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 3h ago
Flights observed
462
Distinct callsigns
20
Country
US
Last broadcast
3h ago

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
DAL1057 - 6 2026-06-17
DAL574 Delta Air Lines 5 2026-05-05
DAL481 - 5 2026-07-10
DAL2695 Delta Air Lines 5 2026-05-26
DAL2427 - 5 2026-06-12
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
DAL469 Delta Air Lines 4 2026-05-22
DAL2999 Delta Air Lines 4 2026-06-28
DAL2833 Delta Air Lines 4 2026-05-18
DAL2380 - 4 2026-06-22
DAL2369 Delta Air Lines 4 2026-05-21
DAL2161 Delta Air Lines 4 2026-05-20
DAL1165 - 4 2026-07-11
DAL966 Delta Air Lines 3 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL1355 - Jul 14, 00:40 UTCJul 14, 02:45 UTC2h 5m
2026-07-13 DAL618 CUN → DTW Jul 13, 19:10 UTCJul 13, 22:20 UTC3h 10m
2026-07-13 DAL619 - Jul 13, 13:15 UTCJul 13, 16:25 UTC3h 10m
2026-07-13 DAL1014 LGA → DTW Jul 13, 00:55 UTCJul 13, 02:05 UTC1h 10m
2026-07-12 DAL2732 MSP → LGA Jul 12, 20:45 UTCJul 12, 23:05 UTC2h 20m
2026-07-12 DAL2732 MSP → LGA Jul 12, 20:45 UTCJul 12, 23:05 UTC2h 20m
2026-07-12 DAL536 SEA → MSP Jul 12, 16:20 UTCJul 12, 19:05 UTC2h 45m
2026-07-11 DAL944 - Jul 11, 20:55 UTCJul 12, 01:05 UTC4h 10m
2026-07-11 DAL2236 - Jul 11, 16:00 UTCJul 11, 19:00 UTC3h 0m
2026-07-11 DAL1535 PHX → SLC Jul 11, 13:00 UTCJul 11, 14:15 UTC1h 15m
2026-07-11 DAL1496 - Jul 11, 05:01 UTCJul 11, 06:10 UTC1h 10m
2026-07-11 DAL1496 SLC → PHX Jul 11, 04:59 UTCJul 11, 06:10 UTC1h 11m
2026-07-11 DAL1165 - Jul 11, 01:15 UTCJul 11, 02:50 UTC1h 35m
2026-07-10 DAL481 ATL → SEA Jul 10, 19:00 UTCJul 10, 23:40 UTC4h 41m
2026-07-10 DAL481 ATL → SEA Jul 10, 18:58 UTCJul 10, 23:38 UTC4h 40m
2026-07-10 DAL570 - Jul 10, 13:30 UTCJul 10, 17:35 UTC4h 5m
2026-07-10 DAL2089 MSP → SFO Jul 10, 03:20 UTCJul 10, 06:55 UTC3h 35m
2026-07-09 DAL1456 - Jul 9, 23:30 UTCJul 10, 00:45 UTC1h 15m
2026-07-09 DAL1456 MSP → IND Jul 9, 21:00 UTCJul 9, 22:10 UTC1h 10m
2026-07-09 DAL2924 SLC → MSP Jul 9, 17:30 UTCJul 9, 19:30 UTC2h 0m
2026-07-09 DAL1176 BWI → SLC Jul 9, 11:20 UTCJul 9, 15:35 UTC4h 15m
2026-07-09 DAL2079 SLC → BWI Jul 9, 05:40 UTCJul 9, 09:45 UTC4h 5m
2026-07-09 DAL1483 - Jul 9, 02:20 UTCJul 9, 03:40 UTC1h 20m
2026-07-08 DAL2114 MSP → LAX Jul 8, 21:00 UTCJul 9, 00:25 UTC3h 25m
2026-07-08 DAL2924 SLC → MSP Jul 8, 17:22 UTCJul 8, 19:21 UTC1h 59m
2026-07-08 DAL2924 SLC → MSP Jul 8, 17:25 UTCJul 8, 19:25 UTC2h 0m
2026-07-08 DAL2628 MSP → SLC Jul 8, 13:20 UTCJul 8, 15:50 UTC2h 30m
2026-07-08 DAL1173 SLC → MSP Jul 8, 03:20 UTCJul 8, 05:15 UTC1h 55m
2026-07-08 DAL2311 - Jul 8, 00:15 UTCJul 8, 01:35 UTC1h 20m
2026-07-07 DAL908 - Jul 7, 18:35 UTCJul 7, 22:35 UTC4h 0m
2026-07-07 DAL2399 - Jul 7, 12:40 UTCJul 7, 16:35 UTC3h 55m
2026-07-07 DAL2399 LAX → DTW Jul 7, 12:40 UTCJul 7, 16:34 UTC3h 54m
2026-07-07 DAL2014 SDF → ATL Jul 7, 05:00 UTCJul 7, 06:25 UTC1h 25m
2026-07-07 DAL2014 SDF → ATL Jul 7, 04:59 UTCJul 7, 06:22 UTC1h 23m
2026-07-07 DAL1165 SEA → SLC Jul 7, 01:20 UTCJul 7, 03:00 UTC1h 40m
2026-07-07 DAL1165 SEA → SLC Jul 7, 01:20 UTCJul 7, 03:03 UTC1h 43m
2026-07-06 DAL481 ATL → SEA Jul 6, 18:59 UTCJul 6, 23:38 UTC4h 39m
2026-07-06 DAL481 ATL → SEA Jul 6, 19:00 UTCJul 6, 23:45 UTC4h 45m
2026-07-06 DAL2227 JFK → ATL Jul 6, 15:35 UTCJul 6, 17:35 UTC2h 0m
2026-07-05 DAL305 - Jul 5, 21:10 UTCJul 5, 23:35 UTC2h 25m
2026-07-05 DAL305 FLL → JFK Jul 5, 21:06 UTCJul 5, 23:35 UTC2h 29m
2026-07-05 DAL305 - Jul 5, 16:15 UTCJul 5, 18:35 UTC2h 20m
2026-07-05 DAL2428 SEA → SAN Jul 5, 12:20 UTCJul 5, 14:50 UTC2h 30m
2026-07-04 DAL2500 JFK → MIA Jul 4, 19:35 UTCJul 4, 22:10 UTC2h 35m
2026-07-04 DAL2042 - Jul 4, 15:20 UTCJul 4, 17:45 UTC2h 25m
2026-07-04 DAL2042 JFK → TPA Jul 4, 11:15 UTCJul 4, 13:30 UTC2h 15m
2026-07-03 DAL1643 AUS → JFK Jul 3, 23:25 UTCJul 4, 03:45 UTC4h 20m
2026-07-03 DAL1643 - Jul 3, 17:50 UTCJul 3, 21:05 UTC3h 15m
2026-07-03 DAL1411 AUS → JFK Jul 3, 12:45 UTCJul 3, 16:15 UTC3h 30m
2026-07-02 DAL1233 JFK → AUS Jul 2, 22:20 UTCJul 3, 01:30 UTC3h 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 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 3h ago.
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, DAL1057, DAL574, DAL481.