Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACD83D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N927AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
ACD83D
Octal
53154075
Decimal
11,327,549
Country
US
Tail
N927AT
Type
B712
No current signal · last broadcast Jul 26, 19:55 UTC
Flights observed
737
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:55 UTC

Last known position

Most recent position reported by Mode-S ACD83D.

Country allocation

The ICAO 24-bit address ACD83D 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
DAL3193 - 13 2026-06-25
DAL3190 - 13 2026-07-18
DAL512 - 11 2026-07-16
DAL3094 - 10 2026-07-18
DAL2620 - 10 2026-07-19
DAL3030 - 9 2026-06-19
DAL3088 Delta Air Lines 8 2026-05-19
DAL2128 - 8 2026-06-21
DAL1010 - 8 2026-07-14
DAL3096 Delta Air Lines 7 2026-07-25
DAL3079 - 7 2026-07-01
DAL3033 Delta Air Lines 7 2026-05-24
DAL2763 - 7 2026-06-24
DAL2718 Delta Air Lines 7 2026-06-04
DAL2007 Delta Air Lines 7 2026-04-20
DAL1979 - 7 2026-07-08
DAL1374 - 7 2026-06-24
DAL1183 - 7 2026-07-10
DAL1044 Delta Air Lines 7 2026-06-04
DAL3181 - 6 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2730 ATL → STL Jul 26, 18:50 UTCJul 26, 19:55 UTC1h 5m
2026-07-26 DAL3045 - Jul 26, 16:55 UTCJul 26, 17:40 UTC45m
2026-07-26 DAL3045 - Jul 26, 14:55 UTCJul 26, 15:45 UTC50m
2026-07-26 DAL2116 TPA → LGA Jul 26, 12:25 UTCJul 26, 13:05 UTC40m
2026-07-26 DAL2116 TPA → LGA Jul 26, 12:20 UTCJul 26, 13:10 UTC50m
2026-07-25 DAL2241 - Jul 25, 22:40 UTCJul 25, 23:25 UTC45m
2026-07-25 DAL2241 - Jul 25, 22:39 UTCJul 25, 23:18 UTC39m
2026-07-25 DAL1262 LGA → ORD Jul 25, 20:25 UTCJul 25, 21:10 UTC45m
2026-07-25 DAL1262 LGA → ORD Jul 25, 18:15 UTCJul 25, 18:50 UTC35m
2026-07-25 DAL1363 LGA → MSY Jul 25, 15:30 UTCJul 25, 16:45 UTC1h 15m
2026-07-25 DAL1363 LGA → MSY Jul 25, 13:05 UTCJul 25, 14:20 UTC1h 15m
2026-07-25 DAL3096 ATL → LEX Jul 25, 04:00 UTCJul 25, 04:30 UTC30m
2026-07-25 DAL3096 ATL → LEX Jul 25, 03:57 UTCJul 25, 04:27 UTC30m
2026-07-24 DAL3096 ATL → LEX Jul 24, 17:10 UTCJul 24, 18:45 UTC1h 35m
2026-07-24 DAL3096 ATL → LEX Jul 24, 17:09 UTCJul 24, 18:30 UTC1h 21m
2026-07-24 DAL3096 ATL → LEX Jul 24, 15:20 UTCJul 24, 16:10 UTC50m
2026-07-24 DAL2712 AVL → ATL Jul 24, 13:20 UTCJul 24, 14:05 UTC45m
2026-07-24 DAL3116 SFO → SEA Jul 24, 02:55 UTCJul 24, 03:40 UTC45m
2026-07-24 DAL2470 LGA → MSY Jul 24, 01:10 UTCJul 24, 01:40 UTC30m
2026-07-23 DAL2371 DTW → PHL Jul 23, 23:45 UTCJul 24, 00:10 UTC25m
2026-07-23 DAL2371 DTW → PHL Jul 23, 23:43 UTCJul 24, 00:28 UTC45m
2026-07-23 DAL9902 BOS → AMS Jul 23, 21:19 UTCJul 23, 22:22 UTC1h 3m
2026-07-23 DAL9902 BOS → AMS Jul 23, 19:30 UTCJul 23, 20:30 UTC1h 0m
2026-07-23 DAL9901 LGW → JFK Jul 23, 17:10 UTCJul 23, 18:15 UTC1h 5m
2026-07-23 DAL9901 LGW → JFK Jul 23, 15:15 UTCJul 23, 16:20 UTC1h 5m
2026-07-23 DAL1158 MSN → DTW Jul 23, 12:15 UTCJul 23, 13:55 UTC1h 40m
2026-07-23 DAL1158 MSN → DTW Jul 23, 12:11 UTCJul 23, 13:51 UTC1h 40m
2026-07-23 DAL2784 ORD → LGA Jul 23, 00:21 UTCJul 23, 01:59 UTC1h 38m
2026-07-23 DAL2784 ORD → LGA Jul 23, 00:25 UTCJul 23, 02:00 UTC1h 35m
2026-07-22 DAL3014 ATL → BHM Jul 22, 22:20 UTCJul 22, 22:55 UTC35m
2026-07-22 DAL3014 ATL → BHM Jul 22, 20:35 UTCJul 22, 21:15 UTC40m
2026-07-22 DAL1537 SEA → CVG Jul 22, 18:40 UTCJul 22, 19:15 UTC35m
2026-07-22 DAL1596 MSP → ATL Jul 22, 17:05 UTCJul 22, 17:40 UTC35m
2026-07-21 DAL1149 - Jul 21, 14:30 UTCJul 21, 15:20 UTC50m
2026-07-21 DAL1149 MEM → ATL Jul 21, 14:27 UTCJul 21, 15:16 UTC49m
2026-07-20 DAL2384 GEG → SEA Jul 20, 23:10 UTCJul 21, 00:05 UTC55m
2026-07-20 DAL3014 SAV → ATL Jul 20, 21:25 UTCJul 20, 22:05 UTC40m
2026-07-20 DAL3014 ATL → SAV Jul 20, 19:20 UTCJul 20, 20:00 UTC40m
2026-07-20 DAL1725 - Jul 20, 17:45 UTCJul 20, 18:15 UTC30m
2026-07-20 DAL1725 GSP → ATL Jul 20, 17:42 UTCJul 20, 18:09 UTC27m
2026-07-20 DAL1725 - Jul 20, 15:35 UTCJul 20, 16:10 UTC35m
2026-07-19 DAL2620 RDU → BOS Jul 19, 22:00 UTCJul 19, 23:40 UTC1h 40m
2026-07-19 DAL2620 RDU → BOS Jul 19, 22:00 UTCJul 20, 00:24 UTC2h 24m
2026-07-19 DAL2620 ATL → TUL Jul 19, 15:10 UTCJul 19, 16:45 UTC1h 35m
2026-07-19 DAL3183 - Jul 19, 13:15 UTCJul 19, 14:00 UTC45m
2026-07-18 DAL3180 - Jul 18, 22:50 UTCJul 18, 23:20 UTC30m
2026-07-18 DAL2546 CVG → ATL Jul 18, 20:45 UTCJul 18, 21:25 UTC40m
2026-07-18 DAL2546 CVG → ATL Jul 18, 18:50 UTCJul 18, 19:30 UTC40m
2026-07-18 DAL3190 - Jul 18, 16:40 UTCJul 18, 17:20 UTC40m
2026-07-18 DAL3190 - Jul 18, 14:25 UTCJul 18, 15:05 UTC40m

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 N927AT page for operator, model, and routing details .

Mode-S ACD83D frequently asked

What is Mode-S code ACD83D?
ACD83D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N927AT.
Where is Mode-S ACD83D registered?
Mode-S code ACD83D 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 ACD83D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD83D, octal 53154075, decimal 11,327,549.
What flights does ACD83D operate?
Mode-S ACD83D has broadcast 20 distinct callsigns, including DAL3193, DAL3190, DAL512, DAL3094, DAL2620.