Apparatus

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sensors Mode-S transponder

AD201E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N945DZ · operated by DELTA AIR LINES INC

Hex
AD201E
Octal
53220036
Decimal
11,345,950
Country
US
Tail
N945DZ
Type
B739
No current signal · last broadcast 2h ago
Flights observed
610
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AD201E.

Country allocation

The ICAO 24-bit address AD201E 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
DAL1470 - 29 2026-07-12
DAL2827 - 20 2026-07-05
DAL1212 - 20 2026-07-09
DAL1067 - 19 2026-07-13
DAL3110 - 18 2026-07-03
DAL3107 - 17 2026-06-26
DAL2547 - 16 2026-07-12
DAL2911 - 14 2026-06-28
DAL1479 Delta Air Lines 14 2026-05-03
DAL3179 - 13 2026-07-13
DAL3013 Delta Air Lines 13 2026-05-04
DAL2026 - 13 2026-07-07
DAL2471 - 12 2026-06-19
DAL1204 - 12 2026-07-12
DAL3100 Delta Air Lines 11 2026-06-05
DAL3091 - 11 2026-07-10
DAL2174 - 11 2026-06-26
DAL1246 Delta Air Lines 11 2026-06-03
DAL3103 - 10 2026-07-05
DAL2747 - 10 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL1351 - Jul 14, 03:55 UTCJul 14, 05:10 UTC1h 15m
2026-07-14 DAL1351 ATL → PIT Jul 14, 03:56 UTCJul 14, 05:07 UTC1h 11m
2026-07-14 DAL3059 - Jul 14, 01:50 UTCJul 14, 02:35 UTC45m
2026-07-14 DAL3059 ATL → PNS Jul 14, 00:05 UTCJul 14, 00:50 UTC45m
2026-07-13 DAL1067 SAV → ATL Jul 13, 20:50 UTCJul 13, 21:55 UTC1h 5m
2026-07-13 DAL1067 ATL → SAV Jul 13, 18:50 UTCJul 13, 19:30 UTC40m
2026-07-13 DAL2952 - Jul 13, 15:55 UTCJul 13, 17:10 UTC1h 15m
2026-07-13 DAL2952 IND → ATL Jul 13, 15:54 UTCJul 13, 17:12 UTC1h 18m
2026-07-13 DAL2952 - Jul 13, 13:30 UTCJul 13, 14:30 UTC1h 0m
2026-07-13 DAL1504 PIT → ATL Jul 13, 09:53 UTCJul 13, 11:09 UTC1h 16m
2026-07-13 DAL1351 ATL → PIT Jul 13, 04:30 UTCJul 13, 05:45 UTC1h 15m
2026-07-13 DAL1351 ATL → PIT Jul 13, 04:31 UTCJul 13, 05:43 UTC1h 12m
2026-07-13 DAL3179 - Jul 13, 01:50 UTCJul 13, 02:45 UTC55m
2026-07-13 DAL3179 CHS → ATL Jul 13, 01:45 UTCJul 13, 02:48 UTC1h 3m
2026-07-12 DAL3179 - Jul 12, 23:35 UTCJul 13, 00:15 UTC40m
2026-07-12 DAL2547 - Jul 12, 20:25 UTCJul 12, 21:55 UTC1h 30m
2026-07-12 DAL2547 ATL → GRR Jul 12, 14:01 UTCJul 12, 15:25 UTC1h 25m
2026-07-12 DAL1204 - Jul 12, 10:55 UTCJul 12, 12:25 UTC1h 30m
2026-07-12 DAL1470 - Jul 12, 02:25 UTCJul 12, 04:05 UTC1h 40m
2026-07-11 DAL2747 - Jul 11, 23:15 UTCJul 12, 00:10 UTC55m
2026-07-11 DAL2747 - Jul 11, 18:25 UTCJul 11, 20:10 UTC1h 45m
2026-07-11 DAL2747 - Jul 11, 15:20 UTCJul 11, 16:55 UTC1h 35m
2026-07-11 DAL1504 - Jul 11, 12:15 UTCJul 11, 13:30 UTC1h 15m
2026-07-11 DAL1351 - Jul 11, 04:40 UTCJul 11, 06:01 UTC1h 20m
2026-07-11 DAL1351 ATL → PIT Jul 11, 04:40 UTCJul 11, 05:51 UTC1h 11m
2026-07-11 DAL3059 - Jul 11, 01:45 UTCJul 11, 02:35 UTC50m
2026-07-10 DAL3059 ATL → PNS Jul 10, 23:55 UTCJul 11, 00:45 UTC50m
2026-07-10 DAL1067 SAV → ATL Jul 10, 20:03 UTCJul 10, 20:45 UTC42m
2026-07-10 DAL1067 SAV → ATL Jul 10, 20:05 UTCJul 10, 20:50 UTC45m
2026-07-10 DAL1067 ATL → SAV Jul 10, 17:45 UTCJul 10, 18:30 UTC45m
2026-07-10 DAL3091 - Jul 10, 15:30 UTCJul 10, 16:15 UTC45m
2026-07-10 DAL3091 - Jul 10, 13:10 UTCJul 10, 13:55 UTC45m
2026-07-10 DAL3154 - Jul 10, 10:15 UTCJul 10, 11:05 UTC50m
2026-07-10 DAL2810 - Jul 10, 03:55 UTCJul 10, 04:50 UTC55m
2026-07-10 DAL3179 - Jul 10, 00:30 UTCJul 10, 01:15 UTC45m
2026-07-09 DAL3179 - Jul 9, 22:35 UTCJul 9, 23:20 UTC45m
2026-07-09 DAL1488 - Jul 9, 18:00 UTCJul 9, 18:50 UTC50m
2026-07-09 DAL1488 - Jul 9, 15:30 UTCJul 9, 16:30 UTC1h 0m
2026-07-09 DAL1212 - Jul 9, 12:15 UTCJul 9, 13:55 UTC1h 40m
2026-07-08 DAL1470 - Jul 8, 22:15 UTCJul 8, 23:55 UTC1h 40m
2026-07-08 DAL1470 ATL → MCI Jul 8, 22:13 UTCJul 8, 23:59 UTC1h 46m
2026-07-08 DAL1067 - Jul 8, 20:00 UTCJul 8, 20:40 UTC40m
2026-07-08 DAL1067 ATL → SAV Jul 8, 17:40 UTCJul 8, 18:25 UTC45m
2026-07-08 DAL3091 - Jul 8, 15:30 UTCJul 8, 16:10 UTC40m
2026-07-08 DAL3091 - Jul 8, 13:15 UTCJul 8, 13:55 UTC40m
2026-07-08 DAL1504 - Jul 8, 09:50 UTCJul 8, 11:05 UTC1h 15m
2026-07-07 DAL3122 - Jul 7, 22:55 UTCJul 8, 00:05 UTC1h 10m
2026-07-07 DAL3122 ATL → PIT Jul 7, 22:52 UTCJul 8, 00:03 UTC1h 11m
2026-07-07 DAL2026 - Jul 7, 20:00 UTCJul 7, 20:55 UTC55m
2026-07-07 DAL2026 ATL → RDU Jul 7, 17:15 UTCJul 7, 18:15 UTC1h 0m

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 N945DZ page for operator, model, and routing details .

Mode-S AD201E frequently asked

What is Mode-S code AD201E?
AD201E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N945DZ.
Where is Mode-S AD201E registered?
Mode-S code AD201E 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 AD201E 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 AD201E, octal 53220036, decimal 11,345,950.
What flights does AD201E operate?
Mode-S AD201E has broadcast 20 distinct callsigns, including DAL1470, DAL2827, DAL1212, DAL1067, DAL3110.