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sensors Mode-S transponder

AAAE1B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7879A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AAAE1B
Octal
52527033
Decimal
11,185,691
Country
US
Tail
N7879A
Type
B737
Broadcasting now · callsign SWA4431 · 4,700 ft
Flights observed
624
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

AAAE1B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AAAE1B 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
SWA1604 Southwest Airlines 6 2026-04-27
SWA120 - 6 2026-06-13
SWA866 - 5 2026-07-12
SWA8 Southwest Airlines 5 2026-05-29
SWA3937 Southwest Airlines 5 2026-05-10
SWA3884 Southwest Airlines 5 2026-05-14
SWA2335 - 5 2026-07-12
SWA1758 Southwest Airlines 5 2026-05-15
SWA4758 - 4 2026-07-10
SWA4496 - 4 2026-06-29
SWA3711 Southwest Airlines 4 2026-06-07
SWA3312 Southwest Airlines 4 2026-05-17
SWA297 Southwest Airlines 4 2026-06-05
SWA236 - 4 2026-06-29
SWA223 Southwest Airlines 4 2026-06-01
SWA19 Southwest Airlines 4 2026-06-06
SWA1706 Southwest Airlines 4 2026-05-01
SWA1518 Southwest Airlines 4 2026-06-03
SWA1372 Southwest Airlines 4 2026-04-22
SWA1204 Southwest Airlines 4 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA4389 - Jul 14, 00:25 UTCJul 14, 02:00 UTC1h 35m
2026-07-13 SWA4389 - Jul 13, 20:40 UTCJul 13, 21:45 UTC1h 5m
2026-07-13 SWA2451 - Jul 13, 18:55 UTCJul 13, 19:45 UTC50m
2026-07-13 SWA2451 LGA → DAL Jul 13, 14:55 UTCJul 13, 17:50 UTC2h 55m
2026-07-13 SWA4939 - Jul 13, 10:45 UTCJul 13, 12:50 UTC2h 5m
2026-07-13 SWA3962 - Jul 13, 02:45 UTCJul 13, 04:15 UTC1h 30m
2026-07-13 SWA4704 - Jul 13, 01:01 UTCJul 13, 01:45 UTC45m
2026-07-12 SWA35 - Jul 12, 23:10 UTCJul 12, 23:50 UTC40m
2026-07-12 SWA35 - Jul 12, 21:10 UTCJul 12, 22:15 UTC1h 5m
2026-07-12 SWA866 AUS → DAL Jul 12, 19:31 UTCJul 12, 20:11 UTC40m
2026-07-12 SWA866 - Jul 12, 15:20 UTCJul 12, 18:20 UTC3h 0m
2026-07-12 SWA186 ATL → BWI Jul 12, 12:45 UTCJul 12, 14:10 UTC1h 25m
2026-07-12 SWA2179 LAS → ATL Jul 12, 06:05 UTCJul 12, 09:35 UTC3h 30m
2026-07-12 SWA2335 SJC → LAS Jul 12, 02:30 UTCJul 12, 03:35 UTC1h 5m
2026-07-12 SWA2335 - Jul 12, 00:20 UTCJul 12, 01:35 UTC1h 15m
2026-07-11 SWA4095 - Jul 11, 21:35 UTCJul 11, 23:15 UTC1h 40m
2026-07-11 SWA4811 SJC → SAN Jul 11, 19:31 UTCJul 11, 20:42 UTC1h 11m
2026-07-11 SWA3860 - Jul 11, 17:35 UTCJul 11, 18:25 UTC50m
2026-07-11 SWA3715 - Jul 11, 15:25 UTCJul 11, 16:05 UTC40m
2026-07-11 SWA1559 DEN → LAS Jul 11, 12:45 UTCJul 11, 14:10 UTC1h 25m
2026-07-11 SWA1559 DEN → LAS Jul 11, 12:43 UTCJul 11, 14:07 UTC1h 24m
2026-07-11 SWA1538 - Jul 11, 01:15 UTCJul 11, 03:10 UTC1h 55m
2026-07-10 SWA4300 - Jul 10, 21:35 UTCJul 11, 00:15 UTC2h 40m
2026-07-10 SWA4300 DAL → SNA Jul 10, 21:35 UTCJul 11, 00:12 UTC2h 37m
2026-07-10 SWA194 ATL → DAL Jul 10, 18:35 UTCJul 10, 20:15 UTC1h 40m
2026-07-10 SWA194 DCA → ATL Jul 10, 16:15 UTCJul 10, 17:35 UTC1h 20m
2026-07-10 SWA2542 - Jul 10, 12:50 UTCJul 10, 14:45 UTC1h 55m
2026-07-10 SWA4758 - Jul 10, 04:45 UTCJul 10, 06:10 UTC1h 25m
2026-07-10 SWA4758 DEN → MCI Jul 10, 04:43 UTCJul 10, 06:11 UTC1h 28m
2026-07-10 SWA4758 - Jul 10, 01:50 UTCJul 10, 03:10 UTC1h 20m
2026-07-09 SWA4758 ATL → PHX Jul 9, 21:25 UTCJul 10, 00:40 UTC3h 15m
2026-07-09 SWA893 - Jul 9, 18:50 UTCJul 9, 19:45 UTC55m
2026-07-09 SWA893 BNA → ATL Jul 9, 18:47 UTCJul 9, 19:38 UTC51m
2026-07-09 SWA705 - Jul 9, 16:20 UTCJul 9, 17:40 UTC1h 20m
2026-07-09 SWA705 - Jul 9, 14:50 UTCJul 9, 15:20 UTC30m
2026-07-09 SWA4550 - Jul 9, 12:55 UTCJul 9, 13:55 UTC1h 0m
2026-07-09 SWA161 - Jul 9, 01:50 UTCJul 9, 02:40 UTC50m
2026-07-08 SWA1624 - Jul 8, 22:10 UTCJul 9, 00:15 UTC2h 5m
2026-07-08 SWA1624 DEN → MIA Jul 8, 17:30 UTCJul 8, 21:05 UTC3h 35m
2026-07-08 SWA1624 - Jul 8, 14:40 UTCJul 8, 16:30 UTC1h 50m
2026-07-08 SWA1590 - Jul 8, 04:50 UTCJul 8, 05:30 UTC40m
2026-07-08 SWA4136 - Jul 8, 02:05 UTCJul 8, 02:55 UTC50m
2026-07-08 SWA4136 RNO → LAS Jul 8, 02:00 UTCJul 8, 02:54 UTC54m
2026-07-08 SWA3331 - Jul 8, 00:00 UTCJul 8, 01:15 UTC1h 15m
2026-07-07 SWA3331 PHX → RNO Jul 7, 23:56 UTCJul 8, 01:18 UTC1h 22m
2026-07-07 SWA3356 SLC → OAK Jul 7, 21:35 UTCJul 7, 22:30 UTC55m
2026-07-07 SWA3356 SLC → OAK Jul 7, 19:30 UTCJul 7, 20:40 UTC1h 10m
2026-07-07 SWA2325 - Jul 7, 17:05 UTCJul 7, 18:15 UTC1h 10m
2026-07-07 SWA2325 - Jul 7, 15:20 UTCJul 7, 16:05 UTC45m
2026-07-07 SWA321 AUS → LAS Jul 7, 11:10 UTCJul 7, 13:30 UTC2h 20m

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 N7879A page for operator, model, and routing details .

Mode-S AAAE1B frequently asked

What is Mode-S code AAAE1B?
AAAE1B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7879A.
Where is Mode-S AAAE1B registered?
Mode-S code AAAE1B 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 AAAE1B broadcasting right now?
Yes. Mode-S AAAE1B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAAE1B, octal 52527033, decimal 11,185,691.
What flights does AAAE1B operate?
Mode-S AAAE1B has broadcast 20 distinct callsigns, including SWA1604, SWA120, SWA866, SWA8, SWA3937.