Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB349F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N821AN · BOEING 787-9 Dreamliner · operated by AMERICAN AIRLINES INC

Hex
AB349F
Octal
52632237
Decimal
11,220,127
Country
US
Tail
N821AN
Type
B789
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
238
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AB349F.

Country allocation

The ICAO 24-bit address AB349F 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
AAL127 American Airlines 15 2026-07-26
AAL169 - 13 2026-06-14
AAL167 - 13 2026-07-16
AAL26 American Airlines 12 2026-06-13
AAL950 - 10 2026-07-15
AAL128 American Airlines 10 2026-07-25
AAL719 - 9 2026-07-03
AAL236 - 9 2026-06-30
AAL111 - 9 2026-07-08
AAL235 - 8 2026-07-09
AAL170 - 8 2026-07-17
AAL168 - 8 2026-07-18
AAL962 American Airlines 7 2026-07-22
AAL718 - 7 2026-07-07
AAL292 American Airlines 7 2026-07-19
AAL27 - 7 2026-07-17
AAL123 American Airlines 7 2026-05-01
AAL951 American Airlines 6 2026-07-21
AAL293 American Airlines 6 2026-07-19
AAL279 American Airlines 6 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL127 DFW → PVG Jul 26, 16:25 UTCJul 26, 21:45 UTC5h 20m
2026-07-25 AAL128 ICN → DFW Jul 25, 03:55 UTCJul 25, 22:45 UTC18h 50m
2026-07-24 AAL127 DFW → PVG Jul 24, 17:50 UTCJul 25, 17:40 UTC23h 50m
2026-07-24 AAL127 DFW → PVG Jul 24, 16:20 UTCJul 25, 12:15 UTC19h 55m
2026-07-23 AAL280 ICN → DFW Jul 23, 09:05 UTCJul 23, 21:35 UTC12h 30m
2026-07-22 AAL281 DFW → ICN Jul 22, 16:40 UTCJul 23, 06:25 UTC13h 45m
2026-07-22 AAL962 GRU → DFW Jul 22, 01:15 UTCJul 22, 03:35 UTC2h 20m
2026-07-22 AAL962 GRU → DFW Jul 22, 01:12 UTCJul 22, 10:55 UTC9h 43m
2026-07-21 AAL951 JFK → GRU Jul 21, 01:15 UTCJul 21, 10:05 UTC8h 50m
2026-07-19 AAL293 DEL → JFK Jul 19, 20:20 UTCJul 20, 05:45 UTC9h 25m
2026-07-19 AAL293 DEL → JFK Jul 19, 20:19 UTCJul 20, 11:41 UTC15h 22m
2026-07-19 AAL292 JFK → DEL Jul 19, 04:43 UTCJul 19, 18:15 UTC13h 32m
2026-07-19 AAL292 JFK → DEL Jul 19, 04:45 UTCJul 19, 18:25 UTC13h 40m
2026-07-18 AAL168 HND → JFK Jul 18, 09:20 UTCJul 18, 21:40 UTC12h 20m
2026-07-17 AAL27 LAX → HND Jul 17, 19:49 UTCJul 18, 06:10 UTC10h 21m
2026-07-17 AAL27 - Jul 17, 19:49 UTCJul 18, 06:00 UTC10h 11m
2026-07-17 AAL170 - Jul 17, 06:50 UTCJul 17, 16:55 UTC10h 5m
2026-07-16 AAL167 - Jul 16, 14:45 UTCJul 17, 03:45 UTC13h 0m
2026-07-16 AAL167 JFK → HND Jul 16, 14:43 UTCJul 17, 03:56 UTC13h 13m
2026-07-15 AAL950 - Jul 15, 01:50 UTCJul 15, 02:30 UTC40m
2026-07-15 AAL950 GRU → JFK Jul 15, 01:48 UTCJul 15, 11:00 UTC9h 12m
2026-07-14 AAL963 - Jul 14, 03:20 UTCJul 14, 12:45 UTC9h 25m
2026-07-13 AAL128 - Jul 13, 04:10 UTCJul 13, 23:05 UTC18h 55m
2026-07-12 AAL128 - Jul 12, 21:50 UTCJul 13, 21:45 UTC23h 55m
2026-07-12 AAL127 - Jul 12, 19:50 UTCJul 13, 19:45 UTC23h 55m
2026-07-12 AAL127 - Jul 12, 17:50 UTCJul 13, 17:45 UTC23h 55m
2026-07-12 AAL127 - Jul 12, 16:35 UTCJul 13, 12:00 UTC19h 25m
2026-07-11 AAL280 ICN → DFW Jul 11, 15:05 UTCJul 12, 03:30 UTC12h 25m
2026-07-10 AAL281 DFW → ICN Jul 10, 22:06 UTCJul 11, 13:01 UTC14h 55m
2026-07-10 AAL281 - Jul 10, 22:10 UTCJul 11, 11:45 UTC13h 35m
2026-07-10 AAL9787 JFK → DFW Jul 10, 16:30 UTCJul 10, 19:35 UTC3h 5m
2026-07-10 AAL9787 JFK → DFW Jul 10, 16:26 UTCJul 10, 19:29 UTC3h 3m
2026-07-09 AAL235 - Jul 9, 09:35 UTCJul 9, 12:05 UTC2h 30m
2026-07-09 AAL235 FCO → JFK Jul 9, 09:33 UTCJul 9, 17:57 UTC8h 24m
2026-07-09 AAL235 FCO → JFK Jul 9, 09:33 UTCJul 9, 17:55 UTC8h 22m
2026-07-08 AAL110 ORD → FCO Jul 8, 22:40 UTCJul 9, 07:10 UTC8h 30m
2026-07-08 AAL111 - Jul 8, 08:25 UTCJul 8, 17:50 UTC9h 25m
2026-07-07 AAL718 PHL → FCO Jul 7, 20:55 UTCJul 8, 04:40 UTC7h 45m
2026-07-07 AAL718 PHL → FCO Jul 7, 20:53 UTCJul 8, 04:39 UTC7h 46m
2026-07-07 AAL259 LIS → PHL Jul 7, 10:15 UTCJul 7, 10:55 UTC40m
2026-07-07 AAL259 LIS → PHL Jul 7, 10:14 UTCJul 7, 17:16 UTC7h 2m
2026-07-07 AAL258 - Jul 7, 01:50 UTCJul 7, 07:45 UTC5h 55m
2026-07-07 AAL258 PHL → LIS Jul 7, 01:52 UTCJul 7, 08:05 UTC6h 13m
2026-07-06 AAL299 STT → JFK Jul 6, 12:45 UTCJul 6, 21:12 UTC8h 27m
2026-07-06 AAL299 STT → JFK Jul 6, 12:45 UTCJul 6, 21:09 UTC8h 24m
2026-07-06 AAL299 STT → JFK Jul 6, 12:45 UTCJul 6, 15:10 UTC2h 25m
2026-07-06 AAL298 PHL → MXP Jul 6, 01:20 UTCJul 6, 08:20 UTC7h 0m
2026-07-06 AAL298 PHL → MXP Jul 6, 00:50 UTCJul 6, 01:00 UTC10m
2026-07-05 AAL755 - Jul 5, 12:45 UTCJul 5, 20:35 UTC7h 50m
2026-07-05 AAL755 CDG → PHL Jul 5, 12:42 UTCJul 5, 20:31 UTC7h 49m

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 N821AN page for operator, model, and routing details .

Mode-S AB349F frequently asked

What is Mode-S code AB349F?
AB349F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N821AN.
Where is Mode-S AB349F registered?
Mode-S code AB349F 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 AB349F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB349F, octal 52632237, decimal 11,220,127.
What flights does AB349F operate?
Mode-S AB349F has broadcast 20 distinct callsigns, including AAL127, AAL169, AAL167, AAL26, AAL950.