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sensors Mode-S transponder

AA617C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N768YX · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
AA617C
Octal
52460574
Decimal
11,166,076
Country
US
Tail
N768YX
Type
E75L
No current signal · last broadcast Jul 26, 00:25 UTC
Flights observed
639
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 00:25 UTC

Last known position

Most recent position reported by Mode-S AA617C.

Country allocation

The ICAO 24-bit address AA617C 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
RPA3621 - 10 2026-07-12
RPA3619 Republic Airlines 9 2026-07-23
RPA3454 - 8 2026-07-06
RPA3705 - 7 2026-07-21
RPA3600 Republic Airlines 7 2026-05-30
RPA3547 - 7 2026-07-15
RPA3545 - 7 2026-07-16
RPA3474 Republic Airlines 7 2026-07-25
RPA3703 - 6 2026-07-10
RPA3684 - 6 2026-07-03
RPA3604 - 6 2026-07-03
RPA3589 - 6 2026-06-18
RPA3580 - 6 2026-07-02
RPA3574 - 6 2026-07-23
RPA3569 Republic Airlines 6 2026-05-20
RPA3567 - 6 2026-07-11
RPA3555 Republic Airlines 6 2026-07-25
RPA3485 - 6 2026-07-20
RPA3480 Republic Airlines 6 2026-07-23
RPA3408 Republic Airlines 6 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 RPA3674 IAD → YYZ Jul 25, 23:35 UTCJul 26, 00:25 UTC50m
2026-07-25 RPA3605 YYZ → EWR Jul 25, 17:25 UTCJul 25, 18:40 UTC1h 15m
2026-07-25 RPA3555 SAV → EWR Jul 25, 14:30 UTCJul 25, 15:40 UTC1h 10m
2026-07-25 RPA3474 EWR → MYR Jul 25, 11:18 UTCJul 25, 12:24 UTC1h 6m
2026-07-25 RPA3474 EWR → MYR Jul 25, 11:10 UTCJul 25, 12:30 UTC1h 20m
2026-07-25 RPA3408 DCA → EWR Jul 25, 02:10 UTCJul 25, 03:10 UTC1h 0m
2026-07-24 RPA3460 YYZ → EWR Jul 24, 23:20 UTCJul 25, 00:25 UTC1h 5m
2026-07-24 RPA3460 YYZ → EWR Jul 24, 23:18 UTCJul 25, 00:19 UTC1h 1m
2026-07-24 RPA3531 EWR → CLT Jul 24, 20:30 UTCJul 24, 21:35 UTC1h 5m
2026-07-24 RPA3605 YYZ → EWR Jul 24, 17:25 UTCJul 24, 18:40 UTC1h 15m
2026-07-24 RPA3555 SAV → EWR Jul 24, 14:25 UTCJul 24, 15:30 UTC1h 5m
2026-07-24 RPA3503 - Jul 24, 10:10 UTCJul 24, 12:05 UTC1h 55m
2026-07-24 RPA3428 CMH → EWR Jul 24, 01:28 UTCJul 24, 02:41 UTC1h 13m
2026-07-24 RPA3428 CMH → EWR Jul 24, 01:30 UTCJul 24, 02:40 UTC1h 10m
2026-07-23 RPA3563 MSY → EWR Jul 23, 21:00 UTCJul 23, 22:20 UTC1h 20m
2026-07-23 RPA3574 - Jul 23, 18:35 UTCJul 23, 19:50 UTC1h 15m
2026-07-23 RPA3574 EWR → YQB Jul 23, 18:37 UTCJul 23, 19:46 UTC1h 9m
2026-07-23 RPA3480 DTW → EWR Jul 23, 15:50 UTCJul 23, 17:05 UTC1h 15m
2026-07-23 RPA3641 EWR → CMH Jul 23, 13:15 UTCJul 23, 14:35 UTC1h 20m
2026-07-23 RPA3619 SAV → EWR Jul 23, 10:15 UTCJul 23, 11:20 UTC1h 5m
2026-07-22 RPA3670 EWR → GSP Jul 22, 23:35 UTCJul 23, 01:15 UTC1h 40m
2026-07-22 RPA3484 - Jul 22, 20:30 UTCJul 22, 21:35 UTC1h 5m
2026-07-22 RPA3554 - Jul 22, 18:20 UTCJul 22, 19:10 UTC50m
2026-07-22 RPA3406 ABQ → ORD Jul 22, 13:50 UTCJul 22, 16:20 UTC2h 30m
2026-07-22 RPA3640 BOS → EWR Jul 22, 01:25 UTCJul 22, 04:00 UTC2h 35m
2026-07-21 RPA3707 RDU → EWR Jul 21, 19:40 UTCJul 21, 22:00 UTC2h 20m
2026-07-21 RPA3653 - Jul 21, 16:15 UTCJul 21, 18:15 UTC2h 0m
2026-07-21 RPA3661 - Jul 21, 11:20 UTCJul 21, 12:05 UTC45m
2026-07-21 RPA3705 - Jul 21, 00:15 UTCJul 21, 01:45 UTC1h 30m
2026-07-20 RPA3469 - Jul 20, 20:10 UTCJul 20, 21:40 UTC1h 30m
2026-07-20 RPA3702 - Jul 20, 18:30 UTCJul 20, 19:00 UTC30m
2026-07-20 RPA3485 - Jul 20, 15:55 UTCJul 20, 16:45 UTC50m
2026-07-20 RPA3417 EWR → CVG Jul 20, 12:45 UTCJul 20, 14:20 UTC1h 35m
2026-07-19 RPA3686 - Jul 19, 20:50 UTCJul 19, 21:50 UTC1h 0m
2026-07-19 RPA3612 - Jul 19, 12:45 UTCJul 19, 14:00 UTC1h 15m
2026-07-18 RPA3465 - Jul 18, 15:50 UTCJul 18, 17:40 UTC1h 50m
2026-07-18 RPA3465 PWM → IAD Jul 18, 15:30 UTCJul 18, 17:43 UTC2h 13m
2026-07-18 RPA3665 - Jul 18, 13:15 UTCJul 18, 14:05 UTC50m
2026-07-18 RPA3626 - Jul 18, 10:05 UTCJul 18, 10:50 UTC45m
2026-07-18 RPA3643 EWR → RDU Jul 18, 03:20 UTCJul 18, 04:05 UTC45m
2026-07-18 RPA3571 EWR → DTW Jul 18, 00:04 UTCJul 18, 01:50 UTC1h 45m
2026-07-18 RPA3571 EWR → DTW Jul 18, 00:03 UTCJul 18, 01:52 UTC1h 49m
2026-07-17 RPA3443 EWR → IND Jul 17, 20:15 UTCJul 17, 21:50 UTC1h 35m
2026-07-17 RPA3701 BGR → EWR Jul 17, 17:40 UTCJul 17, 18:55 UTC1h 15m
2026-07-17 RPA3423 EWR → BGR Jul 17, 14:00 UTCJul 17, 14:56 UTC56m
2026-07-17 RPA3423 EWR → BGR Jul 17, 13:55 UTCJul 17, 14:55 UTC1h 0m
2026-07-17 RPA3700 - Jul 17, 10:40 UTCJul 17, 12:10 UTC1h 30m
2026-07-17 RPA3606 - Jul 17, 01:55 UTCJul 17, 03:10 UTC1h 15m
2026-07-16 RPA3564 - Jul 16, 22:05 UTCJul 17, 00:04 UTC2h 0m
2026-07-16 RPA3556 EWR → STL Jul 16, 18:43 UTCJul 16, 20:43 UTC2h 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 N768YX page for operator, model, and routing details .

Mode-S AA617C frequently asked

What is Mode-S code AA617C?
AA617C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N768YX.
Where is Mode-S AA617C registered?
Mode-S code AA617C 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 AA617C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 00:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA617C, octal 52460574, decimal 11,166,076.
What flights does AA617C operate?
Mode-S AA617C has broadcast 20 distinct callsigns, including RPA3621, RPA3619, RPA3454, RPA3705, RPA3600.