sensors Mode-S transponder

ACF0E0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N933AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
ACF0E0
Octal
53170340
Decimal
11,333,856
Country
US
Tail
N933AT
Type
B712
No current signal · last broadcast Jul 25, 20:45 UTC
Flights observed
578
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 20:45 UTC

Last known position

Most recent position reported by Mode-S ACF0E0.

Country allocation

The ICAO 24-bit address ACF0E0 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
DAL3127 Delta Air Lines 12 2026-06-13
DAL3011 - 11 2026-07-10
DAL2364 Delta Air Lines 10 2026-07-25
DAL2857 - 9 2026-07-13
DAL1704 Delta Air Lines 9 2026-07-22
DAL3092 - 8 2026-07-06
DAL1549 - 8 2026-07-14
DAL1115 Delta Air Lines 8 2026-07-24
DAL3064 - 7 2026-07-21
DAL1104 - 7 2026-06-25
DAL3108 Delta Air Lines 6 2026-05-18
DAL2763 - 6 2026-07-03
DAL2539 - 6 2026-07-21
DAL1374 - 6 2026-07-09
DAL2944 - 5 2026-06-24
DAL2862 Delta Air Lines 5 2026-05-25
DAL2741 Delta Air Lines 5 2026-06-21
DAL2571 Delta Air Lines 5 2026-05-29
DAL2467 Delta Air Lines 5 2026-07-04
DAL2250 - 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 DAL3159 ATL → BNA Jul 25, 20:00 UTCJul 25, 20:40 UTC40m
2026-07-25 DAL3159 ATL → BNA Jul 25, 18:05 UTCJul 25, 18:50 UTC45m
2026-07-25 DAL2942 ATL → PHL Jul 25, 16:25 UTCJul 25, 16:50 UTC25m
2026-07-25 DAL2942 ATL → PHL Jul 25, 15:00 UTCJul 25, 15:20 UTC20m
2026-07-25 DAL2712 AVL → ATL Jul 25, 13:10 UTCJul 25, 13:40 UTC30m
2026-07-25 DAL3116 SFO → SEA Jul 25, 11:30 UTCJul 25, 12:00 UTC30m
2026-07-25 DAL3116 SFO → SEA Jul 25, 11:29 UTCJul 25, 12:05 UTC36m
2026-07-25 DAL1044 TPA → ATL Jul 25, 09:45 UTCJul 25, 10:15 UTC30m
2026-07-25 DAL1059 FLL → LGA Jul 25, 03:40 UTCJul 25, 04:10 UTC30m
2026-07-25 DAL2364 ATL → OMA Jul 25, 00:30 UTCJul 25, 02:20 UTC1h 50m
2026-07-24 DAL2364 ATL → OMA Jul 24, 20:50 UTCJul 24, 22:45 UTC1h 55m
2026-07-24 DAL1115 DTW → PHL Jul 24, 17:45 UTCJul 24, 19:35 UTC1h 50m
2026-07-24 DAL1115 DTW → PHL Jul 24, 17:44 UTCJul 24, 19:31 UTC1h 47m
2026-07-24 DAL1115 DTW → PHL Jul 24, 15:00 UTCJul 24, 16:40 UTC1h 40m
2026-07-24 DAL1369 ATL → GRR Jul 24, 12:40 UTCJul 24, 13:10 UTC30m
2026-07-24 DAL3202 ATL → BNA Jul 24, 01:30 UTCJul 24, 01:55 UTC25m
2026-07-23 DAL512 DAL → ATL Jul 23, 21:15 UTCJul 23, 22:55 UTC1h 40m
2026-07-23 DAL512 DAL → ATL Jul 23, 18:10 UTCJul 23, 19:55 UTC1h 45m
2026-07-23 DAL1286 - Jul 23, 16:00 UTCJul 23, 16:50 UTC50m
2026-07-23 DAL1286 - Jul 23, 13:45 UTCJul 23, 14:25 UTC40m
2026-07-23 DAL2727 - Jul 23, 10:45 UTCJul 23, 12:15 UTC1h 30m
2026-07-23 DAL2306 ATL → DSM Jul 23, 01:40 UTCJul 23, 03:30 UTC1h 50m
2026-07-22 DAL2153 MSP → GRR Jul 22, 23:45 UTCJul 23, 00:25 UTC40m
2026-07-22 DAL2153 MSP → GRR Jul 22, 20:25 UTCJul 22, 20:55 UTC30m
2026-07-22 DAL1704 DTW → FLL Jul 22, 16:35 UTCJul 22, 18:15 UTC1h 40m
2026-07-22 DAL1704 DTW → FLL Jul 22, 16:30 UTCJul 22, 18:03 UTC1h 33m
2026-07-22 DAL1704 DTW → FLL Jul 22, 13:45 UTCJul 22, 15:30 UTC1h 45m
2026-07-22 DAL1624 SAN → MSP Jul 22, 11:30 UTCJul 22, 12:15 UTC45m
2026-07-22 DAL1624 SAN → MSP Jul 22, 11:19 UTCJul 22, 12:13 UTC54m
2026-07-22 DAL2384 GEG → SEA Jul 22, 00:10 UTCJul 22, 01:05 UTC55m
2026-07-21 DAL2539 - Jul 21, 20:30 UTCJul 21, 21:20 UTC50m
2026-07-21 DAL2539 - Jul 21, 18:20 UTCJul 21, 19:10 UTC50m
2026-07-21 DAL3064 - Jul 21, 16:15 UTCJul 21, 16:55 UTC40m
2026-07-21 DAL3064 - Jul 21, 14:30 UTCJul 21, 15:05 UTC35m
2026-07-21 DAL2853 - Jul 21, 12:00 UTCJul 21, 12:40 UTC40m
2026-07-21 DAL3071 ATL → AVL Jul 21, 00:45 UTCJul 21, 01:15 UTC30m
2026-07-20 DAL3026 - Jul 20, 21:25 UTCJul 20, 21:55 UTC30m
2026-07-20 DAL3026 - Jul 20, 19:40 UTCJul 20, 20:15 UTC35m
2026-07-20 DAL1704 DTW → FLL Jul 20, 16:25 UTCJul 20, 18:05 UTC1h 40m
2026-07-20 DAL1704 DTW → FLL Jul 20, 13:45 UTCJul 20, 15:30 UTC1h 45m
2026-07-20 DAL2727 - Jul 20, 10:45 UTCJul 20, 12:25 UTC1h 40m
2026-07-20 DAL2306 ATL → DSM Jul 20, 01:30 UTCJul 20, 03:15 UTC1h 45m
2026-07-19 DAL3027 ATL → LIT Jul 19, 22:35 UTCJul 20, 00:00 UTC1h 25m
2026-07-19 DAL3027 ATL → LIT Jul 19, 22:28 UTCJul 19, 23:59 UTC1h 31m
2026-07-19 DAL3027 ATL → LIT Jul 19, 19:50 UTCJul 19, 21:00 UTC1h 10m
2026-07-19 DAL2250 - Jul 19, 13:45 UTCJul 19, 14:25 UTC40m
2026-07-19 DAL2250 BNA → ATL Jul 19, 13:42 UTCJul 19, 14:22 UTC40m
2026-07-19 DAL2250 ATL → BNA Jul 19, 11:40 UTCJul 19, 12:15 UTC35m
2026-07-19 DAL1126 PDX → LAX Jul 19, 00:35 UTCJul 19, 01:30 UTC55m
2026-07-18 DAL1126 PDX → LAX Jul 18, 20:15 UTCJul 18, 21:30 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 N933AT page for operator, model, and routing details .

Mode-S ACF0E0 frequently asked

What is Mode-S code ACF0E0?
ACF0E0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N933AT.
Where is Mode-S ACF0E0 registered?
Mode-S code ACF0E0 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 ACF0E0 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 20:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF0E0, octal 53170340, decimal 11,333,856.
What flights does ACF0E0 operate?
Mode-S ACF0E0 has broadcast 20 distinct callsigns, including DAL3127, DAL3011, DAL2364, DAL2857, DAL1704.