Apparatus

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sensors Mode-S transponder

ABDB88

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N863RW · EMBRAER ERJ-170-100 · operated by REPUBLIC AIRWAYS INC

Hex
ABDB88
Octal
52755610
Decimal
11,262,856
Country
US
Tail
N863RW
Type
E170
Broadcasting now · callsign RPA4431 · 8,100 ft
Flights observed
702
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:20 UTC

Current position

ABDB88 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABDB88 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
RPA4556 Republic Airlines 26 2026-07-25
RPA4347 - 25 2026-07-18
RPA4509 Republic Airlines 24 2026-07-22
RPA4550 Republic Airlines 20 2026-07-25
RPA4497 Republic Airlines 20 2026-07-23
RPA4483 - 19 2026-07-17
RPA4610 - 15 2026-07-20
RPA4410 Republic Airlines 15 2026-07-20
RPA4623 - 14 2026-06-25
RPA4605 - 14 2026-06-28
RPA4438 Republic Airlines 14 2026-07-24
RPA4381 - 14 2026-07-17
RPA4570 - 13 2026-07-10
RPA4503 - 13 2026-07-04
RPA4591 - 12 2026-07-15
RPA4578 Republic Airlines 12 2026-07-17
RPA4373 - 12 2026-07-22
RPA4577 - 11 2026-07-17
RPA4599 Republic Airlines 10 2026-07-23
RPA4473 - 10 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA4614 IND → LGA Jul 26, 16:35 UTCJul 26, 18:10 UTC1h 35m
2026-07-26 RPA4614 IND → LGA Jul 26, 16:32 UTCJul 26, 18:06 UTC1h 34m
2026-07-26 RPA4614 IND → LGA Jul 26, 13:25 UTCJul 26, 15:05 UTC1h 40m
2026-07-26 RPA4797 ORD → ALB Jul 26, 10:20 UTCJul 26, 12:05 UTC1h 45m
2026-07-26 RPA4797 ORD → ALB Jul 26, 10:20 UTCJul 26, 12:04 UTC1h 44m
2026-07-25 RPA4793 LGA → IND Jul 25, 22:30 UTCJul 26, 00:00 UTC1h 30m
2026-07-25 RPA4556 BOS → YYZ Jul 25, 19:40 UTCJul 25, 20:45 UTC1h 5m
2026-07-25 RPA4556 BOS → YYZ Jul 25, 17:00 UTCJul 25, 18:00 UTC1h 0m
2026-07-25 RPA4550 YUL → LGA Jul 25, 14:40 UTCJul 25, 15:45 UTC1h 5m
2026-07-25 RPA4550 YUL → LGA Jul 25, 12:45 UTCJul 25, 13:40 UTC55m
2026-07-24 RPA4438 LGA → YYZ Jul 24, 23:35 UTCJul 25, 00:35 UTC1h 0m
2026-07-24 RPA4438 LGA → YYZ Jul 24, 21:15 UTCJul 24, 22:25 UTC1h 10m
2026-07-24 RPA4773 GSO → LGA Jul 24, 19:10 UTCJul 24, 19:55 UTC45m
2026-07-24 RPA4405 BOS → ORD Jul 24, 16:25 UTCJul 24, 17:15 UTC50m
2026-07-24 RPA4405 BOS → ORD Jul 24, 16:21 UTCJul 24, 17:15 UTC54m
2026-07-24 RPA4405 BOS → ORD Jul 24, 14:30 UTCJul 24, 15:25 UTC55m
2026-07-24 RPA4352 SDF → DCA Jul 24, 12:15 UTCJul 24, 13:30 UTC1h 15m
2026-07-23 RPA4458 JFK → ORF Jul 23, 23:15 UTCJul 24, 00:55 UTC1h 40m
2026-07-23 RPA4497 PIT → PHL Jul 23, 20:05 UTCJul 23, 21:15 UTC1h 10m
2026-07-23 RPA4497 PIT → PHL Jul 23, 17:50 UTCJul 23, 19:05 UTC1h 15m
2026-07-23 RPA4502 BOS → STL Jul 23, 15:50 UTCJul 23, 16:50 UTC1h 0m
2026-07-23 RPA4502 BOS → STL Jul 23, 14:15 UTCJul 23, 15:00 UTC45m
2026-07-23 RPA4595 BOS → MEM Jul 23, 11:20 UTCJul 23, 13:05 UTC1h 45m
2026-07-23 RPA4599 JFK → CVG Jul 23, 00:10 UTCJul 23, 01:55 UTC1h 45m
2026-07-22 RPA4509 LGA → RDU Jul 22, 20:50 UTCJul 22, 22:50 UTC2h 0m
2026-07-22 RPA4509 LGA → RDU Jul 22, 17:20 UTCJul 22, 19:40 UTC2h 20m
2026-07-22 RPA4373 BOS → LGA Jul 22, 15:25 UTCJul 22, 16:15 UTC50m
2026-07-22 RPA4373 BOS → LGA Jul 22, 15:24 UTCJul 22, 16:09 UTC45m
2026-07-22 RPA4373 LGA → BNH Jul 22, 13:35 UTCJul 22, 14:25 UTC50m
2026-07-22 RPA4751 JFK → DCA Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-21 RPA4423 LGA → ILM Jul 21, 19:41 UTCJul 21, 21:30 UTC1h 49m
2026-07-21 RPA4423 LGA → ILM Jul 21, 19:45 UTCJul 21, 21:35 UTC1h 50m
2026-07-21 RPA4502 BOS → STL Jul 21, 17:25 UTCJul 21, 18:20 UTC55m
2026-07-21 RPA9931 IND → PIT Jul 21, 10:30 UTCJul 21, 12:35 UTC2h 5m
2026-07-21 RPA4599 LGA → ATL Jul 21, 00:00 UTCJul 21, 01:50 UTC1h 50m
2026-07-20 RPA4509 LGA → RDU Jul 20, 20:25 UTCJul 20, 22:25 UTC2h 0m
2026-07-20 RPA4509 LGA → RDU Jul 20, 17:10 UTCJul 20, 19:20 UTC2h 10m
2026-07-20 RPA4373 BOS → LGA Jul 20, 15:10 UTCJul 20, 16:05 UTC55m
2026-07-20 RPA4373 LGA → BOS Jul 20, 13:40 UTCJul 20, 14:20 UTC40m
2026-07-20 RPA4610 - Jul 20, 10:35 UTCJul 20, 11:25 UTC50m
2026-07-20 RPA4410 BOS → JFK Jul 20, 00:15 UTCJul 20, 01:10 UTC55m
2026-07-19 RPA4497 PIT → PHL Jul 19, 20:30 UTCJul 19, 21:35 UTC1h 5m
2026-07-19 RPA4497 PIT → PHL Jul 19, 20:30 UTCJul 19, 21:35 UTC1h 5m
2026-07-19 RPA4497 PIT → PHL Jul 19, 17:45 UTCJul 19, 19:00 UTC1h 15m
2026-07-19 RPA4542 YYZ → LGA Jul 19, 13:45 UTCJul 19, 14:45 UTC1h 0m
2026-07-19 RPA4542 YYZ → LGA Jul 19, 13:41 UTCJul 19, 14:44 UTC1h 3m
2026-07-18 RPA4347 LGA → YYZ Jul 18, 14:00 UTCJul 18, 15:25 UTC1h 25m
2026-07-17 RPA4528 PHL → CLE Jul 17, 23:30 UTCJul 18, 00:25 UTC55m
2026-07-17 RPA4528 PHL → CLE Jul 17, 23:29 UTCJul 18, 00:24 UTC55m
2026-07-17 RPA4528 PHL → CLE Jul 17, 21:30 UTCJul 17, 22:05 UTC35m

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 N863RW page for operator, model, and routing details .

Mode-S ABDB88 frequently asked

What is Mode-S code ABDB88?
ABDB88 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N863RW.
Where is Mode-S ABDB88 registered?
Mode-S code ABDB88 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 ABDB88 broadcasting right now?
Yes. Mode-S ABDB88 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABDB88, octal 52755610, decimal 11,262,856.
What flights does ABDB88 operate?
Mode-S ABDB88 has broadcast 20 distinct callsigns, including RPA4556, RPA4347, RPA4509, RPA4550, RPA4497.