Apparatus

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sensors Mode-S transponder

AC75DC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9014W · operated by SOUTHWEST AIRLINES CO.

Hex
AC75DC
Octal
53072734
Decimal
11,302,364
Country
US
Tail
N9014W
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
192
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S AC75DC.

Country allocation

The ICAO 24-bit address AC75DC 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
SWA1782 - 4 2026-07-04
SWA4301 Southwest Airlines 3 2026-07-18
SWA3693 - 3 2026-07-05
SWA3075 Southwest Airlines 3 2026-07-26
BOE123 - 3 2026-06-06
SWA988 Southwest Airlines 2 2026-07-24
SWA987 - 2 2026-07-03
SWA943 - 2 2026-07-08
SWA8500 - 2 2026-06-25
SWA713 - 2 2026-07-10
SWA552 - 2 2026-07-21
SWA4841 - 2 2026-07-08
SWA4835 Southwest Airlines 2 2026-07-23
SWA4680 - 2 2026-07-16
SWA4634 - 2 2026-07-08
SWA4537 Southwest Airlines 2 2026-07-02
SWA4521 - 2 2026-07-08
SWA4194 - 2 2026-07-09
SWA4111 - 2 2026-07-17
SWA4084 Southwest Airlines 2 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3075 SAN → SJC Jul 26, 21:45 UTCJul 26, 23:00 UTC1h 15m
2026-07-26 SWA3075 SAN → SJC Jul 26, 19:15 UTCJul 26, 20:30 UTC1h 15m
2026-07-26 SWA3075 SAN → SJC Jul 26, 16:45 UTCJul 26, 17:40 UTC55m
2026-07-26 SWA3715 RSW → MKE Jul 26, 14:50 UTCJul 26, 15:35 UTC45m
2026-07-26 SWA1651 MCI → LGA Jul 26, 12:10 UTCJul 26, 13:35 UTC1h 25m
2026-07-26 SWA2646 LAS → TUS Jul 26, 03:15 UTCJul 26, 04:35 UTC1h 20m
2026-07-26 SWA2646 LAS → TUS Jul 26, 03:13 UTCJul 26, 04:33 UTC1h 20m
2026-07-26 SWA711 BNA → LGA Jul 26, 00:25 UTCJul 26, 02:10 UTC1h 45m
2026-07-25 SWA1491 LAS → OKC Jul 25, 21:50 UTCJul 25, 23:15 UTC1h 25m
2026-07-25 SWA4208 DEN → PHX Jul 25, 16:40 UTCJul 25, 20:35 UTC3h 55m
2026-07-25 SWA356 PVD → BWI Jul 25, 13:40 UTCJul 25, 15:30 UTC1h 50m
2026-07-25 SWA356 PVD → BWI Jul 25, 10:25 UTCJul 25, 12:35 UTC2h 10m
2026-07-25 SWA2600 ONT → OAK Jul 25, 03:45 UTCJul 25, 05:50 UTC2h 5m
2026-07-25 SWA2600 ONT → OAK Jul 25, 03:42 UTCJul 25, 05:47 UTC2h 5m
2026-07-24 SWA4613 IND → DEN Jul 24, 23:45 UTCJul 25, 02:20 UTC2h 35m
2026-07-24 SWA1656 MDW → BNA Jul 24, 19:50 UTCJul 24, 20:25 UTC35m
2026-07-24 SWA1656 MDW → BNA Jul 24, 19:46 UTCJul 24, 22:10 UTC2h 24m
2026-07-24 SWA988 STL → ATL Jul 24, 16:10 UTCJul 24, 18:00 UTC1h 50m
2026-07-24 SWA988 STL → ATL Jul 24, 16:07 UTCJul 24, 17:58 UTC1h 52m
2026-07-24 SWA1651 MCI → LGA Jul 24, 12:10 UTCJul 24, 14:25 UTC2h 15m
2026-07-24 SWA3072 BNA → BOS Jul 24, 01:10 UTCJul 24, 03:15 UTC2h 5m
2026-07-23 SWA1526 SJC → BUR Jul 23, 22:25 UTCJul 23, 23:25 UTC1h 0m
2026-07-23 SWA1526 SJC → BUR Jul 23, 18:55 UTCJul 23, 21:10 UTC2h 15m
2026-07-23 SWA3261 DAL → ORD Jul 23, 16:16 UTCJul 23, 17:35 UTC1h 19m
2026-07-23 SWA3261 DAL → ORD Jul 23, 16:20 UTCJul 23, 17:40 UTC1h 20m
2026-07-23 SWA4835 MDW → OKC Jul 23, 12:35 UTCJul 23, 14:55 UTC2h 20m
2026-07-23 SWA4835 MDW → OKC Jul 23, 12:34 UTCJul 23, 14:51 UTC2h 18m
2026-07-23 SWA3283 AUS → SAN Jul 23, 04:30 UTCJul 23, 06:55 UTC2h 25m
2026-07-23 SWA3283 AUS → SAN Jul 23, 02:45 UTCJul 23, 03:30 UTC45m
2026-07-23 SWA3525 MDW → ORF Jul 23, 00:40 UTCJul 23, 01:35 UTC55m
2026-07-22 SWA3525 MDW → ORF Jul 22, 22:05 UTCJul 22, 23:10 UTC1h 5m
2026-07-22 SWA186 BWI → SJC Jul 22, 14:55 UTCJul 22, 20:00 UTC5h 5m
2026-07-22 SWA186 - Jul 22, 11:40 UTCJul 22, 13:00 UTC1h 20m
2026-07-22 SWA2400 SJC → KOA Jul 22, 00:55 UTCJul 22, 02:00 UTC1h 5m
2026-07-21 SWA2400 SJC → KOA Jul 21, 20:45 UTCJul 22, 00:00 UTC3h 15m
2026-07-21 SWA552 - Jul 21, 18:15 UTCJul 21, 19:00 UTC45m
2026-07-21 SWA552 SLC → LAX Jul 21, 18:10 UTCJul 21, 19:35 UTC1h 25m
2026-07-21 SWA1066 STL → TPA Jul 21, 13:05 UTCJul 21, 17:15 UTC4h 10m
2026-07-21 SWA621 SJC → BWI Jul 21, 04:55 UTCJul 21, 09:35 UTC4h 40m
2026-07-21 SWA1727 OKC → DCA Jul 21, 01:20 UTCJul 21, 03:25 UTC2h 5m
2026-07-21 SWA1727 OKC → DCA Jul 21, 01:15 UTCJul 21, 03:22 UTC2h 7m
2026-07-20 SWA3265 BNA → CHS Jul 20, 22:40 UTCJul 21, 00:05 UTC1h 25m
2026-07-20 SWA3265 BNA → CHS Jul 20, 22:36 UTCJul 20, 23:57 UTC1h 22m
2026-07-20 SWA3383 AUS → SJC Jul 20, 17:45 UTCJul 20, 21:25 UTC3h 40m
2026-07-20 SWA3971 - Jul 20, 15:20 UTCJul 20, 16:35 UTC1h 15m
2026-07-20 SWA4084 SMF → DAL Jul 20, 12:30 UTCJul 20, 14:10 UTC1h 40m
2026-07-20 SWA4084 SMF → DAL Jul 20, 12:27 UTCJul 20, 14:08 UTC1h 41m
2026-07-20 SWA1315 SLC → SJC Jul 20, 10:30 UTCJul 20, 11:05 UTC35m
2026-07-20 SWA3229 - Jul 20, 04:00 UTCJul 20, 06:05 UTC2h 5m
2026-07-20 SWA3049 DEN → ORD Jul 20, 01:10 UTCJul 20, 02:45 UTC1h 35m

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 N9014W page for operator, model, and routing details .

Mode-S AC75DC frequently asked

What is Mode-S code AC75DC?
AC75DC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9014W.
Where is Mode-S AC75DC registered?
Mode-S code AC75DC 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 AC75DC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC75DC, octal 53072734, decimal 11,302,364.
What flights does AC75DC operate?
Mode-S AC75DC has broadcast 20 distinct callsigns, including SWA1782, SWA4301, SWA3693, SWA3075, BOE123.