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sensors Mode-S transponder

A5A6C1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N463WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A5A6C1
Octal
51323301
Decimal
10,856,129
Country
US
Tail
N463WN
Type
B737
Broadcasting now · callsign SWA417 · 31,375 ft
Flights observed
640
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A5A6C1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A5A6C1 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
SWA2335 Southwest Airlines 8 2026-05-09
SWA1776 Southwest Airlines 8 2026-04-24
SWA263 Southwest Airlines 7 2026-05-18
SWA2384 - 7 2026-07-10
SWA3968 - 6 2026-04-13
SWA470 Southwest Airlines 5 2026-05-07
SWA2451 - 5 2026-06-25
SWA869 Southwest Airlines 4 2026-04-15
SWA4561 Southwest Airlines 4 2026-04-24
SWA4389 - 4 2026-06-26
SWA3913 Southwest Airlines 4 2026-04-23
SWA3473 Southwest Airlines 4 2026-06-30
SWA3335 Southwest Airlines 4 2026-05-28
SWA2273 - 4 2026-07-08
SWA2178 - 4 2026-06-19
SWA1779 - 4 2026-07-06
SWA1372 - 4 2026-04-14
SWA1192 Southwest Airlines 4 2026-04-14
SWA1157 Southwest Airlines 4 2026-06-14
SWA978 Southwest Airlines 3 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA546 - Jul 14, 17:30 UTCJul 14, 20:15 UTC2h 45m
2026-07-14 SWA1761 - Jul 14, 15:05 UTCJul 14, 16:15 UTC1h 10m
2026-07-14 SWA1761 - Jul 14, 12:50 UTCJul 14, 13:35 UTC45m
2026-07-14 SWA3438 - Jul 14, 10:20 UTCJul 14, 10:45 UTC25m
2026-07-14 SWA3438 RIC → BWI Jul 14, 10:16 UTCJul 14, 10:43 UTC27m
2026-07-14 SWA2875 - Jul 14, 03:15 UTCJul 14, 04:45 UTC1h 30m
2026-07-14 SWA2875 MSY → MDW Jul 14, 00:10 UTCJul 14, 02:15 UTC2h 5m
2026-07-13 SWA3743 - Jul 13, 21:10 UTCJul 13, 23:05 UTC1h 55m
2026-07-13 SWA3743 MSP → MDW Jul 13, 19:05 UTCJul 13, 20:10 UTC1h 5m
2026-07-13 SWA2869 - Jul 13, 17:10 UTCJul 13, 18:10 UTC1h 0m
2026-07-13 SWA2869 - Jul 13, 13:50 UTCJul 13, 16:05 UTC2h 15m
2026-07-13 SWA3022 MSY → TPA Jul 13, 11:20 UTCJul 13, 12:30 UTC1h 10m
2026-07-13 SWA597 BNA → MSY Jul 13, 04:10 UTCJul 13, 05:20 UTC1h 10m
2026-07-13 SWA2338 BOS → BNA Jul 13, 00:30 UTCJul 13, 02:45 UTC2h 15m
2026-07-12 SWA4372 BNA → BOS Jul 12, 21:15 UTCJul 12, 23:35 UTC2h 20m
2026-07-12 SWA258 AUS → BNA Jul 12, 18:15 UTCJul 12, 20:10 UTC1h 55m
2026-07-12 SWA258 AUS → BNA Jul 12, 18:15 UTCJul 12, 19:54 UTC1h 39m
2026-07-12 SWA2727 - Jul 12, 15:05 UTCJul 12, 17:05 UTC2h 0m
2026-07-12 SWA2727 MDW → AUS Jul 12, 15:03 UTCJul 12, 17:01 UTC1h 58m
2026-07-12 SWA3732 - Jul 12, 12:15 UTCJul 12, 13:55 UTC1h 40m
2026-07-12 SWA1709 - Jul 12, 00:05 UTCJul 12, 01:30 UTC1h 25m
2026-07-11 SWA3411 - Jul 11, 20:35 UTCJul 11, 23:00 UTC2h 25m
2026-07-11 SWA244 - Jul 11, 16:30 UTCJul 11, 19:15 UTC2h 45m
2026-07-11 SWA487 - Jul 11, 13:50 UTCJul 11, 15:10 UTC1h 20m
2026-07-11 SWA487 - Jul 11, 11:25 UTCJul 11, 12:20 UTC55m
2026-07-11 SWA892 - Jul 11, 02:55 UTCJul 11, 03:55 UTC1h 0m
2026-07-10 SWA2384 - Jul 10, 20:45 UTCJul 11, 01:15 UTC4h 30m
2026-07-10 SWA2384 LAX → BWI Jul 10, 20:43 UTCJul 11, 01:13 UTC4h 30m
2026-07-10 SWA2384 - Jul 10, 18:50 UTCJul 10, 19:45 UTC55m
2026-07-10 SWA2384 DEN → SJC Jul 10, 15:45 UTCJul 10, 17:50 UTC2h 5m
2026-07-10 SWA2384 ABQ → DEN Jul 10, 13:40 UTCJul 10, 14:30 UTC50m
2026-07-10 SWA2384 AUS → ABQ Jul 10, 11:10 UTCJul 10, 12:30 UTC1h 20m
2026-07-10 SWA1953 - Jul 10, 04:00 UTCJul 10, 04:25 UTC25m
2026-07-10 SWA57 - Jul 10, 01:40 UTCJul 10, 02:25 UTC45m
2026-07-09 SWA57 - Jul 9, 23:40 UTCJul 10, 00:35 UTC55m
2026-07-09 SWA4995 - Jul 9, 21:20 UTCJul 9, 22:20 UTC1h 0m
2026-07-09 SWA871 - Jul 9, 19:45 UTCJul 9, 19:55 UTC10m
2026-07-09 SWA871 SJD → HOU Jul 9, 17:08 UTCJul 9, 19:27 UTC2h 19m
2026-07-09 SWA871 - Jul 9, 14:00 UTCJul 9, 19:55 UTC5h 55m
2026-07-09 SWA4729 - Jul 9, 10:45 UTCJul 9, 12:20 UTC1h 35m
2026-07-09 SWA274 - Jul 9, 02:10 UTCJul 9, 03:50 UTC1h 40m
2026-07-08 SWA59 - Jul 8, 23:45 UTCJul 9, 01:25 UTC1h 40m
2026-07-08 SWA2273 - Jul 8, 19:15 UTCJul 8, 22:20 UTC3h 5m
2026-07-08 SWA2273 SMF → LAS Jul 8, 17:05 UTCJul 8, 18:05 UTC1h 0m
2026-07-08 SWA4802 PHX → FLL Jul 8, 15:00 UTCJul 8, 16:00 UTC1h 0m
2026-07-08 SWA2396 - Jul 8, 04:05 UTCJul 8, 05:05 UTC1h 0m
2026-07-08 SWA3487 - Jul 8, 00:50 UTCJul 8, 02:15 UTC1h 25m
2026-07-08 SWA3487 SEA → OAK Jul 8, 00:50 UTCJul 8, 02:30 UTC1h 40m
2026-07-07 SWA4769 - Jul 7, 21:10 UTCJul 7, 23:20 UTC2h 10m
2026-07-07 SWA4769 SAN → SEA Jul 7, 21:09 UTCJul 7, 23:17 UTC2h 9m

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 N463WN page for operator, model, and routing details .

Mode-S A5A6C1 frequently asked

What is Mode-S code A5A6C1?
A5A6C1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N463WN.
Where is Mode-S A5A6C1 registered?
Mode-S code A5A6C1 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 A5A6C1 broadcasting right now?
Yes. Mode-S A5A6C1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5A6C1, octal 51323301, decimal 10,856,129.
What flights does A5A6C1 operate?
Mode-S A5A6C1 has broadcast 20 distinct callsigns, including SWA2335, SWA1776, SWA263, SWA2384, SWA3968.