Apparatus

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sensors Mode-S transponder

A017A5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N105DU · AIRBUS A220-100 · operated by BANK OF UTAH TRUSTEE

Hex
A017A5
Octal
50013645
Decimal
10,491,813
Country
US
Tail
N105DU
Type
BCS1
Broadcasting now · callsign DAL2574 · 13,600 ft
Flights observed
511
Distinct callsigns
20
Country
US
Last broadcast
51m ago

Current position

A017A5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A017A5 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
DAL2920 - 10 2026-06-26
DAL2185 Delta Air Lines 9 2026-05-09
DAL1553 - 9 2026-07-08
DAL2667 - 8 2026-07-03
DAL2550 Delta Air Lines 8 2026-06-12
DAL1503 - 8 2026-07-09
DAL930 - 7 2026-07-03
DAL2972 Delta Air Lines 7 2026-06-21
DAL2414 - 7 2026-07-13
DAL1198 Delta Air Lines 7 2026-06-17
DAL870 Delta Air Lines 6 2026-04-21
DAL454 Delta Air Lines 6 2026-06-19
DAL2983 Delta Air Lines 6 2026-05-23
DAL2251 Delta Air Lines 6 2026-04-28
DAL2099 Delta Air Lines 6 2026-04-15
DAL1533 Delta Air Lines 6 2026-05-25
DAL1342 - 6 2026-07-04
DAL1260 - 6 2026-06-27
DAL8961 - 5 2026-07-06
DAL8783 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2574 - Jul 14, 18:00 UTCJul 14, 19:15 UTC1h 15m
2026-07-14 DAL2847 - Jul 14, 14:55 UTCJul 14, 16:20 UTC1h 25m
2026-07-14 DAL2847 CLE → MSP Jul 14, 14:53 UTCJul 14, 16:19 UTC1h 26m
2026-07-14 DAL2847 MSP → CLE Jul 14, 12:15 UTCJul 14, 13:40 UTC1h 25m
2026-07-13 DAL2285 - Jul 13, 23:20 UTCJul 14, 01:40 UTC2h 20m
2026-07-13 DAL2285 - Jul 13, 19:55 UTCJul 13, 22:15 UTC2h 20m
2026-07-13 DAL2414 JFK → MSP Jul 13, 16:00 UTCJul 13, 18:20 UTC2h 20m
2026-07-12 DAL2969 MSP → JFK Jul 12, 12:16 UTCJul 12, 14:32 UTC2h 16m
2026-07-12 DAL2969 MSP → JFK Jul 12, 12:20 UTCJul 12, 14:35 UTC2h 15m
2026-07-12 DAL8783 - Jul 12, 01:55 UTCJul 12, 02:05 UTC10m
2026-07-11 DAL8783 - Jul 11, 23:50 UTCJul 12, 02:05 UTC2h 15m
2026-07-11 DAL8783 PHL → MSP Jul 11, 23:46 UTCJul 12, 01:40 UTC1h 54m
2026-07-11 DAL8783 PHL → PHL Jul 11, 23:35 UTCJul 11, 23:40 UTC5m
2026-07-11 DAL8783 MSP → PHL Jul 11, 19:40 UTCJul 11, 21:45 UTC2h 5m
2026-07-11 DAL1827 - Jul 11, 16:10 UTCJul 11, 18:20 UTC2h 10m
2026-07-11 DAL1827 CLT → MSP Jul 11, 16:09 UTCJul 11, 18:20 UTC2h 11m
2026-07-11 DAL1827 - Jul 11, 12:40 UTCJul 11, 14:45 UTC2h 5m
2026-07-09 DAL2528 - Jul 9, 19:30 UTCJul 9, 21:50 UTC2h 20m
2026-07-09 DAL2528 SAT → MSP Jul 9, 19:27 UTCJul 9, 21:47 UTC2h 20m
2026-07-09 DAL3123 - Jul 9, 16:00 UTCJul 9, 18:15 UTC2h 15m
2026-07-09 DAL3123 SLC → SAT Jul 9, 15:56 UTCJul 9, 18:09 UTC2h 13m
2026-07-09 DAL1503 - Jul 9, 00:25 UTCJul 9, 01:45 UTC1h 20m
2026-07-08 DAL1503 SLC → GEG Jul 8, 21:55 UTCJul 8, 23:20 UTC1h 25m
2026-07-08 DAL1553 DEN → SLC Jul 8, 19:00 UTCJul 8, 20:05 UTC1h 5m
2026-07-08 DAL1553 DEN → SLC Jul 8, 18:58 UTCJul 8, 20:01 UTC1h 3m
2026-07-08 DAL1553 - Jul 8, 16:25 UTCJul 8, 17:30 UTC1h 5m
2026-07-08 DAL2716 - Jul 8, 12:15 UTCJul 8, 15:05 UTC2h 50m
2026-07-08 DAL2619 SLC → MKE Jul 8, 00:30 UTCJul 8, 03:05 UTC2h 35m
2026-07-07 DAL1532 - Jul 7, 19:30 UTCJul 7, 22:05 UTC2h 35m
2026-07-07 DAL2502 ATL → BNA Jul 7, 15:35 UTCJul 7, 18:25 UTC2h 50m
2026-07-07 DAL1526 ATL → DTW Jul 7, 12:45 UTCJul 7, 14:00 UTC1h 15m
2026-07-07 DAL1582 SLC → SMF Jul 7, 05:15 UTCJul 7, 06:35 UTC1h 20m
2026-07-07 DAL1024 GEG → SLC Jul 7, 02:10 UTCJul 7, 03:30 UTC1h 20m
2026-07-06 DAL1024 SLC → GEG Jul 6, 23:40 UTCJul 7, 00:50 UTC1h 10m
2026-07-06 DAL1532 - Jul 6, 19:40 UTCJul 6, 22:25 UTC2h 45m
2026-07-06 DAL2502 ATL → BNA Jul 6, 15:32 UTCJul 6, 18:01 UTC2h 29m
2026-07-06 DAL2502 ATL → BNA Jul 6, 15:35 UTCJul 6, 18:05 UTC2h 30m
2026-07-06 DAL8961 - Jul 6, 05:40 UTCJul 6, 07:05 UTC1h 25m
2026-07-06 DAL8961 LAX → SLC Jul 6, 05:37 UTCJul 6, 07:01 UTC1h 24m
2026-07-06 DAL8961 - Jul 6, 03:45 UTCJul 6, 04:30 UTC45m
2026-07-05 DAL8961 SLC → LAS Jul 5, 23:28 UTCJul 6, 00:28 UTC1h 0m
2026-07-05 DAL8961 SLC → LAS Jul 5, 23:30 UTCJul 6, 00:30 UTC1h 0m
2026-07-05 DAL3172 ATL → MDT Jul 5, 20:10 UTCJul 5, 21:25 UTC1h 15m
2026-07-05 DAL3172 ATL → MDT Jul 5, 17:45 UTCJul 5, 19:05 UTC1h 20m
2026-07-05 DAL1738 PHX → SLC Jul 5, 00:25 UTCJul 5, 01:40 UTC1h 15m
2026-07-04 DAL1738 SLC → PHX Jul 4, 21:15 UTCJul 4, 22:25 UTC1h 10m
2026-07-04 DAL2582 BUR → SLC Jul 4, 14:10 UTCJul 4, 15:35 UTC1h 25m
2026-07-04 DAL2582 BUR → SLC Jul 4, 14:06 UTCJul 4, 15:29 UTC1h 23m
2026-07-04 DAL339 SLC → BUR Jul 4, 03:00 UTCJul 4, 04:30 UTC1h 30m
2026-07-04 DAL1342 SMF → SLC Jul 4, 00:05 UTCJul 4, 01:20 UTC1h 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 N105DU page for operator, model, and routing details .

Mode-S A017A5 frequently asked

What is Mode-S code A017A5?
A017A5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N105DU.
Where is Mode-S A017A5 registered?
Mode-S code A017A5 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 A017A5 broadcasting right now?
Yes. Mode-S A017A5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A017A5, octal 50013645, decimal 10,491,813.
What flights does A017A5 operate?
Mode-S A017A5 has broadcast 20 distinct callsigns, including DAL2920, DAL2185, DAL1553, DAL2667, DAL2550.