Apparatus

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sensors Mode-S transponder

ACD4D7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N926DZ · BOEING 737-900 · operated by BANK OF UTAH TRUSTEE

Hex
ACD4D7
Octal
53152327
Decimal
11,326,679
Country
US
Tail
N926DZ
Type
B739
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
506
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S ACD4D7.

Country allocation

The ICAO 24-bit address ACD4D7 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
DAL2236 - 6 2026-06-21
DAL1244 - 6 2026-07-01
DAL935 - 5 2026-06-30
DAL765 Delta Air Lines 5 2026-05-05
DAL3128 - 5 2026-07-02
DAL2843 - 5 2026-07-01
DAL2735 - 5 2026-06-12
DAL1421 Delta Air Lines 5 2026-05-21
DAL1224 Delta Air Lines 5 2026-05-03
DAL897 Delta Air Lines 4 2026-05-01
DAL627 Delta Air Lines 4 2026-04-13
DAL2933 Delta Air Lines 4 2026-06-06
DAL2916 - 4 2026-07-16
DAL2755 Delta Air Lines 4 2026-06-05
DAL2206 - 4 2026-06-27
DAL2161 Delta Air Lines 4 2026-06-26
DAL2121 Delta Air Lines 4 2026-06-01
DAL1757 - 4 2026-07-07
DAL1715 Delta Air Lines 4 2026-05-21
DAL1466 - 4 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL469 DTW → SFO Jul 26, 16:55 UTCJul 26, 21:30 UTC4h 35m
2026-07-26 DAL2439 BNA → DTW Jul 26, 11:15 UTCJul 26, 12:25 UTC1h 10m
2026-07-26 DAL2126 DTW → BNA Jul 26, 01:10 UTCJul 26, 02:15 UTC1h 5m
2026-07-25 DAL1844 PUJ → DTW Jul 25, 18:41 UTCJul 25, 22:42 UTC4h 1m
2026-07-25 DAL1844 PUJ → DTW Jul 25, 12:45 UTCJul 25, 22:45 UTC10h 0m
2026-07-25 DAL810 SEA → BOS Jul 25, 06:47 UTCJul 25, 10:09 UTC3h 22m
2026-07-25 DAL810 SEA → BOS Jul 25, 06:50 UTCJul 25, 10:10 UTC3h 20m
2026-07-25 DAL881 LAX → CVG Jul 25, 00:35 UTCJul 25, 04:00 UTC3h 25m
2026-07-24 DAL2981 TPA → BOS Jul 24, 21:05 UTCJul 24, 23:20 UTC2h 15m
2026-07-24 DAL3104 SRQ → ATL Jul 24, 17:10 UTCJul 24, 18:30 UTC1h 20m
2026-07-24 DAL3104 SRQ → ATL Jul 24, 14:25 UTCJul 24, 15:30 UTC1h 5m
2026-07-24 DAL2838 RDU → LGA Jul 24, 11:20 UTCJul 24, 12:40 UTC1h 20m
2026-07-24 DAL2150 MSP → FLL Jul 24, 02:10 UTCJul 24, 03:50 UTC1h 40m
2026-07-23 DAL874 BOI → ATL Jul 23, 20:10 UTCJul 23, 23:40 UTC3h 30m
2026-07-23 DAL874 BOI → ATL Jul 23, 20:07 UTCJul 23, 23:43 UTC3h 36m
2026-07-23 DAL874 BOI → ATL Jul 23, 14:45 UTCJul 23, 18:35 UTC3h 50m
2026-07-23 DAL2554 BDL → ATL Jul 23, 11:10 UTCJul 23, 13:10 UTC2h 0m
2026-07-23 DAL2554 BDL → ATL Jul 23, 11:04 UTCJul 23, 13:03 UTC1h 59m
2026-07-22 DAL2504 RDU → LGA Jul 22, 23:30 UTCJul 23, 01:20 UTC1h 50m
2026-07-22 DAL1928 MBJ → ATL Jul 22, 14:25 UTCJul 22, 21:05 UTC6h 40m
2026-07-22 DAL2734 - Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-21 DAL1350 MEM → LAX Jul 21, 20:55 UTCJul 21, 22:30 UTC1h 35m
2026-07-21 DAL2908 ATL → MCI Jul 21, 17:20 UTCJul 21, 18:45 UTC1h 25m
2026-07-21 DAL2908 ATL → MCI Jul 21, 17:16 UTCJul 21, 18:44 UTC1h 28m
2026-07-21 DAL2908 ATL → MCI Jul 21, 14:10 UTCJul 21, 15:50 UTC1h 40m
2026-07-21 DAL2302 ATL → MSY Jul 21, 11:30 UTCJul 21, 12:35 UTC1h 5m
2026-07-21 DAL1858 PUJ → MSP Jul 21, 02:00 UTCJul 21, 03:00 UTC1h 0m
2026-07-20 DAL2280 - Jul 20, 23:05 UTCJul 21, 00:10 UTC1h 4m
2026-07-20 DAL2280 ATL → CMH Jul 20, 20:40 UTCJul 20, 21:45 UTC1h 5m
2026-07-20 DAL640 DTW → SAN Jul 20, 14:55 UTCJul 20, 19:15 UTC4h 20m
2026-07-20 DAL2986 - Jul 20, 07:50 UTCJul 20, 08:40 UTC50m
2026-07-20 DAL2986 LAX → SFO Jul 20, 07:48 UTCJul 20, 08:39 UTC51m
2026-07-19 DAL508 - Jul 19, 23:45 UTCJul 20, 04:10 UTC4h 25m
2026-07-19 DAL508 - Jul 19, 17:30 UTCJul 19, 22:20 UTC4h 50m
2026-07-19 DAL1598 - Jul 19, 14:30 UTCJul 19, 15:45 UTC1h 15m
2026-07-19 DAL1598 SFO → LAX Jul 19, 14:28 UTCJul 19, 15:23 UTC55m
2026-07-18 DAL517 ATL → BOS Jul 18, 22:55 UTCJul 19, 03:05 UTC4h 10m
2026-07-18 DAL1273 - Jul 18, 19:20 UTCJul 18, 19:45 UTC25m
2026-07-18 DAL1273 - Jul 18, 17:15 UTCJul 18, 17:50 UTC35m
2026-07-18 DAL3069 BNA → ATL Jul 18, 15:00 UTCJul 18, 15:40 UTC40m
2026-07-18 DAL3069 ATL → BNA Jul 18, 12:40 UTCJul 18, 13:15 UTC35m
2026-07-18 DAL3025 - Jul 18, 01:20 UTCJul 18, 02:25 UTC1h 5m
2026-07-17 DAL3025 - Jul 17, 22:00 UTCJul 17, 22:55 UTC55m
2026-07-17 DAL566 STL → ATL Jul 17, 18:34 UTCJul 17, 20:15 UTC1h 40m
2026-07-17 DAL566 STL → ATL Jul 17, 18:34 UTCJul 17, 20:10 UTC1h 36m
2026-07-17 DAL566 ATL → STL Jul 17, 15:49 UTCJul 17, 16:59 UTC1h 10m
2026-07-17 DAL1039 MSP → ATL Jul 17, 12:15 UTCJul 17, 14:15 UTC2h 0m
2026-07-16 DAL402 LGA → ATL Jul 16, 22:19 UTCJul 17, 01:25 UTC3h 5m
2026-07-16 DAL402 LGA → ATL Jul 16, 17:49 UTCJul 16, 20:49 UTC3h 0m
2026-07-16 DAL2916 SLC → MSP Jul 16, 14:10 UTCJul 16, 16:15 UTC2h 5m

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 N926DZ page for operator, model, and routing details .

Mode-S ACD4D7 frequently asked

What is Mode-S code ACD4D7?
ACD4D7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N926DZ.
Where is Mode-S ACD4D7 registered?
Mode-S code ACD4D7 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 ACD4D7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD4D7, octal 53152327, decimal 11,326,679.
What flights does ACD4D7 operate?
Mode-S ACD4D7 has broadcast 20 distinct callsigns, including DAL2236, DAL1244, DAL935, DAL765, DAL3128.