Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A34209

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N309PC · BOEING 737-800 · operated by AMERICAN AIRLINES INC

Hex
A34209
Octal
50641011
Decimal
10,699,273
Country
US
Tail
N309PC
Type
B738
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
538
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A34209.

Country allocation

The ICAO 24-bit address A34209 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
AAL2089 American Airlines 6 2026-06-03
AAL903 American Airlines 5 2026-05-18
AAL2131 American Airlines 5 2026-04-18
AAL1030 American Airlines 5 2026-05-20
AAL3010 - 4 2026-07-08
AAL2762 American Airlines 4 2026-04-14
AAL1945 - 4 2026-06-30
AAL1936 - 4 2026-07-13
AAL1897 American Airlines 4 2026-06-07
AAL1697 - 4 2026-06-27
AAL1233 - 4 2026-07-20
AAL899 American Airlines 3 2026-05-25
AAL885 - 3 2026-07-17
AAL618 American Airlines 3 2026-06-10
AAL491 American Airlines 3 2026-07-20
AAL400 American Airlines 3 2026-06-11
AAL3223 American Airlines 3 2026-04-14
AAL3193 - 3 2026-07-10
AAL3190 American Airlines 3 2026-05-04
AAL3101 American Airlines 3 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL3196 DCA → MSY Jul 26, 20:45 UTCJul 26, 22:15 UTC1h 30m
2026-07-26 AAL2805 LAS → PHL Jul 26, 16:40 UTCJul 26, 19:00 UTC2h 20m
2026-07-26 AAL2401 DFW → TPA Jul 26, 03:35 UTCJul 26, 05:45 UTC2h 10m
2026-07-25 AAL1438 BOS → DFW Jul 25, 22:05 UTCJul 26, 01:15 UTC3h 10m
2026-07-25 AAL1438 BOS → DFW Jul 25, 17:50 UTCJul 25, 20:55 UTC3h 5m
2026-07-25 AAL1189 ORD → PHL Jul 25, 13:19 UTCJul 25, 15:23 UTC2h 4m
2026-07-25 AAL1189 ORD → PHL Jul 25, 13:20 UTCJul 25, 15:30 UTC2h 10m
2026-07-25 AAL2401 DFW → TPA Jul 25, 00:05 UTCJul 25, 02:15 UTC2h 10m
2026-07-24 AAL2572 DCA → DFW Jul 24, 18:55 UTCJul 24, 22:05 UTC3h 10m
2026-07-24 AAL2572 DCA → DFW Jul 24, 14:30 UTCJul 24, 17:30 UTC3h 0m
2026-07-24 AAL808 DFW → PHL Jul 24, 00:45 UTCJul 24, 03:35 UTC2h 50m
2026-07-23 AAL1331 DFW → SNA Jul 23, 20:55 UTCJul 23, 22:50 UTC1h 55m
2026-07-23 AAL1101 BOS → AUS Jul 23, 16:15 UTCJul 23, 18:50 UTC2h 35m
2026-07-23 AAL1101 BOS → AUS Jul 23, 16:13 UTCJul 23, 18:59 UTC2h 46m
2026-07-22 AAL1441 CLT → BOS Jul 22, 16:52 UTCJul 22, 20:04 UTC3h 12m
2026-07-22 AAL1441 CLT → BOS Jul 22, 16:55 UTCJul 22, 20:05 UTC3h 10m
2026-07-22 AAL1822 PHL → CLT Jul 22, 12:55 UTCJul 22, 15:25 UTC2h 30m
2026-07-21 AAL1931 MIA → JAX Jul 21, 00:20 UTCJul 21, 02:40 UTC2h 20m
2026-07-21 AAL1931 MIA → JAX Jul 21, 00:17 UTCJul 21, 02:39 UTC2h 22m
2026-07-20 AAL1931 MIA → JAX Jul 20, 20:20 UTCJul 20, 22:40 UTC2h 20m
2026-07-20 AAL1173 ORD → PIT Jul 20, 14:35 UTCJul 20, 16:40 UTC2h 5m
2026-07-20 AAL491 MIA → DCA Jul 20, 10:15 UTCJul 20, 12:15 UTC2h 0m
2026-07-20 AAL1233 DCA → MIA Jul 20, 01:18 UTCJul 20, 03:30 UTC2h 12m
2026-07-20 AAL1233 - Jul 20, 01:20 UTCJul 20, 03:30 UTC2h 10m
2026-07-19 AAL3101 DFW → DTW Jul 19, 20:15 UTCJul 19, 23:20 UTC3h 5m
2026-07-19 AAL2428 PHL → ORD Jul 19, 16:10 UTCJul 19, 18:30 UTC2h 20m
2026-07-19 AAL2428 PHL → ORD Jul 19, 16:07 UTCJul 19, 18:28 UTC2h 21m
2026-07-19 AAL2428 PHL → ORD Jul 19, 12:30 UTCJul 19, 15:00 UTC2h 30m
2026-07-19 AAL1904 IAD → DFW Jul 19, 00:38 UTCJul 19, 03:21 UTC2h 43m
2026-07-19 AAL1904 IAD → DFW Jul 19, 00:40 UTCJul 19, 03:25 UTC2h 45m
2026-07-18 AAL1904 DFW → IAD Jul 18, 20:25 UTCJul 18, 23:10 UTC2h 45m
2026-07-18 AAL3055 - Jul 18, 15:25 UTCJul 18, 18:00 UTC2h 35m
2026-07-18 AAL1026 - Jul 18, 12:45 UTCJul 18, 13:10 UTC25m
2026-07-18 AAL368 - Jul 18, 00:55 UTCJul 18, 11:30 UTC10h 36m
2026-07-17 AAL885 - Jul 17, 21:30 UTCJul 17, 21:50 UTC20m
2026-07-17 AAL885 - Jul 17, 21:11 UTCJul 17, 21:56 UTC45m
2026-07-17 AAL885 ATL → PBI Jul 17, 17:50 UTCJul 17, 20:04 UTC2h 15m
2026-07-17 AAL3248 - Jul 17, 14:30 UTCJul 17, 15:49 UTC1h 20m
2026-07-17 AAL1657 BOS → PHL Jul 17, 00:25 UTCJul 17, 01:45 UTC1h 20m
2026-07-16 AAL1657 BOS → PHL Jul 16, 21:55 UTCJul 16, 23:20 UTC1h 25m
2026-07-16 AAL2981 EWR → MIA Jul 16, 17:25 UTCJul 16, 19:50 UTC2h 25m
2026-07-16 AAL2981 EWR → MIA Jul 16, 17:22 UTCJul 16, 19:45 UTC2h 23m
2026-07-16 AAL1820 DFW → EWR Jul 16, 12:51 UTCJul 16, 15:49 UTC2h 58m
2026-07-16 AAL1820 DFW → EWR Jul 16, 12:55 UTCJul 16, 15:55 UTC3h 0m
2026-07-16 AAL2337 - Jul 16, 01:35 UTCJul 16, 03:45 UTC2h 10m
2026-07-15 AAL2337 DFW → CMH Jul 15, 22:20 UTCJul 16, 00:25 UTC2h 5m
2026-07-15 AAL2135 - Jul 15, 18:00 UTCJul 15, 20:45 UTC2h 45m
2026-07-15 AAL2135 - Jul 15, 14:25 UTCJul 15, 16:30 UTC2h 5m
2026-07-15 AAL1098 - Jul 15, 10:50 UTCJul 15, 12:05 UTC1h 15m
2026-07-15 AAL1732 - Jul 15, 01:45 UTCJul 15, 03:35 UTC1h 50m

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 N309PC page for operator, model, and routing details .

Mode-S A34209 frequently asked

What is Mode-S code A34209?
A34209 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N309PC.
Where is Mode-S A34209 registered?
Mode-S code A34209 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 A34209 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A34209, octal 50641011, decimal 10,699,273.
What flights does A34209 operate?
Mode-S A34209 has broadcast 20 distinct callsigns, including AAL2089, AAL903, AAL2131, AAL1030, AAL3010.