Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 Jul 26, 21:45 UTC
Flights observed
592
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

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
SWA4301 Southwest Airlines 6 2026-07-23
SWA2970 Southwest Airlines 6 2026-04-19
SWA540 Southwest Airlines 5 2026-07-24
SWA434 Southwest Airlines 5 2026-07-23
SWA4 - 5 2026-07-17
SWA3551 Southwest Airlines 5 2026-07-25
SWA3062 - 5 2026-07-03
SWA2414 Southwest Airlines 5 2026-07-25
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
SWA3438 - 4 2026-07-15
SWA300 - 4 2026-07-13
SWA25 Southwest Airlines 4 2026-05-13
SWA246 Southwest Airlines 4 2026-07-21
SWA1909 Southwest Airlines 4 2026-05-20
SWA1577 - 4 2026-06-23
SWA1297 - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2433 BOS → DEN Jul 26, 20:05 UTCJul 26, 20:55 UTC50m
2026-07-26 SWA3151 MHT → MCO Jul 26, 18:15 UTCJul 26, 19:10 UTC55m
2026-07-26 SWA4509 PHX → SMF Jul 26, 16:15 UTCJul 26, 17:10 UTC55m
2026-07-26 SWA4509 PHX → SMF Jul 26, 10:30 UTCJul 26, 15:05 UTC4h 35m
2026-07-26 SWA1501 OAK → PHX Jul 26, 06:05 UTCJul 26, 09:00 UTC2h 56m
2026-07-26 SWA1501 OAK → PHX Jul 26, 06:02 UTCJul 26, 08:51 UTC2h 49m
2026-07-26 SWA4176 SJC → SAN Jul 26, 02:10 UTCJul 26, 03:55 UTC1h 45m
2026-07-26 SWA4176 SJC → SAN Jul 26, 02:09 UTCJul 26, 03:55 UTC1h 46m
2026-07-25 SWA1205 LAX → SJC Jul 25, 17:10 UTCJul 25, 23:50 UTC6h 40m
2026-07-25 SWA3758 AUS → MSY Jul 25, 12:35 UTCJul 25, 15:40 UTC3h 5m
2026-07-25 SWA3551 LAS → DEN Jul 25, 06:30 UTCJul 25, 07:40 UTC1h 10m
2026-07-25 SWA3551 LAS → DEN Jul 25, 04:50 UTCJul 25, 05:50 UTC1h 0m
2026-07-25 SWA2414 LAS → SJC Jul 25, 02:40 UTCJul 25, 03:35 UTC55m
2026-07-24 SWA978 LAX → LAS Jul 24, 20:50 UTCJul 25, 01:20 UTC4h 30m
2026-07-24 SWA1458 OAK → LAS Jul 24, 17:45 UTCJul 24, 19:40 UTC1h 55m
2026-07-24 SWA1458 OAK → LAS Jul 24, 14:35 UTCJul 24, 16:45 UTC2h 10m
2026-07-24 SWA1662 BOS → BWI Jul 24, 11:00 UTCJul 24, 13:10 UTC2h 10m
2026-07-24 SWA1662 BOS → BWI Jul 24, 10:57 UTCJul 24, 13:11 UTC2h 14m
2026-07-24 SWA4451 MCO → BNA Jul 24, 04:00 UTCJul 24, 04:35 UTC35m
2026-07-24 SWA540 LAS → SBA Jul 24, 01:50 UTCJul 24, 02:40 UTC50m
2026-07-24 SWA540 LAS → SBA Jul 24, 01:41 UTCJul 24, 02:38 UTC58m
2026-07-24 SWA540 LAS → SBA Jul 24, 00:15 UTCJul 24, 00:45 UTC30m
2026-07-23 SWA4301 HOU → OAK Jul 23, 22:05 UTCJul 23, 22:55 UTC50m
2026-07-23 SWA4301 HOU → OAK Jul 23, 22:00 UTCJul 23, 22:47 UTC47m
2026-07-23 SWA4301 HOU → OAK Jul 23, 20:30 UTCJul 23, 21:05 UTC35m
2026-07-23 SWA4328 DEN → CLT Jul 23, 17:55 UTCJul 23, 19:15 UTC1h 20m
2026-07-23 SWA434 LAX → SJC Jul 23, 16:20 UTCJul 23, 16:50 UTC30m
2026-07-23 SWA434 LAX → SJC Jul 23, 13:30 UTCJul 23, 14:55 UTC1h 25m
2026-07-23 SWA1353 TPA → HOU Jul 23, 11:40 UTCJul 23, 12:25 UTC45m
2026-07-23 SWA3846 RNO → LAS Jul 23, 01:15 UTCJul 23, 03:30 UTC2h 15m
2026-07-23 SWA3846 RNO → LAS Jul 23, 01:14 UTCJul 23, 03:35 UTC2h 21m
2026-07-22 SWA3846 RNO → LAS Jul 22, 23:30 UTCJul 23, 00:10 UTC40m
2026-07-22 SWA2437 DEN → IAH Jul 22, 21:50 UTCJul 22, 22:30 UTC40m
2026-07-22 SWA4448 TUS → DEN Jul 22, 19:50 UTCJul 22, 20:45 UTC55m
2026-07-22 SWA4448 TUS → DEN Jul 22, 19:50 UTCJul 22, 20:42 UTC52m
2026-07-22 SWA3698 SJC → SAN Jul 22, 17:25 UTCJul 22, 18:35 UTC1h 10m
2026-07-22 SWA3859 DEN → ORD Jul 22, 15:00 UTCJul 22, 15:45 UTC45m
2026-07-22 SWA3859 DEN → ORD Jul 22, 14:58 UTCJul 22, 15:50 UTC52m
2026-07-22 SWA704 BOS → BWI Jul 22, 03:20 UTCJul 22, 04:25 UTC1h 5m
2026-07-22 SWA704 BOS → BWI Jul 22, 03:15 UTCJul 22, 04:23 UTC1h 8m
2026-07-22 SWA4523 ATL → DCA Jul 22, 01:35 UTCJul 22, 02:25 UTC50m
2026-07-21 SWA4523 ATL → DCA Jul 21, 23:45 UTCJul 22, 00:40 UTC55m
2026-07-21 SWA3064 LAS → OAK Jul 21, 21:45 UTCJul 21, 22:50 UTC1h 5m
2026-07-21 SWA3328 BOS → BWI Jul 21, 19:45 UTCJul 21, 20:40 UTC55m
2026-07-21 SWA3328 BOS → BWI Jul 21, 19:40 UTCJul 21, 20:36 UTC56m
2026-07-21 SWA900 BWI → MHT Jul 21, 17:40 UTCJul 21, 18:30 UTC50m
2026-07-21 SWA246 SJC → HNL Jul 21, 15:54 UTCJul 21, 16:36 UTC42m
2026-07-21 SWA246 SJC → HNL Jul 21, 12:40 UTCJul 21, 14:55 UTC2h 15m
2026-07-21 SWA246 SJC → HNL Jul 21, 11:00 UTCJul 21, 11:40 UTC40m
2026-07-21 SWA4074 BWI → PWM Jul 21, 05:00 UTCJul 21, 06:25 UTC1h 25m

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 Jul 26, 21:45 UTC.
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 SWA4301, SWA2970, SWA540, SWA434, SWA4.