Apparatus

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sensors Mode-S transponder

A39017

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N329DN · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A39017
Octal
50710027
Decimal
10,719,255
Country
US
Tail
N329DN
Type
A321
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
589
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S A39017.

Country allocation

The ICAO 24-bit address A39017 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
DAL1458 - 12 2026-07-13
DAL959 - 9 2026-07-09
DAL665 Delta Air Lines 8 2026-05-29
DAL1386 - 8 2026-06-24
DAL759 Delta Air Lines 7 2026-06-02
DAL961 - 6 2026-07-01
DAL414 Delta Air Lines 6 2026-07-23
DAL2104 - 6 2026-07-16
DAL1946 - 6 2026-06-23
DAL1384 - 6 2026-07-12
DAL1352 - 6 2026-07-10
DAL1271 - 6 2026-06-29
DAL893 - 5 2026-07-19
DAL2886 - 5 2026-07-09
DAL2432 Delta Air Lines 5 2026-06-08
DAL2011 - 5 2026-06-26
DAL1709 Delta Air Lines 5 2026-06-04
DAL1587 Delta Air Lines 5 2026-05-08
DAL1527 Delta Air Lines 5 2026-05-27
DAL1329 - 5 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2489 YUL → ATL Jul 26, 20:50 UTCJul 26, 21:35 UTC45m
2026-07-26 DAL2487 DTW → TVC Jul 26, 16:30 UTCJul 26, 19:00 UTC2h 30m
2026-07-26 DAL1330 BDL → MSP Jul 26, 12:00 UTCJul 26, 14:40 UTC2h 40m
2026-07-26 DAL2871 ATL → TLH Jul 26, 01:15 UTCJul 26, 03:20 UTC2h 5m
2026-07-25 DAL2301 MCO → BOS Jul 25, 16:45 UTCJul 25, 19:45 UTC3h 0m
2026-07-25 DAL2301 MCO → BOS Jul 25, 12:30 UTCJul 25, 15:10 UTC2h 40m
2026-07-25 DAL949 MIA → LGA Jul 25, 02:10 UTCJul 25, 04:45 UTC2h 35m
2026-07-24 DAL877 LGA → ATL Jul 24, 20:45 UTCJul 25, 00:15 UTC3h 30m
2026-07-24 DAL877 LGA → ATL Jul 24, 20:44 UTCJul 25, 00:11 UTC3h 27m
2026-07-24 DAL2901 ATL → MSP Jul 24, 17:07 UTCJul 24, 19:26 UTC2h 19m
2026-07-24 DAL2901 ATL → MSP Jul 24, 17:10 UTCJul 24, 19:25 UTC2h 15m
2026-07-24 DAL2365 MSP → SFO Jul 24, 12:40 UTCJul 24, 14:45 UTC2h 5m
2026-07-23 DAL2498 LGA → DTW Jul 23, 22:45 UTCJul 23, 23:45 UTC1h 0m
2026-07-23 DAL2498 LGA → DTW Jul 23, 22:44 UTCJul 24, 00:34 UTC1h 50m
2026-07-23 DAL414 LGA → ATL Jul 23, 19:05 UTCJul 23, 20:45 UTC1h 40m
2026-07-23 DAL414 LGA → ATL Jul 23, 15:55 UTCJul 23, 17:40 UTC1h 45m
2026-07-23 DAL1180 LAS → CVG Jul 23, 12:30 UTCJul 23, 14:05 UTC1h 35m
2026-07-22 DAL2065 ATL → OAJ Jul 22, 23:40 UTCJul 23, 01:15 UTC1h 35m
2026-07-22 DAL638 BOS → ATL Jul 22, 19:30 UTCJul 22, 21:55 UTC2h 25m
2026-07-22 DAL638 BOS → ATL Jul 22, 19:27 UTCJul 22, 21:54 UTC2h 27m
2026-07-22 DAL2655 - Jul 22, 15:20 UTCJul 22, 15:45 UTC25m
2026-07-22 DAL2655 MSP → BOS Jul 22, 15:18 UTCJul 22, 17:31 UTC2h 13m
2026-07-22 DAL949 MIA → LGA Jul 22, 01:20 UTCJul 22, 04:00 UTC2h 40m
2026-07-21 DAL877 LGA → ATL Jul 21, 20:25 UTCJul 21, 23:40 UTC3h 15m
2026-07-21 DAL2901 ATL → MSP Jul 21, 16:25 UTCJul 21, 18:40 UTC2h 15m
2026-07-21 DAL2328 - Jul 21, 13:50 UTCJul 21, 14:35 UTC45m
2026-07-21 DAL2328 - Jul 21, 11:30 UTCJul 21, 12:15 UTC45m
2026-07-21 DAL2294 BOS → LGA Jul 21, 02:40 UTCJul 21, 04:00 UTC1h 20m
2026-07-20 DAL1294 BNA → BOS Jul 20, 22:20 UTCJul 21, 00:55 UTC2h 34m
2026-07-20 DAL1294 BNA → BOS Jul 20, 18:15 UTCJul 20, 20:55 UTC2h 40m
2026-07-20 DAL1748 BOS → DTW Jul 20, 14:35 UTCJul 20, 16:05 UTC1h 30m
2026-07-19 DAL1502 AUS → BOS Jul 19, 23:25 UTCJul 20, 01:40 UTC2h 15m
2026-07-19 DAL1502 AUS → BOS Jul 19, 23:21 UTCJul 20, 01:39 UTC2h 18m
2026-07-19 DAL1127 BOS → MSP Jul 19, 19:15 UTCJul 19, 21:55 UTC2h 40m
2026-07-19 DAL862 ATL → BOS Jul 19, 15:20 UTCJul 19, 17:25 UTC2h 5m
2026-07-19 DAL893 DFW → ATL Jul 19, 12:00 UTCJul 19, 13:40 UTC1h 40m
2026-07-19 DAL893 DFW → ATL Jul 19, 11:56 UTCJul 19, 13:39 UTC1h 43m
2026-07-18 DAL436 ATL → DFW Jul 18, 23:55 UTCJul 19, 01:50 UTC1h 55m
2026-07-18 DAL1046 MSP → ATL Jul 18, 15:52 UTCJul 18, 17:50 UTC1h 58m
2026-07-18 DAL1046 MSP → ATL Jul 18, 15:55 UTCJul 18, 17:55 UTC2h 0m
2026-07-18 DAL1330 - Jul 18, 11:55 UTCJul 18, 14:25 UTC2h 30m
2026-07-18 DAL2871 ATL → TLH Jul 18, 01:50 UTCJul 18, 03:55 UTC2h 6m
2026-07-17 DAL2078 MSO → MSP Jul 17, 20:15 UTCJul 17, 23:25 UTC3h 10m
2026-07-17 DAL2078 MSO → MSP Jul 17, 15:00 UTCJul 17, 18:25 UTC3h 25m
2026-07-17 DAL2303 BOS → MSP Jul 17, 10:10 UTCJul 17, 12:50 UTC2h 40m
2026-07-17 DAL300 ATL → BOS Jul 17, 00:50 UTCJul 17, 02:59 UTC2h 10m
2026-07-16 DAL2104 AUS → ATL Jul 16, 21:08 UTCJul 16, 23:09 UTC2h 1m
2026-07-16 DAL2104 AUS → ATL Jul 16, 21:10 UTCJul 16, 23:20 UTC2h 10m
2026-07-16 DAL2104 ATL → AUS Jul 16, 16:44 UTCJul 16, 18:34 UTC1h 50m
2026-07-16 DAL2777 - Jul 16, 13:45 UTCJul 16, 15:10 UTC1h 25m

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 N329DN page for operator, model, and routing details .

Mode-S A39017 frequently asked

What is Mode-S code A39017?
A39017 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N329DN.
Where is Mode-S A39017 registered?
Mode-S code A39017 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 A39017 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A39017, octal 50710027, decimal 10,719,255.
What flights does A39017 operate?
Mode-S A39017 has broadcast 20 distinct callsigns, including DAL1458, DAL959, DAL665, DAL1386, DAL759.