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sensors Mode-S transponder

AC1A72

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8792Q · operated by SOUTHWEST AIRLINES CO

Hex
AC1A72
Octal
53015162
Decimal
11,278,962
Country
US
Tail
N8792Q
Type
B38M
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
694
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S AC1A72.

Country allocation

The ICAO 24-bit address AC1A72 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
SWA1942 - 5 2026-07-18
SWA1496 - 5 2026-06-16
SWA532 Southwest Airlines 4 2026-05-14
SWA3597 - 4 2026-07-11
SWA2888 Southwest Airlines 4 2026-04-16
SWA2209 Southwest Airlines 4 2026-05-29
SWA986 - 3 2026-07-01
SWA905 - 3 2026-07-19
SWA813 Southwest Airlines 3 2026-05-30
SWA790 Southwest Airlines 3 2026-06-03
SWA776 Southwest Airlines 3 2026-04-15
SWA456 - 3 2026-07-18
SWA4420 Southwest Airlines 3 2026-06-19
SWA4408 - 3 2026-06-28
SWA4335 Southwest Airlines 3 2026-05-16
SWA3784 - 3 2026-06-16
SWA3733 - 3 2026-06-20
SWA366 Southwest Airlines 3 2026-05-05
SWA3632 - 3 2026-06-18
SWA3547 Southwest Airlines 3 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3619 DEN → BOS Jul 26, 17:45 UTCJul 26, 21:25 UTC3h 40m
2026-07-26 SWA1406 DAL → TPA Jul 26, 12:40 UTCJul 26, 16:20 UTC3h 40m
2026-07-26 SWA1406 DAL → TPA Jul 26, 12:40 UTCJul 26, 16:16 UTC3h 36m
2026-07-26 SWA3109 STL → BWI Jul 26, 10:50 UTCJul 26, 11:25 UTC35m
2026-07-26 SWA3109 STL → BWI Jul 26, 10:48 UTCJul 26, 11:23 UTC35m
2026-07-26 SWA4087 MKE → SRQ Jul 26, 02:45 UTCJul 26, 04:40 UTC1h 55m
2026-07-25 SWA3045 SFO → MDW Jul 25, 23:25 UTCJul 26, 01:35 UTC2h 10m
2026-07-25 SWA3756 MSP → MDW Jul 25, 19:10 UTCJul 25, 21:35 UTC2h 25m
2026-07-25 SWA3756 MSP → MDW Jul 25, 19:07 UTCJul 25, 21:38 UTC2h 32m
2026-07-25 SWA4041 IND → RSW Jul 25, 16:00 UTCJul 25, 18:00 UTC2h 0m
2026-07-25 SWA4041 IND → RSW Jul 25, 15:59 UTCJul 25, 18:00 UTC2h 1m
2026-07-25 SWA1106 SAN → SJC Jul 25, 12:50 UTCJul 25, 14:50 UTC2h 0m
2026-07-25 SWA1106 SAN → SJC Jul 25, 12:45 UTCJul 25, 14:49 UTC2h 4m
2026-07-25 SWA2385 LAS → AUS Jul 25, 05:15 UTCJul 25, 09:40 UTC4h 25m
2026-07-25 SWA2385 LAS → AUS Jul 25, 05:10 UTCJul 25, 09:38 UTC4h 28m
2026-07-25 SWA4060 IND → ATL Jul 25, 02:25 UTCJul 25, 03:35 UTC1h 10m
2026-07-25 SWA4060 IND → ATL Jul 25, 02:23 UTCJul 25, 03:29 UTC1h 6m
2026-07-25 SWA951 SAN → SFO Jul 25, 00:20 UTCJul 25, 01:35 UTC1h 15m
2026-07-24 SWA193 MKE → BWI Jul 24, 18:20 UTCJul 24, 23:10 UTC4h 50m
2026-07-24 SWA193 MKE → BWI Jul 24, 15:10 UTCJul 24, 17:05 UTC1h 55m
2026-07-24 SWA565 SJC → RNO Jul 24, 12:10 UTCJul 24, 13:30 UTC1h 20m
2026-07-24 SWA536 MDW → RSW Jul 24, 06:20 UTCJul 24, 10:05 UTC3h 45m
2026-07-24 SWA536 MDW → RSW Jul 24, 06:20 UTCJul 24, 09:56 UTC3h 36m
2026-07-24 SWA3585 - Jul 24, 02:25 UTCJul 24, 04:50 UTC2h 25m
2026-07-23 SWA3585 - Jul 23, 23:30 UTCJul 24, 01:15 UTC1h 45m
2026-07-23 SWA2583 ATL → DEN Jul 23, 20:55 UTCJul 23, 22:30 UTC1h 35m
2026-07-23 SWA2583 ATL → DEN Jul 23, 20:52 UTCJul 23, 22:25 UTC1h 33m
2026-07-23 SWA3038 DEN → LGA Jul 23, 17:35 UTCJul 23, 19:45 UTC2h 10m
2026-07-23 SWA3038 DEN → LGA Jul 23, 15:15 UTCJul 23, 16:35 UTC1h 20m
2026-07-23 SWA4439 - Jul 23, 12:50 UTCJul 23, 13:50 UTC1h 0m
2026-07-23 SWA4657 LGA → HOU Jul 23, 09:10 UTCJul 23, 10:30 UTC1h 20m
2026-07-22 SWA4250 SEA → BWI Jul 22, 23:55 UTCJul 23, 01:30 UTC1h 35m
2026-07-22 SWA1603 LAX → SJC Jul 22, 20:30 UTCJul 22, 22:25 UTC1h 55m
2026-07-22 SWA1603 LAX → SJC Jul 22, 20:29 UTCJul 22, 22:17 UTC1h 48m
2026-07-22 SWA4394 DAL → DEN Jul 22, 17:50 UTCJul 22, 19:20 UTC1h 30m
2026-07-22 SWA4394 DAL → DEN Jul 22, 17:48 UTCJul 22, 19:15 UTC1h 27m
2026-07-22 SWA265 AUS → DAL Jul 22, 16:05 UTCJul 22, 16:40 UTC35m
2026-07-22 SWA265 AUS → DAL Jul 22, 16:01 UTCJul 22, 16:36 UTC35m
2026-07-22 SWA1474 BOS → MDW Jul 22, 13:15 UTCJul 22, 15:00 UTC1h 45m
2026-07-22 SWA3221 SJC → DEN Jul 22, 00:15 UTCJul 22, 03:50 UTC3h 35m
2026-07-21 SWA623 LGB → SJC Jul 21, 15:40 UTCJul 21, 17:20 UTC1h 40m
2026-07-21 SWA623 LGB → SJC Jul 21, 15:36 UTCJul 21, 17:13 UTC1h 38m
2026-07-21 SWA1954 - Jul 21, 12:40 UTCJul 21, 14:15 UTC1h 35m
2026-07-21 SWA4617 BWI → DEN Jul 21, 03:00 UTCJul 21, 04:35 UTC1h 35m
2026-07-21 SWA4159 SJC → LAS Jul 21, 00:55 UTCJul 21, 02:05 UTC1h 10m
2026-07-20 SWA4159 SJC → LAS Jul 20, 22:40 UTCJul 20, 23:45 UTC1h 5m
2026-07-20 SWA4734 - Jul 20, 19:45 UTCJul 20, 20:35 UTC50m
2026-07-20 SWA4734 BUF → BWI Jul 20, 19:44 UTCJul 20, 20:30 UTC46m
2026-07-20 SWA894 - Jul 20, 17:55 UTCJul 20, 18:40 UTC45m
2026-07-20 SWA3189 DEN → BUR Jul 20, 16:10 UTCJul 20, 16:30 UTC20m

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 N8792Q page for operator, model, and routing details .

Mode-S AC1A72 frequently asked

What is Mode-S code AC1A72?
AC1A72 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8792Q.
Where is Mode-S AC1A72 registered?
Mode-S code AC1A72 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 AC1A72 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC1A72, octal 53015162, decimal 11,278,962.
What flights does AC1A72 operate?
Mode-S AC1A72 has broadcast 20 distinct callsigns, including SWA1942, SWA1496, SWA532, SWA3597, SWA2888.