Apparatus

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sensors Mode-S transponder

A7CB53

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N601DT · AIRBUS A-321neo · operated by DELTA AIR LINES INC

Hex
A7CB53
Octal
51745523
Decimal
10,996,563
Country
US
Tail
N601DT
Type
A21N
Broadcasting now · callsign DAL899 · 33,000 ft
Flights observed
448
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Current position

A7CB53 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7CB53 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
DAL811 - 12 2026-07-12
DAL683 - 9 2026-07-14
DAL2033 - 9 2026-07-17
DAL892 - 8 2026-07-17
DAL749 - 8 2026-06-27
DAL393 - 8 2026-06-18
DAL756 - 7 2026-07-10
DAL2077 - 7 2026-07-03
DAL1090 - 7 2026-07-03
DAL745 Delta Air Lines 6 2026-07-20
DAL458 - 6 2026-06-16
DAL1024 Delta Air Lines 6 2026-04-20
DAL910 Delta Air Lines 5 2026-05-06
DAL538 Delta Air Lines 5 2026-05-06
DAL470 Delta Air Lines 5 2026-07-24
DAL457 Delta Air Lines 5 2026-04-21
DAL382 Delta Air Lines 5 2026-05-31
DAL336 Delta Air Lines 5 2026-04-22
DAL333 - 5 2026-06-16
DAL2170 Delta Air Lines 5 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2003 SLC → SFO Jul 26, 20:25 UTCJul 26, 22:45 UTC2h 20m
2026-07-26 DAL2027 SJC → SLC Jul 26, 16:30 UTCJul 26, 18:25 UTC1h 55m
2026-07-26 DAL2160 GRR → ATL Jul 26, 12:30 UTCJul 26, 14:00 UTC1h 30m
2026-07-25 DAL796 ATL → PHX Jul 25, 20:45 UTCJul 26, 00:25 UTC3h 40m
2026-07-25 DAL796 ATL → PHX Jul 25, 20:40 UTCJul 26, 00:06 UTC3h 26m
2026-07-25 DAL796 ATL → PHX Jul 25, 15:40 UTCJul 25, 18:45 UTC3h 5m
2026-07-24 DAL2053 DTW → ATL Jul 24, 23:20 UTCJul 25, 00:50 UTC1h 30m
2026-07-24 DAL2053 DTW → ATL Jul 24, 23:14 UTCJul 25, 00:46 UTC1h 32m
2026-07-24 DAL470 DTW → PWM Jul 24, 17:50 UTCJul 24, 21:20 UTC3h 30m
2026-07-24 DAL659 JFK → AUS Jul 24, 11:40 UTCJul 24, 15:15 UTC3h 35m
2026-07-23 DAL471 LAS → DTW Jul 23, 23:55 UTCJul 24, 04:00 UTC4h 5m
2026-07-23 DAL2914 MCI → ATL Jul 23, 20:00 UTCJul 23, 22:20 UTC2h 20m
2026-07-23 DAL384 JFK → SLC Jul 23, 12:25 UTCJul 23, 18:00 UTC5h 35m
2026-07-23 DAL865 BOS → LGA Jul 23, 03:00 UTCJul 23, 05:00 UTC2h 0m
2026-07-23 DAL865 BOS → LGA Jul 23, 02:57 UTCJul 23, 04:55 UTC1h 58m
2026-07-22 DAL906 SLC → BOS Jul 22, 19:55 UTCJul 22, 23:15 UTC3h 20m
2026-07-22 DAL906 SLC → BOS Jul 22, 19:53 UTCJul 22, 23:14 UTC3h 21m
2026-07-22 DAL1009 JFK → LAS Jul 22, 12:30 UTCJul 22, 16:55 UTC4h 25m
2026-07-22 DAL1672 LAS → SLC Jul 22, 00:10 UTCJul 22, 01:05 UTC55m
2026-07-21 DAL1672 SLC → LAS Jul 21, 21:55 UTCJul 21, 22:50 UTC55m
2026-07-21 DAL1009 JFK → LAS Jul 21, 13:45 UTCJul 21, 18:15 UTC4h 30m
2026-07-21 DAL1009 JFK → LAS Jul 21, 13:43 UTCJul 21, 18:13 UTC4h 30m
2026-07-21 DAL2038 MKE → ATL Jul 21, 07:25 UTCJul 21, 11:10 UTC3h 45m
2026-07-20 DAL745 SLC → BOS Jul 20, 23:25 UTCJul 21, 03:35 UTC4h 9m
2026-07-20 DAL745 SLC → BOS Jul 20, 17:15 UTCJul 20, 21:35 UTC4h 20m
2026-07-20 DAL859 BOS → SLC Jul 20, 11:15 UTCJul 20, 15:15 UTC4h 0m
2026-07-20 DAL859 BOS → SLC Jul 20, 10:35 UTCJul 20, 11:10 UTC35m
2026-07-19 DAL474 ATL → HNL Jul 19, 23:55 UTCJul 20, 04:15 UTC4h 20m
2026-07-19 DAL332 LAX → JFK Jul 19, 16:15 UTCJul 19, 22:06 UTC5h 51m
2026-07-19 DAL332 LAX → JFK Jul 19, 16:15 UTCJul 19, 19:40 UTC3h 25m
2026-07-19 DAL1697 AUS → BOS Jul 19, 06:10 UTCJul 19, 10:35 UTC4h 25m
2026-07-19 DAL1697 AUS → BOS Jul 19, 06:06 UTCJul 19, 10:32 UTC4h 26m
2026-07-18 DAL514 LGA → ATL Jul 18, 23:27 UTCJul 19, 04:27 UTC5h 0m
2026-07-18 DAL514 LGA → ATL Jul 18, 23:30 UTCJul 19, 04:30 UTC5h 0m
2026-07-18 DAL657 JFK → LAX Jul 18, 17:45 UTCJul 18, 21:40 UTC3h 55m
2026-07-18 DAL2674 LAS → SLC Jul 18, 13:10 UTCJul 18, 14:05 UTC55m
2026-07-18 DAL1662 SLC → LAS Jul 18, 05:45 UTCJul 18, 06:40 UTC55m
2026-07-18 DAL1662 SLC → LAS Jul 18, 05:43 UTCJul 18, 06:36 UTC53m
2026-07-17 DAL2033 EWR → SLC Jul 17, 22:15 UTCJul 18, 02:35 UTC4h 20m
2026-07-17 DAL2033 - Jul 17, 16:44 UTCJul 17, 20:35 UTC3h 50m
2026-07-17 DAL892 JFK → SLC Jul 17, 10:15 UTCJul 17, 14:30 UTC4h 15m
2026-07-17 DAL892 JFK → SLC Jul 17, 10:15 UTCJul 17, 14:27 UTC4h 12m
2026-07-16 DAL697 SLC → JFK Jul 16, 23:25 UTCJul 17, 03:34 UTC4h 10m
2026-07-16 DAL423 ATL → SLC Jul 16, 18:10 UTCJul 16, 21:19 UTC3h 10m
2026-07-16 DAL907 SLC → ATL Jul 16, 13:10 UTCJul 16, 16:30 UTC3h 20m
2026-07-15 DAL2033 - Jul 15, 23:10 UTCJul 16, 03:15 UTC4h 5m
2026-07-15 DAL2033 SLC → EWR Jul 15, 16:45 UTCJul 15, 20:40 UTC3h 55m
2026-07-15 DAL892 - Jul 15, 10:10 UTCJul 15, 14:30 UTC4h 20m
2026-07-14 DAL683 - Jul 14, 20:30 UTCJul 15, 01:40 UTC5h 9m
2026-07-14 DAL683 SAN → JFK Jul 14, 20:26 UTCJul 15, 01:32 UTC5h 6m

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 N601DT page for operator, model, and routing details .

Mode-S A7CB53 frequently asked

What is Mode-S code A7CB53?
A7CB53 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N601DT.
Where is Mode-S A7CB53 registered?
Mode-S code A7CB53 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 A7CB53 broadcasting right now?
Yes. Mode-S A7CB53 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7CB53, octal 51745523, decimal 10,996,563.
What flights does A7CB53 operate?
Mode-S A7CB53 has broadcast 20 distinct callsigns, including DAL811, DAL683, DAL2033, DAL892, DAL749.