Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD185F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N943AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
AD185F
Octal
53214137
Decimal
11,343,967
Country
US
Tail
N943AT
Type
B712
No current signal · last broadcast 7d ago
Flights observed
592
Distinct callsigns
20
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S AD185F.

Country allocation

The ICAO 24-bit address AD185F 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
DAL2718 Delta Air Lines 10 2026-06-08
DAL3052 - 9 2026-06-19
DAL1248 - 9 2026-06-29
DAL3108 - 8 2026-06-30
DAL3177 Delta Air Lines 7 2026-06-01
DAL2944 Delta Air Lines 7 2026-06-16
DAL2754 Delta Air Lines 7 2026-06-01
DAL1681 - 7 2026-06-17
DAL3094 - 6 2026-06-16
DAL3088 - 6 2026-07-06
DAL3025 Delta Air Lines 6 2026-06-02
DAL2761 Delta Air Lines 6 2026-05-13
DAL2563 Delta Air Lines 6 2026-05-22
DAL1743 Delta Air Lines 6 2026-05-28
DAL1704 - 6 2026-07-05
DAL1132 Delta Air Lines 6 2026-05-30
DAL3111 Delta Air Lines 5 2026-05-26
DAL2620 Delta Air Lines 5 2026-05-21
DAL2331 Delta Air Lines 5 2026-06-24
DAL2193 - 5 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-06 DAL9950 - Jul 6, 14:40 UTCJul 6, 15:30 UTC50m
2026-07-06 DAL2802 ATL → EWR Jul 6, 12:35 UTCJul 6, 13:20 UTC45m
2026-07-06 DAL3002 ATL → BNA Jul 6, 02:45 UTCJul 6, 03:25 UTC40m
2026-07-06 DAL3002 ATL → BNA Jul 6, 02:43 UTCJul 6, 03:21 UTC38m
2026-07-06 DAL3088 - Jul 6, 00:10 UTCJul 6, 01:20 UTC1h 10m
2026-07-05 DAL3088 ATL → DAY Jul 5, 20:35 UTCJul 5, 21:50 UTC1h 15m
2026-07-05 DAL1704 - Jul 5, 16:40 UTCJul 5, 18:35 UTC1h 55m
2026-07-05 DAL1704 ATL → DSM Jul 5, 14:00 UTCJul 5, 15:30 UTC1h 30m
2026-07-05 DAL1624 - Jul 5, 11:30 UTCJul 5, 12:20 UTC50m
2026-07-05 DAL2501 - Jul 5, 03:00 UTCJul 5, 03:55 UTC55m
2026-07-05 DAL2501 ATL → MEM Jul 5, 02:56 UTCJul 5, 03:51 UTC55m
2026-07-04 DAL543 STL → ATL Jul 4, 23:45 UTCJul 5, 01:05 UTC1h 20m
2026-07-04 DAL543 ATL → STL Jul 4, 20:15 UTCJul 4, 22:30 UTC2h 15m
2026-07-04 DAL1704 DSM → ATL Jul 4, 16:50 UTCJul 4, 18:30 UTC1h 40m
2026-07-04 DAL1704 DSM → ATL Jul 4, 16:50 UTCJul 4, 18:34 UTC1h 44m
2026-07-04 DAL1704 ATL → DSM Jul 4, 13:40 UTCJul 4, 15:10 UTC1h 30m
2026-07-04 DAL2727 ATL → EWR Jul 4, 10:45 UTCJul 4, 12:25 UTC1h 40m
2026-07-04 DAL2306 ATL → DSM Jul 4, 02:35 UTCJul 4, 04:15 UTC1h 40m
2026-07-04 DAL2153 - Jul 4, 00:15 UTCJul 4, 00:50 UTC35m
2026-07-03 DAL2153 - Jul 3, 21:15 UTCJul 3, 21:45 UTC30m
2026-07-03 DAL441 - Jul 3, 16:30 UTCJul 3, 18:50 UTC2h 20m
2026-07-03 DAL441 ATL → DAL Jul 3, 13:00 UTCJul 3, 14:45 UTC1h 45m
2026-07-03 DAL3004 - Jul 3, 10:15 UTCJul 3, 11:05 UTC50m
2026-07-03 DAL3005 - Jul 3, 03:20 UTCJul 3, 04:15 UTC55m
2026-07-01 DAL1640 LAX → JFK Jul 1, 19:05 UTCJul 1, 19:50 UTC45m
2026-07-01 DAL1640 LAX → JFK Jul 1, 16:55 UTCJul 1, 17:40 UTC45m
2026-07-01 DAL376 ILM → ATL Jul 1, 14:36 UTCJul 1, 15:34 UTC58m
2026-07-01 DAL376 - Jul 1, 12:25 UTCJul 1, 13:20 UTC55m
2026-06-30 DAL1273 - Jun 30, 19:50 UTCJun 30, 20:25 UTC35m
2026-06-30 DAL1273 - Jun 30, 17:55 UTCJun 30, 18:25 UTC30m
2026-06-30 DAL3108 - Jun 30, 15:30 UTCJun 30, 15:45 UTC15m
2026-06-30 DAL3108 DAY → ATL Jun 30, 15:26 UTCJun 30, 16:34 UTC1h 8m
2026-06-30 DAL3108 ATL → DAY Jun 30, 13:20 UTCJun 30, 14:25 UTC1h 5m
2026-06-30 DAL3181 - Jun 30, 10:35 UTCJun 30, 11:20 UTC45m
2026-06-30 DAL3079 - Jun 30, 01:35 UTCJun 30, 02:15 UTC40m
2026-06-30 DAL3079 ATL → GNV Jun 30, 01:35 UTCJun 30, 02:22 UTC47m
2026-06-29 DAL2599 - Jun 29, 21:44 UTCJun 29, 23:19 UTC1h 35m
2026-06-29 DAL2599 ATL → MSN Jun 29, 18:55 UTCJun 29, 20:30 UTC1h 35m
2026-06-29 DAL1248 - Jun 29, 16:00 UTCJun 29, 17:24 UTC1h 25m
2026-06-29 DAL1248 - Jun 29, 13:34 UTCJun 29, 15:00 UTC1h 25m
2026-06-29 DAL1722 TLH → ATL Jun 29, 11:14 UTCJun 29, 12:00 UTC45m
2026-06-29 DAL1722 TLH → ATL Jun 29, 11:14 UTCJun 29, 12:06 UTC52m
2026-06-29 DAL1569 - Jun 29, 02:05 UTCJun 29, 02:35 UTC30m
2026-06-28 DAL1292 - Jun 28, 22:59 UTCJun 28, 23:54 UTC55m
2026-06-28 DAL1292 - Jun 28, 20:45 UTCJun 28, 21:40 UTC55m
2026-06-27 DAL3032 - Jun 27, 23:19 UTCJun 28, 00:00 UTC40m
2026-06-27 DAL1429 - Jun 27, 19:24 UTCJun 27, 20:49 UTC1h 25m
2026-06-27 DAL1429 DTW → CLT Jun 27, 19:22 UTCJun 27, 20:42 UTC1h 20m
2026-06-27 DAL1546 - Jun 27, 16:39 UTCJun 27, 17:39 UTC1h 0m
2026-06-27 DAL1546 BWI → DTW Jun 27, 16:36 UTCJun 27, 17:40 UTC1h 4m

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 N943AT page for operator, model, and routing details .

Mode-S AD185F frequently asked

What is Mode-S code AD185F?
AD185F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N943AT.
Where is Mode-S AD185F registered?
Mode-S code AD185F 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 AD185F broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD185F, octal 53214137, decimal 11,343,967.
What flights does AD185F operate?
Mode-S AD185F has broadcast 20 distinct callsigns, including DAL2718, DAL3052, DAL1248, DAL3108, DAL3177.