Apparatus

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sensors Mode-S transponder

AB92C4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N845DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AB92C4
Octal
52711304
Decimal
11,244,228
Country
US
Tail
N845DN
Type
B739
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
552
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S AB92C4.

Country allocation

The ICAO 24-bit address AB92C4 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
DAL1757 - 8 2026-07-01
DAL1359 Delta Air Lines 7 2026-06-23
DAL743 Delta Air Lines 6 2026-07-19
DAL444 Delta Air Lines 6 2026-04-24
DAL3112 - 6 2026-06-23
DAL2951 Delta Air Lines 6 2026-06-15
DAL2058 Delta Air Lines 6 2026-05-14
DAL1688 Delta Air Lines 6 2026-06-14
DAL1363 Delta Air Lines 6 2026-05-14
DAL963 - 5 2026-07-17
DAL902 Delta Air Lines 5 2026-05-29
DAL2449 Delta Air Lines 5 2026-04-19
DAL2438 - 5 2026-07-18
DAL1146 - 5 2026-07-02
DAL1082 - 5 2026-07-16
DAL569 Delta Air Lines 4 2026-06-24
DAL567 Delta Air Lines 4 2026-04-20
DAL2530 Delta Air Lines 4 2026-06-03
DAL2329 Delta Air Lines 4 2026-07-20
DAL1949 Delta Air Lines 4 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL908 DTW → LAX Jul 26, 18:30 UTCJul 26, 22:40 UTC4h 10m
2026-07-26 DAL2399 CAE → ATL Jul 26, 12:50 UTCJul 26, 16:45 UTC3h 55m
2026-07-26 DAL2854 BOS → MCO Jul 26, 03:53 UTCJul 26, 06:09 UTC2h 16m
2026-07-26 DAL2854 BOS → MCO Jul 26, 03:55 UTCJul 26, 06:15 UTC2h 20m
2026-07-25 DAL944 MSP → SJC Jul 25, 21:00 UTCJul 26, 01:30 UTC4h 30m
2026-07-25 DAL2222 YUL → ATL Jul 25, 17:20 UTCJul 25, 18:50 UTC1h 30m
2026-07-25 DAL2648 DTW → BOS Jul 25, 14:20 UTCJul 25, 15:45 UTC1h 25m
2026-07-25 DAL1262 LGA → ORD Jul 25, 00:50 UTCJul 25, 02:15 UTC1h 25m
2026-07-24 DAL1246 MSP → BOS Jul 24, 21:45 UTCJul 24, 23:20 UTC1h 35m
2026-07-24 DAL1246 MSP → BOS Jul 24, 21:43 UTCJul 24, 23:14 UTC1h 31m
2026-07-24 DAL1246 MSP → BOS Jul 24, 17:30 UTCJul 24, 19:20 UTC1h 50m
2026-07-24 DAL3128 MSY → ATL Jul 24, 14:25 UTCJul 24, 15:25 UTC1h 0m
2026-07-24 DAL3128 MSY → ATL Jul 24, 14:20 UTCJul 24, 15:25 UTC1h 5m
2026-07-24 DAL3128 MSY → ATL Jul 24, 12:10 UTCJul 24, 13:10 UTC1h 0m
2026-07-24 DAL1346 DTW → MIA Jul 24, 00:10 UTCJul 24, 01:30 UTC1h 20m
2026-07-23 DAL1346 DTW → MIA Jul 23, 21:20 UTCJul 23, 22:30 UTC1h 10m
2026-07-23 DAL2778 MEM → ATL Jul 23, 18:50 UTCJul 23, 19:45 UTC55m
2026-07-23 DAL2778 MEM → ATL Jul 23, 18:48 UTCJul 23, 19:40 UTC52m
2026-07-23 DAL2778 MEM → ATL Jul 23, 16:30 UTCJul 23, 17:15 UTC45m
2026-07-23 DAL1741 ELP → ATL Jul 23, 12:45 UTCJul 23, 15:15 UTC2h 30m
2026-07-23 DAL1741 ELP → ATL Jul 23, 12:28 UTCJul 23, 15:03 UTC2h 35m
2026-07-23 DAL1713 ATL → ELP Jul 23, 00:10 UTCJul 23, 02:46 UTC2h 36m
2026-07-23 DAL1713 ATL → ELP Jul 23, 00:10 UTCJul 23, 02:35 UTC2h 25m
2026-07-22 DAL2545 - Jul 22, 20:40 UTCJul 22, 22:05 UTC1h 25m
2026-07-22 DAL2545 ATL → CLE Jul 22, 17:50 UTCJul 22, 19:10 UTC1h 20m
2026-07-22 DAL1396 - Jul 22, 14:25 UTCJul 22, 15:30 UTC1h 5m
2026-07-22 DAL2083 BDL → ATL Jul 22, 02:45 UTCJul 22, 03:45 UTC1h 0m
2026-07-22 DAL2083 BDL → ATL Jul 22, 02:45 UTCJul 22, 03:50 UTC1h 5m
2026-07-21 DAL3056 ATL → DAB Jul 21, 23:30 UTCJul 22, 00:25 UTC55m
2026-07-21 DAL3056 ATL → DAB Jul 21, 21:05 UTCJul 21, 22:00 UTC55m
2026-07-21 DAL3048 - Jul 21, 18:30 UTCJul 21, 19:15 UTC45m
2026-07-21 DAL3048 - Jul 21, 17:00 UTCJul 21, 17:40 UTC40m
2026-07-21 DAL2233 - Jul 21, 13:35 UTCJul 21, 15:40 UTC2h 5m
2026-07-21 DAL2233 BDL → ATL Jul 21, 13:30 UTCJul 21, 15:39 UTC2h 9m
2026-07-21 DAL1011 ATL → BDL Jul 21, 01:47 UTCJul 21, 03:46 UTC1h 59m
2026-07-21 DAL1011 ATL → BDL Jul 21, 01:50 UTCJul 21, 03:50 UTC2h 0m
2026-07-20 DAL2329 ATL → PVD Jul 20, 22:50 UTCJul 21, 00:05 UTC1h 15m
2026-07-20 DAL2329 ATL → PVD Jul 20, 19:35 UTCJul 20, 21:00 UTC1h 25m
2026-07-20 DAL741 SMF → ATL Jul 20, 13:45 UTCJul 20, 17:55 UTC4h 10m
2026-07-19 DAL743 ATL → SMF Jul 19, 22:20 UTCJul 20, 02:35 UTC4h 15m
2026-07-19 DAL2710 LGA → IAH Jul 19, 17:55 UTCJul 19, 20:30 UTC2h 35m
2026-07-19 DAL2883 ATL → YYZ Jul 19, 14:17 UTCJul 19, 16:00 UTC1h 43m
2026-07-19 DAL2883 ATL → YYZ Jul 19, 14:20 UTCJul 19, 16:00 UTC1h 40m
2026-07-19 DAL2302 - Jul 19, 11:20 UTCJul 19, 12:20 UTC1h 0m
2026-07-18 DAL3119 ATL → CVG Jul 18, 22:20 UTCJul 18, 23:20 UTC1h 0m
2026-07-18 DAL2438 - Jul 18, 19:15 UTCJul 18, 20:20 UTC1h 5m
2026-07-18 DAL2438 ATL → SRQ Jul 18, 17:00 UTCJul 18, 18:00 UTC1h 0m
2026-07-18 DAL2554 - Jul 18, 13:35 UTCJul 18, 15:40 UTC2h 5m
2026-07-18 DAL2504 - Jul 18, 00:25 UTCJul 18, 02:29 UTC2h 5m
2026-07-18 DAL2504 ATL → BDL Jul 18, 00:24 UTCJul 18, 02:23 UTC1h 59m

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 N845DN page for operator, model, and routing details .

Mode-S AB92C4 frequently asked

What is Mode-S code AB92C4?
AB92C4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N845DN.
Where is Mode-S AB92C4 registered?
Mode-S code AB92C4 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 AB92C4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB92C4, octal 52711304, decimal 11,244,228.
What flights does AB92C4 operate?
Mode-S AB92C4 has broadcast 20 distinct callsigns, including DAL1757, DAL1359, DAL743, DAL444, DAL3112.