Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A452C4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N378NW · AIRBUS A-320 · operated by DELTA AIR LINES INC

Hex
A452C4
Octal
51051304
Decimal
10,769,092
Country
US
Tail
N378NW
Type
A320
No current signal · last broadcast 27d ago
Flights observed
347
Distinct callsigns
20
Country
US
Last broadcast
27d ago

Last known position

Most recent position reported by Mode-S A452C4.

Country allocation

The ICAO 24-bit address A452C4 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
DAL2062 Delta Air Lines 12 2026-04-26
DAL1676 Delta Air Lines 10 2026-06-12
DAL2511 Delta Air Lines 9 2026-06-14
DAL1682 Delta Air Lines 9 2026-06-01
DAL2902 Delta Air Lines 8 2026-06-13
DAL2047 - 8 2026-06-12
DAL832 Delta Air Lines 7 2026-06-08
DAL2749 Delta Air Lines 7 2026-05-02
DAL2462 Delta Air Lines 7 2026-04-25
DAL2254 Delta Air Lines 7 2026-04-25
DAL1509 Delta Air Lines 7 2026-06-15
DAL2945 Delta Air Lines 6 2026-06-01
DAL2679 Delta Air Lines 6 2026-04-19
DAL2479 Delta Air Lines 6 2026-06-09
DAL963 Delta Air Lines 5 2026-05-11
DAL775 Delta Air Lines 5 2026-05-15
DAL2566 Delta Air Lines 5 2026-04-30
DAL2135 Delta Air Lines 5 2026-05-11
DAL2010 Delta Air Lines 5 2026-06-07
DAL2009 Delta Air Lines 5 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-16 DAL9936 JFK → ATL Jun 16, 15:50 UTCJun 16, 18:45 UTC2h 55m
2026-06-16 DAL9936 JFK → ATL Jun 16, 15:45 UTCJun 16, 18:52 UTC3h 7m
2026-06-15 DAL2890 - Jun 15, 21:50 UTCJun 15, 23:25 UTC1h 35m
2026-06-15 DAL2890 - Jun 15, 18:29 UTCJun 15, 20:20 UTC1h 50m
2026-06-15 DAL2890 ATL → IAH Jun 15, 18:28 UTCJun 15, 20:14 UTC1h 46m
2026-06-15 DAL1509 HOU → ATL Jun 15, 15:25 UTCJun 15, 16:59 UTC1h 35m
2026-06-15 DAL1509 HOU → ATL Jun 15, 15:21 UTCJun 15, 16:57 UTC1h 36m
2026-06-15 DAL1509 HOU → ATL Jun 15, 12:19 UTCJun 15, 14:05 UTC1h 45m
2026-06-14 DAL2511 ATL → BOS Jun 14, 22:15 UTCJun 14, 22:45 UTC30m
2026-06-14 DAL2511 ATL → BOS Jun 14, 22:10 UTCJun 14, 22:45 UTC35m
2026-06-14 DAL2511 ATL → BOS Jun 14, 16:20 UTCJun 14, 18:45 UTC2h 25m
2026-06-14 DAL2511 ATL → BOS Jun 14, 13:25 UTCJun 14, 15:05 UTC1h 40m
2026-06-14 DAL2127 MSP → SLC Jun 14, 10:30 UTCJun 14, 11:50 UTC1h 20m
2026-06-13 DAL2902 IAD → ATL Jun 13, 22:30 UTCJun 13, 23:45 UTC1h 15m
2026-06-13 DAL2011 RSW → BOS Jun 13, 18:55 UTCJun 13, 20:40 UTC1h 45m
2026-06-13 DAL2011 RSW → BOS Jun 13, 18:54 UTCJun 13, 20:38 UTC1h 44m
2026-06-13 DAL2011 RSW → BOS Jun 13, 15:10 UTCJun 13, 17:00 UTC1h 50m
2026-06-13 DAL2691 GRB → ATL Jun 13, 10:55 UTCJun 13, 12:45 UTC1h 50m
2026-06-13 DAL2948 ATL → GRB Jun 13, 01:50 UTCJun 13, 03:35 UTC1h 45m
2026-06-12 DAL2047 ROC → ATL Jun 12, 22:20 UTCJun 13, 00:05 UTC1h 45m
2026-06-12 DAL2047 ATL → ROC Jun 12, 19:30 UTCJun 12, 21:05 UTC1h 35m
2026-06-12 DAL1676 SAT → ATL Jun 12, 16:05 UTCJun 12, 18:01 UTC1h 55m
2026-06-12 DAL1676 SAT → ATL Jun 12, 12:30 UTCJun 12, 14:30 UTC2h 0m
2026-06-12 DAL3162 DTW → MKE Jun 12, 10:25 UTCJun 12, 11:15 UTC50m
2026-06-12 DAL3074 ATL → MYR Jun 12, 02:55 UTCJun 12, 03:35 UTC40m
2026-06-11 DAL2690 - Jun 11, 23:35 UTCJun 12, 01:20 UTC1h 46m
2026-06-11 DAL2690 - Jun 11, 20:05 UTCJun 11, 21:50 UTC1h 45m
2026-06-11 DAL1676 SAT → ATL Jun 11, 15:55 UTCJun 11, 17:55 UTC2h 0m
2026-06-11 DAL1676 SAT → ATL Jun 11, 15:54 UTCJun 11, 17:50 UTC1h 56m
2026-06-11 DAL1676 SAT → ATL Jun 11, 12:35 UTCJun 11, 14:35 UTC2h 0m
2026-06-11 DAL3162 DTW → MKE Jun 11, 10:10 UTCJun 11, 11:00 UTC50m
2026-06-11 DAL3074 ATL → MYR Jun 11, 03:30 UTCJun 11, 04:10 UTC40m
2026-06-10 DAL2009 BOS → RSW Jun 10, 22:05 UTCJun 11, 00:05 UTC2h 0m
2026-06-10 DAL2009 BOS → RSW Jun 10, 17:55 UTCJun 10, 19:50 UTC1h 55m
2026-06-10 DAL1324 RSW → DTW Jun 10, 14:30 UTCJun 10, 15:45 UTC1h 15m
2026-06-10 DAL1324 RSW → DTW Jun 10, 12:00 UTCJun 10, 13:25 UTC1h 25m
2026-06-09 DAL2479 RDU → BOS Jun 9, 18:30 UTCJun 9, 20:45 UTC2h 15m
2026-06-09 DAL2479 RDU → BOS Jun 9, 14:40 UTCJun 9, 15:50 UTC1h 10m
2026-06-09 DAL2557 SNA → SEA Jun 9, 11:30 UTCJun 9, 13:10 UTC1h 40m
2026-06-09 DAL2051 SLC → OAK Jun 9, 01:15 UTCJun 9, 02:55 UTC1h 40m
2026-06-08 DAL1692 ATL → EGE Jun 8, 21:45 UTCJun 8, 23:20 UTC1h 35m
2026-06-08 DAL1692 ATL → EGE Jun 8, 21:44 UTCJun 8, 23:22 UTC1h 38m
2026-06-08 DAL1692 ATL → EGE Jun 8, 18:20 UTCJun 8, 20:05 UTC1h 45m
2026-06-08 DAL1479 MCO → LGA Jun 8, 14:25 UTCJun 8, 15:35 UTC1h 10m
2026-06-08 DAL1479 MCO → LGA Jun 8, 11:45 UTCJun 8, 12:55 UTC1h 10m
2026-06-08 DAL832 MIA → MSP Jun 8, 02:25 UTCJun 8, 03:40 UTC1h 15m
2026-06-08 DAL832 MIA → MSP Jun 8, 00:00 UTCJun 8, 01:20 UTC1h 20m
2026-06-07 DAL2537 BOS → RDU Jun 7, 20:40 UTCJun 7, 22:25 UTC1h 45m
2026-06-07 DAL1996 JFK → CUN Jun 7, 15:40 UTCJun 7, 17:05 UTC1h 25m
2026-06-07 DAL1157 ATL → CVG Jun 7, 12:10 UTCJun 7, 14:00 UTC1h 50m

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 N378NW page for operator, model, and routing details .

Mode-S A452C4 frequently asked

What is Mode-S code A452C4?
A452C4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N378NW.
Where is Mode-S A452C4 registered?
Mode-S code A452C4 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 A452C4 broadcasting right now?
No active broadcast right now. Last signal was 27d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A452C4, octal 51051304, decimal 10,769,092.
What flights does A452C4 operate?
Mode-S A452C4 has broadcast 20 distinct callsigns, including DAL2062, DAL1676, DAL2511, DAL1682, DAL2902.