Apparatus

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sensors Mode-S transponder

A3489F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N310UM · operated by AMERICAN AIRLINES INC

Hex
A3489F
Octal
50644237
Decimal
10,700,959
Country
US
Tail
N310UM
Type
B38M
Broadcasting now · callsign AAL1785 · 37,000 ft
Flights observed
479
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:50 UTC

Current position

A3489F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3489F 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
AAL476 - 9 2026-07-18
AAL763 American Airlines 6 2026-07-26
AAL903 American Airlines 5 2026-04-13
AAL658 American Airlines 5 2026-07-25
AAL597 - 5 2026-07-18
AAL3315 - 5 2026-07-11
AAL2672 - 5 2026-07-22
AAL2212 American Airlines 5 2026-04-22
AAL1224 - 5 2026-07-14
AAL3283 - 4 2026-07-02
AAL3191 - 4 2026-07-01
AAL2768 American Airlines 4 2026-05-19
AAL2677 American Airlines 4 2026-05-18
AAL2579 American Airlines 4 2026-07-25
AAL2546 - 4 2026-06-26
AAL2269 - 4 2026-06-28
AAL1889 American Airlines 4 2026-05-16
AAL1733 American Airlines 4 2026-05-17
AAL1502 American Airlines 4 2026-04-22
AAL1359 American Airlines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL763 CLT → ATL Jul 26, 16:10 UTCJul 26, 17:45 UTC1h 35m
2026-07-26 AAL763 CLT → ATL Jul 26, 16:11 UTCJul 26, 19:46 UTC3h 35m
2026-07-26 AAL763 CLT → ATL Jul 26, 11:15 UTCJul 26, 14:25 UTC3h 10m
2026-07-25 AAL1359 ORD → PHL Jul 25, 22:05 UTCJul 26, 01:25 UTC3h 20m
2026-07-25 AAL2579 DFW → EYW Jul 25, 17:20 UTCJul 25, 19:45 UTC2h 25m
2026-07-25 AAL2579 DFW → EYW Jul 25, 17:18 UTCJul 25, 20:08 UTC2h 50m
2026-07-25 AAL658 LGA → DFW Jul 25, 02:45 UTCJul 25, 15:25 UTC12h 40m
2026-07-25 AAL1869 PHX → CLT Jul 25, 01:05 UTCJul 25, 01:20 UTC15m
2026-07-24 AAL505 MEX → MIA Jul 24, 20:20 UTCJul 24, 23:10 UTC2h 50m
2026-07-24 AAL2995 JFK → MEX Jul 24, 14:00 UTCJul 24, 18:15 UTC4h 15m
2026-07-24 AAL556 SFO → DFW Jul 24, 05:55 UTCJul 24, 10:15 UTC4h 20m
2026-07-23 AAL2864 DFW → LAS Jul 23, 22:30 UTCJul 23, 23:45 UTC1h 15m
2026-07-23 AAL2864 DFW → LAS Jul 23, 22:27 UTCJul 24, 00:51 UTC2h 24m
2026-07-23 AAL1653 DFW → TPA Jul 23, 14:05 UTCJul 23, 20:20 UTC6h 15m
2026-07-23 AAL1884 SYR → DFW Jul 23, 11:00 UTCJul 23, 12:05 UTC1h 5m
2026-07-23 AAL1646 DFW → AUS Jul 23, 04:30 UTCJul 23, 05:30 UTC1h 0m
2026-07-23 AAL1695 CLT → DFW Jul 23, 01:45 UTCJul 23, 03:10 UTC1h 25m
2026-07-22 AAL1695 CLT → DFW Jul 22, 23:20 UTCJul 23, 00:40 UTC1h 20m
2026-07-22 AAL2672 - Jul 22, 19:05 UTCJul 22, 21:45 UTC2h 40m
2026-07-22 AAL2672 - Jul 22, 15:00 UTCJul 22, 17:30 UTC2h 30m
2026-07-22 AAL2243 CLT → PHL Jul 22, 10:20 UTCJul 22, 11:50 UTC1h 30m
2026-07-21 AAL2019 SFO → DFW Jul 21, 19:30 UTCJul 21, 23:30 UTC4h 0m
2026-07-21 AAL2051 SFO → PHX Jul 21, 13:00 UTCJul 21, 17:25 UTC4h 25m
2026-07-20 AAL1092 AUS → JFK Jul 20, 19:50 UTCJul 20, 23:50 UTC4h 0m
2026-07-20 AAL1218 DCA → PHX Jul 20, 14:25 UTCJul 20, 18:20 UTC3h 55m
2026-07-20 AAL1218 DCA → PHX Jul 20, 14:22 UTCJul 20, 18:21 UTC3h 59m
2026-07-19 AAL472 DFW → DCA Jul 19, 23:40 UTCJul 20, 02:20 UTC2h 40m
2026-07-19 AAL2400 - Jul 19, 19:00 UTCJul 19, 21:25 UTC2h 25m
2026-07-19 AAL2400 DFW → RDU Jul 19, 14:55 UTCJul 19, 17:20 UTC2h 25m
2026-07-19 AAL2617 IAD → DFW Jul 19, 10:40 UTCJul 19, 13:10 UTC2h 30m
2026-07-19 AAL1132 DFW → IAD Jul 19, 01:55 UTCJul 19, 04:15 UTC2h 20m
2026-07-18 AAL476 - Jul 18, 20:20 UTCJul 19, 00:05 UTC3h 45m
2026-07-18 AAL476 SJO → DFW Jul 18, 20:19 UTCJul 19, 00:02 UTC3h 43m
2026-07-18 AAL476 SJO → SJO Jul 18, 19:45 UTCJul 18, 19:50 UTC5m
2026-07-18 AAL597 - Jul 18, 16:25 UTCJul 18, 18:45 UTC2h 20m
2026-07-18 AAL597 MIA → SJO Jul 18, 16:23 UTCJul 18, 18:45 UTC2h 22m
2026-07-18 AAL2725 - Jul 18, 12:00 UTCJul 18, 14:25 UTC2h 25m
2026-07-18 AAL2393 - Jul 18, 01:39 UTCJul 18, 01:54 UTC15m
2026-07-17 AAL2393 - Jul 17, 22:40 UTCJul 18, 01:00 UTC2h 20m
2026-07-17 AAL1256 - Jul 17, 20:10 UTCJul 17, 20:44 UTC35m
2026-07-17 AAL1256 - Jul 17, 17:55 UTCJul 17, 18:25 UTC30m
2026-07-17 AAL1136 - Jul 17, 12:19 UTCJul 17, 12:55 UTC35m
2026-07-17 AAL1136 JFK → ANU Jul 17, 12:19 UTCJul 17, 16:14 UTC3h 55m
2026-07-16 AAL2694 GEO → JFK Jul 16, 23:10 UTCJul 17, 09:50 UTC10h 40m
2026-07-16 AAL1256 - Jul 16, 19:55 UTCJul 16, 20:19 UTC25m
2026-07-16 AAL1256 ANU → MIA Jul 16, 17:29 UTCJul 16, 20:20 UTC2h 51m
2026-07-16 AAL1136 - Jul 16, 12:09 UTCJul 16, 12:44 UTC35m
2026-07-16 AAL1136 JFK → ANU Jul 16, 12:10 UTCJul 16, 15:43 UTC3h 33m
2026-07-16 AAL556 LAS → JFK Jul 16, 06:05 UTCJul 16, 10:45 UTC4h 40m
2026-07-15 AAL2855 JFK → LAS Jul 15, 23:25 UTCJul 16, 03:55 UTC4h 30m

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 N310UM page for operator, model, and routing details .

Mode-S A3489F frequently asked

What is Mode-S code A3489F?
A3489F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N310UM.
Where is Mode-S A3489F registered?
Mode-S code A3489F 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 A3489F broadcasting right now?
Yes. Mode-S A3489F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3489F, octal 50644237, decimal 10,700,959.
What flights does A3489F operate?
Mode-S A3489F has broadcast 20 distinct callsigns, including AAL476, AAL763, AAL903, AAL658, AAL597.