Apparatus

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sensors Mode-S transponder

AAFFED

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N808DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AAFFED
Octal
52577755
Decimal
11,206,637
Country
US
Tail
N808DN
Type
B739
Broadcasting now · callsign DAL635 · 35,000 ft
Flights observed
449
Distinct callsigns
20
Country
US
Last broadcast
40m ago

Current position

AAFFED is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AAFFED 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
DAL2233 - 8 2026-07-02
DAL539 Delta Air Lines 7 2026-06-16
DAL2894 - 6 2026-07-11
DAL2195 Delta Air Lines 6 2026-05-09
DAL2078 Delta Air Lines 6 2026-04-14
DAL3119 - 5 2026-07-12
DAL2484 Delta Air Lines 5 2026-06-05
DAL2427 Delta Air Lines 5 2026-06-02
DAL1976 - 5 2026-07-01
DAL937 Delta Air Lines 4 2026-04-26
DAL3076 - 4 2026-06-29
DAL3013 - 4 2026-06-25
DAL2946 Delta Air Lines 4 2026-05-03
DAL2908 - 4 2026-07-12
DAL2418 Delta Air Lines 4 2026-04-16
DAL1964 Delta Air Lines 4 2026-06-05
DAL1938 - 4 2026-07-01
DAL1401 Delta Air Lines 4 2026-04-13
DAL796 Delta Air Lines 3 2026-06-10
DAL674 - 3 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL635 - Jul 14, 06:00 UTCJul 14, 07:15 UTC1h 15m
2026-07-14 DAL704 - Jul 14, 00:45 UTCJul 14, 04:25 UTC3h 40m
2026-07-13 DAL1443 - Jul 13, 21:00 UTCJul 13, 22:30 UTC1h 30m
2026-07-13 DAL1443 - Jul 13, 17:30 UTCJul 13, 19:05 UTC1h 35m
2026-07-13 DAL1500 - Jul 13, 14:30 UTCJul 13, 15:50 UTC1h 20m
2026-07-13 DAL1500 ATL → CLE Jul 13, 11:35 UTCJul 13, 12:50 UTC1h 15m
2026-07-13 DAL3055 - Jul 13, 09:20 UTCJul 13, 10:00 UTC40m
2026-07-13 DAL2850 - Jul 13, 06:20 UTCJul 13, 07:05 UTC45m
2026-07-13 DAL3115 SRQ → ATL Jul 13, 02:05 UTCJul 13, 03:15 UTC1h 10m
2026-07-12 DAL3115 ATL → SRQ Jul 12, 23:55 UTCJul 13, 01:10 UTC1h 15m
2026-07-12 DAL2908 - Jul 12, 21:35 UTCJul 12, 22:10 UTC35m
2026-07-12 DAL2908 BHM → ATL Jul 12, 21:34 UTCJul 12, 22:09 UTC35m
2026-07-12 DAL2908 - Jul 12, 17:30 UTCJul 12, 19:35 UTC2h 5m
2026-07-12 DAL2908 - Jul 12, 14:20 UTCJul 12, 15:55 UTC1h 35m
2026-07-12 DAL2302 - Jul 12, 11:20 UTCJul 12, 12:25 UTC1h 5m
2026-07-12 DAL3119 ATL → CVG Jul 12, 00:43 UTCJul 12, 01:36 UTC53m
2026-07-12 DAL3119 - Jul 12, 00:45 UTCJul 12, 01:35 UTC50m
2026-07-11 DAL2894 - Jul 11, 22:05 UTCJul 11, 22:55 UTC50m
2026-07-11 DAL2894 MEM → ATL Jul 11, 22:06 UTCJul 11, 23:01 UTC55m
2026-07-11 DAL2894 - Jul 11, 19:00 UTCJul 11, 21:00 UTC2h 0m
2026-07-11 DAL2894 ATL → ORD Jul 11, 15:40 UTCJul 11, 17:25 UTC1h 45m
2026-07-11 DAL2184 - Jul 11, 12:40 UTCJul 11, 13:40 UTC1h 0m
2026-07-11 DAL3082 ATL → LEX Jul 11, 01:05 UTCJul 11, 01:55 UTC50m
2026-07-10 DAL1962 CUN → ATL Jul 10, 20:55 UTCJul 10, 23:00 UTC2h 5m
2026-07-10 DAL592 ATL → CUN Jul 10, 17:20 UTCJul 10, 19:25 UTC2h 5m
2026-07-10 DAL3100 - Jul 10, 14:40 UTCJul 10, 15:15 UTC35m
2026-07-10 DAL3100 - Jul 10, 12:45 UTCJul 10, 13:10 UTC25m
2026-07-10 DAL2734 - Jul 10, 09:45 UTCJul 10, 11:00 UTC1h 15m
2026-07-10 DAL1339 ATL → CLE Jul 10, 01:00 UTCJul 10, 02:15 UTC1h 15m
2026-07-09 DAL2720 - Jul 9, 22:20 UTCJul 9, 23:30 UTC1h 10m
2026-07-09 DAL2720 - Jul 9, 19:25 UTCJul 9, 20:15 UTC50m
2026-07-09 DAL2835 YYZ → ATL Jul 9, 15:55 UTCJul 9, 17:40 UTC1h 45m
2026-07-09 DAL2957 ATL → AUS Jul 9, 12:10 UTCJul 9, 13:55 UTC1h 45m
2026-07-09 DAL3038 - Jul 9, 09:45 UTCJul 9, 10:20 UTC35m
2026-07-09 DAL3029 - Jul 9, 02:40 UTCJul 9, 03:15 UTC35m
2026-07-09 DAL3132 MSY → ATL Jul 9, 00:20 UTCJul 9, 01:25 UTC1h 5m
2026-07-09 DAL3132 MSY → ATL Jul 9, 00:19 UTCJul 9, 01:19 UTC1h 0m
2026-07-08 DAL3132 ATL → MSY Jul 8, 21:45 UTCJul 8, 22:50 UTC1h 5m
2026-07-08 DAL2710 YYZ → ATL Jul 8, 18:05 UTCJul 8, 19:40 UTC1h 35m
2026-07-08 DAL2883 ATL → YYZ Jul 8, 14:30 UTCJul 8, 16:10 UTC1h 40m
2026-07-08 DAL3106 - Jul 8, 11:05 UTCJul 8, 12:15 UTC1h 10m
2026-07-08 DAL674 MSP → IND Jul 8, 03:01 UTCJul 8, 04:07 UTC1h 6m
2026-07-08 DAL674 MSP → IND Jul 8, 03:05 UTCJul 8, 04:15 UTC1h 10m
2026-07-07 DAL630 LAS → MSP Jul 7, 20:37 UTCJul 7, 23:12 UTC2h 35m
2026-07-07 DAL630 LAS → MSP Jul 7, 20:40 UTCJul 7, 23:15 UTC2h 35m
2026-07-07 DAL2253 LAS → LAX Jul 7, 18:50 UTCJul 7, 19:35 UTC45m
2026-07-07 DAL1095 - Jul 7, 15:55 UTCJul 7, 17:20 UTC1h 25m
2026-07-07 DAL2906 - Jul 7, 12:55 UTCJul 7, 14:15 UTC1h 20m
2026-07-07 DAL2906 LAX → SLC Jul 7, 12:51 UTCJul 7, 14:13 UTC1h 22m
2026-07-07 DAL769 - Jul 7, 00:45 UTCJul 7, 04:35 UTC3h 50m

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 N808DN page for operator, model, and routing details .

Mode-S AAFFED frequently asked

What is Mode-S code AAFFED?
AAFFED is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N808DN.
Where is Mode-S AAFFED registered?
Mode-S code AAFFED 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 AAFFED broadcasting right now?
Yes. Mode-S AAFFED is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAFFED, octal 52577755, decimal 11,206,637.
What flights does AAFFED operate?
Mode-S AAFFED has broadcast 20 distinct callsigns, including DAL2233, DAL539, DAL2894, DAL2195, DAL2078.