Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A41144

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N361NW · AIRBUS A-320 · operated by DELTA AIR LINES INC

Hex
A41144
Octal
51010504
Decimal
10,752,324
Country
US
Tail
N361NW
Type
A320
No current signal · last broadcast Jul 26, 22:05 UTC
Flights observed
541
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:05 UTC

Last known position

Most recent position reported by Mode-S A41144.

Country allocation

The ICAO 24-bit address A41144 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
DAL1145 - 18 2026-07-23
DAL1337 - 17 2026-07-09
DAL866 Delta Air Lines 12 2026-05-24
DAL2926 - 12 2026-07-13
DAL2790 Delta Air Lines 11 2026-05-29
DAL2994 Delta Air Lines 10 2026-07-22
DAL2333 - 10 2026-07-21
DAL2392 - 9 2026-06-16
DAL1377 - 9 2026-07-08
DAL1312 - 8 2026-07-08
DAL1088 - 8 2026-07-17
DAL978 Delta Air Lines 7 2026-05-23
DAL2203 - 7 2026-07-13
DAL1391 Delta Air Lines 7 2026-04-27
DAL1275 Delta Air Lines 7 2026-04-26
DAL920 - 6 2026-07-17
DAL2996 - 6 2026-07-23
DAL2977 - 6 2026-07-10
DAL2898 Delta Air Lines 6 2026-05-23
DAL2875 - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2971 MSP → DFW Jul 26, 20:05 UTCJul 26, 21:55 UTC1h 50m
2026-07-26 DAL2864 ATL → MKE Jul 26, 16:15 UTCJul 26, 18:45 UTC2h 30m
2026-07-26 DAL2864 ATL → MKE Jul 26, 12:30 UTCJul 26, 14:35 UTC2h 5m
2026-07-26 DAL2237 SDF → ATL Jul 26, 10:10 UTCJul 26, 10:45 UTC35m
2026-07-26 DAL2237 SDF → ATL Jul 26, 10:07 UTCJul 26, 10:44 UTC37m
2026-07-25 DAL2278 ATL → IAD Jul 25, 23:30 UTCJul 26, 00:10 UTC40m
2026-07-25 DAL1853 MSP → PUJ Jul 25, 19:55 UTCJul 25, 22:10 UTC2h 15m
2026-07-25 DAL1853 MSP → PUJ Jul 25, 15:40 UTCJul 25, 18:20 UTC2h 40m
2026-07-25 DAL1242 AUS → MSP Jul 25, 11:35 UTCJul 25, 14:00 UTC2h 25m
2026-07-24 DAL2581 SFO → LAX Jul 24, 20:30 UTCJul 24, 22:50 UTC2h 20m
2026-07-24 DAL1754 - Jul 24, 18:10 UTCJul 24, 18:55 UTC45m
2026-07-24 DAL2304 BDL → MSP Jul 24, 14:00 UTCJul 24, 16:40 UTC2h 40m
2026-07-24 DAL2873 AUS → SLC Jul 24, 00:00 UTCJul 24, 01:55 UTC1h 55m
2026-07-23 DAL2873 AUS → SLC Jul 23, 23:56 UTCJul 24, 01:54 UTC1h 58m
2026-07-23 DAL1543 ATL → BDL Jul 23, 20:00 UTCJul 23, 22:05 UTC2h 5m
2026-07-23 DAL1543 ATL → BDL Jul 23, 19:56 UTCJul 23, 22:01 UTC2h 5m
2026-07-23 DAL1145 - Jul 23, 16:15 UTCJul 23, 17:45 UTC1h 30m
2026-07-23 DAL1145 - Jul 23, 13:15 UTCJul 23, 14:45 UTC1h 30m
2026-07-23 DAL2996 - Jul 23, 10:15 UTCJul 23, 11:35 UTC1h 20m
2026-07-23 DAL2996 ALB → DTW Jul 23, 10:13 UTCJul 23, 11:27 UTC1h 14m
2026-07-23 DAL2660 DTW → PHL Jul 23, 02:00 UTCJul 23, 03:05 UTC1h 5m
2026-07-22 DAL2994 SEA → SFO Jul 22, 22:30 UTCJul 23, 00:30 UTC2h 0m
2026-07-22 DAL2994 SEA → SFO Jul 22, 22:29 UTCJul 23, 00:24 UTC1h 55m
2026-07-22 DAL2994 SEA → SFO Jul 22, 19:35 UTCJul 22, 21:25 UTC1h 50m
2026-07-22 DAL1145 - Jul 22, 16:35 UTCJul 22, 18:00 UTC1h 25m
2026-07-22 DAL1145 - Jul 22, 13:55 UTCJul 22, 15:20 UTC1h 25m
2026-07-22 DAL2996 - Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-22 DAL2660 DTW → PHL Jul 22, 02:55 UTCJul 22, 03:55 UTC1h 0m
2026-07-22 DAL2660 DTW → PHL Jul 22, 02:50 UTCJul 22, 03:50 UTC1h 0m
2026-07-21 DAL2994 SEA → SFO Jul 21, 23:20 UTCJul 22, 01:35 UTC2h 15m
2026-07-21 DAL2994 SEA → SFO Jul 21, 19:50 UTCJul 21, 22:05 UTC2h 15m
2026-07-21 DAL2333 - Jul 21, 16:25 UTCJul 21, 18:25 UTC2h 0m
2026-07-21 DAL2333 JAX → DTW Jul 21, 16:21 UTCJul 21, 18:20 UTC1h 59m
2026-07-21 DAL2333 - Jul 21, 12:45 UTCJul 21, 14:45 UTC2h 0m
2026-07-20 DAL1145 - Jul 20, 13:00 UTCJul 20, 13:15 UTC15m
2026-07-20 DAL1441 DFW → DTW Jul 20, 01:45 UTCJul 20, 03:55 UTC2h 10m
2026-07-20 DAL1441 DFW → DTW Jul 20, 01:43 UTCJul 20, 03:51 UTC2h 8m
2026-07-19 DAL1543 - Jul 19, 21:45 UTCJul 20, 00:20 UTC2h 35m
2026-07-19 DAL1543 DTW → DFW Jul 19, 21:41 UTCJul 20, 00:12 UTC2h 31m
2026-07-19 DAL9969 - Jul 19, 19:00 UTCJul 19, 20:20 UTC1h 20m
2026-07-18 DAL2566 - Jul 18, 12:30 UTCJul 18, 13:40 UTC1h 10m
2026-07-18 DAL1484 MSP → DTW Jul 18, 03:45 UTCJul 18, 04:55 UTC1h 10m
2026-07-18 DAL2873 DFW → MSP Jul 18, 00:10 UTCJul 18, 02:05 UTC1h 55m
2026-07-17 DAL2811 SLC → DFW Jul 17, 20:00 UTCJul 17, 22:10 UTC2h 10m
2026-07-17 DAL920 - Jul 17, 17:05 UTCJul 17, 18:25 UTC1h 20m
2026-07-17 DAL920 - Jul 17, 14:15 UTCJul 17, 15:55 UTC1h 40m
2026-07-17 DAL1360 - Jul 17, 11:30 UTCJul 17, 12:25 UTC55m
2026-07-17 DAL1340 - Jul 17, 04:25 UTCJul 17, 04:49 UTC25m
2026-07-17 DAL1340 SLC → BIL Jul 17, 04:23 UTCJul 17, 05:17 UTC54m
2026-07-17 DAL1088 SFO → SLC Jul 17, 01:20 UTCJul 17, 02:45 UTC1h 25m

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 N361NW page for operator, model, and routing details .

Mode-S A41144 frequently asked

What is Mode-S code A41144?
A41144 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N361NW.
Where is Mode-S A41144 registered?
Mode-S code A41144 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 A41144 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A41144, octal 51010504, decimal 10,752,324.
What flights does A41144 operate?
Mode-S A41144 has broadcast 20 distinct callsigns, including DAL1145, DAL1337, DAL866, DAL2926, DAL2790.