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sensors Mode-S transponder

AAAD6D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7874B · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AAAD6D
Octal
52526555
Decimal
11,185,517
Country
US
Tail
N7874B
Type
B737
No current signal · last broadcast Jul 26, 20:05 UTC
Flights observed
761
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:05 UTC

Last known position

Most recent position reported by Mode-S AAAD6D.

Country allocation

The ICAO 24-bit address AAAD6D 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
SWA1396 - 8 2026-06-24
SWA2575 - 6 2026-07-10
SWA184 Southwest Airlines 6 2026-04-20
SWA1149 Southwest Airlines 6 2026-04-30
SWA576 Southwest Airlines 5 2026-04-20
SWA3916 Southwest Airlines 5 2026-05-27
SWA3706 Southwest Airlines 5 2026-04-27
SWA2705 Southwest Airlines 5 2026-05-22
SWA2024 - 5 2026-06-21
SWA1283 - 5 2026-06-22
SWA882 - 4 2026-06-24
SWA866 Southwest Airlines 4 2026-07-21
SWA549 Southwest Airlines 4 2026-05-21
SWA4301 - 4 2026-07-08
SWA366 Southwest Airlines 4 2026-06-07
SWA3214 Southwest Airlines 4 2026-04-13
SWA312 Southwest Airlines 4 2026-04-17
SWA3102 Southwest Airlines 4 2026-05-20
SWA294 - 4 2026-07-02
SWA2374 - 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA940 DAL → MAF Jul 26, 19:00 UTCJul 26, 20:05 UTC1h 5m
2026-07-26 SWA3630 DEN → PHL Jul 26, 16:40 UTCJul 26, 18:05 UTC1h 25m
2026-07-26 SWA4920 BUR → OAK Jul 26, 13:45 UTCJul 26, 15:05 UTC1h 20m
2026-07-26 SWA2002 PDX → SJC Jul 26, 01:05 UTCJul 26, 02:00 UTC55m
2026-07-25 SWA2002 PDX → SJC Jul 25, 23:10 UTCJul 25, 23:55 UTC45m
2026-07-25 SWA1562 LAX → PHX Jul 25, 20:40 UTCJul 25, 22:05 UTC1h 25m
2026-07-25 SWA1562 LAX → PHX Jul 25, 18:10 UTCJul 25, 19:25 UTC1h 15m
2026-07-25 SWA344 BDL → BWI Jul 25, 14:50 UTCJul 25, 17:00 UTC2h 10m
2026-07-25 SWA1397 HOU → LGA Jul 25, 12:20 UTCJul 25, 13:15 UTC55m
2026-07-25 SWA1397 HOU → LGA Jul 25, 12:18 UTCJul 25, 13:11 UTC54m
2026-07-25 SWA3564 CLT → DEN Jul 25, 06:00 UTCJul 25, 06:25 UTC25m
2026-07-25 SWA3564 CLT → DEN Jul 25, 05:57 UTCJul 25, 06:20 UTC23m
2026-07-25 SWA839 LAX → OAK Jul 25, 03:30 UTCJul 25, 04:35 UTC1h 5m
2026-07-25 SWA4667 MCO → SYR Jul 25, 01:35 UTCJul 25, 02:35 UTC1h 0m
2026-07-24 SWA2021 SJD → PHX Jul 24, 22:20 UTCJul 24, 23:15 UTC55m
2026-07-24 SWA2020 PHX → SJD Jul 24, 18:50 UTCJul 24, 19:40 UTC50m
2026-07-24 SWA2020 PHX → SJD Jul 24, 18:46 UTCJul 24, 20:20 UTC1h 34m
2026-07-24 SWA165 SAN → AUS Jul 24, 14:42 UTCJul 24, 16:07 UTC1h 26m
2026-07-24 SWA165 SAN → AUS Jul 24, 14:45 UTCJul 24, 16:05 UTC1h 20m
2026-07-24 SWA282 LAX → OAK Jul 24, 10:55 UTCJul 24, 12:45 UTC1h 50m
2026-07-24 SWA282 LAX → OAK Jul 24, 10:54 UTCJul 24, 12:41 UTC1h 48m
2026-07-24 SWA8511 SJC → PHX Jul 24, 04:55 UTCJul 24, 06:20 UTC1h 25m
2026-07-21 SWA856 PIT → DAL Jul 21, 19:15 UTCJul 21, 20:20 UTC1h 5m
2026-07-21 SWA1445 LAS → SJC Jul 21, 16:25 UTCJul 21, 18:00 UTC1h 35m
2026-07-21 SWA1445 LAS → SJC Jul 21, 16:21 UTCJul 21, 17:57 UTC1h 37m
2026-07-21 SWA866 PWM → BWI Jul 21, 13:30 UTCJul 21, 14:50 UTC1h 20m
2026-07-21 SWA866 PWM → BWI Jul 21, 13:29 UTCJul 21, 14:47 UTC1h 18m
2026-07-20 SWA3232 LAX → SFO Jul 20, 21:25 UTCJul 21, 00:55 UTC3h 29m
2026-07-20 SWA816 BUR → PHX Jul 20, 19:15 UTCJul 20, 20:25 UTC1h 10m
2026-07-20 SWA2198 IND → DEN Jul 20, 17:00 UTCJul 20, 17:45 UTC45m
2026-07-20 SWA4296 LAS → SJC Jul 20, 14:50 UTCJul 20, 15:35 UTC45m
2026-07-20 SWA3204 MSY → LGA Jul 20, 04:05 UTCJul 20, 05:15 UTC1h 10m
2026-07-20 SWA4032 FLL → DEN Jul 20, 02:10 UTCJul 20, 03:10 UTC1h 0m
2026-07-19 SWA1162 SAT → HOU Jul 19, 23:35 UTCJul 20, 00:40 UTC1h 5m
2026-07-19 SWA3539 MDW → PIT Jul 19, 21:50 UTCJul 19, 22:45 UTC55m
2026-07-19 SWA1532 BNA → MIA Jul 19, 19:30 UTCJul 19, 20:40 UTC1h 10m
2026-07-19 SWA1532 BNA → MIA Jul 19, 19:28 UTCJul 19, 20:40 UTC1h 12m
2026-07-19 SWA1532 BNA → MIA Jul 19, 17:25 UTCJul 19, 18:20 UTC55m
2026-07-19 SWA1532 BNA → MIA Jul 19, 14:10 UTCJul 19, 16:30 UTC2h 20m
2026-07-19 SWA3127 ATL → BWI Jul 19, 11:25 UTCJul 19, 12:40 UTC1h 15m
2026-07-19 SWA140 - Jul 19, 02:10 UTCJul 19, 03:00 UTC50m
2026-07-18 SWA3188 MHT → BWI Jul 18, 22:55 UTCJul 19, 01:10 UTC2h 15m
2026-07-18 SWA1314 DEN → SAN Jul 18, 19:10 UTCJul 18, 21:40 UTC2h 30m
2026-07-18 SWA1314 DEN → SAN Jul 18, 14:50 UTCJul 18, 18:10 UTC3h 20m
2026-07-18 SWA3248 - Jul 18, 05:45 UTCJul 18, 06:50 UTC1h 5m
2026-07-18 SWA4758 ATL → PHX Jul 18, 01:39 UTCJul 18, 05:00 UTC3h 21m
2026-07-17 SWA893 BNA → ATL Jul 17, 23:10 UTCJul 17, 23:50 UTC40m
2026-07-17 SWA893 BNA → ATL Jul 17, 23:08 UTCJul 17, 23:49 UTC42m
2026-07-17 SWA705 - Jul 17, 16:15 UTCJul 17, 17:35 UTC1h 20m
2026-07-17 SWA705 RIC → BNA Jul 17, 16:14 UTCJul 17, 17:30 UTC1h 16m

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 N7874B page for operator, model, and routing details .

Mode-S AAAD6D frequently asked

What is Mode-S code AAAD6D?
AAAD6D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7874B.
Where is Mode-S AAAD6D registered?
Mode-S code AAAD6D 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 AAAD6D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAAD6D, octal 52526555, decimal 11,185,517.
What flights does AAAD6D operate?
Mode-S AAAD6D has broadcast 20 distinct callsigns, including SWA1396, SWA2575, SWA184, SWA1149, SWA576.