Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACF497

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N934AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
ACF497
Octal
53172227
Decimal
11,334,807
Country
US
Tail
N934AT
Type
B712
No current signal · last broadcast 20d ago
Flights observed
160
Distinct callsigns
20
Country
US
Last broadcast
20d ago

Last known position

Most recent position reported by Mode-S ACF497.

Country allocation

The ICAO 24-bit address ACF497 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
DAL2480 - 6 2026-07-11
DAL304 Delta Air Lines 5 2026-07-25
DAL8959 - 4 2026-07-03
DAL441 Delta Air Lines 4 2026-07-23
DAL3166 Delta Air Lines 4 2026-07-07
DAL2944 Delta Air Lines 4 2026-07-21
DAL2341 - 4 2026-07-13
DAL1686 - 4 2026-07-09
DAL8960 - 3 2026-07-18
DAL731 Delta Air Lines 3 2026-07-24
DAL3063 Delta Air Lines 3 2026-07-25
DAL3011 - 3 2026-07-15
DAL2803 - 3 2026-07-21
DAL2741 Delta Air Lines 3 2026-07-09
DAL2676 - 3 2026-07-13
DAL2484 Delta Air Lines 3 2026-07-25
DAL2364 - 3 2026-07-22
DAL2220 - 3 2026-07-20
DAL2164 - 3 2026-07-11
DAL2128 Delta Air Lines 3 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL512 DAL → ATL Jul 26, 21:15 UTCJul 26, 21:45 UTC30m
2026-07-26 DAL512 DAL → ATL Jul 26, 18:30 UTCJul 26, 20:05 UTC1h 35m
2026-07-26 DAL1622 LAX → SEA Jul 26, 16:50 UTCJul 26, 17:20 UTC30m
2026-07-26 DAL1622 LAX → SEA Jul 26, 14:30 UTCJul 26, 15:00 UTC30m
2026-07-26 DAL1160 MSN → ATL Jul 26, 10:50 UTCJul 26, 12:25 UTC1h 35m
2026-07-26 DAL2144 SLC → SJC Jul 26, 02:00 UTCJul 26, 03:45 UTC1h 45m
2026-07-25 DAL2484 ATL → BHM Jul 25, 22:15 UTCJul 25, 23:10 UTC55m
2026-07-25 DAL2484 ATL → BHM Jul 25, 22:10 UTCJul 25, 23:02 UTC52m
2026-07-25 DAL2484 ATL → BHM Jul 25, 20:10 UTCJul 25, 21:00 UTC50m
2026-07-25 DAL304 SNA → DTW Jul 25, 17:05 UTCJul 25, 18:45 UTC1h 40m
2026-07-25 DAL304 SNA → DTW Jul 25, 14:30 UTCJul 25, 16:05 UTC1h 35m
2026-07-25 DAL3009 HSV → ATL Jul 25, 12:19 UTCJul 25, 12:57 UTC38m
2026-07-25 DAL3022 ATL → HSV Jul 25, 03:10 UTCJul 25, 03:40 UTC30m
2026-07-25 DAL3063 RIC → MSP Jul 25, 00:40 UTCJul 25, 01:30 UTC50m
2026-07-25 DAL3063 RIC → MSP Jul 25, 00:33 UTCJul 25, 01:27 UTC54m
2026-07-24 DAL3063 RIC → MSP Jul 24, 22:55 UTCJul 24, 23:45 UTC50m
2026-07-24 DAL731 BOS → FLL Jul 24, 20:45 UTCJul 24, 21:40 UTC55m
2026-07-24 DAL731 BOS → FLL Jul 24, 16:25 UTCJul 24, 17:25 UTC1h 0m
2026-07-24 DAL731 BOS → FLL Jul 24, 16:24 UTCJul 24, 17:23 UTC59m
2026-07-24 DAL2563 - Jul 24, 14:25 UTCJul 24, 15:10 UTC45m
2026-07-24 DAL2563 - Jul 24, 12:35 UTCJul 24, 13:20 UTC45m
2026-07-24 DAL2556 MSP → SFO Jul 24, 10:35 UTCJul 24, 11:10 UTC35m
2026-07-24 DAL3022 ATL → HSV Jul 24, 03:15 UTCJul 24, 03:45 UTC30m
2026-07-24 DAL3171 ATL → HSV Jul 24, 00:45 UTCJul 24, 01:20 UTC35m
2026-07-23 DAL3171 ATL → HSV Jul 23, 23:20 UTCJul 23, 23:50 UTC30m
2026-07-23 DAL2467 FLL → BOS Jul 23, 20:30 UTCJul 23, 21:15 UTC45m
2026-07-23 DAL2467 FLL → BOS Jul 23, 18:25 UTCJul 23, 19:05 UTC40m
2026-07-23 DAL441 RDU → MSP Jul 23, 15:40 UTCJul 23, 17:20 UTC1h 40m
2026-07-23 DAL441 RDU → MSP Jul 23, 12:35 UTCJul 23, 14:10 UTC1h 35m
2026-07-22 DAL2364 - Jul 22, 23:40 UTCJul 23, 01:25 UTC1h 45m
2026-07-22 DAL2364 OMA → ATL Jul 22, 23:38 UTCJul 23, 01:19 UTC1h 41m
2026-07-22 DAL2364 ATL → OMA Jul 22, 20:55 UTCJul 22, 22:45 UTC1h 50m
2026-07-22 DAL304 SNA → DTW Jul 22, 17:35 UTCJul 22, 19:10 UTC1h 35m
2026-07-22 DAL304 SNA → DTW Jul 22, 17:34 UTCJul 22, 19:07 UTC1h 33m
2026-07-22 DAL304 SNA → DTW Jul 22, 14:30 UTCJul 22, 16:15 UTC1h 45m
2026-07-22 DAL2379 ATL → HPN Jul 22, 11:30 UTCJul 22, 12:30 UTC1h 0m
2026-07-22 DAL2379 ATL → HPN Jul 22, 10:34 UTCJul 22, 12:29 UTC1h 55m
2026-07-22 DAL1616 ORD → MSP Jul 22, 00:45 UTCJul 22, 03:30 UTC2h 45m
2026-07-21 DAL1868 SEA → CUN Jul 21, 21:45 UTCJul 21, 22:30 UTC45m
2026-07-21 DAL1868 SEA → CUN Jul 21, 19:50 UTCJul 21, 20:30 UTC40m
2026-07-21 DAL2944 SAV → MSP Jul 21, 18:05 UTCJul 21, 18:45 UTC40m
2026-07-21 DAL2944 SAV → MSP Jul 21, 16:20 UTCJul 21, 16:50 UTC30m
2026-07-21 DAL1010 DFW → DTW Jul 21, 14:15 UTCJul 21, 14:55 UTC40m
2026-07-21 DAL1010 DFW → DTW Jul 21, 14:10 UTCJul 21, 14:54 UTC44m
2026-07-21 DAL1010 DFW → DTW Jul 21, 12:25 UTCJul 21, 13:00 UTC35m
2026-07-21 DAL1666 - Jul 21, 10:20 UTCJul 21, 11:15 UTC55m
2026-07-21 DAL2501 LGA → MSY Jul 21, 03:20 UTCJul 21, 04:20 UTC1h 0m
2026-07-21 DAL2501 LGA → MSY Jul 21, 03:19 UTCJul 21, 04:10 UTC51m
2026-07-21 DAL2803 - Jul 21, 00:45 UTCJul 21, 01:30 UTC45m
2026-07-21 DAL2803 VPS → ATL Jul 21, 00:39 UTCJul 21, 01:26 UTC47m

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 N934AT page for operator, model, and routing details .

Mode-S ACF497 frequently asked

What is Mode-S code ACF497?
ACF497 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N934AT.
Where is Mode-S ACF497 registered?
Mode-S code ACF497 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 ACF497 broadcasting right now?
No active broadcast right now. Last signal was 20d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF497, octal 53172227, decimal 11,334,807.
What flights does ACF497 operate?
Mode-S ACF497 has broadcast 20 distinct callsigns, including DAL2480, DAL304, DAL8959, DAL441, DAL3166.