Apparatus

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sensors Mode-S transponder

AD2C19

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N948NN · BOEING 737-800 · operated by BANK OF UTAH TRUSTEE

Hex
AD2C19
Octal
53226031
Decimal
11,349,017
Country
US
Tail
N948NN
Type
B738
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
553
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S AD2C19.

Country allocation

The ICAO 24-bit address AD2C19 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
AAL2250 - 5 2026-06-25
AAL1390 American Airlines 5 2026-07-21
AAL487 American Airlines 4 2026-06-03
AAL483 American Airlines 4 2026-06-20
AAL3300 - 4 2026-06-27
AAL2452 American Airlines 4 2026-07-24
AAL1828 American Airlines 4 2026-06-03
AAL928 American Airlines 3 2026-05-07
AAL486 American Airlines 3 2026-04-27
AAL441 American Airlines 3 2026-05-20
AAL3259 American Airlines 3 2026-04-28
AAL3185 American Airlines 3 2026-07-24
AAL3141 American Airlines 3 2026-04-14
AAL2878 American Airlines 3 2026-06-05
AAL2867 American Airlines 3 2026-07-22
AAL2829 American Airlines 3 2026-04-13
AAL2822 American Airlines 3 2026-05-09
AAL2735 American Airlines 3 2026-05-24
AAL2672 American Airlines 3 2026-05-07
AAL2571 American Airlines 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2280 MIA → SFO Jul 26, 20:15 UTCJul 26, 22:15 UTC2h 0m
2026-07-26 AAL2280 MIA → SFO Jul 26, 16:35 UTCJul 26, 18:45 UTC2h 10m
2026-07-26 AAL2561 RSW → ORD Jul 26, 12:10 UTCJul 26, 15:10 UTC3h 0m
2026-07-26 AAL3144 ORD → IAH Jul 26, 04:10 UTCJul 26, 06:00 UTC1h 50m
2026-07-26 AAL3144 ORD → IAH Jul 26, 04:08 UTCJul 26, 06:05 UTC1h 57m
2026-07-25 AAL1844 PBI → DFW Jul 25, 23:40 UTCJul 26, 02:15 UTC2h 35m
2026-07-25 AAL1844 PBI → DFW Jul 25, 18:40 UTCJul 25, 20:20 UTC1h 40m
2026-07-25 AAL2765 ORD → PHX Jul 25, 14:10 UTCJul 25, 17:15 UTC3h 5m
2026-07-25 AAL2544 DFW → TYS Jul 25, 03:35 UTCJul 25, 05:10 UTC1h 35m
2026-07-24 AAL1253 SFO → ORD Jul 24, 22:30 UTCJul 25, 02:25 UTC3h 55m
2026-07-24 AAL1253 SFO → ORD Jul 24, 22:28 UTCJul 25, 02:23 UTC3h 55m
2026-07-24 AAL2452 JAX → PHL Jul 24, 16:55 UTCJul 24, 18:35 UTC1h 40m
2026-07-24 AAL2452 JAX → PHL Jul 24, 14:00 UTCJul 24, 15:40 UTC1h 40m
2026-07-24 AAL3185 PHX → SFO Jul 24, 10:05 UTCJul 24, 12:05 UTC2h 0m
2026-07-23 AAL3253 ORD → EWR Jul 23, 23:10 UTCJul 24, 00:45 UTC1h 35m
2026-07-23 AAL3253 ORD → EWR Jul 23, 23:05 UTCJul 24, 00:35 UTC1h 30m
2026-07-23 AAL1744 DEN → ORD Jul 23, 18:50 UTCJul 23, 20:45 UTC1h 55m
2026-07-23 AAL1744 - Jul 23, 15:25 UTCJul 23, 17:35 UTC2h 10m
2026-07-23 AAL2102 - Jul 23, 11:20 UTCJul 23, 13:30 UTC2h 10m
2026-07-23 AAL2096 BOS → PHL Jul 23, 01:00 UTCJul 23, 02:45 UTC1h 45m
2026-07-23 AAL2096 BOS → PHL Jul 23, 00:56 UTCJul 23, 02:43 UTC1h 47m
2026-07-22 AAL2867 DEN → PHL Jul 22, 20:25 UTCJul 22, 23:20 UTC2h 55m
2026-07-22 AAL2867 DEN → PHL Jul 22, 20:20 UTCJul 22, 23:15 UTC2h 55m
2026-07-22 AAL2867 DEN → PHL Jul 22, 16:10 UTCJul 22, 19:10 UTC3h 0m
2026-07-22 AAL1064 AUS → DFW Jul 22, 11:15 UTCJul 22, 13:15 UTC2h 0m
2026-07-22 AAL1427 PHL → MIA Jul 22, 02:30 UTCJul 22, 04:50 UTC2h 20m
2026-07-22 AAL1427 PHL → MIA Jul 22, 02:27 UTCJul 22, 04:46 UTC2h 19m
2026-07-21 AAL2963 DFW → SDF Jul 21, 23:20 UTCJul 22, 00:33 UTC1h 13m
2026-07-21 AAL2890 DFW → MBJ Jul 21, 18:13 UTCJul 21, 21:46 UTC3h 33m
2026-07-21 AAL1390 DFW → FLL Jul 21, 14:40 UTCJul 21, 15:50 UTC1h 10m
2026-07-21 AAL1390 DFW → FLL Jul 21, 14:39 UTCJul 21, 15:52 UTC1h 13m
2026-07-21 AAL2180 RDU → LGA Jul 21, 11:45 UTCJul 21, 12:15 UTC30m
2026-07-21 AAL2180 RDU → LGA Jul 21, 11:44 UTCJul 21, 13:09 UTC1h 25m
2026-07-21 AAL3168 SLC → ORD Jul 21, 09:10 UTCJul 21, 10:05 UTC55m
2026-07-21 AAL775 MIA → BOS Jul 21, 02:05 UTCJul 21, 04:05 UTC2h 0m
2026-07-21 AAL775 MIA → BOS Jul 21, 02:02 UTCJul 21, 04:02 UTC2h 0m
2026-07-20 AAL1089 OMA → CLT Jul 20, 21:10 UTCJul 20, 23:35 UTC2h 25m
2026-07-20 AAL1089 OMA → CLT Jul 20, 20:15 UTCJul 20, 20:25 UTC10m
2026-07-20 AAL1089 OMA → CLT Jul 20, 15:40 UTCJul 20, 18:50 UTC3h 10m
2026-07-19 AAL1464 - Jul 19, 23:20 UTCJul 20, 13:55 UTC14h 35m
2026-07-19 AAL960 PTY → MIA Jul 19, 18:18 UTCJul 19, 20:46 UTC2h 28m
2026-07-19 AAL960 - Jul 19, 14:20 UTCJul 19, 20:45 UTC6h 25m
2026-07-19 AAL2436 - Jul 19, 12:10 UTCJul 19, 12:35 UTC25m
2026-07-18 AAL2245 DFW → BDL Jul 18, 22:50 UTCJul 18, 23:10 UTC20m
2026-07-18 AAL1338 LIR → MIA Jul 18, 18:54 UTCJul 18, 21:14 UTC2h 20m
2026-07-18 AAL887 - Jul 18, 14:00 UTCJul 18, 21:15 UTC7h 15m
2026-07-18 AAL3131 DFW → DTW Jul 18, 00:29 UTCJul 18, 02:09 UTC1h 40m
2026-07-17 AAL378 BGI → PHL Jul 17, 20:04 UTCJul 17, 21:52 UTC1h 48m
2026-07-17 AAL378 BGI → PHL Jul 17, 17:09 UTCJul 17, 21:55 UTC4h 45m
2026-07-17 AAL1591 - Jul 17, 13:10 UTCJul 17, 14:15 UTC1h 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 N948NN page for operator, model, and routing details .

Mode-S AD2C19 frequently asked

What is Mode-S code AD2C19?
AD2C19 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N948NN.
Where is Mode-S AD2C19 registered?
Mode-S code AD2C19 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 AD2C19 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD2C19, octal 53226031, decimal 11,349,017.
What flights does AD2C19 operate?
Mode-S AD2C19 has broadcast 20 distinct callsigns, including AAL2250, AAL1390, AAL487, AAL483, AAL3300.