407 - Jul 20, 20:20 UTCJul 20, 20:25 UTC5m
2026-07-20 RPA4407 - Jul 20, 19:10 UTCJul 20, 20:25 UTC1h 15m
2026-07-20 RPA4407 IND → DCA Jul 20, 19:09 UTCJul 20, 20:03 UTC54m
2026-07-20 RPA4407 - Jul 20, 16:35 UTCJul 20, 17:55 UTC1h 20m
2026-07-20 RPA4336 JFK → DCA Jul 20, 02:40 UTCJul 20, 03:35 UTC55m
2026-07-19 RPA4456 - Jul 19, 21:25 UTCJul 19, 23:05 UTC1h 40m
2026-07-19 RPA4452 DCA → IND Jul 19, 18:50 UTCJul 19, 20:20 UTC1h 30m
2026-07-19 RPA4349 JFK → BOS Jul 19, 16:16 UTCJul 19, 17:34 UTC1h 18m

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 N119HQ page for operator, model, and routing details .

Mode-S A04E60 frequently asked

What is Mode-S code A04E60?
A04E60 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N119HQ.
Where is Mode-S A04E60 registered?
Mode-S code A04E60 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 A04E60 broadcasting right now?
Yes. Mode-S A04E60 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A04E60, octal 50047140, decimal 10,505,824.
What flights does A04E60 operate?
Mode-S A04E60 has broadcast 20 distinct callsigns, including RPA4407, RPA4437, RPA4601, RPA4422, RPA4776.