Apparatus

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sensors Mode-S transponder

AB3C58

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N823DN · BOEING 737-900 · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
AB3C58
Octal
52636130
Decimal
11,222,104
Country
US
Tail
N823DN
Type
B739
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
471
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S AB3C58.

Country allocation

The ICAO 24-bit address AB3C58 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
DAL539 Delta Air Lines 6 2026-07-19
DAL3109 - 6 2026-07-17
DAL903 Delta Air Lines 5 2026-07-18
DAL3019 Delta Air Lines 5 2026-07-26
DAL2978 - 5 2026-07-17
DAL2951 - 5 2026-07-03
DAL2735 - 5 2026-07-13
DAL2415 - 5 2026-06-30
DAL1147 Delta Air Lines 5 2026-07-01
DAL1008 - 5 2026-07-03
DAL2739 - 4 2026-07-02
DAL2651 - 4 2026-07-15
DAL2329 - 4 2026-07-04
DAL2208 Delta Air Lines 4 2026-07-22
DAL1713 Delta Air Lines 4 2026-07-25
DAL1693 Delta Air Lines 4 2026-06-05
DAL1468 Delta Air Lines 4 2026-07-23
DAL943 - 3 2026-07-15
DAL689 Delta Air Lines 3 2026-06-02
DAL578 - 3 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2700 BDL → ATL Jul 26, 21:10 UTCJul 26, 22:00 UTC50m
2026-07-26 DAL2700 BDL → ATL Jul 26, 18:25 UTCJul 26, 19:40 UTC1h 15m
2026-07-26 DAL2356 SFO → SLC Jul 26, 16:05 UTCJul 26, 16:50 UTC45m
2026-07-26 DAL2356 SFO → SLC Jul 26, 14:00 UTCJul 26, 14:45 UTC45m
2026-07-26 DAL3019 PNS → ATL Jul 26, 11:15 UTCJul 26, 12:15 UTC1h 0m
2026-07-26 DAL3019 PNS → ATL Jul 26, 11:11 UTCJul 26, 12:20 UTC1h 9m
2026-07-26 DAL3021 ATL → PNS Jul 26, 01:40 UTCJul 26, 02:20 UTC40m
2026-07-25 DAL1002 ATL → ELP Jul 25, 21:00 UTCJul 25, 23:40 UTC2h 40m
2026-07-25 DAL1002 ATL → ELP Jul 25, 16:20 UTCJul 25, 18:35 UTC2h 15m
2026-07-25 DAL1741 ELP → ATL Jul 25, 12:25 UTCJul 25, 14:55 UTC2h 30m
2026-07-25 DAL1713 ATL → ELP Jul 25, 06:10 UTCJul 25, 06:35 UTC25m
2026-07-25 DAL1713 ATL → ELP Jul 25, 04:20 UTCJul 25, 04:35 UTC15m
2026-07-25 DAL1713 ATL → ELP Jul 25, 01:10 UTCJul 25, 03:25 UTC2h 15m
2026-07-24 DAL1480 ATL → BOS Jul 24, 21:45 UTCJul 24, 23:30 UTC1h 45m
2026-07-24 DAL1520 DTW → ORD Jul 24, 15:50 UTCJul 24, 18:25 UTC2h 35m
2026-07-24 DAL2347 RDU → BOS Jul 24, 11:30 UTCJul 24, 14:00 UTC2h 30m
2026-07-23 DAL2604 JFK → ORD Jul 23, 22:20 UTCJul 23, 23:40 UTC1h 20m
2026-07-23 DAL1468 DTW → MIA Jul 23, 17:55 UTCJul 23, 20:30 UTC2h 35m
2026-07-23 DAL1468 DTW → MIA Jul 23, 13:45 UTCJul 23, 16:15 UTC2h 30m
2026-07-23 DAL810 SEA → BOS Jul 23, 06:55 UTCJul 23, 10:25 UTC3h 30m
2026-07-23 DAL881 LAX → CVG Jul 23, 00:05 UTCJul 23, 03:25 UTC3h 20m
2026-07-23 DAL881 LAX → CVG Jul 23, 00:02 UTCJul 23, 03:25 UTC3h 23m
2026-07-22 DAL2208 MSP → JFK Jul 22, 19:10 UTCJul 22, 21:45 UTC2h 35m
2026-07-22 DAL2208 MSP → JFK Jul 22, 14:40 UTCJul 22, 17:20 UTC2h 40m
2026-07-22 DAL2221 PHL → MSP Jul 22, 11:10 UTCJul 22, 12:50 UTC1h 40m
2026-07-22 DAL1144 MSP → GEG Jul 22, 01:40 UTCJul 22, 03:50 UTC2h 10m
2026-07-21 DAL2981 TPA → BOS Jul 21, 21:50 UTCJul 22, 00:00 UTC2h 10m
2026-07-21 DAL2711 - Jul 21, 18:45 UTCJul 21, 20:20 UTC1h 35m
2026-07-21 DAL2711 BWI → ATL Jul 21, 18:43 UTCJul 21, 20:15 UTC1h 32m
2026-07-21 DAL2711 ATL → BWI Jul 21, 15:40 UTCJul 21, 17:05 UTC1h 25m
2026-07-21 DAL2988 HPN → ATL Jul 21, 12:10 UTCJul 21, 13:55 UTC1h 45m
2026-07-21 DAL2988 HPN → ATL Jul 21, 12:09 UTCJul 21, 13:52 UTC1h 43m
2026-07-21 DAL2669 SLC → GEG Jul 21, 00:05 UTCJul 21, 01:55 UTC1h 50m
2026-07-20 DAL2545 - Jul 20, 20:45 UTCJul 20, 22:00 UTC1h 15m
2026-07-20 DAL2545 ATL → CLE Jul 20, 17:50 UTCJul 20, 19:10 UTC1h 20m
2026-07-20 DAL1688 ABQ → ATL Jul 20, 13:25 UTCJul 20, 16:10 UTC2h 45m
2026-07-20 DAL1688 ABQ → ATL Jul 20, 13:24 UTCJul 20, 16:07 UTC2h 43m
2026-07-20 DAL1531 IAH → LGA Jul 20, 01:15 UTCJul 20, 03:50 UTC2h 35m
2026-07-19 DAL539 ATL → PDX Jul 19, 19:35 UTCJul 19, 23:45 UTC4h 10m
2026-07-19 DAL539 ATL → PDX Jul 19, 13:40 UTCJul 19, 18:05 UTC4h 25m
2026-07-19 DAL1504 BOS → JAX Jul 19, 10:00 UTCJul 19, 11:05 UTC1h 5m
2026-07-19 DAL1351 - Jul 19, 02:50 UTCJul 19, 04:10 UTC1h 20m
2026-07-19 DAL1351 ATL → PIT Jul 19, 02:51 UTCJul 19, 04:06 UTC1h 15m
2026-07-18 DAL2714 BUF → BOS Jul 18, 23:11 UTCJul 19, 00:49 UTC1h 38m
2026-07-18 DAL2714 BUF → BOS Jul 18, 23:15 UTCJul 19, 00:55 UTC1h 40m
2026-07-18 DAL1734 ATL → YYZ Jul 18, 19:05 UTCJul 18, 21:00 UTC1h 55m
2026-07-18 DAL1734 ATL → YYZ Jul 18, 19:05 UTCJul 18, 20:54 UTC1h 49m
2026-07-18 DAL569 ATL → LGA Jul 18, 13:05 UTCJul 18, 17:20 UTC4h 15m
2026-07-18 DAL903 LGA → IAH Jul 18, 02:45 UTCJul 18, 07:20 UTC4h 36m
2026-07-17 DAL3109 - Jul 17, 22:49 UTCJul 18, 00:15 UTC1h 25m

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 N823DN page for operator, model, and routing details .

Mode-S AB3C58 frequently asked

What is Mode-S code AB3C58?
AB3C58 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N823DN.
Where is Mode-S AB3C58 registered?
Mode-S code AB3C58 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 AB3C58 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB3C58, octal 52636130, decimal 11,222,104.
What flights does AB3C58 operate?
Mode-S AB3C58 has broadcast 20 distinct callsigns, including DAL539, DAL3109, DAL903, DAL3019, DAL2978.