Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4E35F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N414DZ · AIRBUS A-330-900 · operated by DELTA AIR LINES INC

Hex
A4E35F
Octal
51161537
Decimal
10,806,111
Country
US
Tail
N414DZ
Type
A339
No current signal · last broadcast 1h ago
Flights observed
109
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A4E35F.

Country allocation

The ICAO 24-bit address A4E35F 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
DAL57 Delta Air Lines 6 2026-05-19
DAL81 Delta Air Lines 5 2026-05-16
DAL125 Delta Air Lines 5 2026-05-24
DAL242 Delta Air Lines 4 2026-05-27
DAL225 Delta Air Lines 4 2026-05-23
DAL165 Delta Air Lines 4 2026-05-08
DAL164 Delta Air Lines 4 2026-05-15
DAL80 Delta Air Lines 3 2026-05-16
DAL71 Delta Air Lines 3 2026-05-21
DAL297 Delta Air Lines 3 2026-05-26
DAL257 Delta Air Lines 3 2026-04-30
DAL220 Delta Air Lines 3 2026-05-19
DAL20 Delta Air Lines 3 2026-05-17
DAL144 Delta Air Lines 3 2026-05-30
DAL124 Delta Air Lines 3 2026-05-24
DAL70 Delta Air Lines 2 2026-05-04
DAL63 Delta Air Lines 2 2026-05-27
DAL62 Delta Air Lines 2 2026-05-25
DAL48 Delta Air Lines 2 2026-04-29
DAL43 Delta Air Lines 2 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 DAL144 SEA → AMS May 30, 01:00 UTCMay 30, 09:45 UTC8h 45m
2026-05-29 DAL249 TLV → ATL May 29, 11:45 UTCMay 29, 13:45 UTC2h 0m
2026-05-29 DAL249 TLV → ATL May 29, 11:43 UTCMay 29, 22:19 UTC10h 36m
2026-05-28 DAL248 ATL → TLV May 28, 22:45 UTCMay 29, 09:05 UTC10h 20m
2026-05-28 DAL248 ATL → TLV May 28, 22:42 UTCMay 29, 08:55 UTC10h 13m
2026-05-28 DAL143 FRA → DTW May 28, 08:40 UTCMay 28, 18:15 UTC9h 35m
2026-05-27 DAL242 BOS → TLV May 27, 23:12 UTCMay 28, 06:01 UTC6h 49m
2026-05-27 DAL242 BOS → TLV May 27, 23:15 UTCMay 28, 05:45 UTC6h 30m
2026-05-27 DAL63 FCO → ATL May 27, 12:55 UTCMay 27, 14:05 UTC1h 10m
2026-05-27 DAL63 FCO → ATL May 27, 12:51 UTCMay 27, 19:38 UTC6h 47m
2026-05-27 DAL108 ATL → MAD May 27, 02:34 UTCMay 27, 10:25 UTC7h 50m
2026-05-26 DAL297 SPN → NRT May 26, 09:48 UTCMay 26, 20:54 UTC11h 6m
2026-05-26 DAL297 SPN → NRT May 26, 09:48 UTCMay 26, 21:04 UTC11h 16m
2026-05-26 DAL297 SPN → NRT May 26, 09:49 UTCMay 26, 13:45 UTC3h 55m
2026-05-25 DAL296 HND → ATL May 25, 20:40 UTCMay 26, 05:45 UTC9h 5m
2026-05-25 DAL296 HND → ATL May 25, 20:35 UTCMay 26, 07:20 UTC10h 45m
2026-05-25 DAL109 MAD → ATL May 25, 08:20 UTCMay 25, 17:15 UTC8h 55m
2026-05-25 DAL62 ATL → FCO May 25, 03:00 UTCMay 25, 04:15 UTC1h 15m
2026-05-24 DAL62 ATL → FCO May 24, 21:45 UTCMay 25, 04:07 UTC6h 22m
2026-05-24 DAL125 LIS → BOS May 24, 12:23 UTCMay 24, 19:03 UTC6h 40m
2026-05-24 DAL125 LIS → BOS May 24, 12:25 UTCMay 24, 19:05 UTC6h 40m
2026-05-24 DAL124 BOS → LIS May 24, 03:35 UTCMay 24, 04:10 UTC35m
2026-05-24 DAL124 BOS → LIS May 24, 03:34 UTCMay 24, 09:21 UTC5h 47m
2026-05-23 DAL225 CDG → BOS May 23, 10:05 UTCMay 23, 17:10 UTC7h 5m
2026-05-22 DAL224 SEA → AMS May 22, 23:25 UTCMay 23, 05:20 UTC5h 55m
2026-05-22 DAL224 SEA → AMS May 22, 23:25 UTCMay 22, 23:45 UTC20m
2026-05-22 DAL241 ATH → BOS May 22, 10:27 UTCMay 22, 19:55 UTC9h 28m
2026-05-22 DAL241 ATH → BOS May 22, 10:30 UTCMay 22, 11:45 UTC1h 15m
2026-05-21 DAL222 ATL → ATH May 21, 21:35 UTCMay 22, 07:40 UTC10h 5m
2026-05-21 DAL71 AMS → ATL May 21, 07:35 UTCMay 21, 16:45 UTC9h 10m
2026-05-21 DAL71 AMS → ATL May 21, 07:32 UTCMay 21, 16:38 UTC9h 6m
2026-05-20 DAL256 BOS → AMS May 20, 21:15 UTCMay 21, 03:25 UTC6h 10m
2026-05-20 DAL225 CDG → BOS May 20, 10:00 UTCMay 20, 17:15 UTC7h 15m
2026-05-20 DAL225 CDG → BOS May 20, 09:59 UTCMay 20, 17:14 UTC7h 15m
2026-05-19 DAL220 SLC → CDG May 19, 21:45 UTCMay 20, 06:50 UTC9h 6m
2026-05-19 DAL220 SLC → CDG May 19, 21:45 UTCMay 20, 06:44 UTC8h 59m
2026-05-19 DAL57 AMS → SLC May 19, 18:50 UTCMay 19, 18:55 UTC5m
2026-05-19 DAL57 AMS → SLC May 19, 09:05 UTCMay 19, 18:33 UTC9h 28m
2026-05-19 DAL57 AMS → SLC May 19, 09:05 UTCMay 19, 18:45 UTC9h 40m
2026-05-19 DAL57 AMS → SLC May 19, 09:05 UTCMay 19, 09:45 UTC40m
2026-05-18 DAL142 SEA → AMS May 18, 21:10 UTCMay 19, 06:30 UTC9h 20m
2026-05-17 DAL21 LHR → SEA May 17, 18:05 UTCMay 18, 03:15 UTC9h 10m
2026-05-17 DAL20 SEA → LHR May 17, 04:55 UTCMay 17, 13:55 UTC9h 0m
2026-05-17 DAL20 SEA → LHR May 17, 04:55 UTCMay 17, 13:49 UTC8h 54m
2026-05-16 DAL81 CDG → SEA May 16, 14:46 UTCMay 16, 15:45 UTC1h 0m
2026-05-16 DAL81 CDG → SEA May 16, 14:41 UTCMay 16, 23:59 UTC9h 18m
2026-05-16 DAL80 SEA → CDG May 16, 02:20 UTCMay 16, 04:10 UTC1h 50m
2026-05-16 DAL80 SEA → CDG May 16, 02:18 UTCMay 16, 11:25 UTC9h 7m
2026-05-15 DAL145 AMS → SEA May 15, 14:05 UTCMay 15, 23:30 UTC9h 24m
2026-05-15 DAL164 MSP → AMS May 15, 02:55 UTCMay 15, 10:50 UTC7h 55m

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 N414DZ page for operator, model, and routing details .

Mode-S A4E35F frequently asked

What is Mode-S code A4E35F?
A4E35F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N414DZ.
Where is Mode-S A4E35F registered?
Mode-S code A4E35F 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 A4E35F broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4E35F, octal 51161537, decimal 10,806,111.
What flights does A4E35F operate?
Mode-S A4E35F has broadcast 20 distinct callsigns, including DAL57, DAL81, DAL125, DAL242, DAL225.