Apparatus

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sensors Mode-S transponder

AB313C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N820DX · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
AB313C
Octal
52630474
Decimal
11,219,260
Country
US
Tail
N820DX
Type
B752
No current signal · last broadcast 1d ago
Flights observed
383
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AB313C.

Country allocation

The ICAO 24-bit address AB313C 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
DAL1747 - 22 2026-07-11
DAL260 Delta Air Lines 15 2026-06-27
DAL2284 Delta Air Lines 15 2026-06-05
DAL2059 - 15 2026-07-11
DAL1134 - 14 2026-07-10
DAL1048 - 12 2026-06-27
DAL261 Delta Air Lines 9 2026-06-27
DAL1348 Delta Air Lines 9 2026-05-07
DAL1240 Delta Air Lines 9 2026-05-03
DAL759 - 8 2026-06-17
DAL651 - 8 2026-07-07
DAL2960 Delta Air Lines 8 2026-06-05
DAL2486 Delta Air Lines 8 2026-05-31
DAL2171 Delta Air Lines 8 2026-07-04
DAL1587 - 8 2026-06-29
DAL2080 Delta Air Lines 7 2026-05-06
DAL1005 - 7 2026-07-05
DAL664 Delta Air Lines 6 2026-05-05
DAL2188 - 6 2026-07-05
DAL1733 Delta Air Lines 6 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL9887 - Jul 13, 09:00 UTCJul 13, 09:20 UTC20m
2026-07-13 DAL9887 - Jul 13, 03:45 UTCJul 13, 04:35 UTC50m
2026-07-12 DAL2654 ATL → MSP Jul 12, 23:45 UTCJul 13, 01:45 UTC2h 0m
2026-07-12 DAL927 - Jul 12, 21:10 UTCJul 12, 21:45 UTC35m
2026-07-12 DAL927 BHM → ATL Jul 12, 21:06 UTCJul 12, 21:40 UTC34m
2026-07-12 DAL927 - Jul 12, 16:01 UTCJul 12, 20:01 UTC4h 0m
2026-07-11 DAL544 - Jul 11, 22:50 UTCJul 12, 02:15 UTC3h 25m
2026-07-11 DAL1747 - Jul 11, 18:45 UTCJul 11, 20:55 UTC2h 10m
2026-07-11 DAL1747 MCO → DTW Jul 11, 18:44 UTCJul 11, 20:53 UTC2h 9m
2026-07-11 DAL1747 - Jul 11, 14:45 UTCJul 11, 17:00 UTC2h 15m
2026-07-11 DAL2059 - Jul 11, 06:40 UTCJul 11, 12:30 UTC5h 50m
2026-07-10 DAL1134 - Jul 10, 22:50 UTCJul 11, 05:01 UTC6h 10m
2026-07-10 DAL1747 - Jul 10, 18:40 UTCJul 10, 20:50 UTC2h 10m
2026-07-10 DAL1747 MCO → DTW Jul 10, 18:36 UTCJul 10, 20:50 UTC2h 14m
2026-07-10 DAL1747 - Jul 10, 15:05 UTCJul 10, 17:05 UTC2h 0m
2026-07-10 DAL2059 ANC → DTW Jul 10, 06:55 UTCJul 10, 12:35 UTC5h 40m
2026-07-09 DAL1134 - Jul 9, 23:00 UTCJul 10, 05:05 UTC6h 5m
2026-07-09 DAL1134 DTW → ANC Jul 9, 22:59 UTCJul 10, 05:04 UTC6h 5m
2026-07-09 DAL1747 MCO → DTW Jul 9, 18:30 UTCJul 9, 20:35 UTC2h 5m
2026-07-09 DAL1747 - Jul 9, 14:50 UTCJul 9, 16:50 UTC2h 0m
2026-07-09 DAL2059 - Jul 9, 06:55 UTCJul 9, 07:40 UTC45m
2026-07-09 DAL2059 ANC → DTW Jul 9, 06:55 UTCJul 9, 12:45 UTC5h 50m
2026-07-08 DAL1134 - Jul 8, 23:20 UTCJul 9, 05:20 UTC6h 0m
2026-07-08 DAL1134 DTW → ANC Jul 8, 23:16 UTCJul 9, 05:29 UTC6h 13m
2026-07-08 DAL1747 MCO → DTW Jul 8, 19:15 UTCJul 8, 21:25 UTC2h 10m
2026-07-08 DAL1747 - Jul 8, 15:50 UTCJul 8, 17:50 UTC2h 0m
2026-07-08 DAL2059 ANC → DTW Jul 8, 08:30 UTCJul 8, 14:20 UTC5h 50m
2026-07-08 DAL1134 - Jul 8, 01:00 UTCJul 8, 07:05 UTC6h 5m
2026-07-08 DAL1134 DTW → ANC Jul 8, 00:55 UTCJul 8, 07:19 UTC6h 24m
2026-07-07 DAL1747 MCO → DTW Jul 7, 18:25 UTCJul 7, 20:25 UTC2h 0m
2026-07-07 DAL1747 - Jul 7, 14:50 UTCJul 7, 17:00 UTC2h 10m
2026-07-07 DAL651 - Jul 7, 02:25 UTCJul 7, 03:45 UTC1h 20m
2026-07-06 DAL2053 - Jul 6, 22:55 UTCJul 7, 00:25 UTC1h 30m
2026-07-06 DAL1747 MCO → DTW Jul 6, 19:00 UTCJul 6, 21:00 UTC2h 0m
2026-07-06 DAL1747 - Jul 6, 14:55 UTCJul 6, 17:30 UTC2h 35m
2026-07-06 DAL651 ATL → DTW Jul 6, 03:55 UTCJul 6, 05:15 UTC1h 20m
2026-07-06 DAL2053 - Jul 6, 00:30 UTCJul 6, 01:55 UTC1h 25m
2026-07-05 DAL1005 ATL → DTW Jul 5, 20:28 UTCJul 5, 21:57 UTC1h 29m
2026-07-05 DAL1005 - Jul 5, 20:30 UTCJul 5, 22:05 UTC1h 35m
2026-07-05 DAL2188 - Jul 5, 17:25 UTCJul 5, 18:50 UTC1h 25m
2026-07-04 DAL2171 FLL → CVG Jul 4, 19:35 UTCJul 4, 23:15 UTC3h 40m
2026-07-04 DAL2171 FLL → CVG Jul 4, 13:30 UTCJul 4, 17:50 UTC4h 20m
2026-07-04 DAL1005 ATL → DTW Jul 4, 01:05 UTCJul 4, 02:35 UTC1h 30m
2026-07-02 DAL2188 - Jul 2, 17:10 UTCJul 2, 18:40 UTC1h 30m
2026-07-02 DAL2188 DTW → ATL Jul 2, 17:06 UTCJul 2, 18:35 UTC1h 29m
2026-07-02 DAL2059 ANC → DTW Jul 2, 07:50 UTCJul 2, 13:30 UTC5h 40m
2026-07-02 DAL2059 ANC → DTW Jul 2, 07:46 UTCJul 2, 13:30 UTC5h 44m
2026-07-01 DAL1134 - Jul 1, 23:15 UTCJul 2, 05:10 UTC5h 55m
2026-07-01 DAL1747 - Jul 1, 18:30 UTCJul 1, 20:40 UTC2h 10m
2026-07-01 DAL1747 - Jul 1, 14:50 UTCJul 1, 17:00 UTC2h 10m

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 N820DX page for operator, model, and routing details .

Mode-S AB313C frequently asked

What is Mode-S code AB313C?
AB313C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N820DX.
Where is Mode-S AB313C registered?
Mode-S code AB313C 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 AB313C broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB313C, octal 52630474, decimal 11,219,260.
What flights does AB313C operate?
Mode-S AB313C has broadcast 20 distinct callsigns, including DAL1747, DAL260, DAL2284, DAL2059, DAL1134.