Apparatus

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sensors Mode-S transponder

A1CA5F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N214WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A1CA5F
Octal
50345137
Decimal
10,603,103
Country
US
Tail
N214WN
Type
B737
Broadcasting now · callsign SWA3118 · 33,750 ft
Flights observed
656
Distinct callsigns
20
Country
US
Last broadcast
10h ago

Current position

A1CA5F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A1CA5F 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
SWA845 - 6 2026-06-29
SWA2699 Southwest Airlines 6 2026-04-13
SWA576 Southwest Airlines 5 2026-05-28
SWA342 - 5 2026-07-11
SWA2664 - 5 2026-06-18
SWA2658 - 5 2026-07-04
SWA937 - 4 2026-06-16
SWA721 - 4 2026-06-27
SWA483 - 4 2026-06-23
SWA4633 - 4 2026-06-21
SWA2951 Southwest Airlines 4 2026-06-05
SWA2636 - 4 2026-06-27
SWA2278 Southwest Airlines 4 2026-04-22
SWA1896 Southwest Airlines 4 2026-05-09
SWA1871 Southwest Airlines 4 2026-04-14
SWA1776 Southwest Airlines 4 2026-06-02
SWA1564 - 4 2026-06-22
SWA1188 - 4 2026-06-29
SWA910 - 3 2026-06-22
SWA869 Southwest Airlines 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA2775 TPA → PVD Jul 14, 21:55 UTCJul 15, 00:30 UTC2h 34m
2026-07-14 SWA4546 - Jul 14, 18:50 UTCJul 14, 20:55 UTC2h 5m
2026-07-14 SWA2031 - Jul 14, 16:10 UTCJul 14, 17:40 UTC1h 30m
2026-07-14 SWA3801 - Jul 14, 13:30 UTCJul 14, 15:15 UTC1h 45m
2026-07-14 SWA3801 MDW → ORF Jul 14, 13:27 UTCJul 14, 15:10 UTC1h 43m
2026-07-14 SWA257 - Jul 14, 06:15 UTCJul 14, 09:50 UTC3h 35m
2026-07-14 SWA1402 - Jul 14, 02:50 UTCJul 14, 05:15 UTC2h 25m
2026-07-14 SWA1402 - Jul 14, 01:20 UTCJul 14, 02:00 UTC40m
2026-07-13 SWA1402 MCO → DAL Jul 13, 21:35 UTCJul 13, 23:55 UTC2h 20m
2026-07-13 SWA762 - Jul 13, 16:50 UTCJul 13, 19:00 UTC2h 10m
2026-07-13 SWA762 - Jul 13, 15:05 UTCJul 13, 15:55 UTC50m
2026-07-13 SWA4550 - Jul 13, 12:50 UTCJul 13, 13:35 UTC45m
2026-07-13 SWA161 - Jul 13, 03:05 UTCJul 13, 03:50 UTC45m
2026-07-13 SWA654 - Jul 13, 00:45 UTCJul 13, 02:05 UTC1h 20m
2026-07-12 SWA654 STL → SAV Jul 12, 21:45 UTCJul 12, 23:20 UTC1h 35m
2026-07-12 SWA1371 - Jul 12, 20:15 UTCJul 12, 21:05 UTC50m
2026-07-12 SWA1371 BNA → STL Jul 12, 20:13 UTCJul 12, 21:02 UTC49m
2026-07-12 SWA237 - Jul 12, 17:55 UTCJul 12, 19:05 UTC1h 10m
2026-07-12 SWA237 CHS → BNA Jul 12, 17:55 UTCJul 12, 19:02 UTC1h 7m
2026-07-12 SWA469 - Jul 12, 15:45 UTCJul 12, 16:50 UTC1h 5m
2026-07-12 SWA4051 - Jul 12, 12:40 UTCJul 12, 13:55 UTC1h 15m
2026-07-12 SWA4051 TUL → BNA Jul 12, 12:36 UTCJul 12, 13:46 UTC1h 10m
2026-07-12 SWA696 - Jul 12, 04:30 UTCJul 12, 05:45 UTC1h 15m
2026-07-12 SWA1845 - Jul 12, 00:40 UTCJul 12, 01:40 UTC1h 0m
2026-07-11 SWA4594 - Jul 11, 23:00 UTCJul 11, 23:50 UTC50m
2026-07-11 SWA1677 - Jul 11, 18:10 UTCJul 11, 21:45 UTC3h 35m
2026-07-11 SWA1677 SAN → MDW Jul 11, 18:10 UTCJul 11, 21:41 UTC3h 31m
2026-07-11 SWA1677 PHX → SAN Jul 11, 16:15 UTCJul 11, 17:05 UTC50m
2026-07-11 SWA2721 - Jul 11, 14:05 UTCJul 11, 15:05 UTC1h 0m
2026-07-11 SWA2721 LGB → PHX Jul 11, 14:01 UTCJul 11, 15:01 UTC1h 0m
2026-07-11 SWA4907 RHV → LGB Jul 11, 03:15 UTCJul 11, 04:10 UTC55m
2026-07-11 SWA342 - Jul 11, 01:35 UTCJul 11, 02:25 UTC50m
2026-07-10 SWA342 - Jul 10, 23:55 UTCJul 11, 00:30 UTC35m
2026-07-10 SWA342 - Jul 10, 21:25 UTCJul 10, 23:05 UTC1h 40m
2026-07-10 SWA342 - Jul 10, 20:00 UTCJul 10, 20:45 UTC45m
2026-07-10 SWA342 - Jul 10, 16:50 UTCJul 10, 19:05 UTC2h 15m
2026-07-10 SWA2160 BNA → MSP Jul 10, 14:10 UTCJul 10, 15:50 UTC1h 40m
2026-07-10 SWA179 ATL → BNA Jul 10, 12:00 UTCJul 10, 12:50 UTC50m
2026-07-10 SWA4968 DCA → ATL Jul 10, 03:10 UTCJul 10, 04:30 UTC1h 20m
2026-07-10 SWA324 TPA → DCA Jul 10, 00:30 UTCJul 10, 02:15 UTC1h 45m
2026-07-09 SWA4442 - Jul 9, 17:35 UTCJul 9, 18:55 UTC1h 20m
2026-07-09 SWA4442 - Jul 9, 15:55 UTCJul 9, 16:45 UTC50m
2026-07-09 SWA2458 - Jul 9, 13:25 UTCJul 9, 14:25 UTC1h 0m
2026-07-09 SWA857 - Jul 9, 11:15 UTCJul 9, 12:10 UTC55m
2026-07-09 SWA3143 - Jul 9, 04:55 UTCJul 9, 09:40 UTC4h 45m
2026-07-09 SWA2015 LAS → ONT Jul 9, 02:35 UTCJul 9, 03:10 UTC35m
2026-07-09 SWA2404 LAX → LAS Jul 9, 00:30 UTCJul 9, 01:15 UTC45m
2026-07-08 SWA3176 PHX → LAX Jul 8, 22:21 UTCJul 8, 23:16 UTC55m
2026-07-08 SWA3176 - Jul 8, 22:25 UTCJul 8, 23:15 UTC50m
2026-07-08 SWA1920 PHX → SJD Jul 8, 16:00 UTCJul 8, 20:30 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 N214WN page for operator, model, and routing details .

Mode-S A1CA5F frequently asked

What is Mode-S code A1CA5F?
A1CA5F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N214WN.
Where is Mode-S A1CA5F registered?
Mode-S code A1CA5F 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 A1CA5F broadcasting right now?
Yes. Mode-S A1CA5F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1CA5F, octal 50345137, decimal 10,603,103.
What flights does A1CA5F operate?
Mode-S A1CA5F has broadcast 20 distinct callsigns, including SWA845, SWA2699, SWA576, SWA342, SWA2664.