Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AAF4C8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N805DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AAF4C8
Octal
52572310
Decimal
11,203,784
Country
US
Tail
N805DN
Type
B739
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
415
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AAF4C8.

Country allocation

The ICAO 24-bit address AAF4C8 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
DAL1701 Delta Air Lines 6 2026-06-01
DAL2747 - 5 2026-06-19
DAL704 Delta Air Lines 4 2026-07-24
DAL2966 - 4 2026-07-07
DAL2755 Delta Air Lines 4 2026-04-26
DAL2289 - 4 2026-07-03
DAL1617 Delta Air Lines 4 2026-07-26
DAL1456 - 4 2026-07-15
DAL1188 - 4 2026-07-02
DAL1155 Delta Air Lines 4 2026-04-16
DAL904 Delta Air Lines 3 2026-06-26
DAL871 - 3 2026-07-14
DAL517 - 3 2026-07-11
DAL489 - 3 2026-07-03
DAL3196 Delta Air Lines 3 2026-07-26
DAL3168 Delta Air Lines 3 2026-04-20
DAL3157 Delta Air Lines 3 2026-04-17
DAL3126 Delta Air Lines 3 2026-04-19
DAL3019 - 3 2026-06-26
DAL2905 - 3 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL3169 CVG → ATL Jul 26, 20:35 UTCJul 26, 21:40 UTC1h 5m
2026-07-26 DAL3169 CVG → ATL Jul 26, 18:25 UTCJul 26, 19:20 UTC55m
2026-07-26 DAL3196 XNA → DTW Jul 26, 15:50 UTCJul 26, 17:00 UTC1h 10m
2026-07-26 DAL3196 XNA → DTW Jul 26, 12:25 UTCJul 26, 13:45 UTC1h 20m
2026-07-26 DAL3196 XNA → DTW Jul 26, 12:25 UTCJul 26, 13:35 UTC1h 10m
2026-07-26 DAL3018 GSO → ATL Jul 26, 09:35 UTCJul 26, 10:25 UTC50m
2026-07-26 DAL1617 ATL → BOS Jul 26, 01:55 UTCJul 26, 02:46 UTC51m
2026-07-26 DAL1617 ATL → BOS Jul 26, 01:55 UTCJul 26, 02:55 UTC1h 0m
2026-07-25 DAL1898 ATL → LIR Jul 25, 14:25 UTCJul 25, 23:10 UTC8h 45m
2026-07-25 DAL635 BOS → DFW Jul 25, 05:15 UTCJul 25, 08:50 UTC3h 35m
2026-07-25 DAL635 BOS → DFW Jul 25, 05:13 UTCJul 25, 08:47 UTC3h 34m
2026-07-24 DAL704 DAL → ATL Jul 24, 23:52 UTCJul 25, 03:51 UTC3h 59m
2026-07-24 DAL704 DAL → ATL Jul 24, 23:55 UTCJul 25, 03:45 UTC3h 50m
2026-07-24 DAL1805 SAP → ATL Jul 24, 19:07 UTCJul 24, 22:00 UTC2h 53m
2026-07-24 DAL1782 ATL → SAP Jul 24, 14:30 UTCJul 24, 21:55 UTC7h 25m
2026-07-24 DAL2441 PHL → DTW Jul 24, 09:40 UTCJul 24, 10:45 UTC1h 5m
2026-07-24 DAL2441 PHL → DTW Jul 24, 09:40 UTCJul 24, 10:44 UTC1h 4m
2026-07-24 DAL2395 ATL → CVG Jul 24, 05:20 UTCJul 24, 06:00 UTC40m
2026-07-24 DAL2395 ATL → CVG Jul 24, 05:17 UTCJul 24, 06:12 UTC55m
2026-07-23 DAL560 SFO → ATL Jul 23, 23:30 UTCJul 24, 03:30 UTC4h 0m
2026-07-23 DAL629 ATL → BOS Jul 23, 16:55 UTCJul 23, 21:35 UTC4h 40m
2026-07-23 DAL629 ATL → BOS Jul 23, 16:51 UTCJul 23, 21:32 UTC4h 41m
2026-07-23 DAL2232 DTW → GSP Jul 23, 14:25 UTCJul 23, 15:25 UTC1h 0m
2026-07-23 DAL2232 DTW → GSP Jul 23, 12:15 UTCJul 23, 13:05 UTC50m
2026-07-23 DAL567 LAS → BOS Jul 23, 05:40 UTCJul 23, 09:45 UTC4h 5m
2026-07-23 DAL2640 MCO → BOS Jul 23, 01:20 UTCJul 23, 03:20 UTC2h 0m
2026-07-22 DAL841 ATL → PDX Jul 22, 22:35 UTCJul 23, 00:05 UTC1h 30m
2026-07-22 DAL1194 DTW → EWR Jul 22, 19:45 UTCJul 22, 21:05 UTC1h 20m
2026-07-22 DAL1194 DTW → EWR Jul 22, 19:44 UTCJul 22, 21:05 UTC1h 21m
2026-07-22 DAL1095 LAX → JFK Jul 22, 16:15 UTCJul 22, 17:55 UTC1h 40m
2026-07-22 DAL2906 LAX → SLC Jul 22, 12:45 UTCJul 22, 14:10 UTC1h 25m
2026-07-22 DAL1197 BNA → BOS Jul 22, 05:05 UTCJul 22, 05:25 UTC20m
2026-07-22 DAL1244 LGA → ORD Jul 22, 00:30 UTCJul 22, 02:05 UTC1h 35m
2026-07-21 DAL1244 LGA → ORD Jul 21, 21:30 UTCJul 21, 22:55 UTC1h 25m
2026-07-21 DAL935 DTW → SLC Jul 21, 16:45 UTCJul 21, 20:10 UTC3h 25m
2026-07-21 DAL808 JFK → LAX Jul 21, 12:40 UTCJul 21, 15:05 UTC2h 25m
2026-07-20 DAL2433 MSP → CLT Jul 20, 23:30 UTCJul 21, 01:50 UTC2h 19m
2026-07-20 DAL2195 ATL → AVL Jul 20, 19:05 UTCJul 20, 21:30 UTC2h 25m
2026-07-20 DAL2195 ATL → AVL Jul 20, 15:05 UTCJul 20, 17:45 UTC2h 40m
2026-07-20 DAL2387 SJC → SEA Jul 20, 10:40 UTCJul 20, 13:00 UTC2h 20m
2026-07-20 DAL2387 SJC → SEA Jul 20, 10:40 UTCJul 20, 13:03 UTC2h 23m
2026-07-20 DAL2187 JFK → MCO Jul 20, 00:05 UTCJul 20, 03:05 UTC3h 0m
2026-07-19 DAL941 SEA → MSP Jul 19, 19:25 UTCJul 19, 22:00 UTC2h 35m
2026-07-19 DAL868 LAS → DTW Jul 19, 14:30 UTCJul 19, 18:00 UTC3h 30m
2026-07-19 DAL868 LAS → DTW Jul 19, 14:29 UTCJul 19, 17:56 UTC3h 27m
2026-07-19 DAL2791 PHL → MSP Jul 19, 10:40 UTCJul 19, 13:10 UTC2h 30m
2026-07-19 DAL2703 MSY → LGA Jul 19, 03:45 UTCJul 19, 03:50 UTC5m
2026-07-19 DAL2703 MSY → LGA Jul 19, 01:40 UTCJul 19, 03:40 UTC2h 0m
2026-07-17 DAL2696 TPA → MSP Jul 17, 22:55 UTCJul 18, 01:45 UTC2h 50m
2026-07-17 DAL2696 - Jul 17, 20:35 UTCJul 17, 21:30 UTC55m

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 N805DN page for operator, model, and routing details .

Mode-S AAF4C8 frequently asked

What is Mode-S code AAF4C8?
AAF4C8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N805DN.
Where is Mode-S AAF4C8 registered?
Mode-S code AAF4C8 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 AAF4C8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAF4C8, octal 52572310, decimal 11,203,784.
What flights does AAF4C8 operate?
Mode-S AAF4C8 has broadcast 20 distinct callsigns, including DAL1701, DAL2747, DAL704, DAL2966, DAL2755.