Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 13h ago
Flights observed
405
Distinct callsigns
20
Country
US
Last broadcast
13h ago

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 Delta Air Lines 9 2026-06-12
DAL1104 - 7 2026-06-25
DAL3108 Delta Air Lines 6 2026-05-18
DAL3092 Delta Air Lines 6 2026-05-28
DAL2944 - 5 2026-06-24
DAL2862 Delta Air Lines 5 2026-05-25
DAL2857 Delta Air Lines 5 2026-06-12
DAL2741 Delta Air Lines 5 2026-06-21
DAL2571 Delta Air Lines 5 2026-05-29
DAL2364 Delta Air Lines 5 2026-05-28
DAL1115 Delta Air Lines 5 2026-05-22
DAL720 - 4 2026-06-19
DAL516 - 4 2026-06-25
DAL3177 Delta Air Lines 4 2026-05-22
DAL3083 - 4 2026-06-24
DAL2577 Delta Air Lines 4 2026-06-02
DAL2539 Delta Air Lines 4 2026-06-06
DAL2020 Delta Air Lines 4 2026-06-07
DAL1637 Delta Air Lines 4 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-27 DAL3186 - Jun 27, 10:29 UTCJun 27, 11:09 UTC40m
2026-06-27 DAL3186 CLT → ATL Jun 27, 10:26 UTCJun 27, 11:07 UTC41m
2026-06-27 DAL2352 - Jun 27, 00:14 UTCJun 27, 01:39 UTC1h 25m
2026-06-26 DAL1391 EWR → DTW Jun 26, 21:39 UTCJun 26, 22:55 UTC1h 15m
2026-06-26 DAL1391 EWR → DTW Jun 26, 21:34 UTCJun 26, 22:54 UTC1h 20m
2026-06-26 DAL1391 EWR → DTW Jun 26, 19:04 UTCJun 26, 20:15 UTC1h 10m
2026-06-26 DAL1546 - Jun 26, 16:44 UTCJun 26, 17:50 UTC1h 5m
2026-06-26 DAL1546 BWI → DTW Jun 26, 16:42 UTCJun 26, 17:47 UTC1h 5m
2026-06-26 DAL1546 - Jun 26, 14:35 UTCJun 26, 15:45 UTC1h 10m
2026-06-26 DAL2370 - Jun 26, 11:49 UTCJun 26, 13:15 UTC1h 25m
2026-06-26 DAL2001 - Jun 26, 00:30 UTCJun 26, 01:29 UTC1h 0m
2026-06-25 DAL3094 - Jun 25, 22:34 UTCJun 25, 23:14 UTC40m
2026-06-25 DAL3094 - Jun 25, 20:25 UTCJun 25, 21:10 UTC45m
2026-06-25 DAL304 SNA → DTW Jun 25, 17:34 UTCJun 25, 19:20 UTC1h 45m
2026-06-25 DAL304 SNA → DTW Jun 25, 17:32 UTCJun 25, 19:11 UTC1h 39m
2026-06-25 DAL304 SNA → DTW Jun 25, 14:34 UTCJun 25, 16:14 UTC1h 40m
2026-06-25 DAL516 - Jun 25, 11:30 UTCJun 25, 13:09 UTC1h 40m
2026-06-25 DAL516 DAL → ATL Jun 25, 11:29 UTCJun 25, 13:03 UTC1h 34m
2026-06-25 DAL1104 ATL → DAL Jun 25, 01:24 UTCJun 25, 03:10 UTC1h 45m
2026-06-24 DAL3083 - Jun 24, 22:19 UTCJun 24, 23:00 UTC40m
2026-06-24 DAL3083 - Jun 24, 20:09 UTCJun 24, 20:44 UTC35m
2026-06-24 DAL2944 - Jun 24, 18:20 UTCJun 24, 18:55 UTC35m
2026-06-24 DAL2944 CAE → ATL Jun 24, 18:18 UTCJun 24, 18:56 UTC38m
2026-06-24 DAL2944 - Jun 24, 16:45 UTCJun 24, 17:20 UTC35m
2026-06-24 DAL3089 - Jun 24, 14:09 UTCJun 24, 14:45 UTC35m
2026-06-24 DAL3089 GSP → ATL Jun 24, 14:08 UTCJun 24, 14:40 UTC32m
2026-06-24 DAL3089 - Jun 24, 12:25 UTCJun 24, 12:54 UTC30m
2026-06-24 DAL2953 - Jun 24, 09:45 UTCJun 24, 10:49 UTC1h 5m
2026-06-24 DAL2435 - Jun 24, 02:24 UTCJun 24, 03:29 UTC1h 5m
2026-06-23 DAL2182 HSV → ATL Jun 23, 23:24 UTCJun 23, 23:59 UTC35m
2026-06-23 DAL2182 HSV → ATL Jun 23, 23:21 UTCJun 23, 23:52 UTC31m
2026-06-23 DAL2182 ATL → HSV Jun 23, 21:39 UTCJun 23, 22:10 UTC30m
2026-06-23 DAL1640 LAX → JFK Jun 23, 19:04 UTCJun 23, 19:50 UTC45m
2026-06-23 DAL1640 LAX → JFK Jun 23, 16:59 UTCJun 23, 17:50 UTC50m
2026-06-23 DAL3033 - Jun 23, 14:39 UTCJun 23, 15:40 UTC1h 0m
2026-06-23 DAL3033 - Jun 23, 12:15 UTCJun 23, 13:15 UTC1h 0m
2026-06-22 DAL3174 BTR → ATL Jun 22, 15:24 UTCJun 22, 15:59 UTC35m
2026-06-22 DAL2481 - Jun 22, 13:10 UTCJun 22, 14:24 UTC1h 15m
2026-06-22 DAL1084 MSP → SFO Jun 22, 00:44 UTCJun 22, 01:29 UTC45m
2026-06-21 DAL1084 MSP → SFO Jun 21, 22:20 UTCJun 21, 22:54 UTC35m
2026-06-21 DAL1084 MSP → SFO Jun 21, 22:04 UTCJun 21, 22:15 UTC10m
2026-06-21 DAL2741 JAN → ATL Jun 21, 19:09 UTCJun 21, 20:40 UTC1h 30m
2026-06-21 DAL2741 JAN → ATL Jun 21, 16:30 UTCJun 21, 18:00 UTC1h 30m
2026-06-21 DAL1639 SJC → ATL Jun 21, 13:59 UTCJun 21, 15:15 UTC1h 15m
2026-06-21 DAL3144 - Jun 21, 11:55 UTCJun 21, 12:35 UTC40m
2026-06-21 DAL2712 - Jun 21, 09:49 UTCJun 21, 10:25 UTC35m
2026-06-21 DAL3116 SFO → SEA Jun 21, 02:10 UTCJun 21, 02:40 UTC30m
2026-06-20 DAL1278 MSP → DTW Jun 20, 21:50 UTCJun 20, 23:33 UTC1h 43m
2026-06-20 DAL1278 MSP → DTW Jun 20, 17:49 UTCJun 20, 17:59 UTC10m
2026-06-20 DAL573 - Jun 20, 16:05 UTCJun 20, 16:39 UTC35m

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 13h ago.
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, DAL1104, DAL3108, DAL3092.