Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACD0CF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N925AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
ACD0CF
Octal
53150317
Decimal
11,325,647
Country
US
Tail
N925AT
Type
B712
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
781
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S ACD0CF.

Country allocation

The ICAO 24-bit address ACD0CF 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
DAL2157 Delta Air Lines 14 2026-05-21
DAL2364 Delta Air Lines 11 2026-06-03
DAL3133 - 10 2026-07-17
DAL1325 Delta Air Lines 10 2026-05-30
DAL3051 - 8 2026-06-30
DAL2034 - 8 2026-06-29
DAL1637 - 8 2026-06-29
DAL1292 Delta Air Lines 8 2026-06-11
DAL3143 - 7 2026-07-10
DAL3069 Delta Air Lines 7 2026-04-27
DAL3011 Delta Air Lines 7 2026-07-25
DAL2563 - 7 2026-06-21
DAL1704 Delta Air Lines 7 2026-06-12
DAL1155 Delta Air Lines 7 2026-07-25
DAL731 - 6 2026-07-14
DAL441 Delta Air Lines 6 2026-06-05
DAL3180 Delta Air Lines 6 2026-07-22
DAL3164 Delta Air Lines 6 2026-05-24
DAL3156 Delta Air Lines 6 2026-06-17
DAL3121 - 6 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2599 ATL → MSN Jul 26, 19:15 UTCJul 26, 20:55 UTC1h 40m
2026-07-26 DAL1248 DTW → MCO Jul 26, 15:50 UTCJul 26, 17:15 UTC1h 25m
2026-07-26 DAL1248 DTW → MCO Jul 26, 13:15 UTCJul 26, 14:45 UTC1h 30m
2026-07-26 DAL3140 DAY → ATL Jul 26, 10:10 UTCJul 26, 11:20 UTC1h 10m
2026-07-26 DAL3167 ATL → DAY Jul 26, 00:45 UTCJul 26, 01:50 UTC1h 5m
2026-07-25 DAL2763 JFK → FLL Jul 25, 21:55 UTCJul 25, 23:05 UTC1h 10m
2026-07-25 DAL2763 JFK → FLL Jul 25, 21:52 UTCJul 25, 22:57 UTC1h 5m
2026-07-25 DAL2763 JFK → FLL Jul 25, 19:45 UTCJul 25, 20:50 UTC1h 5m
2026-07-25 DAL2944 SAV → MSP Jul 25, 17:55 UTCJul 25, 18:30 UTC35m
2026-07-25 DAL2944 SAV → MSP Jul 25, 16:10 UTCJul 25, 16:45 UTC35m
2026-07-25 DAL3011 SAV → ATL Jul 25, 14:25 UTCJul 25, 15:05 UTC40m
2026-07-25 DAL3011 SAV → ATL Jul 25, 12:25 UTCJul 25, 13:05 UTC40m
2026-07-25 DAL3186 MEM → ATL Jul 25, 10:15 UTCJul 25, 10:50 UTC35m
2026-07-25 DAL3186 MEM → ATL Jul 25, 10:10 UTCJul 25, 10:55 UTC45m
2026-07-25 DAL3177 GPT → ATL Jul 25, 06:20 UTCJul 25, 06:55 UTC35m
2026-07-25 DAL1155 ATL → BNA Jul 25, 03:35 UTCJul 25, 04:15 UTC40m
2026-07-24 DAL1155 ATL → BNA Jul 24, 20:55 UTCJul 24, 22:10 UTC1h 15m
2026-07-24 DAL2853 JAX → DTW Jul 24, 16:25 UTCJul 24, 17:00 UTC35m
2026-07-24 DAL3071 ATL → AVL Jul 24, 00:05 UTCJul 24, 00:40 UTC35m
2026-07-23 DAL3014 ATL → BHM Jul 23, 21:20 UTCJul 23, 22:00 UTC40m
2026-07-23 DAL3014 ATL → BHM Jul 23, 21:19 UTCJul 23, 22:00 UTC41m
2026-07-23 DAL3014 ATL → BHM Jul 23, 19:20 UTCJul 23, 20:00 UTC40m
2026-07-23 DAL1017 ATL → JFK Jul 23, 17:10 UTCJul 23, 17:45 UTC35m
2026-07-23 DAL1017 ATL → JFK Jul 23, 15:25 UTCJul 23, 15:50 UTC25m
2026-07-23 DAL3183 JAN → ATL Jul 23, 13:15 UTCJul 23, 13:55 UTC40m
2026-07-23 DAL3183 JAN → ATL Jul 23, 12:58 UTCJul 23, 13:53 UTC55m
2026-07-22 DAL3180 JAN → ATL Jul 22, 22:50 UTCJul 22, 23:25 UTC35m
2026-07-22 DAL2467 FLL → BOS Jul 22, 20:25 UTCJul 22, 21:10 UTC45m
2026-07-22 DAL2467 FLL → BOS Jul 22, 18:25 UTCJul 22, 19:05 UTC40m
2026-07-22 DAL1687 SEA → ONT Jul 22, 15:45 UTCJul 22, 16:55 UTC1h 10m
2026-07-22 DAL1687 SEA → ONT Jul 22, 13:35 UTCJul 22, 14:35 UTC1h 0m
2026-07-22 DAL1565 - Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-22 DAL2701 ATL → LIT Jul 22, 01:10 UTCJul 22, 02:10 UTC1h 0m
2026-07-21 DAL2730 ATL → STL Jul 21, 21:15 UTCJul 21, 22:25 UTC1h 10m
2026-07-21 DAL2730 ATL → STL Jul 21, 18:50 UTCJul 21, 19:50 UTC1h 0m
2026-07-21 DAL3045 ECP → ATL Jul 21, 16:40 UTCJul 21, 17:25 UTC45m
2026-07-21 DAL3045 ATL → ECP Jul 21, 14:50 UTCJul 21, 15:30 UTC40m
2026-07-21 DAL1085 JFK → LAX Jul 21, 12:25 UTCJul 21, 13:15 UTC50m
2026-07-21 DAL1085 JFK → LAX Jul 21, 12:20 UTCJul 21, 13:14 UTC54m
2026-07-21 DAL1473 BOS → MCO Jul 21, 00:55 UTCJul 21, 01:45 UTC50m
2026-07-21 DAL1473 BOS → MCO Jul 21, 00:52 UTCJul 21, 01:45 UTC53m
2026-07-20 DAL1110 - Jul 20, 21:50 UTCJul 20, 22:40 UTC50m
2026-07-20 DAL1110 MOB → ATL Jul 20, 21:47 UTCJul 20, 22:36 UTC49m
2026-07-20 DAL1110 - Jul 20, 20:00 UTCJul 20, 20:50 UTC50m
2026-07-20 DAL3068 ATL → HSV Jul 20, 17:40 UTCJul 20, 18:10 UTC30m
2026-07-20 DAL3068 ATL → HSV Jul 20, 16:00 UTCJul 20, 16:35 UTC35m
2026-07-20 DAL3089 ATL → GSP Jul 20, 14:05 UTCJul 20, 14:35 UTC30m
2026-07-20 DAL3089 ATL → GSP Jul 20, 12:25 UTCJul 20, 12:55 UTC30m
2026-07-20 DAL2712 AVL → ATL Jul 20, 09:35 UTCJul 20, 10:10 UTC35m
2026-07-20 DAL2712 AVL → ATL Jul 20, 09:34 UTCJul 20, 10:04 UTC30m

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 N925AT page for operator, model, and routing details .

Mode-S ACD0CF frequently asked

What is Mode-S code ACD0CF?
ACD0CF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N925AT.
Where is Mode-S ACD0CF registered?
Mode-S code ACD0CF 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 ACD0CF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD0CF, octal 53150317, decimal 11,325,647.
What flights does ACD0CF operate?
Mode-S ACD0CF has broadcast 20 distinct callsigns, including DAL2157, DAL2364, DAL3133, DAL1325, DAL3051.