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 2h ago
Flights observed
683
Distinct callsigns
20
Country
US
Last broadcast
2h ago

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
DAL1325 Delta Air Lines 10 2026-05-30
DAL3133 - 8 2026-06-29
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
DAL2563 - 7 2026-06-21
DAL1704 Delta Air Lines 7 2026-06-12
DAL441 Delta Air Lines 6 2026-06-05
DAL3164 Delta Air Lines 6 2026-05-24
DAL3156 Delta Air Lines 6 2026-06-17
DAL3121 - 6 2026-07-08
DAL3039 Delta Air Lines 6 2026-06-02
DAL3027 Delta Air Lines 6 2026-06-04
DAL3022 - 6 2026-06-21
DAL2857 Delta Air Lines 6 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL1289 - Jul 14, 02:55 UTCJul 14, 03:55 UTC1h 0m
2026-07-14 DAL3063 - Jul 14, 00:30 UTCJul 14, 01:20 UTC50m
2026-07-13 DAL3063 ATL → BIX Jul 13, 22:40 UTCJul 13, 23:30 UTC50m
2026-07-13 DAL731 - Jul 13, 20:10 UTCJul 13, 21:15 UTC1h 5m
2026-07-13 DAL731 - Jul 13, 16:20 UTCJul 13, 17:05 UTC45m
2026-07-13 DAL1290 - Jul 13, 14:40 UTCJul 13, 15:10 UTC30m
2026-07-13 DAL1290 ATL → TYS Jul 13, 12:50 UTCJul 13, 13:20 UTC30m
2026-07-13 DAL1727 - Jul 13, 10:40 UTCJul 13, 11:25 UTC45m
2026-07-13 DAL1569 - Jul 13, 03:50 UTCJul 13, 04:30 UTC40m
2026-07-13 DAL1516 - Jul 13, 01:40 UTCJul 13, 02:25 UTC45m
2026-07-13 DAL1516 CAE → ATL Jul 13, 01:37 UTCJul 13, 02:25 UTC48m
2026-07-12 DAL1516 - Jul 12, 23:45 UTCJul 13, 00:15 UTC30m
2026-07-12 DAL2823 - Jul 12, 21:00 UTCJul 12, 21:45 UTC45m
2026-07-12 DAL2823 ATL → ECP Jul 12, 18:05 UTCJul 12, 18:55 UTC50m
2026-07-12 DAL2754 - Jul 12, 15:15 UTCJul 12, 16:45 UTC1h 30m
2026-07-12 DAL2754 - Jul 12, 12:35 UTCJul 12, 14:05 UTC1h 30m
2026-07-12 DAL3142 BNA → ATL Jul 12, 00:35 UTCJul 12, 01:10 UTC35m
2026-07-12 DAL3142 BNA → ATL Jul 12, 00:31 UTCJul 12, 01:08 UTC37m
2026-07-11 DAL3142 ATL → BNA Jul 11, 21:20 UTCJul 11, 22:35 UTC1h 15m
2026-07-11 DAL3030 - Jul 11, 17:20 UTCJul 11, 18:20 UTC1h 0m
2026-07-11 DAL3030 GNV → ATL Jul 11, 17:17 UTCJul 11, 18:17 UTC1h 0m
2026-07-11 DAL3030 - Jul 11, 15:15 UTCJul 11, 16:00 UTC45m
2026-07-11 DAL1369 ATL → GRR Jul 11, 12:48 UTCJul 11, 13:22 UTC34m
2026-07-11 DAL2257 - Jul 11, 02:40 UTCJul 11, 03:05 UTC25m
2026-07-11 DAL2257 ATL → BHM Jul 11, 02:39 UTCJul 11, 03:03 UTC24m
2026-07-10 DAL3143 - Jul 10, 23:35 UTCJul 11, 00:55 UTC1h 20m
2026-07-10 DAL3143 LEX → ATL Jul 10, 23:35 UTCJul 11, 00:43 UTC1h 8m
2026-07-10 DAL3143 ATL → LEX Jul 10, 20:50 UTCJul 10, 21:35 UTC45m
2026-07-10 DAL2620 - Jul 10, 17:45 UTCJul 10, 19:30 UTC1h 45m
2026-07-10 DAL2620 ATL → TUL Jul 10, 15:00 UTCJul 10, 16:30 UTC1h 30m
2026-07-10 DAL1160 - Jul 10, 10:55 UTCJul 10, 12:35 UTC1h 40m
2026-07-10 DAL2144 - Jul 10, 01:45 UTCJul 10, 03:25 UTC1h 40m
2026-07-09 DAL1537 - Jul 9, 18:50 UTCJul 9, 19:25 UTC35m
2026-07-09 DAL1596 - Jul 9, 01:25 UTCJul 9, 02:00 UTC35m
2026-07-08 DAL2857 MSP → ORD Jul 8, 22:25 UTCJul 8, 23:55 UTC1h 30m
2026-07-08 DAL2857 MSP → ORD Jul 8, 19:50 UTCJul 8, 21:10 UTC1h 20m
2026-07-08 DAL2944 - Jul 8, 17:55 UTCJul 8, 18:30 UTC35m
2026-07-08 DAL2944 - Jul 8, 16:10 UTCJul 8, 16:45 UTC35m
2026-07-08 DAL3011 - Jul 8, 14:10 UTCJul 8, 14:45 UTC35m
2026-07-08 DAL3011 ATL → SAV Jul 8, 12:25 UTCJul 8, 13:05 UTC40m
2026-07-08 DAL2637 BNA → ATL Jul 8, 10:15 UTCJul 8, 10:55 UTC40m
2026-07-08 DAL3121 ATL → BNA Jul 8, 04:10 UTCJul 8, 04:50 UTC40m
2026-07-08 DAL2394 GRR → DTW Jul 8, 01:40 UTCJul 8, 02:45 UTC1h 5m
2026-07-07 DAL2394 GRR → DTW Jul 7, 23:15 UTCJul 8, 00:25 UTC1h 10m
2026-07-07 DAL3078 - Jul 7, 19:40 UTCJul 7, 20:45 UTC1h 5m
2026-07-07 DAL3078 ATL → LEX Jul 7, 17:50 UTCJul 7, 18:35 UTC45m
2026-07-07 DAL2379 - Jul 7, 14:45 UTCJul 7, 16:35 UTC1h 50m
2026-07-07 DAL1616 BOS → HPN Jul 7, 04:15 UTCJul 7, 04:50 UTC35m
2026-07-07 DAL1616 BOS → HPN Jul 7, 04:11 UTCJul 7, 04:48 UTC37m
2026-07-07 DAL1616 ATL → BOS Jul 7, 00:15 UTCJul 7, 03:10 UTC2h 55m

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 2h ago.
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, DAL1325, DAL3133, DAL3051.