Apparatus

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sensors Mode-S transponder

A8B805

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N661AW · AIRBUS A-320 · operated by U S BANK NA TRUSTEE

Hex
A8B805
Octal
52134005
Decimal
11,057,157
Country
US
Tail
N661AW
Type
A320
No current signal · last broadcast 9h ago
Flights observed
542
Distinct callsigns
20
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A8B805.

Country allocation

The ICAO 24-bit address A8B805 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
AAL2693 - 13 2026-06-29
AAL555 - 10 2026-07-13
AAL2224 American Airlines 10 2026-05-19
AAL2372 American Airlines 9 2026-05-03
AAL2104 - 9 2026-07-10
AAL1763 American Airlines 9 2026-05-30
AAL1419 - 9 2026-07-06
AAL2416 American Airlines 8 2026-05-02
AAL2033 - 8 2026-06-17
AAL1895 - 8 2026-07-08
AAL1787 - 8 2026-07-13
AAL1311 - 8 2026-06-27
AAL633 American Airlines 7 2026-05-01
AAL523 - 7 2026-07-13
AAL2671 - 7 2026-07-11
AAL2365 - 7 2026-07-05
AAL698 American Airlines 6 2026-05-17
AAL2953 American Airlines 6 2026-06-06
AAL2879 - 6 2026-07-01
AAL2116 American Airlines 6 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAL1787 - Jul 13, 23:40 UTCJul 14, 01:10 UTC1h 30m
2026-07-13 AAL1787 ORD → DCA Jul 13, 23:38 UTCJul 14, 01:06 UTC1h 28m
2026-07-13 AAL555 - Jul 13, 20:05 UTCJul 13, 21:15 UTC1h 10m
2026-07-13 AAL555 PIT → ORD Jul 13, 20:03 UTCJul 13, 21:10 UTC1h 7m
2026-07-13 AAL555 - Jul 13, 17:45 UTCJul 13, 18:45 UTC1h 0m
2026-07-13 AAL523 - Jul 13, 15:05 UTCJul 13, 16:30 UTC1h 25m
2026-07-13 AAL523 DCA → ORD Jul 13, 15:01 UTCJul 13, 16:23 UTC1h 22m
2026-07-13 AAL3305 TPA → DCA Jul 13, 12:10 UTCJul 13, 14:05 UTC1h 55m
2026-07-13 AAL544 DCA → TPA Jul 13, 02:05 UTCJul 13, 04:06 UTC2h 1m
2026-07-13 AAL544 DCA → TPA Jul 13, 02:05 UTCJul 13, 04:05 UTC2h 0m
2026-07-12 AAL1787 - Jul 12, 23:30 UTCJul 13, 01:01 UTC1h 30m
2026-07-12 AAL1787 ORD → DCA Jul 12, 23:30 UTCJul 13, 01:03 UTC1h 33m
2026-07-12 AAL555 - Jul 12, 20:15 UTCJul 12, 21:30 UTC1h 15m
2026-07-12 AAL555 PIT → ORD Jul 12, 20:15 UTCJul 12, 21:25 UTC1h 10m
2026-07-12 AAL555 - Jul 12, 18:05 UTCJul 12, 19:05 UTC1h 0m
2026-07-12 AAL523 - Jul 12, 15:10 UTCJul 12, 16:40 UTC1h 30m
2026-07-12 AAL3305 TPA → DCA Jul 12, 12:10 UTCJul 12, 14:05 UTC1h 55m
2026-07-12 AAL3305 TPA → DCA Jul 12, 12:10 UTCJul 12, 14:06 UTC1h 56m
2026-07-11 AAL544 DCA → TPA Jul 11, 23:40 UTCJul 12, 01:30 UTC1h 50m
2026-07-11 AAL2281 - Jul 11, 20:20 UTCJul 11, 22:20 UTC2h 0m
2026-07-11 AAL2281 - Jul 11, 17:25 UTCJul 11, 19:30 UTC2h 5m
2026-07-11 AAL2825 - Jul 11, 15:05 UTCJul 11, 15:50 UTC45m
2026-07-11 AAL2825 CLT → DCA Jul 11, 15:02 UTCJul 11, 15:50 UTC48m
2026-07-11 AAL2967 - Jul 11, 12:45 UTCJul 11, 13:40 UTC55m
2026-07-11 AAL2989 - Jul 11, 04:50 UTCJul 11, 05:45 UTC55m
2026-07-11 AAL2989 CLT → CVG Jul 11, 04:48 UTCJul 11, 05:45 UTC57m
2026-07-11 AAL2671 VPS → CLT Jul 11, 02:20 UTCJul 11, 03:25 UTC1h 5m
2026-07-11 AAL2671 - Jul 11, 00:15 UTCJul 11, 01:20 UTC1h 5m
2026-07-10 AAL804 - Jul 10, 21:15 UTCJul 10, 22:25 UTC1h 10m
2026-07-10 AAL2104 MCO → DCA Jul 10, 16:30 UTCJul 10, 18:20 UTC1h 50m
2026-07-10 AAL2104 DCA → MCO Jul 10, 13:30 UTCJul 10, 15:20 UTC1h 50m
2026-07-09 AAL1787 - Jul 9, 23:15 UTCJul 10, 00:45 UTC1h 30m
2026-07-09 AAL555 - Jul 9, 20:10 UTCJul 9, 21:10 UTC1h 0m
2026-07-09 AAL555 - Jul 9, 17:45 UTCJul 9, 18:45 UTC1h 0m
2026-07-09 AAL523 - Jul 9, 15:05 UTCJul 9, 16:45 UTC1h 40m
2026-07-09 AAL1550 - Jul 9, 12:40 UTCJul 9, 13:55 UTC1h 15m
2026-07-09 AAL1550 DCA → BOS Jul 9, 10:15 UTCJul 9, 11:15 UTC1h 0m
2026-07-09 AAL527 - Jul 9, 01:30 UTCJul 9, 02:25 UTC55m
2026-07-08 AAL1895 - Jul 8, 23:35 UTCJul 8, 23:55 UTC20m
2026-07-08 AAL1895 GSO → CLT Jul 8, 23:33 UTCJul 8, 23:55 UTC22m
2026-07-08 AAL1895 - Jul 8, 21:15 UTCJul 8, 21:40 UTC25m
2026-07-08 AAL2671 - Jul 8, 18:50 UTCJul 8, 19:55 UTC1h 5m
2026-07-08 AAL2671 VPS → CLT Jul 8, 18:44 UTCJul 8, 19:52 UTC1h 8m
2026-07-08 AAL2671 - Jul 8, 15:55 UTCJul 8, 17:05 UTC1h 10m
2026-07-08 AAL1518 - Jul 8, 13:35 UTCJul 8, 14:30 UTC55m
2026-07-08 AAL1518 DCA → CLT Jul 8, 13:33 UTCJul 8, 14:30 UTC57m
2026-07-08 AAL527 - Jul 8, 02:00 UTCJul 8, 02:55 UTC55m
2026-07-08 AAL1895 - Jul 8, 00:15 UTCJul 8, 00:35 UTC20m
2026-07-07 AAL1895 - Jul 7, 22:35 UTCJul 7, 23:00 UTC25m
2026-07-07 AAL2348 - Jul 7, 18:35 UTCJul 7, 20:35 UTC2h 0m

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 N661AW page for operator, model, and routing details .

Mode-S A8B805 frequently asked

What is Mode-S code A8B805?
A8B805 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N661AW.
Where is Mode-S A8B805 registered?
Mode-S code A8B805 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 A8B805 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8B805, octal 52134005, decimal 11,057,157.
What flights does A8B805 operate?
Mode-S A8B805 has broadcast 20 distinct callsigns, including AAL2693, AAL555, AAL2224, AAL2372, AAL2104.