Apparatus

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sensors Mode-S transponder

AC5697

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8940Q · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC5697
Octal
53053227
Decimal
11,294,359
Country
US
Tail
N8940Q
Type
B38M
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
750
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AC5697.

Country allocation

The ICAO 24-bit address AC5697 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
SWA2593 Southwest Airlines 6 2026-04-25
SWA2310 - 6 2026-07-07
SWA3547 Southwest Airlines 5 2026-07-19
SWA863 Southwest Airlines 4 2026-06-12
SWA551 Southwest Airlines 4 2026-05-26
SWA474 Southwest Airlines 4 2026-05-20
SWA3658 - 4 2026-07-12
SWA334 Southwest Airlines 4 2026-06-15
SWA286 - 4 2026-06-23
SWA2189 Southwest Airlines 4 2026-06-25
SWA2014 Southwest Airlines 4 2026-06-02
SWA1998 Southwest Airlines 4 2026-05-20
SWA1988 Southwest Airlines 4 2026-05-18
SWA1683 - 4 2026-07-04
SWA1578 - 4 2026-04-13
SWA965 - 3 2026-07-17
SWA704 - 3 2026-06-21
SWA581 Southwest Airlines 3 2026-07-02
SWA446 - 3 2026-06-20
SWA4365 Southwest Airlines 3 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1531 PWM → BWI Jul 26, 20:05 UTCJul 26, 21:45 UTC1h 40m
2026-07-26 SWA3224 MDW → SAN Jul 26, 17:00 UTCJul 26, 17:45 UTC45m
2026-07-26 SWA3224 MDW → SAN Jul 26, 17:00 UTCJul 26, 18:39 UTC1h 39m
2026-07-26 SWA4329 TPA → MDW Jul 26, 13:00 UTCJul 26, 15:50 UTC2h 50m
2026-07-26 SWA2964 MDW → BOS Jul 26, 10:35 UTCJul 26, 11:40 UTC1h 5m
2026-07-26 SWA2964 MDW → BOS Jul 26, 10:33 UTCJul 26, 11:34 UTC1h 1m
2026-07-25 SWA349 LAS → PIT Jul 25, 22:55 UTCJul 26, 00:35 UTC1h 40m
2026-07-25 SWA4938 BOI → OAK Jul 25, 19:10 UTCJul 25, 21:35 UTC2h 25m
2026-07-25 SWA4938 BOI → OAK Jul 25, 19:09 UTCJul 25, 21:24 UTC2h 15m
2026-07-25 SWA2473 SJC → LAX Jul 25, 16:00 UTCJul 25, 18:05 UTC2h 5m
2026-07-25 SWA2735 ATL → PHL Jul 25, 12:45 UTCJul 25, 14:50 UTC2h 5m
2026-07-25 SWA3480 BWI → CMH Jul 25, 06:15 UTCJul 25, 09:50 UTC3h 35m
2026-07-25 SWA3480 BWI → CMH Jul 25, 06:15 UTCJul 25, 09:49 UTC3h 34m
2026-07-25 SWA2580 BWI → RSW Jul 25, 04:25 UTCJul 25, 05:10 UTC45m
2026-07-25 SWA2580 BWI → RSW Jul 25, 00:10 UTCJul 25, 02:20 UTC2h 10m
2026-07-24 SWA1587 LAS → SJC Jul 24, 21:45 UTCJul 24, 22:50 UTC1h 5m
2026-07-24 SWA753 MDW → PVD Jul 24, 18:55 UTCJul 24, 20:35 UTC1h 40m
2026-07-24 SWA3475 SNA → OAK Jul 24, 15:15 UTCJul 24, 17:45 UTC2h 30m
2026-07-24 SWA1393 SJC → AUS Jul 24, 11:30 UTCJul 24, 14:00 UTC2h 30m
2026-07-23 SWA4097 OAK → BUR Jul 23, 22:35 UTCJul 24, 01:10 UTC2h 35m
2026-07-23 SWA3698 LAS → SAT Jul 23, 20:00 UTCJul 23, 21:15 UTC1h 15m
2026-07-23 SWA3860 - Jul 23, 18:05 UTCJul 23, 19:00 UTC55m
2026-07-23 SWA3860 SNA → SJC Jul 23, 18:03 UTCJul 23, 18:55 UTC52m
2026-07-23 SWA8508 PAE → OAK Jul 23, 16:11 UTCJul 23, 17:10 UTC59m
2026-07-23 SWA8508 PAE → OAK Jul 23, 16:15 UTCJul 23, 17:15 UTC1h 0m
2026-07-23 SWA3210 MCO → BDL Jul 23, 01:45 UTCJul 23, 03:10 UTC1h 25m
2026-07-22 SWA639 MCO → PHL Jul 22, 19:50 UTCJul 22, 22:55 UTC3h 5m
2026-07-22 SWA1370 BWI → ALB Jul 22, 17:25 UTCJul 22, 18:30 UTC1h 5m
2026-07-22 SWA1370 BWI → ALB Jul 22, 14:45 UTCJul 22, 16:05 UTC1h 20m
2026-07-22 SWA1370 BWI → ALB Jul 22, 11:50 UTCJul 22, 13:35 UTC1h 45m
2026-07-22 SWA2941 DEN → OAK Jul 22, 02:50 UTCJul 22, 04:15 UTC1h 25m
2026-07-22 SWA2941 DEN → OAK Jul 22, 02:45 UTCJul 22, 04:03 UTC1h 18m
2026-07-21 SWA4733 MCO → DCA Jul 21, 21:30 UTCJul 21, 22:45 UTC1h 15m
2026-07-21 SWA1860 MSP → MDW Jul 21, 19:05 UTCJul 21, 19:45 UTC40m
2026-07-21 SWA442 BWI → BOS Jul 21, 16:20 UTCJul 21, 18:00 UTC1h 40m
2026-07-21 SWA4149 DEN → SAT Jul 21, 13:30 UTCJul 21, 15:10 UTC1h 40m
2026-07-21 SWA4149 DEN → SAT Jul 21, 13:26 UTCJul 21, 15:08 UTC1h 42m
2026-07-21 SWA4568 DEN → RNO Jul 21, 10:50 UTCJul 21, 12:00 UTC1h 10m
2026-07-21 SWA909 - Jul 21, 04:05 UTCJul 21, 04:55 UTC50m
2026-07-21 SWA909 BWI → CLE Jul 21, 04:01 UTCJul 21, 04:50 UTC49m
2026-07-21 SWA467 BNA → BWI Jul 21, 01:25 UTCJul 21, 02:50 UTC1h 25m
2026-07-20 SWA4799 - Jul 20, 22:20 UTCJul 21, 00:10 UTC1h 49m
2026-07-20 SWA1361 AUS → ONT Jul 20, 17:15 UTCJul 20, 20:00 UTC2h 45m
2026-07-20 SWA1361 AUS → ONT Jul 20, 13:30 UTCJul 20, 15:55 UTC2h 25m
2026-07-20 SWA4116 SMF → LAS Jul 20, 00:45 UTCJul 20, 01:50 UTC1h 5m
2026-07-19 SWA3547 OAK → BUR Jul 19, 22:25 UTCJul 19, 23:35 UTC1h 10m
2026-07-19 SWA3547 OAK → BUR Jul 19, 22:22 UTCJul 19, 23:29 UTC1h 7m
2026-07-19 SWA3525 MDW → ORF Jul 19, 20:00 UTCJul 19, 21:15 UTC1h 15m
2026-07-18 SWA185 ATL → LGA Jul 18, 18:30 UTCJul 18, 20:00 UTC1h 30m
2026-07-18 SWA185 ATL → LGA Jul 18, 18:30 UTCJul 18, 20:01 UTC1h 32m

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 N8940Q page for operator, model, and routing details .

Mode-S AC5697 frequently asked

What is Mode-S code AC5697?
AC5697 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8940Q.
Where is Mode-S AC5697 registered?
Mode-S code AC5697 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 AC5697 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5697, octal 53053227, decimal 11,294,359.
What flights does AC5697 operate?
Mode-S AC5697 has broadcast 20 distinct callsigns, including SWA2593, SWA2310, SWA3547, SWA863, SWA551.