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sensors Mode-S transponder

ACEF18

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N932WN · BOEING 737-700 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
ACEF18
Octal
53167430
Decimal
11,333,400
Country
US
Tail
N932WN
Type
B737
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
766
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S ACEF18.

Country allocation

The ICAO 24-bit address ACEF18 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
SWA1315 Southwest Airlines 9 2026-04-30
SWA1133 - 7 2026-07-13
SWA3859 - 6 2026-07-13
SWA2098 Southwest Airlines 6 2026-07-22
SWA428 Southwest Airlines 5 2026-05-30
SWA3566 Southwest Airlines 5 2026-06-21
SWA3199 Southwest Airlines 5 2026-05-10
SWA2737 Southwest Airlines 5 2026-04-15
SWA2314 - 5 2026-07-13
SWA1795 Southwest Airlines 5 2026-06-16
SWA1080 Southwest Airlines 5 2026-06-03
SWA747 Southwest Airlines 4 2026-07-25
SWA4919 - 4 2026-07-17
SWA3968 Southwest Airlines 4 2026-05-14
SWA37 - 4 2026-04-16
SWA319 - 4 2026-06-29
SWA3127 Southwest Airlines 4 2026-06-20
SWA312 Southwest Airlines 4 2026-05-27
SWA2414 Southwest Airlines 4 2026-06-09
SWA2374 - 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA4678 AUS → MTJ Jul 26, 19:00 UTCJul 26, 20:55 UTC1h 55m
2026-07-26 SWA1279 BWI → BUF Jul 26, 15:35 UTCJul 26, 17:40 UTC2h 5m
2026-07-26 SWA1279 BWI → BUF Jul 26, 15:33 UTCJul 26, 17:41 UTC2h 8m
2026-07-26 SWA3460 LGB → OAK Jul 26, 12:50 UTCJul 26, 14:10 UTC1h 20m
2026-07-26 SWA3720 LAS → SJC Jul 26, 00:10 UTCJul 26, 01:20 UTC1h 10m
2026-07-25 SWA3720 LAS → SJC Jul 25, 21:00 UTCJul 25, 23:25 UTC2h 25m
2026-07-25 SWA174 IND → MCO Jul 25, 17:50 UTCJul 25, 20:00 UTC2h 10m
2026-07-25 SWA174 IND → MCO Jul 25, 17:49 UTCJul 25, 19:58 UTC2h 9m
2026-07-25 SWA174 IND → MCO Jul 25, 15:35 UTCJul 25, 16:45 UTC1h 10m
2026-07-25 SWA174 IND → MCO Jul 25, 12:50 UTCJul 25, 14:30 UTC1h 40m
2026-07-25 SWA3178 GEG → SJC Jul 25, 10:55 UTCJul 25, 11:20 UTC25m
2026-07-25 SWA3406 SMF → BUR Jul 25, 03:10 UTCJul 25, 04:05 UTC55m
2026-07-25 SWA747 HNL → ITO Jul 25, 01:15 UTCJul 25, 02:30 UTC1h 15m
2026-07-25 SWA747 HNL → ITO Jul 25, 01:14 UTCJul 25, 02:23 UTC1h 9m
2026-07-24 SWA747 HNL → ITO Jul 24, 20:50 UTCJul 25, 00:25 UTC3h 35m
2026-07-24 SWA1097 BUR → SFO Jul 24, 17:55 UTCJul 24, 18:50 UTC55m
2026-07-24 SWA3555 SAV → BNA Jul 24, 15:55 UTCJul 24, 16:55 UTC1h 0m
2026-07-24 SWA4469 MSP → PHX Jul 24, 11:55 UTCJul 24, 14:15 UTC2h 20m
2026-07-24 SWA4210 MSY → DEN Jul 24, 02:39 UTCJul 24, 05:49 UTC3h 10m
2026-07-24 SWA4210 MSY → DEN Jul 24, 02:40 UTCJul 24, 05:55 UTC3h 15m
2026-07-23 SWA399 SAN → OAK Jul 23, 22:30 UTCJul 24, 01:35 UTC3h 5m
2026-07-23 SWA399 SAN → OAK Jul 23, 22:30 UTCJul 24, 01:30 UTC3h 0m
2026-07-23 SWA399 SAN → OAK Jul 23, 19:00 UTCJul 23, 21:15 UTC2h 15m
2026-07-23 SWA568 BWI → BOS Jul 23, 15:45 UTCJul 23, 17:10 UTC1h 25m
2026-07-23 SWA2516 LAX → BWI Jul 23, 13:35 UTCJul 23, 14:25 UTC50m
2026-07-23 SWA2516 LAX → BWI Jul 23, 13:29 UTCJul 23, 14:20 UTC51m
2026-07-23 SWA52 DAL → OAK Jul 23, 02:30 UTCJul 23, 03:05 UTC35m
2026-07-23 SWA52 DAL → OAK Jul 23, 02:25 UTCJul 23, 03:09 UTC44m
2026-07-23 SWA52 DAL → OAK Jul 23, 00:55 UTCJul 23, 01:35 UTC40m
2026-07-22 SWA2098 PHX → DAL Jul 22, 18:30 UTCJul 22, 19:15 UTC45m
2026-07-22 SWA2098 PHX → DAL Jul 22, 18:23 UTCJul 22, 19:17 UTC54m
2026-07-22 SWA102 DEN → ORD Jul 22, 16:45 UTCJul 22, 17:20 UTC35m
2026-07-22 SWA532 - Jul 22, 13:40 UTCJul 22, 15:20 UTC1h 40m
2026-07-22 SWA532 BNA → HOU Jul 22, 13:39 UTCJul 22, 15:18 UTC1h 39m
2026-07-22 SWA2439 - Jul 22, 04:45 UTCJul 22, 05:25 UTC40m
2026-07-22 SWA2439 LAX → LAS Jul 22, 04:40 UTCJul 22, 05:22 UTC42m
2026-07-21 SWA3681 ATL → CMH Jul 21, 04:00 UTCJul 21, 05:00 UTC1h 0m
2026-07-21 SWA3164 BWI → SAT Jul 21, 02:05 UTCJul 21, 02:50 UTC45m
2026-07-21 SWA3691 BOS → MDW Jul 21, 00:15 UTCJul 21, 01:10 UTC55m
2026-07-20 SWA3539 MDW → PIT Jul 20, 21:50 UTCJul 20, 22:45 UTC55m
2026-07-20 SWA3539 MDW → PIT Jul 20, 21:48 UTCJul 20, 22:44 UTC56m
2026-07-20 SWA4846 CMH → DEN Jul 20, 19:55 UTCJul 20, 20:45 UTC50m
2026-07-20 SWA4134 SAN → PHX Jul 20, 17:59 UTCJul 20, 18:53 UTC54m
2026-07-20 SWA4134 - Jul 20, 18:00 UTCJul 20, 19:00 UTC1h 0m
2026-07-20 SWA712 - Jul 20, 13:45 UTCJul 20, 15:35 UTC1h 50m
2026-07-20 SWA133 - Jul 20, 05:00 UTCJul 20, 06:40 UTC1h 40m
2026-07-19 SWA133 TPA → SAN Jul 19, 23:40 UTCJul 20, 03:50 UTC4h 10m
2026-07-19 SWA133 - Jul 19, 20:00 UTCJul 19, 22:30 UTC2h 30m
2026-07-19 SWA133 - Jul 19, 18:15 UTCJul 19, 18:55 UTC40m
2026-07-19 SWA2438 - Jul 19, 15:35 UTCJul 19, 17:00 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 N932WN page for operator, model, and routing details .

Mode-S ACEF18 frequently asked

What is Mode-S code ACEF18?
ACEF18 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N932WN.
Where is Mode-S ACEF18 registered?
Mode-S code ACEF18 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 ACEF18 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACEF18, octal 53167430, decimal 11,333,400.
What flights does ACEF18 operate?
Mode-S ACEF18 has broadcast 20 distinct callsigns, including SWA1315, SWA1133, SWA3859, SWA2098, SWA428.