Apparatus

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sensors Mode-S transponder

AC7C52

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N903WN · BOEING 737-700 · operated by BANK OF UTAH TRUSTEE

Hex
AC7C52
Octal
53076122
Decimal
11,304,018
Country
US
Tail
N903WN
Type
B737
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
805
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AC7C52.

Country allocation

The ICAO 24-bit address AC7C52 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
SWA1094 - 9 2026-07-02
SWA2779 Southwest Airlines 6 2026-07-18
SWA250 Southwest Airlines 6 2026-04-17
SWA2233 - 6 2026-07-08
SWA894 Southwest Airlines 5 2026-06-11
SWA4088 Southwest Airlines 5 2026-05-25
SWA3335 Southwest Airlines 5 2026-05-17
SWA2806 Southwest Airlines 5 2026-05-19
SWA1757 Southwest Airlines 5 2026-04-15
SWA1091 Southwest Airlines 5 2026-05-22
SWA105 Southwest Airlines 5 2026-06-09
SWA598 - 4 2026-06-24
SWA4756 - 4 2026-07-17
SWA4646 - 4 2026-04-13
SWA4082 Southwest Airlines 4 2026-04-17
SWA3816 - 4 2026-06-22
SWA3743 - 4 2026-06-29
SWA3369 Southwest Airlines 4 2026-04-17
SWA32 Southwest Airlines 4 2026-06-03
SWA3129 - 4 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2051 LAX → OAK Jul 26, 20:20 UTCJul 26, 22:30 UTC2h 10m
2026-07-26 SWA3673 LAS → SJC Jul 26, 15:45 UTCJul 26, 19:10 UTC3h 25m
2026-07-26 SWA3673 LAS → SJC Jul 26, 15:42 UTCJul 26, 19:09 UTC3h 27m
2026-07-26 SWA398 LAS → SFO Jul 26, 11:35 UTCJul 26, 14:35 UTC3h 0m
2026-07-26 SWA2600 ONT → OAK Jul 26, 02:25 UTCJul 26, 04:30 UTC2h 5m
2026-07-26 SWA2600 ONT → OAK Jul 26, 02:21 UTCJul 26, 04:26 UTC2h 5m
2026-07-25 SWA1155 ELP → HOU Jul 25, 23:05 UTCJul 26, 00:50 UTC1h 45m
2026-07-25 SWA1155 ELP → HOU Jul 25, 23:01 UTCJul 26, 00:46 UTC1h 46m
2026-07-25 SWA1493 OAK → LAX Jul 25, 21:35 UTCJul 25, 22:15 UTC40m
2026-07-25 SWA1493 OAK → LAX Jul 25, 21:32 UTCJul 25, 22:08 UTC36m
2026-07-25 SWA9001 SAN → LAS Jul 25, 20:15 UTCJul 25, 20:30 UTC15m
2026-07-25 SWA9001 SAN → LAS Jul 25, 18:15 UTCJul 25, 20:30 UTC2h 15m
2026-07-25 SWA1310 SAN → LAS Jul 25, 17:57 UTCJul 25, 20:00 UTC2h 3m
2026-07-25 SWA1310 SAN → LAS Jul 25, 14:20 UTCJul 25, 17:30 UTC3h 10m
2026-07-25 SWA4984 MKE → MCI Jul 25, 04:55 UTCJul 25, 06:00 UTC1h 5m
2026-07-25 SWA3872 MHT → MCO Jul 25, 03:15 UTCJul 25, 04:20 UTC1h 5m
2026-07-25 SWA4510 PHX → OGG Jul 25, 01:40 UTCJul 25, 02:30 UTC50m
2026-07-25 SWA4510 PHX → OGG Jul 25, 01:37 UTCJul 25, 02:27 UTC50m
2026-07-24 SWA819 SJC → SEA Jul 24, 23:05 UTCJul 25, 00:10 UTC1h 5m
2026-07-24 SWA3767 LAS → LAX Jul 24, 21:05 UTCJul 24, 22:00 UTC55m
2026-07-24 SWA3001 ISP → BWI Jul 24, 19:10 UTCJul 24, 20:15 UTC1h 5m
2026-07-24 SWA3001 ISP → BWI Jul 24, 19:05 UTCJul 24, 20:09 UTC1h 4m
2026-07-24 SWA3001 ISP → BWI Jul 24, 17:10 UTCJul 24, 18:00 UTC50m
2026-07-24 SWA3001 ISP → BWI Jul 24, 13:35 UTCJul 24, 16:05 UTC2h 30m
2026-07-24 SWA4144 MDW → BNA Jul 24, 04:30 UTCJul 24, 08:30 UTC4h 0m
2026-07-24 SWA999 PHL → FLL Jul 24, 01:55 UTCJul 24, 03:30 UTC1h 35m
2026-07-23 SWA999 PHL → FLL Jul 23, 22:40 UTCJul 24, 00:50 UTC2h 10m
2026-07-23 SWA4562 MDW → RSW Jul 23, 19:15 UTCJul 23, 21:45 UTC2h 30m
2026-07-23 SWA4562 MDW → RSW Jul 23, 16:35 UTCJul 23, 17:50 UTC1h 15m
2026-07-23 SWA3461 SAN → HOU Jul 23, 13:45 UTCJul 23, 15:25 UTC1h 40m
2026-07-23 SWA3461 SAN → HOU Jul 23, 13:44 UTCJul 23, 15:21 UTC1h 37m
2026-07-23 SWA438 ATL → LAS Jul 23, 11:05 UTCJul 23, 13:00 UTC1h 55m
2026-07-22 SWA1509 SJC → DAL Jul 22, 23:20 UTCJul 23, 01:35 UTC2h 15m
2026-07-22 SWA4213 SAN → SJC Jul 22, 19:30 UTCJul 22, 21:30 UTC2h 0m
2026-07-22 SWA3635 ABQ → SAN Jul 22, 17:50 UTCJul 22, 18:45 UTC55m
2026-07-22 SWA827 DEN → PHL Jul 22, 15:55 UTCJul 22, 16:45 UTC50m
2026-07-22 SWA2196 MDW → MEM Jul 22, 14:00 UTCJul 22, 14:40 UTC40m
2026-07-22 SWA4422 SBA → LAS Jul 22, 12:15 UTCJul 22, 13:05 UTC50m
2026-07-22 SWA4422 SBA → LAS Jul 22, 12:12 UTCJul 22, 13:01 UTC50m
2026-07-22 SWA4280 ATL → BWI Jul 22, 05:05 UTCJul 22, 05:25 UTC20m
2026-07-22 SWA2477 ATL → JAN Jul 22, 02:50 UTCJul 22, 03:35 UTC45m
2026-07-22 SWA2477 ATL → JAN Jul 22, 02:49 UTCJul 22, 03:28 UTC39m
2026-07-22 SWA4906 MSY → DEN Jul 22, 01:05 UTCJul 22, 02:00 UTC55m
2026-07-21 SWA514 DEN → PVR Jul 21, 17:15 UTCJul 21, 23:10 UTC5h 55m
2026-07-21 SWA3493 SJC → BUR Jul 21, 13:40 UTCJul 21, 15:35 UTC1h 55m
2026-07-21 SWA3426 OAK → PSP Jul 21, 07:55 UTCJul 21, 08:40 UTC45m
2026-07-21 SWA3526 BDL → MCO Jul 21, 06:25 UTCJul 21, 07:15 UTC50m
2026-07-21 SWA3526 BDL → MCO Jul 21, 06:20 UTCJul 21, 07:10 UTC50m
2026-07-21 SWA3526 BDL → MCO Jul 21, 04:25 UTCJul 21, 05:25 UTC1h 0m
2026-07-21 SWA3845 - Jul 21, 02:15 UTCJul 21, 03:05 UTC50m

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 N903WN page for operator, model, and routing details .

Mode-S AC7C52 frequently asked

What is Mode-S code AC7C52?
AC7C52 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N903WN.
Where is Mode-S AC7C52 registered?
Mode-S code AC7C52 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 AC7C52 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC7C52, octal 53076122, decimal 11,304,018.
What flights does AC7C52 operate?
Mode-S AC7C52 has broadcast 20 distinct callsigns, including SWA1094, SWA2779, SWA250, SWA2233, SWA894.