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sensors Mode-S transponder

AD3E16

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N952WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AD3E16
Octal
53237026
Decimal
11,353,622
Country
US
Tail
N952WN
Type
B737
No current signal · last broadcast Jul 17, 17:55 UTC
Flights observed
697
Distinct callsigns
20
Country
US
Last broadcast
Jul 17, 17:55 UTC

Last known position

Most recent position reported by Mode-S AD3E16.

Country allocation

The ICAO 24-bit address AD3E16 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
SWA30 Southwest Airlines 9 2026-05-08
SWA3091 Southwest Airlines 6 2026-05-23
SWA2492 - 6 2026-06-21
SWA863 - 5 2026-04-13
SWA670 - 5 2026-07-12
SWA4523 - 5 2026-06-24
SWA3692 Southwest Airlines 5 2026-05-09
SWA3333 Southwest Airlines 5 2026-05-09
SWA250 Southwest Airlines 5 2026-04-25
SWA19 Southwest Airlines 5 2026-05-04
SWA757 - 4 2026-07-07
SWA4724 - 4 2026-06-30
SWA3245 Southwest Airlines 4 2026-04-14
SWA2986 - 4 2026-06-27
SWA2864 Southwest Airlines 4 2026-05-18
SWA2677 Southwest Airlines 4 2026-06-03
SWA2454 Southwest Airlines 4 2026-04-13
SWA2433 Southwest Airlines 4 2026-05-22
SWA2267 - 4 2026-06-13
SWA2120 Southwest Airlines 4 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SWA8534 STL → CLE Jul 17, 15:35 UTCJul 17, 17:55 UTC2h 20m
2026-07-17 SWA8534 STL → CLE Jul 17, 15:31 UTCJul 17, 18:04 UTC2h 33m
2026-07-17 SWA4729 - Jul 17, 10:50 UTCJul 17, 12:25 UTC1h 35m
2026-07-17 SWA4729 ATL → HOU Jul 17, 10:48 UTCJul 17, 12:26 UTC1h 38m
2026-07-17 SWA1949 OAK → LAS Jul 17, 05:35 UTCJul 17, 07:14 UTC1h 40m
2026-07-17 SWA1949 OAK → LAS Jul 17, 05:30 UTCJul 17, 07:02 UTC1h 32m
2026-07-17 SWA2645 PHL → MDW Jul 17, 02:45 UTCJul 17, 04:35 UTC1h 50m
2026-07-16 SWA2091 - Jul 16, 23:05 UTCJul 17, 01:20 UTC2h 15m
2026-07-16 SWA2091 - Jul 16, 21:19 UTCJul 16, 22:19 UTC1h 0m
2026-07-16 SWA1433 - Jul 16, 17:30 UTCJul 16, 20:00 UTC2h 30m
2026-07-16 SWA1908 - Jul 16, 14:29 UTCJul 16, 16:15 UTC1h 45m
2026-07-15 SWA1458 - Jul 15, 22:10 UTCJul 16, 00:35 UTC2h 25m
2026-07-15 SWA1458 - Jul 15, 20:10 UTCJul 15, 21:05 UTC55m
2026-07-15 SWA2771 OUN → DCA Jul 15, 15:55 UTCJul 15, 18:50 UTC2h 55m
2026-07-15 SWA2242 BNA → OKC Jul 15, 13:35 UTCJul 15, 15:15 UTC1h 40m
2026-07-15 SWA1167 - Jul 15, 11:05 UTCJul 15, 12:00 UTC55m
2026-07-14 SWA915 - Jul 14, 23:25 UTCJul 15, 00:20 UTC55m
2026-07-14 SWA1247 - Jul 14, 21:00 UTCJul 14, 22:15 UTC1h 15m
2026-07-14 SWA1247 DEN → CVG Jul 14, 17:45 UTCJul 14, 20:10 UTC2h 25m
2026-07-14 SWA1624 - Jul 14, 14:35 UTCJul 14, 16:25 UTC1h 50m
2026-07-14 SWA3837 - Jul 14, 04:05 UTCJul 14, 05:15 UTC1h 10m
2026-07-14 SWA3549 SAN → SMF Jul 14, 02:06 UTCJul 14, 03:11 UTC1h 5m
2026-07-14 SWA3549 - Jul 14, 02:05 UTCJul 14, 03:15 UTC1h 10m
2026-07-13 SWA236 - Jul 13, 20:35 UTCJul 14, 00:40 UTC4h 5m
2026-07-13 SWA236 ATL → PIT Jul 13, 17:25 UTCJul 13, 18:40 UTC1h 15m
2026-07-13 SWA236 STL → ATL Jul 13, 15:05 UTCJul 13, 16:25 UTC1h 20m
2026-07-13 SWA3139 - Jul 13, 13:00 UTCJul 13, 13:55 UTC55m
2026-07-13 SWA2040 - Jul 13, 01:20 UTCJul 13, 02:20 UTC1h 0m
2026-07-12 SWA670 POC → DEN Jul 12, 22:20 UTCJul 13, 00:10 UTC1h 50m
2026-07-12 SWA670 PHX → ONT Jul 12, 20:30 UTCJul 12, 21:15 UTC45m
2026-07-12 SWA670 - Jul 12, 17:35 UTCJul 12, 19:25 UTC1h 50m
2026-07-12 SWA2873 - Jul 12, 14:20 UTCJul 12, 16:40 UTC2h 20m
2026-07-12 SWA2873 LAS → SAT Jul 12, 14:20 UTCJul 12, 16:36 UTC2h 16m
2026-07-12 SWA2957 SMF → LAS Jul 12, 12:20 UTCJul 12, 13:25 UTC1h 5m
2026-07-12 SWA4921 - Jul 12, 03:55 UTCJul 12, 04:50 UTC55m
2026-07-11 SWA3110 - Jul 11, 04:05 UTCJul 11, 05:55 UTC1h 50m
2026-07-10 SWA921 - Jul 10, 23:20 UTCJul 11, 02:10 UTC2h 50m
2026-07-10 SWA921 - Jul 10, 21:20 UTCJul 10, 22:20 UTC1h 0m
2026-07-10 SWA921 - Jul 10, 19:25 UTCJul 10, 20:20 UTC55m
2026-07-10 SWA966 - Jul 10, 17:35 UTCJul 10, 18:15 UTC40m
2026-07-10 SWA966 BWI → ISP Jul 10, 17:31 UTCJul 10, 18:14 UTC43m
2026-07-10 SWA3594 SAV → BWI Jul 10, 15:10 UTCJul 10, 16:23 UTC1h 13m
2026-07-10 SWA3594 - Jul 10, 15:10 UTCJul 10, 16:35 UTC1h 25m
2026-07-10 SWA1093 - Jul 10, 12:50 UTCJul 10, 14:05 UTC1h 15m
2026-07-10 SWA3422 RDU → BWI Jul 10, 10:50 UTCJul 10, 11:30 UTC40m
2026-07-10 SWA3422 RDU → BWI Jul 10, 10:45 UTCJul 10, 11:27 UTC42m
2026-07-10 SWA2690 - Jul 10, 02:15 UTCJul 10, 03:35 UTC1h 20m
2026-07-09 SWA3949 STL → MCO Jul 9, 23:20 UTCJul 10, 01:25 UTC2h 5m
2026-07-09 SWA1417 - Jul 9, 19:25 UTCJul 9, 22:35 UTC3h 10m
2026-07-09 SWA827 BUR → SFO Jul 9, 17:00 UTCJul 9, 18:05 UTC1h 5m

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 N952WN page for operator, model, and routing details .

Mode-S AD3E16 frequently asked

What is Mode-S code AD3E16?
AD3E16 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N952WN.
Where is Mode-S AD3E16 registered?
Mode-S code AD3E16 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 AD3E16 broadcasting right now?
No active broadcast right now. Last signal was Jul 17, 17:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD3E16, octal 53237026, decimal 11,353,622.
What flights does AD3E16 operate?
Mode-S AD3E16 has broadcast 20 distinct callsigns, including SWA30, SWA3091, SWA2492, SWA863, SWA670.