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sensors Mode-S transponder

AA0B10

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N746YX · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
AA0B10
Octal
52405420
Decimal
11,143,952
Country
US
Tail
N746YX
Type
E75L
Broadcasting now · callsign RPA3540 · 5,000 ft
Flights observed
710
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Current position

AA0B10 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AA0B10 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
RPA3693 Republic Airlines 9 2026-07-24
RPA3422 - 9 2026-06-30
RPA3600 - 8 2026-07-04
RPA3554 - 8 2026-07-20
RPA3715 - 7 2026-07-03
RPA3526 - 7 2026-07-17
RPA3453 - 7 2026-07-01
RPA3418 Republic Airlines 7 2026-07-25
RPA3406 Republic Airlines 7 2026-06-13
RPA3707 - 6 2026-07-13
RPA3652 - 6 2026-07-12
RPA3624 Republic Airlines 6 2026-07-19
RPA3618 Republic Airlines 6 2026-05-08
RPA3610 - 6 2026-06-24
RPA3593 Republic Airlines 6 2026-07-23
RPA3502 Republic Airlines 6 2026-07-24
RPA3485 Republic Airlines 6 2026-06-16
RPA3474 - 6 2026-07-18
RPA3441 Republic Airlines 6 2026-06-09
RPA3405 Republic Airlines 6 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA3533 GSP → EWR Jul 26, 19:20 UTCJul 26, 20:40 UTC1h 20m
2026-07-26 RPA3480 DTW → EWR Jul 26, 15:50 UTCJul 26, 17:20 UTC1h 30m
2026-07-26 RPA3641 MSN → EWR Jul 26, 13:05 UTCJul 26, 14:15 UTC1h 10m
2026-07-26 RPA3697 EWR → CMH Jul 26, 10:20 UTCJul 26, 11:25 UTC1h 5m
2026-07-26 RPA3569 EWR → GSO Jul 26, 02:20 UTCJul 26, 03:30 UTC1h 10m
2026-07-26 RPA3445 EWR → MKE Jul 26, 00:00 UTCJul 26, 01:15 UTC1h 15m
2026-07-25 RPA3418 DCA → EWR Jul 25, 22:15 UTCJul 25, 22:50 UTC35m
2026-07-25 RPA3418 DCA → EWR Jul 25, 22:17 UTCJul 25, 22:43 UTC26m
2026-07-25 RPA3442 IND → EWR Jul 25, 17:35 UTCJul 25, 19:10 UTC1h 35m
2026-07-25 RPA3442 IND → EWR Jul 25, 17:29 UTCJul 25, 18:48 UTC1h 19m
2026-07-25 RPA3504 EWR → EYW Jul 25, 14:25 UTCJul 25, 15:56 UTC1h 31m
2026-07-25 RPA3504 EWR → EYW Jul 25, 14:30 UTCJul 25, 15:55 UTC1h 25m
2026-07-25 RPA3435 EWR → PHL Jul 25, 11:45 UTCJul 25, 12:45 UTC1h 0m
2026-07-25 RPA3434 BUF → EWR Jul 25, 01:05 UTCJul 25, 02:05 UTC1h 0m
2026-07-24 RPA3563 MSY → EWR Jul 24, 21:13 UTCJul 24, 22:01 UTC48m
2026-07-24 RPA3563 MSY → EWR Jul 24, 20:55 UTCJul 24, 22:00 UTC1h 5m
2026-07-24 RPA3574 EWR → YQB Jul 24, 18:37 UTCJul 24, 20:00 UTC1h 23m
2026-07-24 RPA3574 - Jul 24, 18:50 UTCJul 24, 20:00 UTC1h 10m
2026-07-24 RPA3405 AVL → EWR Jul 24, 15:45 UTCJul 24, 17:00 UTC1h 15m
2026-07-24 RPA3405 AVL → EWR Jul 24, 15:39 UTCJul 24, 16:46 UTC1h 7m
2026-07-24 RPA3548 EWR → ITH Jul 24, 13:40 UTCJul 24, 14:50 UTC1h 10m
2026-07-24 RPA3693 IAD → BTV Jul 24, 10:30 UTCJul 24, 11:10 UTC40m
2026-07-24 RPA3502 MCI → EWR Jul 24, 02:25 UTCJul 24, 02:50 UTC25m
2026-07-24 RPA3433 BNA → EWR Jul 24, 00:15 UTCJul 24, 01:05 UTC50m
2026-07-23 RPA3488 SAV → EWR Jul 23, 21:55 UTCJul 23, 22:50 UTC55m
2026-07-23 RPA3593 TVC → EWR Jul 23, 19:35 UTCJul 23, 20:15 UTC40m
2026-07-23 RPA3541 DCA → EWR Jul 23, 17:15 UTCJul 23, 17:45 UTC30m
2026-07-23 RPA3430 EWR → CVG Jul 23, 14:45 UTCJul 23, 15:30 UTC45m
2026-07-23 RPA3514 IAD → BUF Jul 23, 12:40 UTCJul 23, 13:30 UTC50m
2026-07-23 RPA3693 IAD → BTV Jul 23, 10:30 UTCJul 23, 11:10 UTC40m
2026-07-23 RPA3693 IAD → BTV Jul 23, 10:26 UTCJul 23, 11:06 UTC40m
2026-07-23 RPA3502 MCI → EWR Jul 23, 02:40 UTCJul 23, 03:20 UTC40m
2026-07-23 RPA3449 EWR → RDU Jul 23, 00:05 UTCJul 23, 00:45 UTC40m
2026-07-23 RPA3449 EWR → RDU Jul 23, 00:15 UTCJul 23, 00:43 UTC28m
2026-07-22 RPA3447 IAD → JAX Jul 22, 21:45 UTCJul 22, 22:45 UTC1h 0m
2026-07-22 RPA3471 - Jul 22, 18:30 UTCJul 22, 20:15 UTC1h 45m
2026-07-22 RPA3513 EWR → BTV Jul 22, 15:25 UTCJul 22, 16:40 UTC1h 15m
2026-07-22 RPA3513 EWR → BTV Jul 22, 15:22 UTCJul 22, 16:43 UTC1h 21m
2026-07-22 RPA3416 GSP → EWR Jul 22, 12:35 UTCJul 22, 13:50 UTC1h 15m
2026-07-21 RPA3325 GSP → ORD Jul 21, 19:35 UTCJul 21, 20:10 UTC35m
2026-07-21 RPA3495 IAD → DTW Jul 21, 17:10 UTCJul 21, 18:25 UTC1h 15m
2026-07-21 RPA3495 IAD → DTW Jul 21, 17:15 UTCJul 21, 18:26 UTC1h 11m
2026-07-21 RPA3493 - Jul 21, 14:55 UTCJul 21, 16:05 UTC1h 10m
2026-07-21 RPA3498 CMH → EWR Jul 21, 13:05 UTCJul 21, 13:45 UTC40m
2026-07-21 RPA3524 EWR → MKE Jul 21, 09:45 UTCJul 21, 11:05 UTC1h 20m
2026-07-21 RPA3524 EWR → MKE Jul 21, 09:58 UTCJul 21, 10:56 UTC58m
2026-07-21 RPA3674 IAD → YYZ Jul 21, 00:10 UTCJul 21, 00:55 UTC45m
2026-07-20 RPA3484 - Jul 20, 21:30 UTCJul 20, 21:45 UTC15m
2026-07-20 RPA3484 CMH → ORD Jul 20, 20:45 UTCJul 20, 21:45 UTC1h 0m
2026-07-20 RPA3484 CMH → ORD Jul 20, 20:38 UTCJul 20, 21:14 UTC36m

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 N746YX page for operator, model, and routing details .

Mode-S AA0B10 frequently asked

What is Mode-S code AA0B10?
AA0B10 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N746YX.
Where is Mode-S AA0B10 registered?
Mode-S code AA0B10 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 AA0B10 broadcasting right now?
Yes. Mode-S AA0B10 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA0B10, octal 52405420, decimal 11,143,952.
What flights does AA0B10 operate?
Mode-S AA0B10 has broadcast 20 distinct callsigns, including RPA3693, RPA3422, RPA3600, RPA3554, RPA3715.