Apparatus

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sensors Mode-S transponder

AA7A1F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N774YX · operated by REPUBLIC AIRWAYS INC

Hex
AA7A1F
Octal
52475037
Decimal
11,172,383
Country
US
Tail
N774YX
Type
E75L
No current signal · last broadcast Jul 26, 20:00 UTC
Flights observed
675
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:00 UTC

Last known position

Most recent position reported by Mode-S AA7A1F.

Country allocation

The ICAO 24-bit address AA7A1F 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
RPA3698 - 8 2026-07-20
RPA3607 Republic Airlines 7 2026-07-25
RPA3487 - 7 2026-06-16
RPA3486 Republic Airlines 7 2026-07-02
RPA3459 Republic Airlines 7 2026-07-24
RPA3701 - 6 2026-06-17
RPA3691 Republic Airlines 6 2026-06-17
RPA3688 Republic Airlines 6 2026-07-20
RPA3614 - 6 2026-06-26
RPA3560 Republic Airlines 6 2026-07-26
RPA3531 - 6 2026-07-13
RPA3510 Republic Airlines 6 2026-06-25
RPA3457 - 6 2026-07-16
RPA3452 - 6 2026-06-25
RPA3435 - 6 2026-07-10
RPA3709 - 5 2026-07-01
RPA3707 - 5 2026-06-21
RPA3694 Republic Airlines 5 2026-06-06
RPA3692 - 5 2026-06-19
RPA3685 Republic Airlines 5 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA3414 EWR → BNA Jul 26, 18:35 UTCJul 26, 19:55 UTC1h 20m
2026-07-26 RPA3621 IAD → EWR Jul 26, 15:45 UTCJul 26, 16:50 UTC1h 5m
2026-07-26 RPA3560 CLT → EWR Jul 26, 13:20 UTCJul 26, 14:20 UTC1h 0m
2026-07-26 RPA3540 EWR → CLT Jul 26, 02:48 UTCJul 26, 03:18 UTC30m
2026-07-26 RPA3540 EWR → CLT Jul 26, 02:45 UTCJul 26, 03:20 UTC35m
2026-07-26 RPA3466 EWR → PWM Jul 26, 00:00 UTCJul 26, 00:55 UTC55m
2026-07-25 RPA3453 GSP → EWR Jul 25, 21:30 UTCJul 25, 22:30 UTC1h 0m
2026-07-25 RPA3414 EWR → BNA Jul 25, 18:30 UTCJul 25, 19:45 UTC1h 15m
2026-07-25 RPA3414 EWR → BNA Jul 25, 18:42 UTCJul 25, 19:55 UTC1h 13m
2026-07-25 RPA3621 IAD → EWR Jul 25, 15:50 UTCJul 25, 16:45 UTC55m
2026-07-25 RPA3416 GSP → EWR Jul 25, 13:00 UTCJul 25, 14:15 UTC1h 15m
2026-07-25 RPA3607 EWR → MSN Jul 25, 02:33 UTCJul 25, 03:25 UTC52m
2026-07-25 RPA3607 EWR → MSN Jul 25, 02:35 UTCJul 25, 03:25 UTC50m
2026-07-25 RPA3520 EWR → BUF Jul 25, 00:00 UTCJul 25, 00:45 UTC45m
2026-07-24 RPA3624 EWR → ROC Jul 24, 22:10 UTCJul 24, 23:00 UTC50m
2026-07-24 RPA3459 CVG → EWR Jul 24, 18:45 UTCJul 24, 20:05 UTC1h 20m
2026-07-24 RPA3685 YYZ → EWR Jul 24, 16:20 UTCJul 24, 17:05 UTC45m
2026-07-24 RPA3409 BOS → EWR Jul 24, 13:30 UTCJul 24, 14:35 UTC1h 5m
2026-07-23 RPA3586 EWR → GSO Jul 23, 22:40 UTCJul 24, 00:00 UTC1h 20m
2026-07-22 RPA3565 BNA → EWR Jul 22, 23:55 UTCJul 23, 00:45 UTC50m
2026-07-22 RPA3565 BNA → EWR Jul 22, 23:46 UTCJul 23, 00:45 UTC59m
2026-07-22 RPA3579 CVG → EWR Jul 22, 22:15 UTCJul 22, 22:50 UTC35m
2026-07-22 RPA3414 EWR → BNA Jul 22, 18:40 UTCJul 22, 20:05 UTC1h 25m
2026-07-22 RPA3621 EWR → YUL Jul 22, 15:50 UTCJul 22, 16:50 UTC1h 0m
2026-07-22 RPA3560 PIT → EWR Jul 22, 13:20 UTCJul 22, 14:15 UTC55m
2026-07-22 RPA3560 PIT → EWR Jul 22, 13:28 UTCJul 22, 14:03 UTC35m
2026-07-21 RPA3296 MSP → PIT Jul 21, 20:01 UTCJul 21, 21:22 UTC1h 21m
2026-07-21 RPA3296 MSP → PIT Jul 21, 20:00 UTCJul 21, 21:35 UTC1h 35m
2026-07-21 RPA3649 EWR → MSY Jul 21, 12:55 UTCJul 21, 15:40 UTC2h 45m
2026-07-21 RPA3656 LGA → IAD Jul 21, 10:25 UTCJul 21, 11:15 UTC50m
2026-07-21 RPA3656 LGA → IAD Jul 21, 10:24 UTCJul 21, 11:12 UTC48m
2026-07-21 RPA3682 IND → EWR Jul 21, 02:20 UTCJul 21, 03:05 UTC45m
2026-07-21 RPA3433 - Jul 21, 00:00 UTCJul 21, 01:00 UTC1h 0m
2026-07-21 RPA3433 CLE → IAD Jul 21, 00:10 UTCJul 21, 00:57 UTC47m
2026-07-20 RPA3488 SAV → EWR Jul 20, 21:40 UTCJul 20, 22:30 UTC50m
2026-07-20 RPA3688 ORD → MCI Jul 20, 19:10 UTCJul 20, 20:00 UTC50m
2026-07-20 RPA3698 IAD → LGA Jul 20, 17:15 UTCJul 20, 17:55 UTC40m
2026-07-20 RPA3402 AVL → EWR Jul 20, 14:20 UTCJul 20, 15:35 UTC1h 15m
2026-07-20 RPA3410 - Jul 20, 12:25 UTCJul 20, 13:15 UTC50m
2026-07-20 RPA3626 - Jul 20, 10:10 UTCJul 20, 11:00 UTC50m
2026-07-19 RPA3647 - Jul 19, 14:40 UTCJul 19, 15:30 UTC50m
2026-07-19 RPA3503 - Jul 19, 10:15 UTCJul 19, 12:05 UTC1h 50m
2026-07-19 RPA3310 ALB → GSO Jul 19, 03:10 UTCJul 19, 03:55 UTC45m
2026-07-19 RPA3593 - Jul 19, 00:30 UTCJul 19, 02:00 UTC1h 30m
2026-07-18 RPA3413 EWR → CMH Jul 18, 17:05 UTCJul 18, 18:55 UTC1h 50m
2026-07-18 RPA3552 IAD → BOS Jul 18, 14:53 UTCJul 18, 15:49 UTC56m
2026-07-18 RPA3552 - Jul 18, 14:40 UTCJul 18, 15:45 UTC1h 5m
2026-07-17 RPA3671 YYZ → IAD Jul 17, 17:03 UTCJul 17, 18:09 UTC1h 6m
2026-07-17 RPA3671 - Jul 17, 16:59 UTCJul 17, 17:44 UTC45m
2026-07-17 RPA3601 - Jul 17, 14:35 UTCJul 17, 15:40 UTC1h 5m

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 N774YX page for operator, model, and routing details .

Mode-S AA7A1F frequently asked

What is Mode-S code AA7A1F?
AA7A1F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N774YX.
Where is Mode-S AA7A1F registered?
Mode-S code AA7A1F 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 AA7A1F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7A1F, octal 52475037, decimal 11,172,383.
What flights does AA7A1F operate?
Mode-S AA7A1F has broadcast 20 distinct callsigns, including RPA3698, RPA3607, RPA3487, RPA3486, RPA3459.