Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A42EE9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N369NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A42EE9
Octal
51027351
Decimal
10,759,913
Country
US
Tail
N369NB
Type
A319
No current signal · last broadcast Apr 25, 17:50 UTC
Flights observed
75
Distinct callsigns
20
Country
US
Last broadcast
Apr 25, 17:50 UTC

Last known position

Most recent position reported by Mode-S A42EE9.

Country allocation

The ICAO 24-bit address A42EE9 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
DAL2568 Delta Air Lines 5 2026-04-14
DAL2529 Delta Air Lines 5 2026-04-22
DAL2551 Delta Air Lines 4 2026-04-16
DAL1367 - 4 2026-04-16
DAL3118 Delta Air Lines 3 2026-04-24
DAL2725 Delta Air Lines 3 2026-04-23
DAL2574 Delta Air Lines 3 2026-04-23
DAL2337 Delta Air Lines 3 2026-04-14
DAL2008 Delta Air Lines 3 2026-04-17
DAL1546 - 3 2026-04-13
DAL1492 Delta Air Lines 3 2026-04-17
DAL1012 Delta Air Lines 3 2026-04-22
DAL9951 Delta Air Lines 2 2026-04-25
DAL559 Delta Air Lines 2 2026-04-22
DAL2421 Delta Air Lines 2 2026-04-16
DAL2168 Delta Air Lines 2 2026-04-24
DAL1471 Delta Air Lines 2 2026-04-23
DAL1061 Delta Air Lines 2 2026-04-15
DAL1003 Delta Air Lines 2 2026-04-19
DAL986 Delta Air Lines 1 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-04-25 DAL9951 ATL → SAL Apr 25, 15:00 UTCApr 25, 18:06 UTC3h 6m
2026-04-25 DAL9951 ATL → SAL Apr 25, 15:00 UTCApr 25, 16:05 UTC1h 5m
2026-04-24 DAL2168 LGA → ATL Apr 24, 22:40 UTCApr 25, 00:20 UTC1h 40m
2026-04-24 DAL2168 LGA → ATL Apr 24, 19:45 UTCApr 24, 21:10 UTC1h 25m
2026-04-24 DAL3118 MLB → ATL Apr 24, 16:40 UTCApr 24, 17:45 UTC1h 5m
2026-04-24 DAL3118 MLB → ATL Apr 24, 16:36 UTCApr 24, 17:42 UTC1h 6m
2026-04-24 DAL3118 MLB → ATL Apr 24, 14:05 UTCApr 24, 15:15 UTC1h 10m
2026-04-24 DAL1237 MSP → FLL Apr 24, 10:35 UTCApr 24, 12:45 UTC2h 10m
2026-04-24 DAL1694 SLC → AUS Apr 24, 03:15 UTCApr 24, 03:55 UTC40m
2026-04-24 DAL1306 MCO → BOS Apr 24, 00:25 UTCApr 24, 01:30 UTC1h 5m
2026-04-23 DAL1471 LAX → PDX Apr 23, 21:45 UTCApr 23, 22:45 UTC1h 0m
2026-04-23 DAL1471 LAX → PDX Apr 23, 21:44 UTCApr 23, 22:41 UTC57m
2026-04-23 DAL2574 BOS → SEA Apr 23, 18:05 UTCApr 23, 20:40 UTC2h 35m
2026-04-23 DAL2574 BOS → SEA Apr 23, 18:01 UTCApr 23, 20:48 UTC2h 47m
2026-04-23 DAL2574 BOS → SEA Apr 23, 14:20 UTCApr 23, 16:35 UTC2h 15m
2026-04-23 DAL1193 SLC → SJC Apr 23, 10:15 UTCApr 23, 12:40 UTC2h 25m
2026-04-23 DAL2725 ATL → AUS Apr 23, 00:50 UTCApr 23, 02:35 UTC1h 45m
2026-04-22 DAL2529 ATL → CLE Apr 22, 21:25 UTCApr 22, 23:40 UTC2h 15m
2026-04-22 DAL1012 FLL → LGA Apr 22, 17:00 UTCApr 22, 19:30 UTC2h 30m
2026-04-22 DAL559 CVG → BOS Apr 22, 13:10 UTCApr 22, 15:45 UTC2h 35m
2026-04-21 DAL1612 JFK → PBI Apr 21, 21:05 UTCApr 21, 23:40 UTC2h 35m
2026-04-21 DAL2371 DTW → PHL Apr 21, 17:10 UTCApr 21, 19:40 UTC2h 30m
2026-04-21 DAL1218 AUS → DTW Apr 21, 13:10 UTCApr 21, 15:55 UTC2h 45m
2026-04-21 DAL2869 ATL → ROC Apr 21, 10:10 UTCApr 21, 11:20 UTC1h 10m
2026-04-21 DAL2725 ATL → AUS Apr 21, 00:50 UTCApr 21, 02:40 UTC1h 50m
2026-04-20 DAL2529 ATL → CLE Apr 20, 21:20 UTCApr 20, 23:20 UTC2h 0m
2026-04-20 DAL2529 ATL → CLE Apr 20, 21:16 UTCApr 20, 23:11 UTC1h 55m
2026-04-20 DAL1012 FLL → LGA Apr 20, 17:15 UTCApr 20, 19:55 UTC2h 40m
2026-04-20 DAL1012 FLL → LGA Apr 20, 17:15 UTCApr 20, 19:51 UTC2h 36m
2026-04-20 DAL559 CVG → BOS Apr 20, 13:15 UTCApr 20, 15:40 UTC2h 25m
2026-04-19 DAL1416 PHX → DTW Apr 19, 21:45 UTCApr 20, 00:15 UTC2h 30m
2026-04-19 DAL2729 BOS → JAX Apr 19, 18:05 UTCApr 19, 20:10 UTC2h 5m
2026-04-19 DAL1003 DTW → BOS Apr 19, 14:55 UTCApr 19, 16:35 UTC1h 40m
2026-04-19 DAL1003 DTW → BOS Apr 19, 11:35 UTCApr 19, 13:40 UTC2h 5m
2026-04-19 DAL2725 ATL → AUS Apr 19, 00:40 UTCApr 19, 02:30 UTC1h 50m
2026-04-18 DAL2529 ATL → CLE Apr 18, 21:25 UTCApr 18, 23:30 UTC2h 5m
2026-04-18 DAL2529 ATL → CLE Apr 18, 21:24 UTCApr 18, 23:27 UTC2h 3m
2026-04-18 DAL986 ATL → SYR Apr 18, 17:40 UTCApr 18, 20:15 UTC2h 35m
2026-04-18 DAL2002 DEN → LAX Apr 18, 13:45 UTCApr 18, 15:50 UTC2h 5m
2026-04-18 DAL1586 DTW → AUS Apr 18, 01:25 UTCApr 18, 02:25 UTC1h 0m
2026-04-17 DAL2008 MSP → LAX Apr 17, 23:25 UTCApr 17, 23:45 UTC20m
2026-04-17 DAL2008 MSP → LAX Apr 17, 23:05 UTCApr 17, 23:45 UTC40m
2026-04-17 DAL2008 MSP → LAX Apr 17, 21:30 UTCApr 17, 21:50 UTC20m
2026-04-17 DAL1492 JFK → DEN Apr 17, 03:20 UTCApr 17, 03:30 UTC10m
2026-04-17 DAL1492 JFK → DEN Apr 17, 01:20 UTCApr 17, 03:15 UTC1h 55m
2026-04-17 DAL1492 JFK → DEN Apr 17, 00:30 UTCApr 17, 01:15 UTC45m
2026-04-16 DAL2421 MSN → ATL Apr 16, 21:14 UTCApr 16, 23:10 UTC1h 55m
2026-04-16 DAL2421 MSN → ATL Apr 16, 20:56 UTCApr 16, 23:15 UTC2h 19m
2026-04-16 DAL1367 - Apr 16, 17:15 UTCApr 16, 18:25 UTC1h 10m
2026-04-16 DAL1367 SMF → SLC Apr 16, 17:08 UTCApr 16, 18:22 UTC1h 14m

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 N369NB page for operator, model, and routing details .

Mode-S A42EE9 frequently asked

What is Mode-S code A42EE9?
A42EE9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N369NB.
Where is Mode-S A42EE9 registered?
Mode-S code A42EE9 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 A42EE9 broadcasting right now?
No active broadcast right now. Last signal was Apr 25, 17:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A42EE9, octal 51027351, decimal 10,759,913.
What flights does A42EE9 operate?
Mode-S A42EE9 has broadcast 20 distinct callsigns, including DAL2568, DAL2529, DAL2551, DAL1367, DAL3118.