Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AC058A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N874DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AC058A
Octal
53002612
Decimal
11,273,610
Country
US
Tail
N874DN
Type
B739
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
521
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AC058A.

Country allocation

The ICAO 24-bit address AC058A 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
DAL3109 - 8 2026-06-19
DAL3104 Delta Air Lines 6 2026-04-23
DAL2369 Delta Air Lines 6 2026-07-21
DAL1057 - 6 2026-06-17
DAL574 Delta Air Lines 5 2026-05-05
DAL481 - 5 2026-07-10
DAL469 - 5 2026-07-14
DAL2695 Delta Air Lines 5 2026-05-26
DAL2427 - 5 2026-06-12
DAL2399 Delta Air Lines 5 2026-07-23
DAL2159 - 5 2026-07-14
DAL199 Delta Air Lines 5 2026-05-03
DAL198 Delta Air Lines 5 2026-05-03
DAL1445 - 5 2026-06-17
DAL714 Delta Air Lines 4 2026-04-15
DAL536 - 4 2026-07-12
DAL2999 Delta Air Lines 4 2026-06-28
DAL2833 Delta Air Lines 4 2026-05-18
DAL2437 Delta Air Lines 4 2026-07-21
DAL2380 - 4 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1542 ATL → CVG Jul 26, 20:05 UTCJul 26, 22:30 UTC2h 25m
2026-07-26 DAL1730 DTW → ALB Jul 26, 15:30 UTCJul 26, 18:25 UTC2h 55m
2026-07-26 DAL1730 DTW → ALB Jul 26, 11:15 UTCJul 26, 13:45 UTC2h 30m
2026-07-26 DAL2284 ATL → LAX Jul 26, 00:05 UTCJul 26, 03:05 UTC3h 0m
2026-07-25 DAL2284 ATL → LAX Jul 25, 19:35 UTCJul 25, 22:45 UTC3h 10m
2026-07-25 DAL2284 ATL → LAX Jul 25, 19:34 UTCJul 25, 22:27 UTC2h 53m
2026-07-25 DAL2916 SLC → MSP Jul 25, 14:40 UTCJul 25, 16:45 UTC2h 5m
2026-07-25 DAL2916 SLC → MSP Jul 25, 14:39 UTCJul 25, 16:39 UTC2h 0m
2026-07-25 DAL2046 LAS → SEA Jul 25, 05:25 UTCJul 25, 13:00 UTC7h 35m
2026-07-25 DAL1451 SEA → LAX Jul 25, 02:20 UTCJul 25, 03:30 UTC1h 10m
2026-07-24 DAL1451 SEA → LAX Jul 24, 23:40 UTCJul 25, 00:55 UTC1h 15m
2026-07-24 DAL1423 MSN → DTW Jul 24, 20:40 UTCJul 24, 21:55 UTC1h 15m
2026-07-24 DAL1423 MSN → DTW Jul 24, 17:50 UTCJul 24, 19:05 UTC1h 15m
2026-07-24 DAL698 DTW → SLC Jul 24, 12:35 UTCJul 24, 15:55 UTC3h 20m
2026-07-23 DAL894 SAN → ATL Jul 23, 22:15 UTCJul 24, 00:20 UTC2h 5m
2026-07-23 DAL1652 MIA → LGA Jul 23, 18:30 UTCJul 23, 20:25 UTC1h 55m
2026-07-23 DAL2399 CAE → ATL Jul 23, 12:45 UTCJul 23, 16:30 UTC3h 45m
2026-07-23 DAL2399 CAE → ATL Jul 23, 12:41 UTCJul 23, 16:28 UTC3h 47m
2026-07-23 DAL2854 BOS → MCO Jul 23, 03:45 UTCJul 23, 06:15 UTC2h 30m
2026-07-23 DAL2854 BOS → MCO Jul 23, 03:45 UTCJul 23, 05:58 UTC2h 13m
2026-07-22 DAL944 MSP → SJC Jul 22, 21:00 UTCJul 23, 01:20 UTC4h 20m
2026-07-22 DAL944 MSP → SJC Jul 22, 20:56 UTCJul 23, 01:13 UTC4h 17m
2026-07-22 DAL1519 MSP → DEN Jul 22, 18:00 UTCJul 22, 19:15 UTC1h 15m
2026-07-22 DAL2791 PHL → MSP Jul 22, 13:55 UTCJul 22, 16:20 UTC2h 25m
2026-07-22 DAL2703 MSY → LGA Jul 22, 02:20 UTCJul 22, 04:15 UTC1h 55m
2026-07-21 DAL2437 PDX → SLC Jul 21, 21:40 UTCJul 21, 23:55 UTC2h 15m
2026-07-21 DAL2437 PDX → SLC Jul 21, 17:30 UTCJul 21, 20:15 UTC2h 45m
2026-07-21 DAL2369 ATL → BNA Jul 21, 13:10 UTCJul 21, 15:55 UTC2h 45m
2026-07-21 DAL2369 ATL → BNA Jul 21, 13:05 UTCJul 21, 15:51 UTC2h 46m
2026-07-20 DAL2008 MSP → LAX Jul 20, 21:20 UTCJul 21, 00:40 UTC3h 19m
2026-07-20 DAL1226 MSP → MSP Jul 20, 14:20 UTCJul 20, 19:55 UTC5h 35m
2026-07-20 DAL1274 - Jul 20, 11:05 UTCJul 20, 12:20 UTC1h 15m
2026-07-20 DAL1599 MSP → MSN Jul 20, 03:05 UTCJul 20, 03:35 UTC30m
2026-07-19 DAL402 LGA → ATL Jul 19, 22:20 UTCJul 20, 01:30 UTC3h 10m
2026-07-19 DAL402 LGA → ATL Jul 19, 18:05 UTCJul 19, 20:50 UTC2h 45m
2026-07-19 DAL2916 SLC → MSP Jul 19, 14:20 UTCJul 19, 16:25 UTC2h 5m
2026-07-18 DAL1117 BOS → MSP Jul 18, 13:30 UTCJul 18, 15:00 UTC1h 30m
2026-07-18 DAL1117 BOS → MSP Jul 18, 13:31 UTCJul 18, 15:02 UTC1h 31m
2026-07-18 DAL1202 SLC → SAN Jul 18, 05:00 UTCJul 18, 06:30 UTC1h 30m
2026-07-18 DAL1202 SLC → SAN Jul 18, 04:59 UTCJul 18, 06:24 UTC1h 25m
2026-07-17 DAL2022 SDF → ATL Jul 17, 23:05 UTCJul 18, 03:15 UTC4h 11m
2026-07-17 DAL2022 SDF → ATL Jul 17, 17:44 UTCJul 17, 21:39 UTC3h 55m
2026-07-17 DAL2023 PHL → SLC Jul 17, 11:39 UTCJul 17, 15:40 UTC4h 0m
2026-07-17 DAL2075 SLC → PHL Jul 17, 06:10 UTCJul 17, 10:00 UTC3h 50m
2026-07-17 DAL2209 BNA → SLC Jul 17, 01:09 UTCJul 17, 04:04 UTC2h 55m
2026-07-16 DAL449 - Jul 16, 19:35 UTCJul 16, 23:20 UTC3h 45m
2026-07-16 DAL1071 LAS → LAX Jul 16, 17:00 UTCJul 16, 17:49 UTC50m
2026-07-16 DAL2253 - Jul 16, 14:25 UTCJul 16, 15:10 UTC45m
2026-07-16 DAL769 - Jul 16, 00:40 UTCJul 16, 04:10 UTC3h 30m
2026-07-15 DAL2205 SLC → BNA Jul 15, 19:50 UTCJul 15, 22:50 UTC3h 0m

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 N874DN page for operator, model, and routing details .

Mode-S AC058A frequently asked

What is Mode-S code AC058A?
AC058A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N874DN.
Where is Mode-S AC058A registered?
Mode-S code AC058A 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 AC058A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC058A, octal 53002612, decimal 11,273,610.
What flights does AC058A operate?
Mode-S AC058A has broadcast 20 distinct callsigns, including DAL3109, DAL3104, DAL2369, DAL1057, DAL574.