Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A50370

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N422DZ · AIRBUS A-330-900 · operated by DELTA AIR LINES INC

Hex
A50370
Octal
51201560
Decimal
10,814,320
Country
US
Tail
N422DZ
Type
A339
No current signal · last broadcast 3h ago
Flights observed
262
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A50370.

Country allocation

The ICAO 24-bit address A50370 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
DAL157 Delta Air Lines 11 2026-05-12
DAL67 Delta Air Lines 10 2026-07-07
DAL273 Delta Air Lines 10 2026-05-07
DAL20 - 9 2026-07-12
DAL143 - 9 2026-06-15
DAL297 Delta Air Lines 8 2026-06-20
DAL227 Delta Air Lines 8 2026-05-10
DAL156 Delta Air Lines 8 2026-05-11
DAL272 Delta Air Lines 7 2026-05-07
DAL56 - 6 2026-07-03
DAL226 Delta Air Lines 6 2026-05-10
DAL21 - 6 2026-07-11
DAL57 Delta Air Lines 5 2026-04-14
DAL42 - 5 2026-07-06
DAL296 Delta Air Lines 5 2026-06-19
DAL224 - 5 2026-07-03
DAL66 - 4 2026-06-21
DAL256 - 4 2026-06-14
DAL221 - 4 2026-07-03
DAL220 Delta Air Lines 4 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL972 LAX → JFK Jul 13, 18:35 UTCJul 13, 23:35 UTC5h 0m
2026-07-13 DAL742 JFK → LAX Jul 13, 11:25 UTCJul 13, 16:30 UTC5h 5m
2026-07-12 DAL4 - Jul 12, 17:40 UTCJul 13, 00:30 UTC6h 50m
2026-07-12 DAL20 SEA → LHR Jul 12, 05:35 UTCJul 12, 14:25 UTC8h 50m
2026-07-11 DAL21 - Jul 11, 17:20 UTCJul 11, 23:40 UTC6h 20m
2026-07-11 DAL21 LHR → SEA Jul 11, 17:16 UTCJul 12, 02:59 UTC9h 43m
2026-07-11 DAL20 - Jul 11, 05:05 UTCJul 11, 14:00 UTC8h 55m
2026-07-11 DAL20 SEA → LHR Jul 11, 05:01 UTCJul 11, 13:46 UTC8h 45m
2026-07-10 DAL21 LHR → SEA Jul 10, 17:15 UTCJul 11, 02:50 UTC9h 35m
2026-07-10 DAL20 SEA → LHR Jul 10, 05:10 UTCJul 10, 14:05 UTC8h 55m
2026-07-09 DAL81 - Jul 9, 15:20 UTCJul 10, 01:00 UTC9h 40m
2026-07-09 DAL84 - Jul 9, 04:50 UTCJul 9, 12:50 UTC8h 0m
2026-07-08 DAL85 - Jul 8, 17:35 UTCJul 8, 19:20 UTC1h 45m
2026-07-08 DAL85 CDG → ATL Jul 8, 17:33 UTCJul 9, 02:23 UTC8h 50m
2026-07-08 DAL84 ATL → CDG Jul 8, 06:40 UTCJul 8, 14:38 UTC7h 58m
2026-07-08 DAL84 - Jul 8, 06:40 UTCJul 8, 14:45 UTC8h 5m
2026-07-07 DAL67 FCO → ATL Jul 7, 11:26 UTCJul 7, 21:16 UTC9h 50m
2026-07-07 DAL67 FCO → ATL Jul 7, 11:30 UTCJul 7, 21:20 UTC9h 50m
2026-07-06 DAL42 - Jul 6, 22:45 UTCJul 7, 00:00 UTC1h 15m
2026-07-06 DAL42 SEA → FCO Jul 6, 22:41 UTCJul 7, 09:09 UTC10h 28m
2026-07-06 DAL9889 AMS → SEA Jul 6, 10:30 UTCJul 6, 20:10 UTC9h 40m
2026-07-06 DAL9889 AMS → SEA Jul 6, 10:25 UTCJul 6, 20:05 UTC9h 40m
2026-07-04 DAL242 BOS → AMS Jul 4, 23:51 UTCJul 5, 06:04 UTC6h 13m
2026-07-04 DAL242 - Jul 4, 23:55 UTCJul 5, 01:00 UTC1h 5m
2026-07-04 DAL257 AMS → BOS Jul 4, 13:00 UTCJul 4, 20:25 UTC7h 25m
2026-07-03 DAL56 - Jul 3, 22:55 UTCJul 4, 01:10 UTC2h 15m
2026-07-03 DAL56 SLC → AMS Jul 3, 22:53 UTCJul 4, 07:53 UTC9h 0m
2026-07-03 DAL221 - Jul 3, 09:35 UTCJul 3, 20:05 UTC10h 30m
2026-07-03 DAL221 CDG → SLC Jul 3, 09:34 UTCJul 3, 20:01 UTC10h 27m
2026-07-03 DAL224 - Jul 3, 00:05 UTCJul 3, 06:10 UTC6h 5m
2026-07-02 DAL257 AMS → BOS Jul 2, 13:18 UTCJul 2, 20:44 UTC7h 26m
2026-07-02 DAL257 - Jul 2, 13:20 UTCJul 2, 20:45 UTC7h 25m
2026-07-02 DAL136 - Jul 2, 03:50 UTCJul 2, 10:40 UTC6h 50m
2026-07-01 DAL137 AMS → DTW Jul 1, 13:15 UTCJul 1, 21:35 UTC8h 20m
2026-07-01 DAL136 - Jul 1, 02:35 UTCJul 1, 09:35 UTC7h 0m
2026-06-30 DAL135 AMS → DTW Jun 30, 16:35 UTCJun 30, 18:25 UTC1h 50m
2026-06-30 DAL135 AMS → DTW Jun 30, 10:35 UTCJun 30, 16:30 UTC5h 55m
2026-06-30 DAL134 - Jun 30, 00:35 UTCJun 30, 07:50 UTC7h 16m
2026-06-29 DAL137 AMS → DTW Jun 29, 13:24 UTCJun 29, 21:14 UTC7h 50m
2026-06-29 DAL136 - Jun 29, 02:45 UTCJun 29, 10:00 UTC7h 15m
2026-06-29 DAL136 DTW → AMS Jun 29, 02:40 UTCJun 29, 09:55 UTC7h 15m
2026-06-28 DAL137 AMS → DTW Jun 28, 12:50 UTCJun 28, 13:59 UTC1h 10m
2026-06-28 DAL137 AMS → DTW Jun 28, 12:49 UTCJun 28, 20:28 UTC7h 39m
2026-06-28 DAL48 JFK → AMS Jun 28, 03:08 UTCJun 28, 09:35 UTC6h 27m
2026-06-28 DAL48 - Jun 28, 03:09 UTCJun 28, 04:10 UTC1h 0m
2026-06-27 DAL4 - Jun 27, 15:39 UTCJun 27, 22:45 UTC7h 5m
2026-06-27 DAL4 LHR → JFK Jun 27, 15:37 UTCJun 27, 22:37 UTC7h 0m
2026-06-27 DAL10 - Jun 27, 04:19 UTCJun 27, 07:15 UTC2h 55m
2026-06-27 DAL10 MSP → LHR Jun 27, 04:18 UTCJun 27, 11:40 UTC7h 22m
2026-06-26 DAL165 AMS → MSP Jun 26, 12:59 UTCJun 26, 21:15 UTC8h 15m

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 N422DZ page for operator, model, and routing details .

Mode-S A50370 frequently asked

What is Mode-S code A50370?
A50370 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N422DZ.
Where is Mode-S A50370 registered?
Mode-S code A50370 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 A50370 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A50370, octal 51201560, decimal 10,814,320.
What flights does A50370 operate?
Mode-S A50370 has broadcast 20 distinct callsigns, including DAL157, DAL67, DAL273, DAL20, DAL143.