Apparatus

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sensors Mode-S transponder

AAAD8F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7875A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AAAD8F
Octal
52526617
Decimal
11,185,551
Country
US
Tail
N7875A
Type
B737
Transponder active on ground
Flights observed
234
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AAAD8F.

Country allocation

The ICAO 24-bit address AAAD8F 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
SWA263 Southwest Airlines 6 2026-04-20
SWA4272 - 4 2026-04-13
SWA1723 Southwest Airlines 4 2026-04-21
SWA1150 Southwest Airlines 4 2026-04-25
SWA1094 Southwest Airlines 4 2026-06-07
SWA915 Southwest Airlines 3 2026-04-24
SWA9001 Southwest Airlines 3 2026-04-20
SWA835 Southwest Airlines 3 2026-04-29
SWA8 Southwest Airlines 3 2026-05-28
SWA649 Southwest Airlines 3 2026-04-18
SWA579 Southwest Airlines 3 2026-06-12
SWA569 - 3 2026-04-13
SWA4608 Southwest Airlines 3 2026-04-26
SWA4389 Southwest Airlines 3 2026-06-06
SWA3947 Southwest Airlines 3 2026-05-31
SWA351 Southwest Airlines 3 2026-04-15
SWA3287 Southwest Airlines 3 2026-04-28
SWA3232 Southwest Airlines 3 2026-06-09
SWA3161 Southwest Airlines 3 2026-04-27
SWA281 Southwest Airlines 3 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-13 SWA1001 MCO → BWI Jun 13, 00:10 UTCJun 13, 01:45 UTC1h 35m
2026-06-12 SWA851 STL → LGA Jun 12, 22:25 UTCJun 12, 23:20 UTC55m
2026-06-12 SWA579 AUS → CMH Jun 12, 19:00 UTCJun 12, 21:05 UTC2h 5m
2026-06-12 SWA579 AUS → CMH Jun 12, 15:25 UTCJun 12, 17:40 UTC2h 15m
2026-06-12 SWA579 AUS → CMH Jun 12, 13:30 UTCJun 12, 14:15 UTC45m
2026-06-12 SWA430 PHX → MCI Jun 12, 10:40 UTCJun 12, 11:20 UTC40m
2026-06-12 SWA990 MDW → DCA Jun 12, 03:00 UTCJun 12, 06:05 UTC3h 5m
2026-06-11 SWA1564 PHL → MDW Jun 11, 23:45 UTCJun 12, 01:15 UTC1h 31m
2026-06-11 SWA4213 SAN → SJC Jun 11, 20:35 UTCJun 11, 22:25 UTC1h 50m
2026-06-11 SWA3991 BWI → TPA Jun 11, 18:15 UTCJun 11, 19:15 UTC1h 0m
2026-06-11 SWA3991 BWI → TPA Jun 11, 18:13 UTCJun 11, 19:09 UTC56m
2026-06-11 SWA4773 MDW → STL Jun 11, 15:54 UTCJun 11, 17:07 UTC1h 13m
2026-06-11 SWA4773 MDW → STL Jun 11, 15:55 UTCJun 11, 17:10 UTC1h 15m
2026-06-11 SWA3073 AMA → DAL Jun 11, 13:30 UTCJun 11, 14:40 UTC1h 10m
2026-06-11 SWA2890 MDW → IAD Jun 11, 04:45 UTCJun 11, 06:20 UTC1h 35m
2026-06-11 SWA4717 LAS → BOI Jun 11, 00:55 UTCJun 11, 03:10 UTC2h 15m
2026-06-10 SWA3644 BNA → DCA Jun 10, 22:45 UTCJun 10, 23:50 UTC1h 5m
2026-06-10 SWA3412 LAX → OAK Jun 10, 20:25 UTCJun 10, 21:32 UTC1h 7m
2026-06-10 SWA3412 LAX → OAK Jun 10, 20:25 UTCJun 10, 21:35 UTC1h 10m
2026-06-10 SWA2056 SAN → SFO Jun 10, 17:02 UTCJun 10, 18:10 UTC1h 8m
2026-06-10 SWA2056 SAN → SFO Jun 10, 17:05 UTCJun 10, 18:10 UTC1h 5m
2026-06-10 SWA543 SAN → SJC Jun 10, 14:15 UTCJun 10, 15:45 UTC1h 30m
2026-06-10 SWA543 SAN → SJC Jun 10, 14:15 UTCJun 10, 15:48 UTC1h 33m
2026-06-10 SWA1716 MCO → BNA Jun 10, 00:50 UTCJun 10, 03:25 UTC2h 35m
2026-06-09 SWA1382 LGA → MDW Jun 9, 21:55 UTCJun 9, 23:10 UTC1h 15m
2026-06-09 SWA1382 LGA → MDW Jun 9, 20:05 UTCJun 9, 20:50 UTC45m
2026-06-09 SWA3232 LAX → SFO Jun 9, 17:42 UTCJun 9, 19:14 UTC1h 32m
2026-06-09 SWA3232 LAX → SFO Jun 9, 17:45 UTCJun 9, 19:15 UTC1h 30m
2026-06-09 SWA3232 LAX → SFO Jun 9, 14:50 UTCJun 9, 15:50 UTC1h 0m
2026-06-09 SWA4144 MDW → BNA Jun 9, 03:50 UTCJun 9, 07:45 UTC3h 55m
2026-06-09 SWA2693 LGB → SJC Jun 9, 00:30 UTCJun 9, 02:00 UTC1h 30m
2026-06-08 SWA2693 LGB → SJC Jun 8, 21:10 UTCJun 8, 23:25 UTC2h 15m
2026-06-08 SWA913 LAS → SJC Jun 8, 18:35 UTCJun 8, 19:30 UTC55m
2026-06-08 SWA912 MDW → BOS Jun 8, 15:25 UTCJun 8, 16:15 UTC50m
2026-06-08 SWA912 MDW → BOS Jun 8, 15:24 UTCJun 8, 16:46 UTC1h 22m
2026-06-08 SWA617 BOI → PHX Jun 8, 12:55 UTCJun 8, 13:45 UTC50m
2026-06-08 SWA617 BOI → PHX Jun 8, 12:44 UTCJun 8, 13:35 UTC51m
2026-06-07 SWA616 LAS → SFO Jun 7, 21:10 UTCJun 7, 21:45 UTC35m
2026-06-07 SWA281 SNA → OAK Jun 7, 17:20 UTCJun 7, 19:40 UTC2h 20m
2026-06-07 SWA281 SNA → OAK Jun 7, 17:16 UTCJun 7, 19:33 UTC2h 18m
2026-06-07 SWA281 SNA → OAK Jun 7, 13:45 UTCJun 7, 16:05 UTC2h 20m
2026-06-07 SWA1094 PHX → BOI Jun 7, 05:40 UTCJun 7, 06:45 UTC1h 5m
2026-06-07 SWA1094 PHX → BOI Jun 7, 05:39 UTCJun 7, 06:44 UTC1h 5m
2026-06-07 SWA1094 PHX → BOI Jun 7, 00:49 UTCJun 7, 04:30 UTC3h 40m
2026-06-06 SWA1094 PHX → BOI Jun 6, 19:54 UTCJun 6, 22:39 UTC2h 45m
2026-06-06 SWA3248 STL → BOS Jun 6, 16:39 UTCJun 6, 18:55 UTC2h 15m
2026-06-06 SWA15 SJC → LAX Jun 6, 15:30 UTCJun 6, 16:21 UTC51m
2026-06-06 SWA15 SJC → LAX Jun 6, 12:04 UTCJun 6, 14:50 UTC2h 45m
2026-06-06 SWA1638 LGA → BNA Jun 6, 09:14 UTCJun 6, 10:24 UTC1h 10m
2026-06-06 SWA1638 LGA → BNA Jun 6, 09:15 UTCJun 6, 10:30 UTC1h 15m

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 N7875A page for operator, model, and routing details .

Mode-S AAAD8F frequently asked

What is Mode-S code AAAD8F?
AAAD8F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7875A.
Where is Mode-S AAAD8F registered?
Mode-S code AAAD8F 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 AAAD8F broadcasting right now?
Mode-S AAAD8F is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAAD8F, octal 52526617, decimal 11,185,551.
What flights does AAAD8F operate?
Mode-S AAAD8F has broadcast 20 distinct callsigns, including SWA263, SWA4272, SWA1723, SWA1150, SWA1094.