sensors Mode-S transponder

ADE66F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N995NN · BOEING 737-800 · operated by AMERICAN AIRLINES INC

Hex
ADE66F
Octal
53363157
Decimal
11,396,719
Country
US
Tail
N995NN
Type
B738
No current signal · last broadcast 2h ago
Flights observed
251
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S ADE66F.

Country allocation

The ICAO 24-bit address ADE66F 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AAL2095 PHL → ORD May 29, 19:30 UTCMay 29, 21:25 UTC1h 55m
2026-05-29 AAL2344 MIA → ORD May 29, 14:50 UTCMay 29, 17:55 UTC3h 5m
2026-05-28 AAL3158 SAF → DFW May 28, 22:10 UTCMay 29, 01:40 UTC3h 30m
2026-05-28 AAL2822 AUS → PHX May 28, 17:55 UTCMay 28, 20:00 UTC2h 5m
2026-05-28 AAL2822 AUS → PHX May 28, 14:00 UTCMay 28, 16:10 UTC2h 10m
2026-05-28 AAL444 FLL → PHL May 28, 10:10 UTCMay 28, 12:20 UTC2h 10m
2026-05-27 AAL1864 MSN → CLT May 27, 22:25 UTCMay 28, 00:55 UTC2h 30m
2026-05-27 AAL1684 PHL → MCO May 27, 18:00 UTCMay 27, 20:20 UTC2h 20m
2026-05-27 AAL1684 PHL → MCO May 27, 17:59 UTCMay 27, 20:17 UTC2h 18m
2026-05-27 AAL3020 PHL → DEN May 27, 13:15 UTCMay 27, 15:35 UTC2h 20m
2026-05-27 AAL3020 PHL → DEN May 27, 13:07 UTCMay 27, 15:31 UTC2h 24m
2026-05-26 AAL2755 BOS → MIA May 26, 22:15 UTCMay 27, 00:19 UTC2h 5m
2026-05-26 AAL2515 TPA → DFW May 26, 16:51 UTCMay 26, 20:00 UTC3h 9m
2026-05-26 AAL2515 TPA → DFW May 26, 12:40 UTCMay 26, 19:45 UTC7h 5m
2026-05-25 AAL1938 LAX → ORD May 25, 23:45 UTCMay 26, 02:10 UTC2h 25m
2026-05-25 AAL1938 LAX → ORD May 25, 19:50 UTCMay 25, 22:00 UTC2h 10m
2026-05-25 AAL815 CLT → ORD May 25, 15:10 UTCMay 25, 18:05 UTC2h 55m
2026-05-25 AAL815 CLT → ORD May 25, 11:05 UTCMay 25, 13:40 UTC2h 35m
2026-05-25 AAL1596 BNA → PHL May 25, 04:00 UTCMay 25, 05:35 UTC1h 35m
2026-05-25 AAL3131 DFW → DTW May 25, 01:55 UTCMay 25, 02:25 UTC30m
2026-05-25 AAL3131 DFW → DTW May 25, 00:41 UTCMay 25, 02:21 UTC1h 40m
2026-05-24 AAL1508 RDU → LGA May 24, 19:35 UTCMay 24, 21:05 UTC1h 30m
2026-05-24 AAL1508 RDU → LGA May 24, 19:00 UTCMay 24, 19:25 UTC25m
2026-05-24 AAL1508 RDU → LGA May 24, 18:48 UTCMay 24, 21:03 UTC2h 15m
2026-05-24 AAL495 JFK → CLT May 24, 15:25 UTCMay 24, 17:25 UTC2h 0m
2026-05-24 AAL2313 PIT → MIA May 24, 10:25 UTCMay 24, 12:40 UTC2h 15m
2026-05-24 AAL1962 CLT → PIT May 24, 03:00 UTCMay 24, 04:05 UTC1h 5m
2026-05-24 AAL1962 CLT → PIT May 24, 02:56 UTCMay 24, 04:03 UTC1h 7m
2026-05-23 AAL2788 COS → DFW May 23, 15:05 UTCMay 24, 00:55 UTC9h 51m
2026-05-23 AAL2133 LGA → DCA May 23, 11:40 UTCMay 23, 13:15 UTC1h 35m
2026-05-23 AAL2133 LGA → DCA May 23, 11:35 UTCMay 23, 13:14 UTC1h 39m
2026-05-23 AAL2169 DCA → BOS May 23, 00:10 UTCMay 23, 01:45 UTC1h 35m
2026-05-22 AAL2318 IND → PHX May 22, 21:10 UTCMay 22, 22:50 UTC1h 40m
2026-05-22 AAL2318 IND → PHX May 22, 21:07 UTCMay 22, 22:51 UTC1h 44m
2026-05-22 AAL2318 IND → PHX May 22, 18:15 UTCMay 22, 19:50 UTC1h 35m
2026-05-22 AAL1944 TPA → DCA May 22, 15:35 UTCMay 22, 16:50 UTC1h 15m
2026-05-22 AAL1944 TPA → DCA May 22, 13:10 UTCMay 22, 14:15 UTC1h 5m
2026-05-22 AAL3084 BOS → DCA May 22, 10:05 UTCMay 22, 11:40 UTC1h 35m
2026-05-22 AAL679 PHL → SFO May 22, 02:04 UTCMay 22, 03:36 UTC1h 32m
2026-05-22 AAL679 PHL → SFO May 22, 02:05 UTCMay 22, 03:35 UTC1h 30m
2026-05-21 AAL1936 ORD → PIT May 21, 21:45 UTCMay 21, 23:50 UTC2h 5m
2026-05-21 AAL1936 ORD → PIT May 21, 18:35 UTCMay 21, 20:10 UTC1h 35m
2026-05-21 AAL1221 PLS → ORD May 21, 00:29 UTCMay 21, 02:11 UTC1h 42m
2026-05-21 AAL1221 PLS → ORD May 21, 00:30 UTCMay 21, 02:15 UTC1h 45m
2026-05-20 AAL2470 CLT → LAS May 20, 19:45 UTCMay 20, 22:35 UTC2h 50m
2026-05-20 AAL2470 CLT → LAS May 20, 15:55 UTCMay 20, 18:25 UTC2h 30m
2026-05-19 AAL1432 FLL → PHL May 19, 17:50 UTCMay 20, 13:35 UTC19h 46m
2026-05-19 AAL1542 PHX → DCA May 19, 16:30 UTCMay 20, 13:35 UTC21h 6m
2026-05-19 AAL3246 PHL → SDF May 19, 11:40 UTCMay 19, 13:35 UTC1h 55m
2026-05-19 AAL3246 PHL → SDF May 19, 11:39 UTCMay 19, 13:23 UTC1h 44m

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 N995NN page for operator, model, and routing details .

Mode-S ADE66F frequently asked

What is Mode-S code ADE66F?
ADE66F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N995NN.
Where is Mode-S ADE66F registered?
Mode-S code ADE66F 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 ADE66F broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADE66F, octal 53363157, decimal 11,396,719.
What flights does ADE66F operate?
Mode-S ADE66F has broadcast 20 distinct callsigns, including AAL2271, AAL620, AAL3069, AAL2684, AAL2649.