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sensors Mode-S transponder

AA7A3C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7740A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AA7A3C
Octal
52475074
Decimal
11,172,412
Country
US
Tail
N7740A
Type
B737
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
788
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S AA7A3C.

Country allocation

The ICAO 24-bit address AA7A3C 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
SWA487 Southwest Airlines 7 2026-05-07
SWA2422 - 7 2026-07-13
SWA1097 - 7 2026-07-14
SWA1090 - 7 2026-07-06
SWA3616 Southwest Airlines 6 2026-04-22
SWA184 - 6 2026-06-19
SWA103 Southwest Airlines 6 2026-06-06
SWA913 - 5 2026-07-07
SWA3778 Southwest Airlines 5 2026-05-04
SWA3335 Southwest Airlines 5 2026-05-08
SWA2396 Southwest Airlines 5 2026-07-21
SWA1768 - 5 2026-07-06
SWA1533 Southwest Airlines 5 2026-04-29
SWA1432 - 5 2026-07-16
SWA1356 - 5 2026-07-09
SWA1157 Southwest Airlines 5 2026-05-29
SWA948 - 4 2026-07-14
SWA937 - 4 2026-06-30
SWA647 Southwest Airlines 4 2026-07-01
SWA4591 - 4 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2583 ATL → DEN Jul 26, 22:45 UTCJul 26, 23:00 UTC15m
2026-07-26 SWA2583 ATL → DEN Jul 26, 20:35 UTCJul 26, 21:30 UTC55m
2026-07-26 SWA257 RNO → LAS Jul 26, 18:30 UTCJul 26, 19:15 UTC45m
2026-07-26 SWA257 RNO → LAS Jul 26, 16:10 UTCJul 26, 17:15 UTC1h 5m
2026-07-26 SWA845 ISP → BWI Jul 26, 14:05 UTCJul 26, 15:00 UTC55m
2026-07-26 SWA482 BWI → ALB Jul 26, 04:15 UTCJul 26, 05:10 UTC55m
2026-07-26 SWA482 BWI → ALB Jul 26, 04:13 UTCJul 26, 05:05 UTC52m
2026-07-26 SWA2102 MSY → MCO Jul 26, 02:05 UTCJul 26, 03:35 UTC1h 30m
2026-07-25 SWA4102 TPA → SAT Jul 25, 22:35 UTCJul 26, 00:35 UTC2h 0m
2026-07-25 SWA488 DCA → PVD Jul 25, 20:20 UTCJul 25, 21:40 UTC1h 20m
2026-07-25 SWA488 DCA → PVD Jul 25, 20:17 UTCJul 25, 21:40 UTC1h 23m
2026-07-25 SWA302 OAK → ONT Jul 25, 16:25 UTCJul 25, 18:30 UTC2h 5m
2026-07-25 SWA302 OAK → ONT Jul 25, 16:20 UTCJul 25, 18:23 UTC2h 3m
2026-07-25 SWA3890 MCO → DEN Jul 25, 13:20 UTCJul 25, 15:00 UTC1h 40m
2026-07-25 SWA3890 MCO → DEN Jul 25, 13:15 UTCJul 25, 14:57 UTC1h 42m
2026-07-25 SWA2477 ATL → JAN Jul 25, 04:10 UTCJul 25, 05:00 UTC50m
2026-07-25 SWA2477 ATL → JAN Jul 25, 02:25 UTCJul 25, 03:15 UTC50m
2026-07-25 SWA3713 ALB → TPA Jul 25, 00:20 UTCJul 25, 01:20 UTC1h 0m
2026-07-24 SWA3539 MDW → PIT Jul 24, 22:05 UTCJul 24, 23:00 UTC55m
2026-07-24 SWA4846 CMH → DEN Jul 24, 19:50 UTCJul 24, 20:40 UTC50m
2026-07-24 SWA4134 BWI → MHT Jul 24, 17:55 UTCJul 24, 18:49 UTC54m
2026-07-24 SWA4134 BWI → MHT Jul 24, 18:00 UTCJul 24, 18:55 UTC55m
2026-07-24 SWA712 ALB → BWI Jul 24, 13:50 UTCJul 24, 15:50 UTC2h 0m
2026-07-24 SWA3762 LAX → OAK Jul 24, 04:55 UTCJul 24, 05:55 UTC1h 0m
2026-07-24 SWA2318 ONT → OAK Jul 24, 02:40 UTCJul 24, 03:40 UTC1h 0m
2026-07-24 SWA2318 ONT → OAK Jul 24, 01:00 UTCJul 24, 01:25 UTC25m
2026-07-23 SWA791 SJC → LAX Jul 23, 23:15 UTCJul 23, 23:55 UTC40m
2026-07-23 SWA791 SJC → LAX Jul 23, 23:10 UTCJul 23, 23:50 UTC40m
2026-07-23 SWA4965 MDW → CMH Jul 23, 19:55 UTCJul 23, 21:35 UTC1h 40m
2026-07-23 SWA419 BUR → OAK Jul 23, 17:30 UTCJul 23, 19:05 UTC1h 35m
2026-07-23 SWA3243 - Jul 23, 15:25 UTCJul 23, 16:25 UTC1h 0m
2026-07-23 SWA3243 PHX → BUR Jul 23, 15:20 UTCJul 23, 16:20 UTC1h 0m
2026-07-23 SWA2309 ONT → SJC Jul 23, 13:40 UTCJul 23, 14:20 UTC40m
2026-07-23 SWA4503 SAN → ABQ Jul 23, 03:20 UTCJul 23, 04:30 UTC1h 10m
2026-07-23 SWA4503 SAN → ABQ Jul 23, 03:19 UTCJul 23, 04:27 UTC1h 8m
2026-07-23 SWA1050 ATL → BNA Jul 23, 00:50 UTCJul 23, 02:20 UTC1h 30m
2026-07-22 SWA1050 ATL → BNA Jul 22, 19:20 UTCJul 22, 23:45 UTC4h 25m
2026-07-22 SWA9004 BHM → DAL Jul 22, 17:15 UTCJul 22, 18:10 UTC55m
2026-07-22 SWA9004 BHM → DAL Jul 22, 17:14 UTCJul 22, 18:08 UTC55m
2026-07-21 SWA3747 - Jul 21, 22:45 UTCJul 22, 00:10 UTC1h 25m
2026-07-21 SWA3747 MKE → ALB Jul 21, 22:42 UTCJul 22, 00:05 UTC1h 23m
2026-07-21 SWA2953 OAK → SNA Jul 21, 19:55 UTCJul 21, 21:00 UTC1h 5m
2026-07-21 SWA2953 OAK → SNA Jul 21, 17:55 UTCJul 21, 19:05 UTC1h 10m
2026-07-21 SWA200 BUR → OAK Jul 21, 15:45 UTCJul 21, 17:00 UTC1h 15m
2026-07-21 SWA200 BUR → OAK Jul 21, 15:35 UTCJul 21, 17:00 UTC1h 25m
2026-07-21 SWA2396 BWI → LAS Jul 21, 05:20 UTCJul 21, 06:35 UTC1h 15m
2026-07-21 SWA2396 BWI → LAS Jul 21, 05:17 UTCJul 21, 06:54 UTC1h 37m
2026-07-21 SWA2396 BWI → LAS Jul 21, 03:20 UTCJul 21, 04:20 UTC1h 0m
2026-07-21 SWA2396 BWI → LAS Jul 21, 00:25 UTCJul 21, 02:15 UTC1h 50m
2026-07-20 SWA4982 SAT → SAN Jul 20, 21:25 UTCJul 20, 22:54 UTC1h 30m

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 N7740A page for operator, model, and routing details .

Mode-S AA7A3C frequently asked

What is Mode-S code AA7A3C?
AA7A3C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7740A.
Where is Mode-S AA7A3C registered?
Mode-S code AA7A3C 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 AA7A3C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7A3C, octal 52475074, decimal 11,172,412.
What flights does AA7A3C operate?
Mode-S AA7A3C has broadcast 20 distinct callsigns, including SWA487, SWA2422, SWA1097, SWA1090, SWA3616.