Apparatus

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sensors Mode-S transponder

ACD964

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N927NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
ACD964
Octal
53154544
Decimal
11,327,844
Country
US
Tail
N927NN
Type
B738
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
570
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S ACD964.

Country allocation

The ICAO 24-bit address ACD964 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
AAL2578 American Airlines 5 2026-07-23
AAL2512 American Airlines 5 2026-05-04
AAL2271 American Airlines 5 2026-07-06
AAL2225 American Airlines 5 2026-06-08
AAL1529 American Airlines 5 2026-05-31
AAL1312 American Airlines 5 2026-04-18
AAL967 American Airlines 4 2026-05-04
AAL960 American Airlines 4 2026-06-11
AAL874 - 4 2026-07-07
AAL411 American Airlines 4 2026-06-11
AAL3325 American Airlines 4 2026-04-24
AAL3059 American Airlines 4 2026-05-12
AAL2847 American Airlines 4 2026-05-11
AAL2718 - 4 2026-06-26
AAL2352 - 4 2026-06-21
AAL1796 American Airlines 4 2026-07-02
AAL1716 American Airlines 4 2026-07-19
AAL1596 - 4 2026-06-22
AAL1346 - 4 2026-06-20
AAL831 American Airlines 3 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1302 CLT → JAX Jul 26, 19:30 UTCJul 26, 21:00 UTC1h 30m
2026-07-26 AAL3231 RSW → ORD Jul 26, 15:15 UTCJul 26, 17:30 UTC2h 15m
2026-07-25 AAL1331 DFW → SNA Jul 25, 20:25 UTCJul 25, 22:15 UTC1h 50m
2026-07-25 AAL1331 DFW → SNA Jul 25, 19:52 UTCJul 25, 22:18 UTC2h 26m
2026-07-25 AAL1101 BOS → AUS Jul 25, 15:40 UTCJul 25, 18:10 UTC2h 30m
2026-07-25 AAL2193 TUS → DFW Jul 25, 12:05 UTCJul 25, 14:00 UTC1h 55m
2026-07-25 AAL1109 ORD → DFW Jul 25, 04:30 UTCJul 25, 06:20 UTC1h 50m
2026-07-25 AAL2519 RDU → PHX Jul 25, 00:00 UTCJul 25, 01:40 UTC1h 40m
2026-07-24 AAL2519 RDU → PHX Jul 24, 21:05 UTCJul 24, 22:45 UTC1h 40m
2026-07-24 AAL2428 PHL → ORD Jul 24, 16:00 UTCJul 24, 18:20 UTC2h 20m
2026-07-24 AAL2428 PHL → ORD Jul 24, 12:40 UTCJul 24, 15:00 UTC2h 20m
2026-07-23 AAL2891 PHL → EYW Jul 23, 23:45 UTCJul 24, 00:15 UTC30m
2026-07-23 AAL2891 PHL → EYW Jul 23, 23:41 UTCJul 24, 00:14 UTC33m
2026-07-23 AAL2891 PHL → EYW Jul 23, 22:10 UTCJul 23, 22:55 UTC45m
2026-07-23 AAL1397 BOS → MIA Jul 23, 20:00 UTCJul 23, 20:45 UTC45m
2026-07-23 AAL2578 MIA → SAN Jul 23, 17:05 UTCJul 23, 18:10 UTC1h 5m
2026-07-23 AAL2578 MIA → SAN Jul 23, 16:04 UTCJul 23, 18:12 UTC2h 8m
2026-07-23 AAL2578 MIA → SAN Jul 23, 13:06 UTCJul 23, 15:01 UTC1h 55m
2026-07-23 AAL2578 MIA → SAN Jul 23, 13:10 UTCJul 23, 14:00 UTC50m
2026-07-23 AAL789 PHL → CHS Jul 23, 01:10 UTCJul 23, 01:45 UTC35m
2026-07-21 AAL394 MSN → CLT Jul 21, 20:10 UTCJul 21, 22:15 UTC2h 5m
2026-07-21 AAL393 DFW → MEX Jul 21, 16:25 UTCJul 21, 18:30 UTC2h 5m
2026-07-21 AAL1432 FLL → PHL Jul 21, 12:30 UTCJul 21, 14:35 UTC2h 5m
2026-07-21 AAL1432 FLL → PHL Jul 21, 02:00 UTCJul 21, 14:40 UTC12h 40m
2026-07-20 AAL2060 SJU → PHL Jul 20, 21:10 UTCJul 20, 23:55 UTC2h 44m
2026-07-20 AAL1383 MIA → LIR Jul 20, 16:25 UTCJul 20, 18:15 UTC1h 50m
2026-07-20 AAL1383 MIA → LIR Jul 20, 16:21 UTCJul 20, 18:44 UTC2h 23m
2026-07-20 AAL850 GUA → MIA Jul 20, 12:00 UTCJul 20, 14:10 UTC2h 10m
2026-07-20 AAL1027 - Jul 20, 01:30 UTCJul 20, 01:45 UTC15m
2026-07-19 AAL1027 - Jul 19, 23:30 UTCJul 20, 01:00 UTC1h 30m
2026-07-19 AAL1027 MIA → GUA Jul 19, 23:28 UTCJul 20, 01:04 UTC1h 36m
2026-07-19 AAL1124 - Jul 19, 20:35 UTCJul 19, 21:00 UTC25m
2026-07-19 AAL1124 - Jul 19, 18:45 UTCJul 19, 18:55 UTC10m
2026-07-19 AAL1125 - Jul 19, 15:00 UTCJul 19, 17:10 UTC2h 10m
2026-07-19 AAL1125 MIA → BAQ Jul 19, 14:57 UTCJul 19, 17:13 UTC2h 16m
2026-07-19 AAL1716 IND → CLT Jul 19, 10:17 UTCJul 19, 12:37 UTC2h 20m
2026-07-19 AAL1716 IND → CLT Jul 19, 10:20 UTCJul 19, 12:40 UTC2h 20m
2026-07-19 AAL890 PHX → STL Jul 19, 02:16 UTCJul 19, 04:58 UTC2h 42m
2026-07-19 AAL890 PHX → STL Jul 19, 02:20 UTCJul 19, 05:00 UTC2h 40m
2026-07-18 AAL2624 ORD → PHX Jul 18, 21:35 UTCJul 19, 00:40 UTC3h 5m
2026-07-18 AAL831 ALB → CLT Jul 18, 17:05 UTCJul 18, 19:55 UTC2h 50m
2026-07-18 AAL831 ALB → CLT Jul 18, 16:38 UTCJul 18, 19:50 UTC3h 12m
2026-07-18 AAL831 ALB → CLT Jul 18, 12:10 UTCJul 18, 14:40 UTC2h 30m
2026-07-18 AAL2592 DCA → BTV Jul 18, 08:05 UTCJul 18, 10:00 UTC1h 55m
2026-07-18 AAL2592 DCA → BTV Jul 18, 05:45 UTCJul 18, 05:55 UTC10m
2026-07-18 AAL2592 DCA → BTV Jul 18, 05:42 UTCJul 18, 10:10 UTC4h 28m
2026-07-18 AAL1364 PHL → ATL Jul 18, 02:00 UTCJul 18, 02:09 UTC10m
2026-07-18 AAL1364 PHL → ATL Jul 18, 00:00 UTCJul 18, 00:25 UTC25m
2026-07-17 AAL1600 SJO → MIA Jul 17, 19:05 UTCJul 17, 21:34 UTC2h 30m
2026-07-17 AAL1593 - Jul 17, 15:20 UTCJul 17, 16:59 UTC1h 40m

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 N927NN page for operator, model, and routing details .

Mode-S ACD964 frequently asked

What is Mode-S code ACD964?
ACD964 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N927NN.
Where is Mode-S ACD964 registered?
Mode-S code ACD964 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 ACD964 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD964, octal 53154544, decimal 11,327,844.
What flights does ACD964 operate?
Mode-S ACD964 has broadcast 20 distinct callsigns, including AAL2578, AAL2512, AAL2271, AAL2225, AAL1529.