Apparatus

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sensors Mode-S transponder

ABC2E5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N857RW · EMBRAER ERJ-170-100 · operated by REPUBLIC AIRWAYS INC

Hex
ABC2E5
Octal
52741345
Decimal
11,256,549
Country
US
Tail
N857RW
Type
E170
Broadcasting now · callsign RPA4382 · 4,675 ft
Flights observed
604
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

ABC2E5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABC2E5 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
RPA4347 - 26 2026-07-17
RPA4423 - 22 2026-07-03
RPA4509 - 17 2026-07-10
RPA4381 Republic Airlines 16 2026-06-20
RPA4623 - 15 2026-07-03
RPA4614 - 15 2026-06-28
RPA4556 - 15 2026-07-12
RPA4483 Republic Airlines 13 2026-07-02
RPA4438 - 13 2026-06-24
RPA4473 - 12 2026-07-07
RPA4588 - 11 2026-06-26
RPA4385 Republic Airlines 11 2026-05-10
RPA4578 Republic Airlines 10 2026-07-04
RPA4577 - 10 2026-07-04
RPA4462 Republic Airlines 10 2026-05-15
RPA4670 - 9 2026-07-11
RPA4667 - 9 2026-07-11
RPA4610 - 9 2026-06-23
RPA4550 - 9 2026-07-08
RPA4503 Republic Airlines 9 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 RPA4468 DCA → DSM Jul 22, 22:15 UTCJul 22, 23:55 UTC1h 40m
2026-07-22 RPA4468 DCA → DSM Jul 22, 19:20 UTCJul 22, 21:15 UTC1h 55m
2026-07-22 RPA4757 DCA → MVY Jul 22, 17:15 UTCJul 22, 17:55 UTC40m
2026-07-22 RPA4484 IND → DCA Jul 22, 15:00 UTCJul 22, 16:05 UTC1h 5m
2026-07-22 RPA4625 - Jul 22, 12:10 UTCJul 22, 13:35 UTC1h 25m
2026-07-22 RPA4625 PIT → ORD Jul 22, 12:05 UTCJul 22, 13:25 UTC1h 20m
2026-07-20 RPA4410 BOS → JFK Jul 20, 23:25 UTCJul 21, 00:20 UTC54m
2026-07-20 RPA4497 PIT → PHL Jul 20, 20:40 UTCJul 20, 21:50 UTC1h 10m
2026-07-20 RPA4497 PIT → PHL Jul 20, 20:37 UTCJul 20, 21:49 UTC1h 12m
2026-07-20 RPA4497 PIT → PHL Jul 20, 17:50 UTCJul 20, 19:00 UTC1h 10m
2026-07-20 RPA4502 BOS → STL Jul 20, 15:25 UTCJul 20, 16:30 UTC1h 5m
2026-07-20 RPA4502 BOS → STL Jul 20, 13:50 UTCJul 20, 14:35 UTC45m
2026-07-20 RPA4797 - Jul 20, 10:30 UTCJul 20, 12:05 UTC1h 35m
2026-07-19 RPA4793 LGA → IND Jul 19, 22:15 UTCJul 20, 00:05 UTC1h 50m
2026-07-19 RPA4564 - Jul 19, 13:20 UTCJul 19, 15:30 UTC2h 10m
2026-07-18 RPA4461 JFK → ORF Jul 18, 20:55 UTCJul 18, 23:15 UTC2h 20m
2026-07-18 RPA4357 - Jul 18, 13:20 UTCJul 18, 15:30 UTC2h 10m
2026-07-17 RPA4458 LGA → IND Jul 17, 23:10 UTCJul 18, 00:55 UTC1h 45m
2026-07-17 RPA4497 - Jul 17, 20:04 UTCJul 17, 21:10 UTC1h 5m
2026-07-17 RPA4497 LGA → RDU Jul 17, 17:35 UTCJul 17, 18:44 UTC1h 10m
2026-07-17 RPA4347 YYZ → LGA Jul 17, 15:05 UTCJul 17, 16:15 UTC1h 10m
2026-07-17 RPA4347 YYZ → LGA Jul 17, 15:04 UTCJul 17, 16:08 UTC1h 4m
2026-07-17 RPA4347 LGA → YYZ Jul 17, 12:55 UTCJul 17, 14:00 UTC1h 5m
2026-07-17 RPA4522 - Jul 17, 10:10 UTCJul 17, 11:04 UTC55m
2026-07-17 RPA4616 BOS → BUF Jul 17, 00:45 UTCJul 17, 01:55 UTC1h 10m
2026-07-16 RPA4374 - Jul 16, 23:15 UTCJul 16, 23:44 UTC30m
2026-07-16 RPA4374 LGA → BNH Jul 16, 22:30 UTCJul 16, 23:44 UTC1h 15m
2026-07-16 RPA4374 LGA → BOS Jul 16, 22:29 UTCJul 16, 23:00 UTC31m
2026-07-16 RPA4697 - Jul 16, 21:15 UTCJul 16, 21:35 UTC20m
2026-07-16 RPA4697 - Jul 16, 19:30 UTCJul 16, 21:15 UTC1h 45m
2026-07-16 RPA4697 CAE → LGA Jul 16, 19:26 UTCJul 16, 20:57 UTC1h 31m
2026-07-16 RPA4697 - Jul 16, 17:10 UTCJul 16, 18:34 UTC1h 25m
2026-07-16 RPA4628 ATL → LGA Jul 16, 14:05 UTCJul 16, 16:00 UTC1h 55m
2026-07-16 RPA4628 LGA → ATL Jul 16, 10:25 UTCJul 16, 12:14 UTC1h 50m
2026-07-16 RPA4617 - Jul 16, 00:35 UTCJul 16, 01:50 UTC1h 15m
2026-07-16 RPA4617 CMH → LGA Jul 16, 00:32 UTCJul 16, 01:43 UTC1h 11m
2026-07-15 RPA4767 - Jul 15, 18:55 UTCJul 15, 20:05 UTC1h 10m
2026-07-15 RPA4767 JFK → CMH Jul 15, 18:54 UTCJul 15, 20:04 UTC1h 10m
2026-07-15 RPA4408 - Jul 15, 16:00 UTCJul 15, 17:40 UTC1h 40m
2026-07-15 RPA4408 JFK → CVG Jul 15, 12:55 UTCJul 15, 14:25 UTC1h 30m
2026-07-15 RPA4657 - Jul 15, 10:10 UTCJul 15, 11:50 UTC1h 40m
2026-07-15 RPA4776 - Jul 15, 03:20 UTCJul 15, 04:05 UTC45m
2026-07-14 RPA4492 - Jul 14, 23:45 UTCJul 15, 01:20 UTC1h 35m
2026-07-14 RPA4493 - Jul 14, 21:05 UTCJul 14, 22:00 UTC55m
2026-07-13 RPA4479 LGA → PIT Jul 13, 17:40 UTCJul 13, 18:40 UTC1h 0m
2026-07-13 RPA4502 - Jul 13, 15:35 UTCJul 13, 16:25 UTC50m
2026-07-13 RPA4502 - Jul 13, 13:25 UTCJul 13, 14:05 UTC40m
2026-07-13 RPA4595 BOS → MEM Jul 13, 10:30 UTCJul 13, 12:15 UTC1h 45m
2026-07-12 RPA4599 LGA → ATL Jul 12, 23:55 UTCJul 13, 01:50 UTC1h 55m
2026-07-12 RPA4556 YYZ → LGA Jul 12, 19:45 UTCJul 12, 20:45 UTC1h 0m

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 N857RW page for operator, model, and routing details .

Mode-S ABC2E5 frequently asked

What is Mode-S code ABC2E5?
ABC2E5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N857RW.
Where is Mode-S ABC2E5 registered?
Mode-S code ABC2E5 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 ABC2E5 broadcasting right now?
Yes. Mode-S ABC2E5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABC2E5, octal 52741345, decimal 11,256,549.
What flights does ABC2E5 operate?
Mode-S ABC2E5 has broadcast 20 distinct callsigns, including RPA4347, RPA4423, RPA4509, RPA4381, RPA4623.