Apparatus

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sensors Mode-S transponder

AC2FC3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8845L · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC2FC3
Octal
53027703
Decimal
11,284,419
Country
US
Tail
N8845L
Type
B38M
No current signal · last broadcast Jul 26, 22:40 UTC
Flights observed
710
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:40 UTC

Last known position

Most recent position reported by Mode-S AC2FC3.

Country allocation

The ICAO 24-bit address AC2FC3 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
SWA2732 - 6 2026-06-24
SWA1474 - 5 2026-06-26
SWA4250 - 4 2026-06-23
SWA3521 Southwest Airlines 4 2026-05-11
SWA3309 Southwest Airlines 4 2026-06-07
SWA1874 - 4 2026-06-21
SWA1813 - 4 2026-07-15
SWA988 - 3 2026-07-12
SWA899 Southwest Airlines 3 2026-06-18
SWA784 - 3 2026-07-11
SWA697 Southwest Airlines 3 2026-05-13
SWA651 - 3 2026-07-18
SWA4470 - 3 2026-07-10
SWA4422 Southwest Airlines 3 2026-04-26
SWA4249 - 3 2026-07-18
SWA4101 Southwest Airlines 3 2026-05-21
SWA368 Southwest Airlines 3 2026-07-18
SWA3609 Southwest Airlines 3 2026-06-10
SWA359 Southwest Airlines 3 2026-06-30
SWA2967 Southwest Airlines 3 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1390 SFO → SAN Jul 26, 21:00 UTCJul 26, 22:30 UTC1h 30m
2026-07-26 SWA499 SAN → OAK Jul 26, 18:45 UTCJul 26, 19:45 UTC1h 0m
2026-07-26 SWA187 BWI → MHT Jul 26, 16:45 UTCJul 26, 17:25 UTC40m
2026-07-26 SWA439 TPA → MSY Jul 26, 14:00 UTCJul 26, 15:25 UTC1h 25m
2026-07-26 SWA4071 LAS → SAT Jul 26, 11:10 UTCJul 26, 12:50 UTC1h 40m
2026-07-26 SWA4880 ATL → STL Jul 26, 01:55 UTCJul 26, 03:10 UTC1h 15m
2026-07-25 SWA3236 ATL → DCA Jul 25, 22:45 UTCJul 26, 00:45 UTC2h 0m
2026-07-25 SWA3236 ATL → DCA Jul 25, 22:42 UTCJul 26, 00:45 UTC2h 4m
2026-07-25 SWA176 BNA → TPA Jul 25, 19:20 UTCJul 25, 21:20 UTC2h 0m
2026-07-25 SWA1072 DEN → BOS Jul 25, 15:50 UTCJul 25, 18:15 UTC2h 25m
2026-07-25 SWA1041 ORF → BNA Jul 25, 12:40 UTCJul 25, 14:35 UTC1h 55m
2026-07-25 SWA4376 PHX → ICT Jul 25, 10:10 UTCJul 25, 10:45 UTC35m
2026-07-25 SWA4376 PHX → ICT Jul 25, 10:05 UTCJul 25, 10:55 UTC50m
2026-07-25 SWA4808 BWI → CHS Jul 25, 02:34 UTCJul 25, 06:33 UTC3h 59m
2026-07-25 SWA4808 BWI → CHS Jul 25, 02:35 UTCJul 25, 06:35 UTC4h 0m
2026-07-24 SWA3076 BOS → BWI Jul 24, 22:40 UTCJul 24, 23:55 UTC1h 15m
2026-07-24 SWA143 LAS → SAN Jul 24, 18:40 UTCJul 24, 20:35 UTC1h 55m
2026-07-24 SWA143 LAS → SAN Jul 24, 18:37 UTCJul 24, 20:33 UTC1h 57m
2026-07-24 SWA1253 SAN → OAK Jul 24, 16:00 UTCJul 24, 17:20 UTC1h 20m
2026-07-24 SWA1253 SAN → OAK Jul 24, 16:00 UTCJul 24, 17:25 UTC1h 25m
2026-07-24 SWA4741 SJC → DEN Jul 24, 13:40 UTCJul 24, 15:00 UTC1h 20m
2026-07-24 SWA4741 SJC → DEN Jul 24, 13:26 UTCJul 24, 14:50 UTC1h 24m
2026-07-24 SWA2006 OAK → BUR Jul 24, 11:20 UTCJul 24, 12:15 UTC55m
2026-07-24 SWA3476 SJC → DEN Jul 24, 00:45 UTCJul 24, 03:15 UTC2h 30m
2026-07-23 SWA4242 MDW → STL Jul 23, 22:20 UTCJul 23, 23:35 UTC1h 15m
2026-07-23 SWA1719 SJC → HNL Jul 23, 18:35 UTCJul 23, 20:45 UTC2h 10m
2026-07-23 SWA2230 SFO → LAX Jul 23, 05:10 UTCJul 23, 06:35 UTC1h 25m
2026-07-23 SWA2230 SFO → LAX Jul 23, 05:06 UTCJul 23, 06:25 UTC1h 19m
2026-07-23 SWA4056 PHX → MKE Jul 23, 01:35 UTCJul 23, 03:55 UTC2h 20m
2026-07-22 SWA4635 MDW → ALB Jul 22, 23:15 UTCJul 23, 00:25 UTC1h 10m
2026-07-22 SWA4635 MDW → ALB Jul 22, 23:11 UTCJul 23, 00:23 UTC1h 12m
2026-07-22 SWA2967 BUR → PHX Jul 22, 19:30 UTCJul 22, 21:10 UTC1h 40m
2026-07-22 SWA3973 CLE → PHX Jul 22, 16:55 UTCJul 22, 18:25 UTC1h 30m
2026-07-22 SWA1424 BWI → BDL Jul 22, 12:45 UTCJul 22, 14:50 UTC2h 5m
2026-07-22 SWA2345 DEN → OAK Jul 22, 04:55 UTCJul 22, 05:25 UTC30m
2026-07-22 SWA2345 DEN → OAK Jul 22, 04:50 UTCJul 22, 05:54 UTC1h 4m
2026-07-22 SWA1862 ATL → MSY Jul 22, 01:55 UTCJul 22, 03:05 UTC1h 10m
2026-07-21 SWA2755 ELP → SAN Jul 21, 23:55 UTCJul 22, 01:05 UTC1h 10m
2026-07-21 SWA2755 ELP → SAN Jul 21, 21:25 UTCJul 21, 22:15 UTC50m
2026-07-21 SWA4484 SNA → OAK Jul 21, 19:35 UTCJul 21, 20:30 UTC55m
2026-07-21 SWA4484 SNA → OAK Jul 21, 19:34 UTCJul 21, 20:25 UTC51m
2026-07-21 SWA4701 OAK → LAX Jul 21, 15:20 UTCJul 21, 18:25 UTC3h 5m
2026-07-21 SWA4387 SJC → BUR Jul 21, 13:25 UTCJul 21, 14:15 UTC50m
2026-07-21 SWA4387 SJC → BUR Jul 21, 13:22 UTCJul 21, 14:15 UTC53m
2026-07-21 SWA2914 - Jul 21, 11:00 UTCJul 21, 12:10 UTC1h 10m
2026-07-21 SWA580 BNA → MEM Jul 21, 04:25 UTCJul 21, 05:05 UTC40m
2026-07-21 SWA1488 SJC → PHX Jul 21, 01:05 UTCJul 21, 03:05 UTC2h 0m
2026-07-21 SWA1488 SJC → PHX Jul 21, 01:00 UTCJul 21, 03:02 UTC2h 2m
2026-07-20 SWA3147 LGB → SJC Jul 20, 22:10 UTCJul 21, 00:00 UTC1h 49m
2026-07-20 SWA2846 - Jul 20, 17:15 UTCJul 20, 20:55 UTC3h 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 N8845L page for operator, model, and routing details .

Mode-S AC2FC3 frequently asked

What is Mode-S code AC2FC3?
AC2FC3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8845L.
Where is Mode-S AC2FC3 registered?
Mode-S code AC2FC3 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 AC2FC3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC2FC3, octal 53027703, decimal 11,284,419.
What flights does AC2FC3 operate?
Mode-S AC2FC3 has broadcast 20 distinct callsigns, including SWA2732, SWA1474, SWA4250, SWA3521, SWA3309.