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sensors Mode-S transponder

AD1697

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N942WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AD1697
Octal
53213227
Decimal
11,343,511
Country
US
Tail
N942WN
Type
B737
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
793
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S AD1697.

Country allocation

The ICAO 24-bit address AD1697 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
SWA3616 Southwest Airlines 10 2026-04-15
SWA120 - 10 2026-07-18
SWA1771 Southwest Airlines 9 2026-07-23
SWA2374 Southwest Airlines 7 2026-07-24
SWA203 Southwest Airlines 7 2026-05-06
SWA4607 Southwest Airlines 5 2026-06-01
SWA2705 Southwest Airlines 5 2026-05-08
SWA889 Southwest Airlines 4 2026-05-05
SWA60 - 4 2026-07-12
SWA4909 Southwest Airlines 4 2026-07-06
SWA487 Southwest Airlines 4 2026-05-21
SWA3869 - 4 2026-07-09
SWA3738 Southwest Airlines 4 2026-04-16
SWA3469 Southwest Airlines 4 2026-05-31
SWA3454 Southwest Airlines 4 2026-05-17
SWA3222 - 4 2026-07-14
SWA3168 Southwest Airlines 4 2026-06-12
SWA3062 - 4 2026-07-06
SWA30 Southwest Airlines 4 2026-04-18
SWA2731 Southwest Airlines 4 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2472 BDL → BWI Jul 26, 16:00 UTCJul 26, 21:15 UTC5h 15m
2026-07-26 SWA4904 BUF → MCO Jul 26, 14:10 UTCJul 26, 14:45 UTC35m
2026-07-26 SWA1035 SMF → STL Jul 26, 12:40 UTCJul 26, 13:10 UTC30m
2026-07-26 SWA1035 SMF → STL Jul 26, 12:40 UTCJul 26, 13:09 UTC29m
2026-07-26 SWA4657 LGA → HOU Jul 26, 09:45 UTCJul 26, 10:55 UTC1h 10m
2026-07-26 SWA1668 BWI → BOS Jul 26, 03:30 UTCJul 26, 04:25 UTC55m
2026-07-26 SWA1668 BWI → BOS Jul 26, 03:28 UTCJul 26, 04:21 UTC53m
2026-07-26 SWA2159 BWI → DAL Jul 26, 01:15 UTCJul 26, 02:45 UTC1h 30m
2026-07-26 SWA2159 BWI → DAL Jul 26, 01:12 UTCJul 26, 02:50 UTC1h 38m
2026-07-25 SWA4833 OAK → SNA Jul 25, 20:35 UTCJul 25, 22:10 UTC1h 35m
2026-07-25 SWA4833 OAK → SNA Jul 25, 20:30 UTCJul 25, 22:04 UTC1h 34m
2026-07-25 SWA5070 HOU → RSW Jul 25, 18:15 UTCJul 25, 19:10 UTC55m
2026-07-25 SWA5070 HOU → RSW Jul 25, 18:04 UTCJul 25, 19:10 UTC1h 6m
2026-07-25 SWA925 BOS → MDW Jul 25, 16:05 UTCJul 25, 17:00 UTC55m
2026-07-25 SWA925 BOS → MDW Jul 25, 13:40 UTCJul 25, 14:55 UTC1h 15m
2026-07-25 SWA3269 PHL → MDW Jul 25, 10:40 UTCJul 25, 11:45 UTC1h 5m
2026-07-25 SWA3269 PHL → MDW Jul 25, 10:34 UTCJul 25, 12:23 UTC1h 49m
2026-07-25 SWA603 BUR → SFO Jul 25, 00:05 UTCJul 25, 01:00 UTC55m
2026-07-24 SWA2374 OAK → PSP Jul 24, 22:00 UTCJul 24, 23:10 UTC1h 10m
2026-07-24 SWA2374 OAK → PSP Jul 24, 21:54 UTCJul 24, 23:02 UTC1h 8m
2026-07-24 SWA2374 OAK → PSP Jul 24, 18:45 UTCJul 24, 21:00 UTC2h 15m
2026-07-24 SWA2374 OAK → PSP Jul 24, 16:10 UTCJul 24, 17:25 UTC1h 15m
2026-07-24 SWA4919 BNA → MKE Jul 24, 14:05 UTCJul 24, 14:55 UTC50m
2026-07-24 SWA1839 MDW → CLT Jul 24, 04:00 UTCJul 24, 04:45 UTC45m
2026-07-24 SWA1839 MDW → CLT Jul 24, 01:40 UTCJul 24, 03:00 UTC1h 20m
2026-07-23 SWA1771 SEA → SJC Jul 23, 23:10 UTCJul 24, 00:55 UTC1h 45m
2026-07-23 SWA1771 SEA → SJC Jul 23, 21:20 UTCJul 23, 22:10 UTC50m
2026-07-23 SWA1771 SEA → SJC Jul 23, 17:30 UTCJul 23, 20:10 UTC2h 40m
2026-07-23 SWA1771 SEA → SJC Jul 23, 15:45 UTCJul 23, 16:35 UTC50m
2026-07-23 SWA4171 BOS → STL Jul 23, 13:30 UTCJul 23, 14:35 UTC1h 5m
2026-07-23 SWA4171 BOS → STL Jul 23, 13:29 UTCJul 23, 14:30 UTC1h 1m
2026-07-23 SWA349 LAS → PIT Jul 23, 01:10 UTCJul 23, 02:15 UTC1h 5m
2026-07-22 SWA1014 - Jul 22, 22:25 UTCJul 22, 23:25 UTC1h 0m
2026-07-22 SWA1014 MKE → STL Jul 22, 22:23 UTCJul 22, 23:15 UTC52m
2026-07-22 SWA1014 - Jul 22, 19:45 UTCJul 22, 21:30 UTC1h 45m
2026-07-22 SWA1100 OAK → LAS Jul 22, 17:20 UTCJul 22, 18:35 UTC1h 15m
2026-07-22 SWA1003 - Jul 22, 15:15 UTCJul 22, 15:45 UTC30m
2026-07-22 SWA1003 BWI → MHT Jul 22, 15:14 UTCJul 22, 16:12 UTC58m
2026-07-22 SWA1110 LAS → SNA Jul 22, 11:55 UTCJul 22, 13:15 UTC1h 20m
2026-07-21 SWA1290 BWI → BDL Jul 21, 19:55 UTCJul 21, 21:55 UTC2h 0m
2026-07-20 SWA2961 LAS → TUL Jul 20, 23:40 UTCJul 21, 01:25 UTC1h 45m
2026-07-20 SWA3123 OKC → MDW Jul 20, 21:00 UTCJul 20, 22:35 UTC1h 35m
2026-07-20 SWA3309 PHX → OKC Jul 20, 18:10 UTCJul 20, 20:00 UTC1h 50m
2026-07-20 SWA1683 DEN → PHX Jul 20, 05:20 UTCJul 20, 06:40 UTC1h 20m
2026-07-20 SWA4214 - Jul 20, 00:50 UTCJul 20, 04:00 UTC3h 10m
2026-07-20 SWA4214 BWI → DEN Jul 20, 00:46 UTCJul 20, 03:56 UTC3h 10m
2026-07-19 SWA2489 - Jul 19, 19:30 UTCJul 19, 20:30 UTC1h 0m
2026-07-19 SWA2489 GSP → BWI Jul 19, 19:25 UTCJul 19, 20:38 UTC1h 13m
2026-07-19 SWA952 - Jul 19, 17:25 UTCJul 19, 18:20 UTC55m
2026-07-19 SWA3894 STL → BWI Jul 19, 13:43 UTCJul 19, 15:21 UTC1h 38m

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 N942WN page for operator, model, and routing details .

Mode-S AD1697 frequently asked

What is Mode-S code AD1697?
AD1697 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N942WN.
Where is Mode-S AD1697 registered?
Mode-S code AD1697 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 AD1697 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD1697, octal 53213227, decimal 11,343,511.
What flights does AD1697 operate?
Mode-S AD1697 has broadcast 20 distinct callsigns, including SWA3616, SWA120, SWA1771, SWA2374, SWA203.