Apparatus

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sensors Mode-S transponder

ABB68C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N854DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
ABB68C
Octal
52733214
Decimal
11,253,388
Country
US
Tail
N854DN
Type
B739
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
519
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S ABB68C.

Country allocation

The ICAO 24-bit address ABB68C 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
DAL2071 - 7 2026-07-07
DAL743 Delta Air Lines 6 2026-07-20
DAL3104 - 6 2026-07-15
DAL2843 Delta Air Lines 6 2026-07-21
DAL2711 - 6 2026-06-28
DAL3013 - 5 2026-07-19
DAL2653 - 5 2026-07-16
DAL2215 Delta Air Lines 5 2026-04-13
DAL1757 - 5 2026-07-20
DAL866 Delta Air Lines 4 2026-05-05
DAL809 - 4 2026-07-03
DAL719 - 4 2026-07-07
DAL640 Delta Air Lines 4 2026-05-10
DAL560 - 4 2026-07-11
DAL2500 Delta Air Lines 4 2026-06-11
DAL2484 - 4 2026-07-20
DAL2205 Delta Air Lines 4 2026-06-02
DAL1928 - 4 2026-06-30
DAL1696 Delta Air Lines 4 2026-05-02
DAL1542 - 4 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2008 MSP → LAX Jul 26, 21:25 UTCJul 26, 22:25 UTC1h 0m
2026-07-26 DAL1226 SFO → MSP Jul 26, 14:00 UTCJul 26, 19:25 UTC5h 25m
2026-07-26 DAL1274 HPN → ATL Jul 26, 11:15 UTCJul 26, 12:00 UTC45m
2026-07-26 DAL1599 BDL → ATL Jul 26, 01:15 UTCJul 26, 01:50 UTC35m
2026-07-25 DAL941 RDU → LAS Jul 25, 19:33 UTCJul 25, 22:09 UTC2h 36m
2026-07-25 DAL941 RDU → LAS Jul 25, 19:35 UTCJul 25, 22:20 UTC2h 45m
2026-07-25 DAL868 LAS → DTW Jul 25, 14:20 UTCJul 25, 17:40 UTC3h 20m
2026-07-25 DAL868 LAS → DTW Jul 25, 14:16 UTCJul 25, 17:41 UTC3h 25m
2026-07-25 DAL1274 HPN → ATL Jul 25, 11:10 UTCJul 25, 11:55 UTC45m
2026-07-25 DAL1599 BDL → ATL Jul 25, 03:10 UTCJul 25, 03:45 UTC35m
2026-07-24 DAL2274 DTW → SFO Jul 24, 20:55 UTCJul 24, 23:35 UTC2h 40m
2026-07-24 DAL2274 DTW → SFO Jul 24, 16:45 UTCJul 24, 19:25 UTC2h 40m
2026-07-23 DAL55B FAI → MSP Jul 23, 19:20 UTCJul 24, 00:00 UTC4h 40m
2026-07-23 DAL1055 ATL → PBI Jul 23, 04:25 UTCJul 23, 07:50 UTC3h 25m
2026-07-22 DAL1055 ATL → PBI Jul 22, 23:20 UTCJul 23, 02:35 UTC3h 15m
2026-07-22 DAL2400 ATL → MSY Jul 22, 18:40 UTCJul 22, 21:50 UTC3h 10m
2026-07-22 DAL2400 ATL → MSY Jul 22, 18:39 UTCJul 22, 21:48 UTC3h 9m
2026-07-22 DAL2400 ATL → MSY Jul 22, 14:15 UTCJul 22, 17:00 UTC2h 45m
2026-07-22 DAL2872 JFK → MCO Jul 22, 11:10 UTCJul 22, 12:55 UTC1h 45m
2026-07-22 DAL2918 ORD → BOS Jul 22, 02:35 UTCJul 22, 04:25 UTC1h 50m
2026-07-21 DAL2843 LAS → SEA Jul 21, 21:20 UTCJul 21, 23:00 UTC1h 40m
2026-07-21 DAL2843 LAS → SEA Jul 21, 21:11 UTCJul 21, 22:56 UTC1h 45m
2026-07-21 DAL2843 LAS → SEA Jul 21, 18:00 UTCJul 21, 19:25 UTC1h 25m
2026-07-21 DAL2229 JFK → SFO Jul 21, 13:25 UTCJul 21, 16:25 UTC3h 0m
2026-07-20 DAL743 ATL → SMF Jul 20, 22:20 UTCJul 21, 02:25 UTC4h 4m
2026-07-20 DAL743 ATL → SMF Jul 20, 22:19 UTCJul 21, 02:21 UTC4h 2m
2026-07-20 DAL1757 - Jul 20, 19:30 UTCJul 20, 20:20 UTC50m
2026-07-20 DAL1757 - Jul 20, 17:05 UTCJul 20, 17:15 UTC10m
2026-07-20 DAL1757 SJU → ATL Jul 20, 17:03 UTCJul 20, 20:22 UTC3h 19m
2026-07-20 DAL1757 - Jul 20, 15:10 UTCJul 20, 15:25 UTC15m
2026-07-20 DAL1757 - Jul 20, 12:20 UTCJul 20, 13:35 UTC1h 15m
2026-07-20 DAL2484 - Jul 20, 02:50 UTCJul 20, 03:20 UTC30m
2026-07-20 DAL2484 - Jul 20, 01:10 UTCJul 20, 01:35 UTC25m
2026-07-19 DAL3013 ATL → IND Jul 19, 20:55 UTCJul 19, 22:10 UTC1h 15m
2026-07-19 DAL3013 ATL → IND Jul 19, 20:51 UTCJul 19, 22:09 UTC1h 18m
2026-07-19 DAL3013 ATL → IND Jul 19, 15:20 UTCJul 19, 16:25 UTC1h 5m
2026-07-19 DAL3076 MCI → ATL Jul 19, 12:25 UTCJul 19, 13:25 UTC1h 0m
2026-07-18 DAL558 BOS → SLC Jul 18, 18:56 UTCJul 18, 22:45 UTC3h 49m
2026-07-18 DAL558 BOS → SLC Jul 18, 18:55 UTCJul 18, 22:45 UTC3h 50m
2026-07-18 DAL2530 - Jul 18, 14:25 UTCJul 18, 16:40 UTC2h 15m
2026-07-18 DAL2672 ATL → DTW Jul 18, 03:45 UTCJul 18, 06:15 UTC2h 30m
2026-07-17 DAL871 SLC → SEA Jul 17, 23:25 UTCJul 18, 01:00 UTC1h 35m
2026-07-17 DAL871 SLC → SEA Jul 17, 23:25 UTCJul 18, 00:54 UTC1h 29m
2026-07-17 DAL1194 - Jul 17, 18:50 UTCJul 17, 20:10 UTC1h 20m
2026-07-17 DAL1095 - Jul 17, 15:55 UTCJul 17, 17:20 UTC1h 25m
2026-07-17 DAL2906 - Jul 17, 12:45 UTCJul 17, 14:10 UTC1h 25m
2026-07-17 DAL614 - Jul 17, 00:25 UTCJul 17, 00:55 UTC30m
2026-07-17 DAL614 CUN → LAX Jul 17, 00:21 UTCJul 17, 04:44 UTC4h 23m
2026-07-16 DAL615 - Jul 16, 18:44 UTCJul 16, 23:05 UTC4h 20m
2026-07-16 DAL553 LAS → LAX Jul 16, 14:05 UTCJul 16, 14:55 UTC50m

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 N854DN page for operator, model, and routing details .

Mode-S ABB68C frequently asked

What is Mode-S code ABB68C?
ABB68C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N854DN.
Where is Mode-S ABB68C registered?
Mode-S code ABB68C 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 ABB68C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB68C, octal 52733214, decimal 11,253,388.
What flights does ABB68C operate?
Mode-S ABB68C has broadcast 20 distinct callsigns, including DAL2071, DAL743, DAL3104, DAL2843, DAL2711.