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sensors Mode-S transponder

A05F95

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N123HQ · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
A05F95
Octal
50057625
Decimal
10,510,229
Country
US
Tail
N123HQ
Type
E75L
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
758
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A05F95.

Country allocation

The ICAO 24-bit address A05F95 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
RPA4364 - 10 2026-07-03
RPA4340 Republic Airlines 10 2026-07-22
RPA4494 Republic Airlines 9 2026-06-26
RPA4396 Republic Airlines 9 2026-04-25
RPA4360 Republic Airlines 8 2026-05-31
RPA4749 Republic Airlines 7 2026-07-20
RPA4700 Republic Airlines 7 2026-07-24
RPA4618 Republic Airlines 7 2026-07-22
RPA4575 - 7 2026-07-13
RPA4555 Republic Airlines 7 2026-07-23
RPA4441 Republic Airlines 7 2026-07-25
RPA4379 - 7 2026-07-05
RPA4767 - 6 2026-07-08
RPA4760 - 6 2026-06-30
RPA4630 - 6 2026-07-04
RPA4540 Republic Airlines 6 2026-05-18
RPA4536 Republic Airlines 6 2026-05-01
RPA4475 Republic Airlines 6 2026-05-26
RPA4461 - 6 2026-07-15
RPA4456 - 6 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4489 AGS → LGA Jul 26, 20:30 UTCJul 26, 21:15 UTC45m
2026-07-26 RPA123 IND → JFK Jul 26, 18:25 UTCJul 26, 19:30 UTC1h 5m
2026-07-26 RPA4581 MEM → LGA Jul 26, 13:35 UTCJul 26, 16:35 UTC3h 0m
2026-07-26 RPA4581 MEM → LGA Jul 26, 13:35 UTCJul 26, 16:34 UTC2h 59m
2026-07-26 RPA4547 RDU → LGA Jul 26, 01:50 UTCJul 26, 04:20 UTC2h 30m
2026-07-26 RPA4547 RDU → LGA Jul 26, 01:48 UTCJul 26, 04:19 UTC2h 31m
2026-07-25 RPA4395 DCA → BDL Jul 25, 21:35 UTCJul 26, 00:30 UTC2h 55m
2026-07-25 RPA4395 DCA → BDL Jul 25, 21:34 UTCJul 26, 00:28 UTC2h 54m
2026-07-25 RPA4395 DCA → BDL Jul 25, 18:15 UTCJul 25, 20:55 UTC2h 40m
2026-07-25 RPA4653 PBI → DCA Jul 25, 15:55 UTCJul 25, 16:20 UTC25m
2026-07-25 RPA4653 PBI → DCA Jul 25, 15:48 UTCJul 25, 16:16 UTC28m
2026-07-25 RPA4653 PBI → DCA Jul 25, 14:10 UTCJul 25, 14:25 UTC15m
2026-07-25 RPA4441 IND → ORD Jul 25, 11:10 UTCJul 25, 12:55 UTC1h 45m
2026-07-25 RPA4541 DCA → MHT Jul 25, 00:15 UTCJul 25, 01:30 UTC1h 15m
2026-07-24 RPA4553 LGA → DTW Jul 24, 21:25 UTCJul 24, 22:35 UTC1h 10m
2026-07-24 RPA4553 LGA → DTW Jul 24, 19:35 UTCJul 24, 20:30 UTC55m
2026-07-24 RPA4700 CMH → DCA Jul 24, 17:55 UTCJul 24, 18:35 UTC40m
2026-07-24 RPA4700 CMH → DCA Jul 24, 17:51 UTCJul 24, 18:28 UTC37m
2026-07-24 RPA4700 CMH → DCA Jul 24, 15:40 UTCJul 24, 16:35 UTC55m
2026-07-24 RPA4766 CVG → BOS Jul 24, 12:00 UTCJul 24, 14:00 UTC2h 0m
2026-07-24 RPA4694 LGA → SDF Jul 24, 01:50 UTCJul 24, 04:00 UTC2h 10m
2026-07-23 RPA4555 ATL → LGA Jul 23, 22:40 UTCJul 23, 23:55 UTC1h 15m
2026-07-23 RPA4555 ATL → LGA Jul 23, 20:45 UTCJul 23, 21:40 UTC55m
2026-07-23 RPA4416 JFK → CMH Jul 23, 19:15 UTCJul 23, 19:35 UTC20m
2026-07-23 RPA4416 JFK → CMH Jul 23, 16:50 UTCJul 23, 19:35 UTC2h 45m
2026-07-23 RPA4416 JFK → CMH Jul 23, 13:30 UTCJul 23, 15:50 UTC2h 20m
2026-07-23 RPA4351 - Jul 23, 09:55 UTCJul 23, 11:20 UTC1h 25m
2026-07-23 RPA4353 BDL → DCA Jul 23, 04:55 UTCJul 23, 06:00 UTC1h 5m
2026-07-23 RPA4736 LGA → BUF Jul 23, 02:45 UTCJul 23, 03:40 UTC55m
2026-07-23 RPA4736 LGA → BUF Jul 23, 00:55 UTCJul 23, 01:55 UTC1h 0m
2026-07-22 RPA4340 DCA → BDL Jul 22, 19:20 UTCJul 22, 21:05 UTC1h 45m
2026-07-22 RPA4340 DCA → BDL Jul 22, 19:15 UTCJul 22, 21:01 UTC1h 46m
2026-07-22 RPA4340 DCA → BDL Jul 22, 16:25 UTCJul 22, 18:10 UTC1h 45m
2026-07-22 RPA4618 LGA → CVG Jul 22, 13:40 UTCJul 22, 14:55 UTC1h 15m
2026-07-22 RPA4618 LGA → CVG Jul 22, 11:35 UTCJul 22, 12:25 UTC50m
2026-07-22 RPA4340 DCA → BDL Jul 22, 04:05 UTCJul 22, 05:25 UTC1h 20m
2026-07-22 RPA4340 DCA → BDL Jul 22, 04:01 UTCJul 22, 05:45 UTC1h 44m
2026-07-21 RPA4340 DCA → BDL Jul 21, 16:40 UTCJul 21, 18:30 UTC1h 50m
2026-07-21 RPA4434 AGS → BOS Jul 21, 13:45 UTCJul 21, 15:05 UTC1h 20m
2026-07-21 RPA4439 YYZ → LGA Jul 21, 12:00 UTCJul 21, 12:35 UTC35m
2026-07-21 RPA4487 PHL → DCA Jul 21, 09:36 UTCJul 21, 10:39 UTC1h 3m
2026-07-21 RPA4361 PHL → CMH Jul 21, 02:05 UTCJul 21, 03:15 UTC1h 10m
2026-07-21 RPA4361 PHL → CMH Jul 21, 02:08 UTCJul 21, 03:15 UTC1h 7m
2026-07-20 RPA4749 PHL → DCA Jul 20, 21:30 UTCJul 20, 22:15 UTC45m
2026-07-20 RPA4749 PHL → DCA Jul 20, 21:29 UTCJul 20, 22:15 UTC46m
2026-07-20 RPA4749 PHL → DCA Jul 20, 20:00 UTCJul 20, 20:40 UTC40m
2026-07-20 RPA4749 PHL → DCA Jul 20, 18:50 UTCJul 20, 18:55 UTC5m
2026-07-20 RPA4749 PHL → DCA Jul 20, 18:00 UTCJul 20, 18:05 UTC5m
2026-07-20 RPA4430 IND → DCA Jul 20, 16:55 UTCJul 20, 17:55 UTC1h 0m
2026-07-20 RPA4561 - Jul 20, 15:00 UTCJul 20, 15:55 UTC55m

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 N123HQ page for operator, model, and routing details .

Mode-S A05F95 frequently asked

What is Mode-S code A05F95?
A05F95 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N123HQ.
Where is Mode-S A05F95 registered?
Mode-S code A05F95 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 A05F95 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A05F95, octal 50057625, decimal 10,510,229.
What flights does A05F95 operate?
Mode-S A05F95 has broadcast 20 distinct callsigns, including RPA4364, RPA4340, RPA4494, RPA4396, RPA4360.