Apparatus

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sensors Mode-S transponder

AB3133

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N820DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AB3133
Octal
52630463
Decimal
11,219,251
Country
US
Tail
N820DN
Type
B739
Broadcasting now · callsign DAL566 · 29,325 ft
Flights observed
458
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

AB3133 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB3133 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
DAL904 Delta Air Lines 11 2026-07-06
DAL2437 - 8 2026-06-28
DAL2400 - 7 2026-06-23
DAL2452 Delta Air Lines 5 2026-05-27
DAL1660 - 5 2026-07-08
DAL1431 Delta Air Lines 5 2026-05-30
DAL1057 - 5 2026-07-07
DAL874 Delta Air Lines 4 2026-05-16
DAL698 Delta Air Lines 4 2026-06-03
DAL689 Delta Air Lines 4 2026-06-06
DAL413 Delta Air Lines 4 2026-04-26
DAL2699 - 4 2026-07-14
DAL2545 - 4 2026-06-26
DAL2278 Delta Air Lines 4 2026-05-27
DAL1947 Delta Air Lines 4 2026-05-08
DAL1925 Delta Air Lines 4 2026-05-23
DAL1913 Delta Air Lines 4 2026-04-30
DAL1805 Delta Air Lines 4 2026-04-15
DAL1782 - 4 2026-06-30
DAL1188 Delta Air Lines 4 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL1039 MSP → ATL Jul 14, 12:15 UTCJul 14, 14:15 UTC2h 0m
2026-07-14 DAL2699 - Jul 14, 01:00 UTCJul 14, 03:00 UTC2h 0m
2026-07-13 DAL2699 MSP → RDU Jul 13, 19:35 UTCJul 13, 21:45 UTC2h 10m
2026-07-13 DAL2697 DTW → MSP Jul 13, 16:35 UTCJul 13, 17:55 UTC1h 20m
2026-07-13 DAL2697 DTW → MSP Jul 13, 16:35 UTCJul 13, 17:52 UTC1h 17m
2026-07-13 DAL2289 SLC → DTW Jul 13, 12:10 UTCJul 13, 15:15 UTC3h 5m
2026-07-13 DAL2652 SFO → SLC Jul 13, 02:55 UTCJul 13, 04:15 UTC1h 20m
2026-07-13 DAL2652 SFO → SLC Jul 13, 02:51 UTCJul 13, 04:10 UTC1h 19m
2026-07-12 DAL442 - Jul 12, 20:30 UTCJul 13, 00:50 UTC4h 20m
2026-07-12 DAL2236 - Jul 12, 16:01 UTCJul 12, 19:01 UTC3h 0m
2026-07-12 DAL1535 PHX → SLC Jul 12, 13:01 UTCJul 12, 14:15 UTC1h 15m
2026-07-12 DAL1535 PHX → SLC Jul 12, 13:00 UTCJul 12, 14:11 UTC1h 11m
2026-07-12 DAL2297 MSP → PHX Jul 12, 00:01 UTCJul 12, 02:40 UTC2h 40m
2026-07-11 DAL2297 MSP → PHX Jul 11, 23:57 UTCJul 12, 02:35 UTC2h 38m
2026-07-11 DAL2462 - Jul 11, 19:35 UTCJul 11, 22:01 UTC2h 25m
2026-07-11 DAL2462 VPS → MSP Jul 11, 19:33 UTCJul 11, 21:57 UTC2h 24m
2026-07-11 DAL2462 - Jul 11, 15:50 UTCJul 11, 17:50 UTC2h 0m
2026-07-11 DAL1678 MSP → MSP Jul 11, 03:40 UTCJul 11, 13:55 UTC10h 15m
2026-07-10 DAL2159 SFO → MSP Jul 10, 23:25 UTCJul 11, 02:30 UTC3h 5m
2026-07-10 DAL469 DTW → SFO Jul 10, 17:15 UTCJul 10, 22:00 UTC4h 45m
2026-07-10 DAL469 DTW → SFO Jul 10, 17:15 UTCJul 10, 21:56 UTC4h 41m
2026-07-09 DAL894 MSY → DTW Jul 9, 22:55 UTCJul 10, 00:55 UTC2h 0m
2026-07-09 DAL894 MSY → DTW Jul 9, 22:54 UTCJul 10, 00:57 UTC2h 3m
2026-07-09 DAL3146 ATL → MSY Jul 9, 20:42 UTCJul 9, 21:44 UTC1h 2m
2026-07-09 DAL3146 ATL → MSY Jul 9, 20:45 UTCJul 9, 21:50 UTC1h 5m
2026-07-09 DAL2755 ORF → ATL Jul 9, 17:00 UTCJul 9, 18:25 UTC1h 25m
2026-07-09 DAL2755 ATL → ORF Jul 9, 14:20 UTCJul 9, 15:35 UTC1h 15m
2026-07-09 DAL1524 STL → ATL Jul 9, 11:05 UTCJul 9, 12:20 UTC1h 15m
2026-07-09 DAL1403 ATL → STL Jul 9, 03:20 UTCJul 9, 04:35 UTC1h 15m
2026-07-09 DAL1403 ATL → STL Jul 9, 03:18 UTCJul 9, 04:35 UTC1h 17m
2026-07-08 DAL1660 - Jul 8, 22:45 UTCJul 9, 00:20 UTC1h 35m
2026-07-08 DAL1660 - Jul 8, 19:40 UTCJul 8, 21:20 UTC1h 40m
2026-07-08 DAL677 LAS → ATL Jul 8, 14:19 UTCJul 8, 17:51 UTC3h 32m
2026-07-08 DAL677 LAS → ATL Jul 8, 14:20 UTCJul 8, 17:50 UTC3h 30m
2026-07-08 DAL2653 - Jul 8, 04:45 UTCJul 8, 05:30 UTC45m
2026-07-08 DAL2288 LAS → LAX Jul 8, 02:15 UTCJul 8, 03:00 UTC45m
2026-07-08 DAL2288 LAS → LAX Jul 8, 02:14 UTCJul 8, 02:54 UTC40m
2026-07-07 DAL711 ATL → LAS Jul 7, 20:55 UTCJul 8, 00:30 UTC3h 35m
2026-07-07 DAL2710 YYZ → ATL Jul 7, 17:45 UTCJul 7, 19:25 UTC1h 40m
2026-07-07 DAL2883 ATL → YYZ Jul 7, 14:20 UTCJul 7, 15:55 UTC1h 35m
2026-07-07 DAL1445 SRQ → ATL Jul 7, 11:10 UTCJul 7, 12:20 UTC1h 10m
2026-07-07 DAL1057 ATL → SRQ Jul 7, 01:45 UTCJul 7, 02:50 UTC1h 5m
2026-07-07 DAL1057 ATL → SRQ Jul 7, 01:42 UTCJul 7, 02:48 UTC1h 6m
2026-07-06 DAL1816 - Jul 6, 20:35 UTCJul 6, 23:10 UTC2h 35m
2026-07-06 DAL1941 - Jul 6, 14:45 UTCJul 6, 17:25 UTC2h 40m
2026-07-06 DAL1941 ATL → PVR Jul 6, 14:44 UTCJul 6, 18:02 UTC3h 18m
2026-07-06 DAL1396 BOS → ATL Jul 6, 11:55 UTCJul 6, 12:55 UTC1h 0m
2026-07-06 DAL2701 - Jul 6, 03:50 UTCJul 6, 04:50 UTC1h 0m
2026-07-06 DAL904 BOS → LAX Jul 6, 01:40 UTCJul 6, 02:15 UTC35m
2026-07-05 DAL904 BOS → LAX Jul 5, 19:30 UTCJul 6, 00:25 UTC4h 55m

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 N820DN page for operator, model, and routing details .

Mode-S AB3133 frequently asked

What is Mode-S code AB3133?
AB3133 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N820DN.
Where is Mode-S AB3133 registered?
Mode-S code AB3133 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 AB3133 broadcasting right now?
Yes. Mode-S AB3133 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB3133, octal 52630463, decimal 11,219,251.
What flights does AB3133 operate?
Mode-S AB3133 has broadcast 20 distinct callsigns, including DAL904, DAL2437, DAL2400, DAL2452, DAL1660.