Apparatus

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sensors Mode-S transponder

A5D1F7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N474WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A5D1F7
Octal
51350767
Decimal
10,867,191
Country
US
Tail
N474WN
Type
B737
No current signal · last broadcast 2h ago
Flights observed
484
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A5D1F7.

Country allocation

The ICAO 24-bit address A5D1F7 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
SWA2970 Southwest Airlines 6 2026-04-19
SWA3062 - 5 2026-07-03
SWA1037 - 5 2026-06-27
SWA8502 Southwest Airlines 4 2026-05-16
SWA670 - 4 2026-06-18
SWA63 Southwest Airlines 4 2026-04-18
SWA3684 - 4 2026-07-04
SWA300 - 4 2026-07-13
SWA25 Southwest Airlines 4 2026-05-13
SWA2414 - 4 2026-07-11
SWA1909 Southwest Airlines 4 2026-05-20
SWA1577 - 4 2026-06-23
SWA1297 - 4 2026-07-06
SWA1005 Southwest Airlines 4 2026-06-05
SWA8 Southwest Airlines 3 2026-05-14
SWA757 Southwest Airlines 3 2026-05-29
SWA712 - 3 2026-07-02
SWA585 Southwest Airlines 3 2026-06-06
SWA434 Southwest Airlines 3 2026-06-15
SWA4301 Southwest Airlines 3 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA4749 - Jul 13, 22:50 UTCJul 14, 01:25 UTC2h 35m
2026-07-13 SWA743 - Jul 13, 19:15 UTCJul 13, 22:00 UTC2h 45m
2026-07-13 SWA743 BOS → MCI Jul 13, 19:15 UTCJul 13, 21:57 UTC2h 42m
2026-07-13 SWA4560 BNA → BOS Jul 13, 15:50 UTCJul 13, 18:00 UTC2h 10m
2026-07-13 SWA4560 BNA → BOS Jul 13, 15:46 UTCJul 13, 17:56 UTC2h 10m
2026-07-13 SWA1528 MSP → BNA Jul 13, 12:20 UTCJul 13, 14:00 UTC1h 40m
2026-07-13 SWA300 DEN → MSP Jul 13, 03:40 UTCJul 13, 05:10 UTC1h 30m
2026-07-13 SWA300 LAS → DEN Jul 13, 00:50 UTCJul 13, 02:20 UTC1h 30m
2026-07-12 SWA300 - Jul 12, 22:35 UTCJul 12, 23:20 UTC45m
2026-07-12 SWA300 SMF → ONT Jul 12, 20:35 UTCJul 12, 21:35 UTC1h 0m
2026-07-12 SWA849 BUR → SMF Jul 12, 18:15 UTCJul 12, 19:10 UTC55m
2026-07-12 SWA849 BUR → SMF Jul 12, 18:14 UTCJul 12, 19:07 UTC53m
2026-07-12 SWA4707 LAS → BUR Jul 12, 16:35 UTCJul 12, 17:20 UTC45m
2026-07-12 SWA2325 OAK → LAS Jul 12, 12:25 UTCJul 12, 13:30 UTC1h 5m
2026-07-12 SWA333 - Jul 12, 04:10 UTCJul 12, 05:05 UTC55m
2026-07-12 SWA333 SNA → OAK Jul 12, 04:06 UTCJul 12, 04:58 UTC53m
2026-07-12 SWA3354 - Jul 12, 02:40 UTCJul 12, 03:25 UTC45m
2026-07-12 SWA819 BUR → PHX Jul 12, 00:20 UTCJul 12, 01:30 UTC1h 10m
2026-07-11 SWA4115 STL → BUR Jul 11, 19:50 UTCJul 11, 23:10 UTC3h 20m
2026-07-11 SWA2031 - Jul 11, 15:30 UTCJul 11, 18:45 UTC3h 15m
2026-07-11 SWA2031 PDX → STL Jul 11, 15:27 UTCJul 11, 18:37 UTC3h 10m
2026-07-11 SWA2031 SMF → PDX Jul 11, 13:15 UTCJul 11, 14:20 UTC1h 5m
2026-07-11 SWA3551 - Jul 11, 05:05 UTCJul 11, 06:10 UTC1h 5m
2026-07-11 SWA3551 SAN → SMF Jul 11, 05:03 UTCJul 11, 06:09 UTC1h 6m
2026-07-11 SWA3551 - Jul 11, 03:10 UTCJul 11, 04:01 UTC50m
2026-07-11 SWA2414 LAS → TUS Jul 11, 00:25 UTCJul 11, 01:20 UTC55m
2026-07-11 SWA2414 LAS → TUS Jul 11, 00:23 UTCJul 11, 01:20 UTC57m
2026-07-10 SWA2414 - Jul 10, 22:35 UTCJul 10, 23:20 UTC45m
2026-07-10 SWA2414 SMF → LGB Jul 10, 20:20 UTCJul 10, 21:25 UTC1h 5m
2026-07-10 SWA1740 DEN → SMF Jul 10, 16:35 UTCJul 10, 18:45 UTC2h 10m
2026-07-10 SWA1828 EUG → DEN Jul 10, 13:20 UTCJul 10, 15:25 UTC2h 5m
2026-07-10 SWA1828 EUG → DEN Jul 10, 13:18 UTCJul 10, 15:20 UTC2h 2m
2026-07-10 SWA291 SMF → EUG Jul 10, 04:10 UTCJul 10, 05:00 UTC50m
2026-07-10 SWA291 SMF → EUG Jul 10, 04:06 UTCJul 10, 04:58 UTC52m
2026-07-10 SWA717 - Jul 10, 02:15 UTCJul 10, 03:15 UTC1h 0m
2026-07-09 SWA776 - Jul 9, 23:45 UTCJul 10, 01:10 UTC1h 25m
2026-07-09 SWA776 BUR → BOI Jul 9, 23:40 UTCJul 10, 01:05 UTC1h 25m
2026-07-09 SWA4931 - Jul 9, 21:50 UTCJul 9, 22:40 UTC50m
2026-07-09 SWA836 - Jul 9, 20:05 UTCJul 9, 20:55 UTC50m
2026-07-09 SWA3635 SFO → BUR Jul 9, 18:35 UTCJul 9, 19:25 UTC50m
2026-07-09 SWA3635 SFO → BUR Jul 9, 18:35 UTCJul 9, 19:20 UTC45m
2026-07-09 SWA4363 AUS → SFO Jul 9, 14:25 UTCJul 9, 17:40 UTC3h 15m
2026-07-09 SWA4363 ATL → AUS Jul 9, 10:05 UTCJul 9, 11:55 UTC1h 50m
2026-07-09 SWA447 BNA → ATL Jul 9, 01:05 UTCJul 9, 01:45 UTC40m
2026-07-09 SWA447 BNA → ATL Jul 9, 01:04 UTCJul 9, 01:46 UTC42m
2026-07-08 SWA4005 - Jul 8, 21:15 UTCJul 8, 22:40 UTC1h 25m
2026-07-08 SWA1872 - Jul 8, 18:10 UTCJul 8, 20:15 UTC2h 5m
2026-07-08 SWA4252 AUS → BWI Jul 8, 14:05 UTCJul 8, 16:55 UTC2h 50m
2026-07-08 SWA4252 AUS → BWI Jul 8, 14:01 UTCJul 8, 16:53 UTC2h 52m
2026-07-08 SWA2444 - Jul 8, 12:10 UTCJul 8, 12:55 UTC45m

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 N474WN page for operator, model, and routing details .

Mode-S A5D1F7 frequently asked

What is Mode-S code A5D1F7?
A5D1F7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N474WN.
Where is Mode-S A5D1F7 registered?
Mode-S code A5D1F7 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 A5D1F7 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5D1F7, octal 51350767, decimal 10,867,191.
What flights does A5D1F7 operate?
Mode-S A5D1F7 has broadcast 20 distinct callsigns, including SWA2970, SWA3062, SWA1037, SWA8502, SWA670.