Apparatus

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sensors Mode-S transponder

A4E714

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N415DX · AIRBUS A-330-900 · operated by DELTA AIR LINES INC

Hex
A4E714
Octal
51163424
Decimal
10,807,060
Country
US
Tail
N415DX
Type
A339
No current signal · last broadcast Jul 26, 18:35 UTC
Flights observed
296
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:35 UTC

Last known position

Most recent position reported by Mode-S A4E714.

Country allocation

The ICAO 24-bit address A4E714 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
DAL215 Delta Air Lines 12 2026-07-26
DAL214 Delta Air Lines 11 2026-07-25
DAL243 Delta Air Lines 10 2026-07-22
DAL21 - 9 2026-07-06
DAL67 - 8 2026-07-13
DAL257 Delta Air Lines 8 2026-05-23
DAL241 Delta Air Lines 8 2026-06-09
DAL17 Delta Air Lines 8 2026-05-25
DAL144 - 8 2026-07-04
DAL110 - 8 2026-07-18
DAL242 Delta Air Lines 7 2026-07-22
DAL222 Delta Air Lines 7 2026-06-08
DAL143 Delta Air Lines 7 2026-06-12
DAL10 - 7 2026-07-05
DAL66 - 6 2026-07-13
DAL42 Delta Air Lines 6 2026-06-17
DAL297 Delta Air Lines 6 2026-07-24
DAL296 Delta Air Lines 6 2026-07-23
DAL256 Delta Air Lines 6 2026-05-13
DAL16 Delta Air Lines 6 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL215 FCO → ATL Jul 26, 08:35 UTCJul 26, 18:25 UTC9h 50m
2026-07-25 DAL214 ATL → FCO Jul 25, 20:28 UTCJul 26, 05:29 UTC9h 1m
2026-07-25 DAL214 ATL → FCO Jul 25, 20:30 UTCJul 26, 05:45 UTC9h 15m
2026-07-24 DAL297 SPN → NRT Jul 24, 09:32 UTCJul 24, 20:55 UTC11h 23m
2026-07-24 DAL297 SPN → NRT Jul 24, 09:35 UTCJul 24, 20:50 UTC11h 15m
2026-07-23 DAL296 HND → ATL Jul 23, 20:45 UTCJul 24, 06:35 UTC9h 50m
2026-07-23 DAL109 MAD → ATL Jul 23, 08:15 UTCJul 23, 16:55 UTC8h 40m
2026-07-22 DAL62 ATL → FCO Jul 22, 22:00 UTCJul 23, 04:35 UTC6h 35m
2026-07-22 DAL243 TLV → BOS Jul 22, 11:35 UTCJul 22, 18:20 UTC6h 45m
2026-07-22 DAL242 BOS → TLV Jul 22, 02:05 UTCJul 22, 08:33 UTC6h 28m
2026-07-22 DAL242 BOS → TLV Jul 22, 02:10 UTCJul 22, 03:00 UTC50m
2026-07-21 DAL63 FCO → ATL Jul 21, 13:10 UTCJul 21, 14:25 UTC1h 15m
2026-07-21 DAL63 FCO → ATL Jul 21, 13:05 UTCJul 21, 19:53 UTC6h 48m
2026-07-21 DAL108 ATL → MAD Jul 21, 02:00 UTCJul 21, 05:00 UTC3h 0m
2026-07-21 DAL108 ATL → MAD Jul 21, 01:56 UTCJul 21, 10:07 UTC8h 11m
2026-07-20 DAL297 ATH → ATL Jul 20, 09:50 UTCJul 20, 21:10 UTC11h 20m
2026-07-19 DAL296 ATL → ATH Jul 19, 20:40 UTCJul 20, 07:00 UTC10h 20m
2026-07-18 DAL110 EZE → ATL Jul 18, 23:17 UTCJul 19, 09:02 UTC9h 45m
2026-07-18 DAL110 - Jul 18, 23:20 UTCJul 19, 09:05 UTC9h 45m
2026-07-18 DAL101 ATL → EZE Jul 18, 03:40 UTCJul 18, 13:05 UTC9h 25m
2026-07-17 DAL215 - Jul 17, 18:40 UTCJul 17, 18:44 UTC5m
2026-07-17 DAL215 - Jul 17, 08:15 UTCJul 17, 11:15 UTC3h 0m
2026-07-17 DAL215 FCO → ATL Jul 17, 08:14 UTCJul 17, 18:20 UTC10h 6m
2026-07-17 DAL215 FCO → ATL Jul 17, 08:14 UTCJul 17, 18:45 UTC10h 31m
2026-07-16 DAL214 ATL → FCO Jul 16, 20:15 UTCJul 17, 05:15 UTC9h 0m
2026-07-15 DAL110 - Jul 15, 23:15 UTCJul 16, 09:05 UTC9h 50m
2026-07-15 DAL101 ATL → EZE Jul 15, 03:20 UTCJul 15, 12:55 UTC9h 35m
2026-07-13 DAL67 - Jul 13, 14:35 UTCJul 13, 17:00 UTC2h 25m
2026-07-13 DAL67 FCO → ATL Jul 13, 14:34 UTCJul 14, 00:39 UTC10h 5m
2026-07-13 DAL66 - Jul 13, 02:55 UTCJul 13, 05:01 UTC2h 5m
2026-07-13 DAL66 ATL → FCO Jul 13, 02:54 UTCJul 13, 12:07 UTC9h 13m
2026-07-12 DAL67 - Jul 12, 12:01 UTCJul 12, 22:10 UTC10h 10m
2026-07-12 DAL66 - Jul 12, 00:01 UTCJul 12, 02:55 UTC2h 55m
2026-07-12 DAL66 ATL → FCO Jul 12, 00:01 UTCJul 12, 09:11 UTC9h 10m
2026-07-11 DAL215 - Jul 11, 20:50 UTCJul 11, 21:10 UTC20m
2026-07-11 DAL215 - Jul 11, 10:20 UTCJul 11, 13:05 UTC2h 45m
2026-07-11 DAL215 FCO → ATL Jul 11, 10:17 UTCJul 11, 20:31 UTC10h 14m
2026-07-10 DAL214 ATL → FCO Jul 10, 20:49 UTCJul 11, 05:56 UTC9h 7m
2026-07-10 DAL214 - Jul 10, 20:50 UTCJul 10, 23:50 UTC3h 0m
2026-07-08 DAL195 BCN → ATL Jul 8, 12:05 UTCJul 8, 21:08 UTC9h 3m
2026-07-08 DAL195 - Jul 8, 12:05 UTCJul 8, 13:00 UTC55m
2026-07-07 DAL248 SEA → BCN Jul 7, 23:00 UTCJul 8, 09:15 UTC10h 15m
2026-07-07 DAL248 SEA → BCN Jul 7, 22:56 UTCJul 8, 09:15 UTC10h 19m
2026-07-06 DAL21 - Jul 6, 17:10 UTCJul 7, 02:50 UTC9h 40m
2026-07-06 DAL20 SEA → LHR Jul 6, 14:20 UTCJul 6, 14:40 UTC20m
2026-07-06 DAL20 SEA → LHR Jul 6, 05:45 UTCJul 6, 14:15 UTC8h 30m
2026-07-05 DAL21 - Jul 5, 18:00 UTCJul 5, 19:00 UTC1h 0m
2026-07-05 DAL21 LHR → SEA Jul 5, 17:58 UTCJul 6, 03:24 UTC9h 26m
2026-07-05 DAL21 LHR → SEA Jul 5, 17:58 UTCJul 6, 03:30 UTC9h 32m
2026-07-05 DAL10 MSP → LHR Jul 5, 04:20 UTCJul 5, 11:40 UTC7h 20m

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 N415DX page for operator, model, and routing details .

Mode-S A4E714 frequently asked

What is Mode-S code A4E714?
A4E714 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N415DX.
Where is Mode-S A4E714 registered?
Mode-S code A4E714 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 A4E714 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4E714, octal 51163424, decimal 10,807,060.
What flights does A4E714 operate?
Mode-S A4E714 has broadcast 20 distinct callsigns, including DAL215, DAL214, DAL243, DAL21, DAL67.