Apparatus

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sensors Mode-S transponder

ABDF3F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N864RW · EMBRAER ERJ-170-100 · operated by REPUBLIC AIRWAYS INC

Hex
ABDF3F
Octal
52757477
Decimal
11,263,807
Country
US
Tail
N864RW
Type
E170
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
695
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S ABDF3F.

Country allocation

The ICAO 24-bit address ABDF3F 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
RPA4438 Republic Airlines 26 2026-07-24
RPA4623 Republic Airlines 24 2026-07-24
RPA4556 Republic Airlines 22 2026-07-22
RPA4486 - 22 2026-07-15
RPA4347 - 20 2026-07-04
RPA4624 - 18 2026-07-17
RPA4546 Republic Airlines 15 2026-07-26
RPA4423 Republic Airlines 14 2026-07-24
RPA4404 Republic Airlines 14 2026-07-18
RPA4483 Republic Airlines 13 2026-07-21
RPA4377 Republic Airlines 13 2026-07-24
RPA4503 - 12 2026-07-13
RPA4462 Republic Airlines 12 2026-05-18
RPA4472 Republic Airlines 11 2026-05-20
RPA4388 Republic Airlines 11 2026-07-23
RPA4578 Republic Airlines 10 2026-07-25
RPA4473 Republic Airlines 10 2026-07-17
RPA4471 - 10 2026-07-16
RPA4373 - 10 2026-07-16
RPA4591 - 9 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4525 DCA → PHL Jul 26, 21:20 UTCJul 26, 21:45 UTC25m
2026-07-26 RPA4546 JFK → DCA Jul 26, 19:10 UTCJul 26, 20:00 UTC50m
2026-07-26 RPA4546 JFK → DCA Jul 26, 16:45 UTCJul 26, 17:25 UTC40m
2026-07-26 RPA4669 MIA → BTV Jul 26, 13:35 UTCJul 26, 15:50 UTC2h 15m
2026-07-25 RPA4509 LGA → RDU Jul 25, 18:45 UTCJul 25, 20:50 UTC2h 5m
2026-07-25 RPA4394 DCA → PHL Jul 25, 16:00 UTCJul 25, 17:20 UTC1h 20m
2026-07-25 RPA4394 DCA → PHL Jul 25, 15:59 UTCJul 25, 17:18 UTC1h 19m
2026-07-25 RPA4398 MSY → DCA Jul 25, 13:50 UTCJul 25, 15:00 UTC1h 10m
2026-07-25 RPA4578 ALB → MIA Jul 25, 11:15 UTCJul 25, 11:45 UTC30m
2026-07-25 RPA4578 ALB → MIA Jul 25, 11:10 UTCJul 25, 12:18 UTC1h 8m
2026-07-25 RPA4577 JFK → DCA Jul 25, 01:10 UTCJul 25, 02:25 UTC1h 15m
2026-07-24 RPA4423 LGA → ILM Jul 24, 22:10 UTCJul 24, 23:40 UTC1h 30m
2026-07-24 RPA4423 LGA → ILM Jul 24, 22:07 UTCJul 24, 23:30 UTC1h 23m
2026-07-24 RPA4423 LGA → ILM Jul 24, 19:15 UTCJul 24, 20:50 UTC1h 35m
2026-07-24 RPA4623 DCA → ATL Jul 24, 17:00 UTCJul 24, 18:05 UTC1h 5m
2026-07-24 RPA4623 DCA → ATL Jul 24, 16:56 UTCJul 24, 17:57 UTC1h 1m
2026-07-24 RPA4623 DCA → ATL Jul 24, 14:50 UTCJul 24, 15:55 UTC1h 5m
2026-07-24 RPA4377 GSO → LGA Jul 24, 12:15 UTCJul 24, 12:55 UTC40m
2026-07-24 RPA4377 GSO → LGA Jul 24, 10:15 UTCJul 24, 10:45 UTC30m
2026-07-24 RPA4438 LGA → YYZ Jul 24, 00:55 UTCJul 24, 01:55 UTC1h 0m
2026-07-23 RPA4438 LGA → YYZ Jul 23, 22:50 UTCJul 23, 23:55 UTC1h 5m
2026-07-23 RPA4388 RDU → LGA Jul 23, 18:15 UTCJul 23, 19:25 UTC1h 10m
2026-07-23 RPA4388 RDU → LGA Jul 23, 18:14 UTCJul 23, 19:30 UTC1h 16m
2026-07-23 RPA4388 RDU → LGA Jul 23, 16:10 UTCJul 23, 17:25 UTC1h 15m
2026-07-23 RPA4357 - Jul 23, 13:00 UTCJul 23, 14:30 UTC1h 30m
2026-07-22 RPA4793 LGA → IND Jul 22, 21:55 UTCJul 22, 23:35 UTC1h 40m
2026-07-22 RPA4793 LGA → IND Jul 22, 21:53 UTCJul 22, 23:34 UTC1h 41m
2026-07-22 RPA4556 BOS → YYZ Jul 22, 19:45 UTCJul 22, 20:40 UTC55m
2026-07-22 RPA4556 BOS → YYZ Jul 22, 17:40 UTCJul 22, 18:45 UTC1h 5m
2026-07-21 RPA4483 RDU → LGA Jul 21, 15:30 UTCJul 21, 15:45 UTC15m
2026-07-21 RPA4483 RDU → LGA Jul 21, 15:23 UTCJul 21, 16:23 UTC1h 0m
2026-07-21 RPA4483 RDU → LGA Jul 21, 12:55 UTCJul 21, 14:10 UTC1h 15m
2026-07-21 RPA4578 ALB → MIA Jul 21, 10:15 UTCJul 21, 11:25 UTC1h 10m
2026-07-21 RPA4577 - Jul 21, 01:35 UTCJul 21, 02:50 UTC1h 15m
2026-07-20 RPA4423 LGA → ILM Jul 20, 22:15 UTCJul 20, 23:55 UTC1h 39m
2026-07-20 RPA4423 LGA → ILM Jul 20, 22:14 UTCJul 20, 23:46 UTC1h 32m
2026-07-20 RPA4423 LGA → ILM Jul 20, 19:20 UTCJul 20, 20:45 UTC1h 25m
2026-07-20 RPA4623 DCA → ATL Jul 20, 16:56 UTCJul 20, 18:09 UTC1h 13m
2026-07-20 RPA4623 DCA → ATL Jul 20, 17:00 UTCJul 20, 18:10 UTC1h 10m
2026-07-20 RPA4623 DCA → ATL Jul 20, 14:55 UTCJul 20, 15:55 UTC1h 0m
2026-07-20 RPA4377 BOS → LGA Jul 20, 12:21 UTCJul 20, 13:08 UTC47m
2026-07-20 RPA4377 LGA → BNH Jul 20, 10:10 UTCJul 20, 10:55 UTC45m
2026-07-19 RPA4605 ATL → LGA Jul 19, 22:40 UTCJul 20, 00:45 UTC2h 5m
2026-07-19 RPA4605 - Jul 19, 20:40 UTCJul 19, 21:15 UTC35m
2026-07-19 RPA4605 - Jul 19, 16:35 UTCJul 19, 18:50 UTC2h 15m
2026-07-19 RPA4566 BDL → DCA Jul 19, 13:25 UTCJul 19, 15:40 UTC2h 15m
2026-07-18 RPA4566 BDL → DCA Jul 18, 14:44 UTCJul 18, 16:56 UTC2h 12m
2026-07-18 RPA4566 BDL → DCA Jul 18, 14:45 UTCJul 18, 17:15 UTC2h 30m
2026-07-18 RPA4424 PVD → DCA Jul 18, 11:25 UTCJul 18, 12:05 UTC40m
2026-07-18 RPA4404 CLE → PHL Jul 18, 01:30 UTCJul 18, 02:00 UTC30m

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 N864RW page for operator, model, and routing details .

Mode-S ABDF3F frequently asked

What is Mode-S code ABDF3F?
ABDF3F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N864RW.
Where is Mode-S ABDF3F registered?
Mode-S code ABDF3F 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 ABDF3F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABDF3F, octal 52757477, decimal 11,263,807.
What flights does ABDF3F operate?
Mode-S ABDF3F has broadcast 20 distinct callsigns, including RPA4438, RPA4623, RPA4556, RPA4486, RPA4347.