Apparatus

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sensors Mode-S transponder

AD495B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N955XV · operated by AMERICAN AIRLINES INC

Hex
AD495B
Octal
53244533
Decimal
11,356,507
Country
US
Tail
N955XV
Type
A21N
No current signal · last broadcast Jul 26, 19:40 UTC
Flights observed
537
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:40 UTC

Last known position

Most recent position reported by Mode-S AD495B.

Country allocation

The ICAO 24-bit address AD495B 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
AAL1852 American Airlines 8 2026-05-10
AAL3137 - 6 2026-07-12
AAL2420 American Airlines 6 2026-05-17
AAL2074 - 6 2026-07-21
AAL2609 American Airlines 5 2026-05-13
AAL1692 American Airlines 5 2026-06-05
AAL1644 - 5 2026-07-10
AAL1487 American Airlines 5 2026-05-28
AAL973 - 4 2026-07-09
AAL870 American Airlines 4 2026-07-18
AAL783 - 4 2026-07-05
AAL717 - 4 2026-06-14
AAL2851 American Airlines 4 2026-05-11
AAL1385 American Airlines 4 2026-05-25
AAL1318 - 4 2026-06-22
AAL1179 - 4 2026-06-22
AAL1067 - 4 2026-06-16
AAL466 American Airlines 3 2026-05-20
AAL415 - 3 2026-07-01
AAL3273 American Airlines 3 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1649 AUS → TPA Jul 26, 17:20 UTCJul 26, 19:40 UTC2h 20m
2026-07-26 AAL1059 CHS → PHL Jul 26, 13:40 UTCJul 26, 15:40 UTC2h 0m
2026-07-25 AAL2075 MCO → DFW Jul 25, 13:40 UTCJul 25, 15:55 UTC2h 15m
2026-07-25 AAL2075 MCO → DFW Jul 25, 13:39 UTCJul 25, 15:53 UTC2h 14m
2026-07-23 AAL2127 LGA → DCA Jul 23, 15:45 UTCJul 23, 16:55 UTC1h 10m
2026-07-23 AAL1235 MIA → BOS Jul 23, 12:35 UTCJul 23, 14:15 UTC1h 40m
2026-07-23 AAL1235 MIA → BOS Jul 23, 12:29 UTCJul 23, 14:30 UTC2h 1m
2026-07-23 AAL1976 CLT → SYR Jul 23, 02:30 UTCJul 23, 03:50 UTC1h 20m
2026-07-23 AAL2379 DFW → SFO Jul 23, 00:35 UTCJul 23, 01:15 UTC40m
2026-07-22 AAL2379 DFW → SFO Jul 22, 22:35 UTCJul 22, 23:05 UTC30m
2026-07-22 AAL2073 DCA → MSY Jul 22, 19:35 UTCJul 22, 20:50 UTC1h 15m
2026-07-22 AAL2073 DCA → MSY Jul 22, 19:30 UTCJul 22, 20:47 UTC1h 17m
2026-07-22 AAL2119 DCA → LGA Jul 22, 16:15 UTCJul 22, 18:25 UTC2h 10m
2026-07-22 AAL1470 PHX → TPA Jul 22, 13:00 UTCJul 22, 14:05 UTC1h 5m
2026-07-22 AAL608 - Jul 22, 04:05 UTCJul 22, 05:25 UTC1h 20m
2026-07-22 AAL608 CLT → MSY Jul 22, 03:59 UTCJul 22, 05:23 UTC1h 24m
2026-07-22 AAL2496 CZM → ORD Jul 22, 00:05 UTCJul 22, 02:50 UTC2h 45m
2026-07-21 AAL2496 CZM → ORD Jul 21, 20:50 UTCJul 21, 23:05 UTC2h 15m
2026-07-21 AAL2074 - Jul 21, 17:05 UTCJul 21, 18:20 UTC1h 15m
2026-07-21 AAL2074 MCO → CLT Jul 21, 17:00 UTCJul 21, 18:20 UTC1h 20m
2026-07-21 AAL2074 - Jul 21, 14:30 UTCJul 21, 15:35 UTC1h 5m
2026-07-21 AAL1462 - Jul 21, 11:25 UTCJul 21, 13:10 UTC1h 45m
2026-07-20 AAL1422 - Jul 20, 23:50 UTCJul 21, 01:40 UTC1h 50m
2026-07-20 AAL2098 ORD → PHL Jul 20, 21:15 UTCJul 20, 22:30 UTC1h 15m
2026-07-20 AAL1312 - Jul 20, 16:25 UTCJul 20, 18:55 UTC2h 30m
2026-07-20 AAL3289 SBN → DFW Jul 20, 12:00 UTCJul 20, 15:00 UTC3h 0m
2026-07-20 AAL2069 MCO → LGA Jul 20, 00:20 UTCJul 20, 02:30 UTC2h 10m
2026-07-19 AAL2069 - Jul 19, 20:45 UTCJul 19, 23:00 UTC2h 15m
2026-07-19 AAL150Q PHL → LGA Jul 19, 18:10 UTCJul 19, 18:45 UTC35m
2026-07-18 AAL870 PHL → AUA Jul 18, 18:35 UTCJul 18, 22:30 UTC3h 55m
2026-07-18 AAL870 PHL → AUA Jul 18, 17:00 UTCJul 18, 17:15 UTC15m
2026-07-18 AAL870 PHL → AUA Jul 18, 13:05 UTCJul 18, 16:20 UTC3h 15m
2026-07-18 AAL870 PHL → AUA Jul 18, 12:35 UTCJul 18, 12:55 UTC20m
2026-07-17 AAL1200 PHL → PHL Jul 17, 13:10 UTCJul 17, 13:15 UTC5m
2026-07-15 AAL2973 - Jul 15, 21:45 UTCJul 15, 22:45 UTC1h 0m
2026-07-15 AAL2973 DFW → PHL Jul 15, 21:42 UTCJul 16, 00:30 UTC2h 48m
2026-07-15 AAL3019 - Jul 15, 16:40 UTCJul 15, 19:25 UTC2h 45m
2026-07-15 AAL970 LGA → MIA Jul 15, 12:30 UTCJul 15, 14:55 UTC2h 25m
2026-07-14 AAL1389 - Jul 14, 01:15 UTCJul 14, 03:45 UTC2h 30m
2026-07-13 AAL1565 - Jul 13, 20:15 UTCJul 13, 23:05 UTC2h 50m
2026-07-13 AAL1565 - Jul 13, 16:00 UTCJul 13, 18:50 UTC2h 50m
2026-07-13 AAL1870 - Jul 13, 11:25 UTCJul 13, 14:30 UTC3h 5m
2026-07-13 AAL458 - Jul 13, 02:01 UTCJul 13, 05:10 UTC3h 10m
2026-07-12 AAL605 LGA → MIA Jul 12, 21:30 UTCJul 12, 23:55 UTC2h 25m
2026-07-12 AAL3229 - Jul 12, 17:10 UTCJul 12, 18:45 UTC1h 35m
2026-07-12 AAL3229 MIA → LGA Jul 12, 17:10 UTCJul 12, 19:43 UTC2h 33m
2026-07-12 AAL835 - Jul 12, 12:35 UTCJul 12, 15:05 UTC2h 30m
2026-07-12 AAL3137 - Jul 12, 02:45 UTCJul 12, 05:45 UTC3h 0m
2026-07-12 AAL3137 PHX → ORD Jul 12, 02:45 UTCJul 12, 05:44 UTC2h 59m
2026-07-11 AAL86G BNA → PHX Jul 11, 19:45 UTCJul 11, 22:50 UTC3h 5m

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 N955XV page for operator, model, and routing details .

Mode-S AD495B frequently asked

What is Mode-S code AD495B?
AD495B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N955XV.
Where is Mode-S AD495B registered?
Mode-S code AD495B 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 AD495B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD495B, octal 53244533, decimal 11,356,507.
What flights does AD495B operate?
Mode-S AD495B has broadcast 20 distinct callsigns, including AAL1852, AAL3137, AAL2420, AAL2074, AAL2609.