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sensors Mode-S transponder

A1CE16

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N215WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A1CE16
Octal
50347026
Decimal
10,604,054
Country
US
Tail
N215WN
Type
B737
Broadcasting now · callsign SWA2180 · 38,000 ft
Flights observed
676
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A1CE16 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A1CE16 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
SWA1753 Southwest Airlines 7 2026-04-18
SWA422 - 5 2026-06-19
SWA351 Southwest Airlines 5 2026-06-08
SWA285 Southwest Airlines 5 2026-06-08
SWA169 Southwest Airlines 5 2026-05-21
SWA1577 Southwest Airlines 5 2026-06-06
SWA534 Southwest Airlines 4 2026-06-03
SWA4347 Southwest Airlines 4 2026-05-14
SWA4020 Southwest Airlines 4 2026-04-13
SWA3185 - 4 2026-07-12
SWA2937 - 4 2026-06-27
SWA2782 - 4 2026-06-17
SWA2531 - 4 2026-06-28
SWA250 Southwest Airlines 4 2026-06-02
SWA236 - 4 2026-07-10
SWA223 Southwest Airlines 4 2026-04-17
SWA2091 - 4 2026-07-14
SWA2068 - 4 2026-07-05
SWA1642 Southwest Airlines 4 2026-05-04
SWA985 Southwest Airlines 3 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA4054 - Jul 14, 22:30 UTCJul 14, 23:20 UTC49m
2026-07-14 SWA2091 - Jul 14, 20:25 UTCJul 14, 21:30 UTC1h 5m
2026-07-14 SWA2098 - Jul 14, 18:35 UTCJul 14, 19:20 UTC45m
2026-07-14 SWA102 - Jul 14, 16:30 UTCJul 14, 17:05 UTC35m
2026-07-14 SWA532 - Jul 14, 13:35 UTCJul 14, 15:25 UTC1h 50m
2026-07-14 SWA532 BNA → HOU Jul 14, 13:31 UTCJul 14, 15:26 UTC1h 55m
2026-07-14 SWA3592 SAV → BNA Jul 14, 10:46 UTCJul 14, 11:56 UTC1h 10m
2026-07-14 SWA3592 SAV → BNA Jul 14, 10:50 UTCJul 14, 12:10 UTC1h 20m
2026-07-14 SWA669 BNA → SAV Jul 14, 00:20 UTCJul 14, 01:40 UTC1h 20m
2026-07-13 SWA410 - Jul 13, 22:15 UTCJul 13, 22:55 UTC40m
2026-07-13 SWA410 MEM → BNA Jul 13, 22:14 UTCJul 13, 22:48 UTC34m
2026-07-13 SWA410 - Jul 13, 20:10 UTCJul 13, 21:25 UTC1h 15m
2026-07-13 SWA680 - Jul 13, 17:45 UTCJul 13, 18:50 UTC1h 5m
2026-07-13 SWA680 MDW → TUL Jul 13, 15:05 UTCJul 13, 16:25 UTC1h 20m
2026-07-13 SWA3118 - Jul 13, 11:45 UTCJul 13, 13:30 UTC1h 45m
2026-07-13 SWA3118 PVD → MDW Jul 13, 11:44 UTCJul 13, 13:40 UTC1h 56m
2026-07-13 SWA1020 - Jul 13, 02:15 UTCJul 13, 03:10 UTC55m
2026-07-13 SWA1020 BWI → PVD Jul 13, 02:10 UTCJul 13, 03:05 UTC55m
2026-07-13 SWA234 - Jul 13, 00:40 UTCJul 13, 01:25 UTC45m
2026-07-12 SWA1143 - Jul 12, 20:01 UTCJul 12, 20:50 UTC50m
2026-07-12 SWA1143 BWI → BDL Jul 12, 19:59 UTCJul 12, 20:46 UTC47m
2026-07-12 SWA3185 - Jul 12, 18:50 UTCJul 12, 19:01 UTC10m
2026-07-12 SWA3185 - Jul 12, 18:01 UTCJul 12, 19:01 UTC1h 0m
2026-07-12 SWA3185 ORF → BWI Jul 12, 17:56 UTCJul 12, 18:33 UTC38m
2026-07-12 SWA3185 - Jul 12, 15:30 UTCJul 12, 16:50 UTC1h 20m
2026-07-12 SWA1983 - Jul 12, 12:45 UTCJul 12, 14:10 UTC1h 25m
2026-07-12 SWA140 - Jul 12, 02:20 UTCJul 12, 03:10 UTC50m
2026-07-11 SWA3188 - Jul 11, 23:05 UTCJul 12, 01:25 UTC2h 20m
2026-07-11 SWA1314 - Jul 11, 19:10 UTCJul 11, 21:30 UTC2h 20m
2026-07-11 SWA1314 BUR → STL Jul 11, 14:40 UTCJul 11, 17:50 UTC3h 10m
2026-07-11 SWA3443 - Jul 11, 04:40 UTCJul 11, 05:45 UTC1h 5m
2026-07-11 SWA4875 - Jul 11, 02:50 UTCJul 11, 03:50 UTC1h 0m
2026-07-10 SWA236 - Jul 10, 19:40 UTCJul 11, 00:10 UTC4h 30m
2026-07-10 SWA236 PIT → SAN Jul 10, 19:37 UTCJul 11, 00:11 UTC4h 34m
2026-07-10 SWA236 - Jul 10, 17:15 UTCJul 10, 18:35 UTC1h 20m
2026-07-10 SWA236 - Jul 10, 15:10 UTCJul 10, 16:20 UTC1h 10m
2026-07-10 SWA3139 - Jul 10, 13:10 UTCJul 10, 14:00 UTC50m
2026-07-10 SWA1374 DAL → OMA Jul 10, 01:10 UTCJul 10, 02:35 UTC1h 25m
2026-07-10 SWA1374 DAL → OMA Jul 10, 01:10 UTCJul 10, 02:30 UTC1h 20m
2026-07-09 SWA1374 - Jul 9, 21:45 UTCJul 10, 00:15 UTC2h 30m
2026-07-09 SWA114 - Jul 9, 18:15 UTCJul 9, 20:30 UTC2h 15m
2026-07-09 SWA1429 DCA → CMH Jul 9, 15:55 UTCJul 9, 16:45 UTC50m
2026-07-09 SWA1429 DCA → CMH Jul 9, 15:51 UTCJul 9, 16:44 UTC53m
2026-07-09 SWA222 MSY → DCA Jul 9, 12:45 UTCJul 9, 14:55 UTC2h 10m
2026-07-09 SWA222 MSY → DCA Jul 9, 12:43 UTCJul 9, 14:56 UTC2h 13m
2026-07-09 SWA4942 AUS → MSY Jul 9, 10:25 UTCJul 9, 11:25 UTC1h 0m
2026-07-09 SWA4942 AUS → MSY Jul 9, 10:24 UTCJul 9, 11:25 UTC1h 1m
2026-07-09 SWA1558 PHX → AUS Jul 9, 03:09 UTCJul 9, 05:08 UTC1h 59m
2026-07-09 SWA1558 PHX → AUS Jul 9, 03:10 UTCJul 9, 05:05 UTC1h 55m
2026-07-08 SWA2494 LGB → PHX Jul 8, 01:45 UTCJul 8, 02:45 UTC1h 0m

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 N215WN page for operator, model, and routing details .

Mode-S A1CE16 frequently asked

What is Mode-S code A1CE16?
A1CE16 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N215WN.
Where is Mode-S A1CE16 registered?
Mode-S code A1CE16 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 A1CE16 broadcasting right now?
Yes. Mode-S A1CE16 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1CE16, octal 50347026, decimal 10,604,054.
What flights does A1CE16 operate?
Mode-S A1CE16 has broadcast 20 distinct callsigns, including SWA1753, SWA422, SWA351, SWA285, SWA169.