Apparatus

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sensors Mode-S transponder

AA5A0E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N766YX · EMBRAER ERJ-170-200 (long wing) · operated by REPUBLIC AIRWAYS INC

Hex
AA5A0E
Octal
52455016
Decimal
11,164,174
Country
US
Tail
N766YX
Type
E75L
No current signal · last broadcast Jul 26, 19:45 UTC
Flights observed
664
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:45 UTC

Last known position

Most recent position reported by Mode-S AA5A0E.

Country allocation

The ICAO 24-bit address AA5A0E 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
RPA3707 - 9 2026-07-18
RPA3690 Republic Airlines 7 2026-06-20
RPA3653 - 7 2026-07-18
RPA3647 Republic Airlines 7 2026-07-23
RPA3635 - 7 2026-06-19
RPA3525 - 7 2026-06-27
RPA3494 - 7 2026-07-23
RPA3705 Republic Airlines 6 2026-07-25
RPA3652 Republic Airlines 6 2026-07-22
RPA3604 - 6 2026-07-16
RPA3592 - 6 2026-06-28
RPA3490 Republic Airlines 6 2026-07-25
RPA3425 - 6 2026-07-13
RPA3409 - 6 2026-06-17
RPA3702 - 5 2026-07-15
RPA3699 - 5 2026-06-24
RPA3684 - 5 2026-07-16
RPA3682 - 5 2026-07-11
RPA3659 Republic Airlines 5 2026-07-19
RPA3633 - 5 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA3618 MKE → EWR Jul 26, 18:15 UTCJul 26, 19:45 UTC1h 30m
2026-07-26 RPA3588 EWR → PVD Jul 26, 14:55 UTCJul 26, 16:15 UTC1h 20m
2026-07-26 RPA3673 IAD → BTV Jul 26, 11:30 UTCJul 26, 12:30 UTC1h 0m
2026-07-25 RPA3403 ATL → EWR Jul 25, 23:45 UTCJul 26, 00:40 UTC55m
2026-07-25 RPA3403 ATL → EWR Jul 25, 23:57 UTCJul 26, 00:38 UTC41m
2026-07-25 RPA3705 ORD → LGA Jul 25, 19:10 UTCJul 25, 20:10 UTC1h 0m
2026-07-25 RPA3490 ORF → EWR Jul 25, 17:10 UTCJul 25, 17:30 UTC20m
2026-07-25 RPA3490 ORF → EWR Jul 25, 17:00 UTCJul 25, 18:09 UTC1h 9m
2026-07-25 RPA3465 DCA → EWR Jul 25, 14:20 UTCJul 25, 15:30 UTC1h 10m
2026-07-25 RPA3465 DCA → EWR Jul 25, 14:19 UTCJul 25, 15:49 UTC1h 30m
2026-07-25 RPA3665 ROC → EWR Jul 25, 12:15 UTCJul 25, 13:05 UTC50m
2026-07-25 RPA3626 IAD → LGA Jul 25, 10:10 UTCJul 25, 11:00 UTC50m
2026-07-25 RPA3643 EWR → RDU Jul 25, 02:05 UTCJul 25, 02:50 UTC45m
2026-07-24 RPA3571 EWR → DTW Jul 24, 23:10 UTCJul 25, 00:35 UTC1h 25m
2026-07-24 RPA3571 EWR → DTW Jul 24, 23:13 UTCJul 25, 00:37 UTC1h 24m
2026-07-24 RPA3443 EWR → DCA Jul 24, 20:10 UTCJul 24, 21:50 UTC1h 40m
2026-07-24 RPA3478 EWR → ILM Jul 24, 17:10 UTCJul 24, 18:45 UTC1h 35m
2026-07-24 RPA3478 EWR → ILM Jul 24, 17:09 UTCJul 24, 18:28 UTC1h 19m
2026-07-24 RPA3669 ROC → EWR Jul 24, 14:22 UTCJul 24, 15:35 UTC1h 13m
2026-07-24 RPA3669 ROC → EWR Jul 24, 14:00 UTCJul 24, 14:05 UTC5m
2026-07-24 RPA3703 YQB → EWR Jul 24, 10:25 UTCJul 24, 11:16 UTC51m
2026-07-24 RPA3703 YQB → EWR Jul 24, 10:00 UTCJul 24, 11:25 UTC1h 25m
2026-07-24 RPA3625 EWR → ROC Jul 24, 01:35 UTCJul 24, 02:50 UTC1h 15m
2026-07-23 RPA3476 EYW → EWR Jul 23, 23:00 UTCJul 23, 23:50 UTC50m
2026-07-23 RPA3523 MSY → EWR Jul 23, 19:50 UTCJul 23, 21:20 UTC1h 30m
2026-07-23 RPA3523 MSY → EWR Jul 23, 20:05 UTCJul 23, 21:22 UTC1h 17m
2026-07-23 RPA3494 ROC → ORD Jul 23, 16:40 UTCJul 23, 17:56 UTC1h 16m
2026-07-23 RPA3494 ROC → ORD Jul 23, 16:30 UTCJul 23, 18:00 UTC1h 30m
2026-07-23 RPA3647 YYZ → EWR Jul 23, 14:25 UTCJul 23, 15:15 UTC50m
2026-07-23 RPA3685 YYZ → EWR Jul 23, 11:50 UTCJul 23, 13:10 UTC1h 20m
2026-07-23 RPA3521 CLT → ORD Jul 23, 02:50 UTCJul 23, 03:55 UTC1h 5m
2026-07-23 RPA3521 CLT → ORD Jul 23, 02:35 UTCJul 23, 03:55 UTC1h 20m
2026-07-22 RPA3628 SDF → EWR Jul 22, 23:30 UTCJul 23, 01:25 UTC1h 55m
2026-07-22 RPA3436 CLT → EWR Jul 22, 19:30 UTCJul 22, 22:20 UTC2h 50m
2026-07-22 RPA3480 DTW → EWR Jul 22, 16:30 UTCJul 22, 17:50 UTC1h 20m
2026-07-22 RPA3641 EWR → CMH Jul 22, 13:55 UTCJul 22, 15:10 UTC1h 15m
2026-07-22 RPA3652 CVG → EWR Jul 22, 11:30 UTCJul 22, 12:35 UTC1h 5m
2026-07-21 RPA3288 ALB → ATL Jul 21, 17:47 UTCJul 21, 17:50 UTC3m
2026-07-21 RPA3288 ALB → ATL Jul 21, 17:30 UTCJul 21, 18:00 UTC30m
2026-07-21 RPA3503 - Jul 21, 15:30 UTCJul 21, 16:45 UTC1h 15m
2026-07-21 RPA3503 EWR → CLE Jul 21, 13:55 UTCJul 21, 16:52 UTC2h 57m
2026-07-21 RPA3458 - Jul 21, 11:15 UTCJul 21, 12:50 UTC1h 35m
2026-07-20 RPA3545 - Jul 20, 22:40 UTCJul 20, 23:50 UTC1h 10m
2026-07-20 RPA3545 YUL → EWR Jul 20, 19:50 UTCJul 20, 20:45 UTC55m
2026-07-20 RPA3547 EWR → BOS Jul 20, 17:15 UTCJul 20, 18:35 UTC1h 20m
2026-07-20 RPA3590 YUL → IAD Jul 20, 13:35 UTCJul 20, 14:55 UTC1h 20m
2026-07-19 RPA3602 IAD → YUL Jul 19, 23:05 UTCJul 20, 00:20 UTC1h 15m
2026-07-19 RPA3438 - Jul 19, 10:10 UTCJul 19, 11:15 UTC1h 5m
2026-07-19 RPA3659 GSO → EWR Jul 19, 04:55 UTCJul 19, 05:30 UTC35m
2026-07-19 RPA3659 GSO → EWR Jul 19, 05:03 UTCJul 19, 05:46 UTC43m

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 N766YX page for operator, model, and routing details .

Mode-S AA5A0E frequently asked

What is Mode-S code AA5A0E?
AA5A0E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N766YX.
Where is Mode-S AA5A0E registered?
Mode-S code AA5A0E 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 AA5A0E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA5A0E, octal 52455016, decimal 11,164,174.
What flights does AA5A0E operate?
Mode-S AA5A0E has broadcast 20 distinct callsigns, including RPA3707, RPA3690, RPA3653, RPA3647, RPA3635.