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sensors Mode-S transponder

AA7DD6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N775YX · EMBRAER ERJ-170-100 · operated by REPUBLIC AIRWAYS INC

Hex
AA7DD6
Octal
52476726
Decimal
11,173,334
Country
US
Tail
N775YX
Type
E170
No current signal · last broadcast Jul 26, 20:10 UTC
Flights observed
672
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:10 UTC

Last known position

Most recent position reported by Mode-S AA7DD6.

Country allocation

The ICAO 24-bit address AA7DD6 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
RPA3415 Republic Airlines 10 2026-07-24
RPA3459 - 9 2026-07-10
RPA3709 Republic Airlines 8 2026-07-23
RPA3705 Republic Airlines 8 2026-07-23
RPA3624 - 8 2026-06-26
RPA3575 - 8 2026-07-05
RPA3540 - 8 2026-06-27
RPA3660 - 7 2026-07-13
RPA3584 Republic Airlines 7 2026-07-24
RPA3550 Republic Airlines 7 2026-07-23
RPA3683 - 6 2026-06-26
RPA3682 Republic Airlines 6 2026-05-20
RPA3675 - 6 2026-07-06
RPA3600 - 6 2026-07-05
RPA3443 - 6 2026-06-23
RPA3419 Republic Airlines 6 2026-06-02
RPA3302 - 6 2026-07-16
RPA3704 Republic Airlines 5 2026-07-24
RPA3698 - 5 2026-07-08
RPA3685 - 5 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA3715 EWR → YUL Jul 26, 19:10 UTCJul 26, 20:05 UTC55m
2026-07-26 RPA3684 PIT → EWR Jul 26, 15:20 UTCJul 26, 16:50 UTC1h 30m
2026-07-26 RPA3684 PIT → EWR Jul 26, 15:32 UTCJul 26, 16:50 UTC1h 18m
2026-07-26 RPA3604 EWR → PHL Jul 26, 12:50 UTCJul 26, 14:25 UTC1h 35m
2026-07-26 RPA3652 CVG → EWR Jul 26, 10:10 UTCJul 26, 11:20 UTC1h 10m
2026-07-26 RPA3412 BGR → EWR Jul 26, 01:50 UTCJul 26, 03:05 UTC1h 15m
2026-07-26 RPA3412 BGR → EWR Jul 26, 01:53 UTCJul 26, 03:04 UTC1h 11m
2026-07-25 RPA3699 EWR → ATL Jul 25, 22:35 UTCJul 26, 01:00 UTC2h 25m
2026-07-25 RPA3650 EWR → CLT Jul 25, 17:52 UTCJul 25, 19:48 UTC1h 56m
2026-07-25 RPA3650 EWR → CLT Jul 25, 17:35 UTCJul 25, 19:45 UTC2h 10m
2026-07-25 RPA3648 GSP → EWR Jul 25, 15:00 UTCJul 25, 16:05 UTC1h 5m
2026-07-25 RPA3648 GSP → EWR Jul 25, 15:05 UTCJul 25, 16:13 UTC1h 8m
2026-07-25 RPA3553 SAT → EWR Jul 25, 11:50 UTCJul 25, 12:50 UTC1h 0m
2026-07-24 RPA3518 MSN → ORD Jul 24, 23:55 UTCJul 25, 01:30 UTC1h 35m
2026-07-24 RPA3584 DTW → EWR Jul 24, 21:26 UTCJul 24, 22:49 UTC1h 23m
2026-07-24 RPA3584 DTW → EWR Jul 24, 21:20 UTCJul 24, 22:50 UTC1h 30m
2026-07-24 RPA3415 AVL → EWR Jul 24, 18:45 UTCJul 24, 19:40 UTC55m
2026-07-24 RPA3415 AVL → EWR Jul 24, 18:57 UTCJul 24, 19:30 UTC33m
2026-07-24 RPA3704 EWR → DCA Jul 24, 16:20 UTCJul 24, 17:45 UTC1h 25m
2026-07-24 RPA3539 GSP → EWR Jul 24, 12:10 UTCJul 24, 12:55 UTC45m
2026-07-23 RPA3519 ORD → MCI Jul 23, 22:55 UTCJul 24, 00:35 UTC1h 40m
2026-07-23 RPA3545 EWR → CMH Jul 23, 19:40 UTCJul 23, 20:45 UTC1h 5m
2026-07-23 RPA3547 EWR → BOS Jul 23, 17:15 UTCJul 23, 18:35 UTC1h 20m
2026-07-23 RPA3547 EWR → BOS Jul 23, 17:04 UTCJul 23, 18:31 UTC1h 27m
2026-07-23 RPA3709 IND → EWR Jul 23, 14:20 UTCJul 23, 15:25 UTC1h 5m
2026-07-23 RPA3550 EWR → CLT Jul 23, 12:40 UTCJul 23, 13:15 UTC35m
2026-07-23 RPA3479 - Jul 23, 10:25 UTCJul 23, 11:15 UTC50m
2026-07-23 RPA3479 IND → ORD Jul 23, 10:20 UTCJul 23, 11:03 UTC43m
2026-07-23 RPA3705 ORD → LGA Jul 23, 00:15 UTCJul 23, 02:00 UTC1h 45m
2026-07-22 RPA3469 DTW → EWR Jul 22, 20:25 UTCJul 22, 22:00 UTC1h 35m
2026-07-22 RPA3702 DFW → ORD Jul 22, 19:00 UTCJul 22, 19:30 UTC30m
2026-07-22 RPA3485 DCA → EWR Jul 22, 16:40 UTCJul 22, 17:35 UTC55m
2026-07-22 RPA3417 EWR → JAX Jul 22, 14:20 UTCJul 22, 15:50 UTC1h 30m
2026-07-22 RPA3604 - Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-21 RPA3291 CVG → ALB Jul 21, 23:15 UTCJul 22, 00:20 UTC1h 5m
2026-07-21 RPA3403 ATL → EWR Jul 21, 00:20 UTCJul 21, 01:10 UTC50m
2026-07-20 RPA3666 CMH → EWR Jul 20, 20:55 UTCJul 20, 22:05 UTC1h 10m
2026-07-20 RPA3437 BUF → EWR Jul 20, 18:25 UTCJul 20, 19:50 UTC1h 25m
2026-07-20 RPA3482 DCA → EWR Jul 20, 14:25 UTCJul 20, 16:15 UTC1h 50m
2026-07-20 RPA3482 DCA → EWR Jul 20, 14:37 UTCJul 20, 16:17 UTC1h 40m
2026-07-20 RPA3620 EWR → MSN Jul 20, 01:00 UTCJul 20, 03:00 UTC2h 0m
2026-07-19 RPA3706 - Jul 19, 21:25 UTCJul 19, 22:45 UTC1h 20m
2026-07-19 RPA3706 - Jul 19, 18:35 UTCJul 19, 19:15 UTC40m
2026-07-19 RPA3317 MKE → GSO Jul 19, 01:20 UTCJul 19, 02:20 UTC1h 0m
2026-07-19 RPA3317 MKE → GSO Jul 19, 01:16 UTCJul 19, 02:25 UTC1h 9m
2026-07-16 RPA3302 - Jul 16, 15:19 UTCJul 16, 15:30 UTC10m
2026-07-16 RPA3302 CLT → PIT Jul 16, 15:25 UTCJul 16, 16:16 UTC51m
2026-07-15 RPA3533 - Jul 15, 19:15 UTCJul 15, 20:35 UTC1h 20m
2026-07-15 RPA3533 EWR → CLT Jul 15, 19:26 UTCJul 15, 20:24 UTC58m
2026-07-15 RPA3583 YUL → EWR Jul 15, 15:47 UTCJul 15, 16:28 UTC41m

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 N775YX page for operator, model, and routing details .

Mode-S AA7DD6 frequently asked

What is Mode-S code AA7DD6?
AA7DD6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N775YX.
Where is Mode-S AA7DD6 registered?
Mode-S code AA7DD6 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 AA7DD6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7DD6, octal 52476726, decimal 11,173,334.
What flights does AA7DD6 operate?
Mode-S AA7DD6 has broadcast 20 distinct callsigns, including RPA3415, RPA3459, RPA3709, RPA3705, RPA3624.