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sensors Mode-S transponder

AC8009

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N904WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AC8009
Octal
53100011
Decimal
11,304,969
Country
US
Tail
N904WN
Type
B737
Broadcasting now · callsign SWA1693 · 28,325 ft
Flights observed
618
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

AC8009 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC8009 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
SWA1219 Southwest Airlines 7 2026-05-16
SWA301 Southwest Airlines 6 2026-05-26
SWA300 Southwest Airlines 6 2026-06-13
SWA169 Southwest Airlines 6 2026-04-28
SWA3958 Southwest Airlines 5 2026-05-18
SWA2990 - 5 2026-06-29
SWA2409 - 5 2026-04-14
SWA1753 - 5 2026-07-02
SWA1285 Southwest Airlines 5 2026-05-25
SWA715 - 4 2026-06-26
SWA649 Southwest Airlines 4 2026-06-03
SWA427 - 4 2026-07-12
SWA406 - 4 2026-06-19
SWA3846 - 4 2026-07-09
SWA3281 Southwest Airlines 4 2026-05-27
SWA2705 Southwest Airlines 4 2026-04-20
SWA2318 Southwest Airlines 4 2026-06-26
SWA1191 - 4 2026-07-05
SWA994 Southwest Airlines 3 2026-05-13
SWA9001 Southwest Airlines 3 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA1422 - Jul 14, 13:40 UTCJul 14, 15:50 UTC2h 10m
2026-07-14 SWA1422 - Jul 14, 10:35 UTCJul 14, 12:35 UTC2h 0m
2026-07-14 SWA4709 MCO → RSW Jul 14, 02:25 UTCJul 14, 03:00 UTC35m
2026-07-13 SWA104 - Jul 13, 22:45 UTCJul 14, 01:00 UTC2h 15m
2026-07-13 SWA3192 - Jul 13, 18:55 UTCJul 13, 21:10 UTC2h 15m
2026-07-13 SWA3192 - Jul 13, 18:53 UTCJul 13, 21:11 UTC2h 18m
2026-07-13 SWA1044 BWI → PBI Jul 13, 15:35 UTCJul 13, 17:35 UTC2h 0m
2026-07-13 SWA3402 - Jul 13, 13:35 UTCJul 13, 14:35 UTC1h 0m
2026-07-13 SWA3402 PVD → BWI Jul 13, 13:33 UTCJul 13, 14:34 UTC1h 1m
2026-07-13 SWA4821 - Jul 13, 11:25 UTCJul 13, 12:15 UTC50m
2026-07-13 SWA4821 BWI → PVD Jul 13, 11:24 UTCJul 13, 12:18 UTC54m
2026-07-13 SWA736 BOS → BWI Jul 13, 02:01 UTCJul 13, 03:10 UTC1h 10m
2026-07-13 SWA941 - Jul 13, 00:10 UTCJul 13, 01:05 UTC55m
2026-07-12 SWA941 TPA → BWI Jul 12, 21:15 UTCJul 12, 23:10 UTC1h 55m
2026-07-12 SWA427 - Jul 12, 17:20 UTCJul 12, 20:01 UTC2h 40m
2026-07-12 SWA427 BDL → TPA Jul 12, 17:18 UTCJul 12, 20:01 UTC2h 43m
2026-07-12 SWA427 - Jul 12, 15:25 UTCJul 12, 16:10 UTC45m
2026-07-12 SWA427 MSP → BWI Jul 12, 12:01 UTCJul 12, 14:01 UTC2h 0m
2026-07-12 SWA863 - Jul 12, 01:35 UTCJul 12, 03:45 UTC2h 10m
2026-07-12 SWA863 BWI → MSP Jul 12, 01:32 UTCJul 12, 03:44 UTC2h 13m
2026-07-11 SWA863 - Jul 11, 22:15 UTCJul 12, 00:30 UTC2h 15m
2026-07-11 SWA947 - Jul 11, 18:40 UTCJul 11, 20:40 UTC2h 0m
2026-07-11 SWA947 BWI → FLL Jul 11, 18:39 UTCJul 11, 20:43 UTC2h 4m
2026-07-11 SWA3458 - Jul 11, 16:35 UTCJul 11, 17:25 UTC50m
2026-07-11 SWA1079 - Jul 11, 14:45 UTCJul 11, 15:30 UTC45m
2026-07-11 SWA1899 - Jul 11, 12:40 UTCJul 11, 13:45 UTC1h 5m
2026-07-11 SWA1899 GSP → BWI Jul 11, 12:35 UTCJul 11, 13:41 UTC1h 7m
2026-07-11 SWA4437 - Jul 11, 00:20 UTCJul 11, 01:15 UTC55m
2026-07-11 SWA4437 BWI → GSP Jul 11, 00:20 UTCJul 11, 01:19 UTC59m
2026-07-10 SWA3414 - Jul 10, 21:50 UTCJul 10, 23:05 UTC1h 15m
2026-07-10 SWA3414 PWM → BWI Jul 10, 21:45 UTCJul 10, 23:08 UTC1h 23m
2026-07-10 SWA297 - Jul 10, 19:50 UTCJul 10, 20:45 UTC55m
2026-07-10 SWA297 - Jul 10, 18:05 UTCJul 10, 18:50 UTC45m
2026-07-10 SWA297 STL → RDU Jul 10, 15:15 UTCJul 10, 16:50 UTC1h 35m
2026-07-10 SWA4853 DCA → STL Jul 10, 12:30 UTCJul 10, 14:20 UTC1h 50m
2026-07-09 SWA3014 - Jul 9, 23:00 UTCJul 10, 01:35 UTC2h 35m
2026-07-09 SWA3014 - Jul 9, 18:05 UTCJul 9, 21:05 UTC3h 0m
2026-07-09 SWA3014 - Jul 9, 16:05 UTCJul 9, 17:00 UTC55m
2026-07-09 SWA4582 - Jul 9, 13:35 UTCJul 9, 14:55 UTC1h 20m
2026-07-09 SWA4582 - Jul 9, 11:05 UTCJul 9, 11:55 UTC50m
2026-07-09 SWA3846 - Jul 9, 01:00 UTCJul 9, 03:20 UTC2h 20m
2026-07-08 SWA3846 - Jul 8, 23:10 UTCJul 8, 23:55 UTC45m
2026-07-08 SWA2437 - Jul 8, 21:00 UTCJul 8, 21:40 UTC40m
2026-07-07 SWA2203 - Jul 7, 18:15 UTCJul 7, 19:05 UTC50m
2026-07-07 SWA1738 - Jul 7, 16:05 UTCJul 7, 17:15 UTC1h 10m
2026-07-07 SWA1738 DEN → SMF Jul 7, 13:00 UTCJul 7, 15:00 UTC2h 0m
2026-07-07 SWA2394 - Jul 7, 05:30 UTCJul 7, 07:25 UTC1h 55m
2026-07-07 SWA3681 - Jul 7, 03:45 UTCJul 7, 04:40 UTC55m
2026-07-07 SWA3164 - Jul 7, 02:00 UTCJul 7, 02:50 UTC50m
2026-07-07 SWA3691 - Jul 7, 00:25 UTCJul 7, 01:15 UTC50m

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 N904WN page for operator, model, and routing details .

Mode-S AC8009 frequently asked

What is Mode-S code AC8009?
AC8009 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N904WN.
Where is Mode-S AC8009 registered?
Mode-S code AC8009 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 AC8009 broadcasting right now?
Yes. Mode-S AC8009 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC8009, octal 53100011, decimal 11,304,969.
What flights does AC8009 operate?
Mode-S AC8009 has broadcast 20 distinct callsigns, including SWA1219, SWA301, SWA300, SWA169, SWA3958.