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sensors Mode-S transponder

AAB1AF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7888A · BOEING 737-700 · operated by BANK OF UTAH TRUSTEE

Hex
AAB1AF
Octal
52530657
Decimal
11,186,607
Country
US
Tail
N7888A
Type
B737
No current signal · last broadcast 27m ago
Flights observed
691
Distinct callsigns
20
Country
US
Last broadcast
27m ago

Last known position

Most recent position reported by Mode-S AAB1AF.

Country allocation

The ICAO 24-bit address AAB1AF 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
SWA915 Southwest Airlines 9 2026-05-15
SWA2329 Southwest Airlines 7 2026-05-30
SWA766 - 5 2026-07-08
SWA470 Southwest Airlines 5 2026-05-21
SWA374 Southwest Airlines 5 2026-06-01
SWA3130 - 5 2026-07-06
SWA860 - 4 2026-06-29
SWA792 - 4 2026-06-20
SWA4442 - 4 2026-07-05
SWA416 Southwest Airlines 4 2026-05-18
SWA3900 Southwest Airlines 4 2026-04-14
SWA3845 - 4 2026-07-11
SWA3785 Southwest Airlines 4 2026-05-28
SWA371 Southwest Airlines 4 2026-05-15
SWA284 - 4 2026-07-01
SWA2780 Southwest Airlines 4 2026-04-17
SWA2726 Southwest Airlines 4 2026-05-24
SWA267 Southwest Airlines 4 2026-05-01
SWA2087 Southwest Airlines 4 2026-06-02
SWA187 Southwest Airlines 4 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA4895 LGA → STL Jul 13, 23:50 UTCJul 14, 01:45 UTC1h 55m
2026-07-13 SWA2804 - Jul 13, 20:55 UTCJul 13, 22:30 UTC1h 35m
2026-07-13 SWA2804 MDW → LGA Jul 13, 20:51 UTCJul 13, 22:24 UTC1h 33m
2026-07-13 SWA3409 - Jul 13, 16:50 UTCJul 13, 18:55 UTC2h 5m
2026-07-13 SWA4628 - Jul 13, 15:00 UTCJul 13, 15:50 UTC50m
2026-07-13 SWA4628 BWI → PVD Jul 13, 14:55 UTCJul 13, 15:46 UTC51m
2026-07-13 SWA1899 - Jul 13, 12:50 UTCJul 13, 13:50 UTC1h 0m
2026-07-13 SWA4437 - Jul 13, 00:20 UTCJul 13, 01:30 UTC1h 10m
2026-07-12 SWA4209 - Jul 12, 21:40 UTCJul 12, 22:55 UTC1h 15m
2026-07-12 SWA4209 - Jul 12, 19:50 UTCJul 12, 20:35 UTC45m
2026-07-12 SWA2716 MSP → MDW Jul 12, 17:40 UTCJul 12, 18:45 UTC1h 5m
2026-07-12 SWA2869 - Jul 12, 15:30 UTCJul 12, 16:30 UTC1h 0m
2026-07-12 SWA2869 MDW → MSP Jul 12, 15:29 UTCJul 12, 16:25 UTC56m
2026-07-12 SWA3378 - Jul 12, 12:50 UTCJul 12, 13:50 UTC1h 0m
2026-07-12 SWA3378 PIT → MDW Jul 12, 12:46 UTCJul 12, 13:51 UTC1h 5m
2026-07-12 SWA4164 - Jul 12, 02:35 UTCJul 12, 03:05 UTC30m
2026-07-12 SWA4164 BWI → PIT Jul 12, 02:32 UTCJul 12, 03:06 UTC34m
2026-07-11 SWA3709 TPA → BWI Jul 11, 23:45 UTCJul 12, 01:40 UTC1h 55m
2026-07-11 SWA4132 STL → TPA Jul 11, 20:10 UTCJul 11, 22:15 UTC2h 5m
2026-07-11 SWA4132 STL → TPA Jul 11, 20:10 UTCJul 11, 22:12 UTC2h 2m
2026-07-11 SWA5066 CMH → BWI Jul 11, 17:30 UTCJul 11, 19:05 UTC1h 35m
2026-07-11 SWA3493 SAN → DEN Jul 11, 14:27 UTCJul 11, 16:22 UTC1h 55m
2026-07-11 SWA3493 - Jul 11, 14:30 UTCJul 11, 16:25 UTC1h 55m
2026-07-11 SWA3426 PHX → SAN Jul 11, 05:31 UTCJul 11, 06:15 UTC45m
2026-07-11 SWA3526 SAN → PHX Jul 11, 03:55 UTCJul 11, 04:50 UTC55m
2026-07-11 SWA3526 - Jul 11, 02:00 UTCJul 11, 03:05 UTC1h 5m
2026-07-11 SWA3845 - Jul 11, 00:00 UTCJul 11, 00:50 UTC50m
2026-07-10 SWA3845 LAS → ONT Jul 10, 22:50 UTCJul 10, 23:20 UTC30m
2026-07-10 SWA3257 COS → LAS Jul 10, 20:00 UTCJul 10, 21:35 UTC1h 35m
2026-07-10 SWA3257 - Jul 10, 17:25 UTCJul 10, 18:55 UTC1h 30m
2026-07-10 SWA3906 SAN → DAL Jul 10, 13:38 UTCJul 10, 16:16 UTC2h 39m
2026-07-10 SWA3906 - Jul 10, 13:40 UTCJul 10, 16:20 UTC2h 40m
2026-07-10 SWA1227 LAS → SAN Jul 10, 05:00 UTCJul 10, 05:45 UTC45m
2026-07-10 SWA1227 LAS → SAN Jul 10, 05:00 UTCJul 10, 05:43 UTC43m
2026-07-10 SWA1227 - Jul 10, 02:30 UTCJul 10, 04:00 UTC1h 30m
2026-07-10 SWA3064 PHX → COS Jul 10, 00:15 UTCJul 10, 01:30 UTC1h 15m
2026-07-09 SWA4237 - Jul 9, 21:50 UTCJul 9, 23:20 UTC1h 30m
2026-07-09 SWA1677 - Jul 9, 19:25 UTCJul 9, 20:35 UTC1h 10m
2026-07-09 SWA1677 - Jul 9, 16:25 UTCJul 9, 17:15 UTC50m
2026-07-09 SWA813 BUR → PHX Jul 9, 14:25 UTCJul 9, 15:20 UTC55m
2026-07-09 SWA813 BUR → PHX Jul 9, 14:20 UTCJul 9, 15:19 UTC1h 0m
2026-07-09 SWA557 AUS → BUR Jul 9, 01:55 UTCJul 9, 04:40 UTC2h 45m
2026-07-08 SWA766 - Jul 8, 23:25 UTCJul 9, 00:45 UTC1h 20m
2026-07-08 SWA766 - Jul 8, 21:20 UTCJul 8, 22:20 UTC1h 0m
2026-07-08 SWA766 - Jul 8, 19:20 UTCJul 8, 20:25 UTC1h 5m
2026-07-08 SWA766 - Jul 8, 17:35 UTCJul 8, 18:20 UTC45m
2026-07-08 SWA766 - Jul 8, 15:20 UTCJul 8, 16:20 UTC1h 0m
2026-07-08 SWA3529 DCA → PVD Jul 8, 13:20 UTCJul 8, 14:15 UTC55m
2026-07-08 SWA3529 BNA → DCA Jul 8, 10:50 UTCJul 8, 12:05 UTC1h 15m
2026-07-08 SWA1083 - Jul 8, 02:15 UTCJul 8, 03:45 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 N7888A page for operator, model, and routing details .

Mode-S AAB1AF frequently asked

What is Mode-S code AAB1AF?
AAB1AF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7888A.
Where is Mode-S AAB1AF registered?
Mode-S code AAB1AF 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 AAB1AF broadcasting right now?
No active broadcast right now. Last signal was 27m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAB1AF, octal 52530657, decimal 11,186,607.
What flights does AAB1AF operate?
Mode-S AAB1AF has broadcast 20 distinct callsigns, including SWA915, SWA2329, SWA766, SWA470, SWA374.