Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AA4548

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N761AJ · BOEING 777-200 · operated by UMB BANK NA TRUSTEE

Hex
AA4548
Octal
52442510
Decimal
11,158,856
Country
US
Tail
N761AJ
Type
B772
Transponder active on ground
Flights observed
224
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 20:20 UTC

Last known position

Most recent position reported by Mode-S AA4548.

Country allocation

The ICAO 24-bit address AA4548 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
AAL192 American Airlines 16 2026-07-24
AAL193 - 11 2026-07-14
AAL220 - 9 2026-07-14
AAL95 - 8 2026-07-13
AAL49 American Airlines 8 2026-07-23
AAL221 - 8 2026-07-15
AAL94 - 6 2026-07-12
AAL60 American Airlines 6 2026-06-19
AAL48 American Airlines 6 2026-07-18
AAL113 American Airlines 6 2026-07-20
AAL787 - 5 2026-07-03
AAL786 American Airlines 5 2026-07-22
AAL785 - 5 2026-07-06
AAL748 American Airlines 5 2026-07-06
AAL725 - 5 2026-07-22
AAL721 - 5 2026-06-26
AAL123 - 5 2026-07-01
AAL749 - 4 2026-07-21
AAL61 - 4 2026-06-18
AAL53 - 4 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AAL67 BCN → JFK Jul 25, 12:45 UTCJul 25, 20:00 UTC7h 15m
2026-07-24 AAL192 DFW → BCN Jul 24, 21:50 UTCJul 25, 07:20 UTC9h 30m
2026-07-24 AAL192 DFW → BCN Jul 24, 21:46 UTCJul 25, 07:16 UTC9h 30m
2026-07-23 AAL49 CDG → DFW Jul 23, 08:25 UTCJul 23, 17:45 UTC9h 20m
2026-07-22 AAL786 SLC → PHL Jul 22, 22:40 UTCJul 23, 06:00 UTC7h 20m
2026-07-22 AAL786 SLC → PHL Jul 22, 22:38 UTCJul 23, 06:14 UTC7h 36m
2026-07-22 AAL725 - Jul 22, 11:10 UTCJul 22, 18:55 UTC7h 45m
2026-07-22 AAL725 DUB → CLT Jul 22, 11:01 UTCJul 22, 18:58 UTC7h 57m
2026-07-22 AAL724 CLT → DUB Jul 22, 01:25 UTCJul 22, 02:35 UTC1h 10m
2026-07-21 AAL749 - Jul 21, 11:20 UTCJul 21, 19:15 UTC7h 55m
2026-07-20 AAL68 MIA → MAD Jul 20, 23:30 UTCJul 21, 07:40 UTC8h 9m
2026-07-20 AAL113 BCN → MIA Jul 20, 10:45 UTCJul 20, 19:40 UTC8h 55m
2026-07-19 AAL192 DFW → BCN Jul 19, 21:40 UTCJul 20, 07:15 UTC9h 35m
2026-07-18 AAL49 - Jul 18, 11:50 UTCJul 18, 21:10 UTC9h 20m
2026-07-18 AAL48 DFW → CDG Jul 18, 00:04 UTCJul 18, 09:25 UTC9h 21m
2026-07-16 AAL133 DUB → DFW Jul 16, 12:00 UTCJul 16, 20:45 UTC8h 45m
2026-07-16 AAL133 DUB → DFW Jul 16, 12:00 UTCJul 16, 20:44 UTC8h 44m
2026-07-16 AAL132 - Jul 16, 00:40 UTCJul 16, 08:00 UTC7h 20m
2026-07-16 AAL132 DFW → DUB Jul 16, 00:37 UTCJul 16, 08:52 UTC8h 15m
2026-07-15 AAL221 - Jul 15, 09:50 UTCJul 15, 19:05 UTC9h 15m
2026-07-14 AAL220 DFW → AMS Jul 14, 22:05 UTCJul 15, 07:20 UTC9h 14m
2026-07-14 AAL193 BCN → DFW Jul 14, 09:25 UTCJul 14, 19:25 UTC10h 0m
2026-07-13 AAL66 - Jul 13, 22:20 UTCJul 14, 05:25 UTC7h 5m
2026-07-13 AAL95 - Jul 13, 08:30 UTCJul 13, 15:35 UTC7h 5m
2026-07-12 AAL94 JFK → MAD Jul 12, 20:45 UTCJul 13, 03:15 UTC6h 30m
2026-07-12 AAL199 MXP → JFK Jul 12, 09:50 UTCJul 12, 17:40 UTC7h 50m
2026-07-12 AAL198 JFK → MXP Jul 12, 00:15 UTCJul 12, 07:25 UTC7h 10m
2026-07-11 AAL95 MAD → JFK Jul 11, 08:35 UTCJul 11, 15:55 UTC7h 20m
2026-07-10 AAL94 JFK → MAD Jul 10, 20:43 UTCJul 11, 03:15 UTC6h 32m
2026-07-10 AAL94 JFK → MAD Jul 10, 20:45 UTCJul 11, 03:15 UTC6h 30m
2026-07-09 AAL199 MXP → JFK Jul 9, 11:55 UTCJul 9, 20:02 UTC8h 7m
2026-07-09 AAL199 MXP → JFK Jul 9, 11:55 UTCJul 9, 19:55 UTC8h 0m
2026-07-09 AAL199 - Jul 9, 11:55 UTCJul 9, 14:00 UTC2h 5m
2026-07-09 AAL198 - Jul 9, 02:00 UTCJul 9, 09:30 UTC7h 30m
2026-07-08 AAL333 ATH → JFK Jul 8, 13:17 UTCJul 8, 23:00 UTC9h 43m
2026-07-08 AAL333 - Jul 8, 13:20 UTCJul 8, 22:00 UTC8h 40m
2026-07-07 AAL326 - Jul 7, 23:05 UTCJul 8, 08:50 UTC9h 45m
2026-07-07 AAL749 - Jul 7, 11:25 UTCJul 7, 19:50 UTC8h 25m
2026-07-07 AAL749 MAD → CLT Jul 7, 11:22 UTCJul 7, 19:47 UTC8h 25m
2026-07-06 AAL748 CLT → MAD Jul 6, 20:15 UTCJul 7, 03:35 UTC7h 20m
2026-07-06 AAL785 - Jul 6, 07:20 UTCJul 6, 16:40 UTC9h 20m
2026-07-06 AAL785 MUC → CLT Jul 6, 07:17 UTCJul 6, 16:40 UTC9h 23m
2026-07-05 AAL784 DFW → CLT Jul 5, 21:20 UTCJul 6, 05:05 UTC7h 45m
2026-07-05 AAL705 - Jul 5, 07:30 UTCJul 5, 17:05 UTC9h 35m
2026-07-04 AAL704 CLT → FRA Jul 4, 21:05 UTCJul 5, 04:45 UTC7h 40m
2026-07-04 AAL705 - Jul 4, 07:40 UTCJul 4, 16:40 UTC9h 0m
2026-07-03 AAL704 CLT → FRA Jul 3, 21:10 UTCJul 4, 04:50 UTC7h 40m
2026-07-03 AAL704 CLT → FRA Jul 3, 21:06 UTCJul 4, 04:52 UTC7h 46m
2026-07-03 AAL787 - Jul 3, 09:40 UTCJul 3, 18:15 UTC8h 35m
2026-07-02 AAL42 - Jul 2, 22:15 UTCJul 3, 04:55 UTC6h 40m

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 N761AJ page for operator, model, and routing details .

Mode-S AA4548 frequently asked

What is Mode-S code AA4548?
AA4548 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N761AJ.
Where is Mode-S AA4548 registered?
Mode-S code AA4548 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 AA4548 broadcasting right now?
Mode-S AA4548 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA4548, octal 52442510, decimal 11,158,856.
What flights does AA4548 operate?
Mode-S AA4548 has broadcast 20 distinct callsigns, including AAL192, AAL193, AAL220, AAL95, AAL49.