Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
508
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S AAFFED.

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
DAL2404 - 6 2026-07-16
DAL2195 Delta Air Lines 6 2026-05-09
DAL2078 Delta Air Lines 6 2026-04-14
DAL3119 - 5 2026-07-12
DAL2978 Delta Air Lines 5 2026-07-23
DAL2484 Delta Air Lines 5 2026-06-05
DAL2427 Delta Air Lines 5 2026-06-02
DAL1976 - 5 2026-07-01
DAL1203 - 5 2026-07-21
DAL937 Delta Air Lines 4 2026-04-26
DAL532 - 4 2026-07-17
DAL508 Delta Air Lines 4 2026-07-25
DAL3076 - 4 2026-06-29
DAL305 Delta Air Lines 4 2026-07-19
DAL3013 - 4 2026-06-25
DAL2946 Delta Air Lines 4 2026-05-03
DAL2908 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1423 MSN → DTW Jul 26, 20:55 UTCJul 26, 21:15 UTC20m
2026-07-26 DAL1423 MSN → DTW Jul 26, 17:45 UTCJul 26, 19:05 UTC1h 20m
2026-07-26 DAL698 DTW → SLC Jul 26, 12:45 UTCJul 26, 16:05 UTC3h 20m
2026-07-26 DAL407 PHL → SLC Jul 26, 05:35 UTCJul 26, 09:25 UTC3h 51m
2026-07-25 DAL508 SLC → JFK Jul 25, 22:50 UTCJul 26, 03:25 UTC4h 35m
2026-07-25 DAL508 SLC → JFK Jul 25, 16:55 UTCJul 25, 21:15 UTC4h 20m
2026-07-25 DAL553 LAS → LAX Jul 25, 14:20 UTCJul 25, 15:00 UTC40m
2026-07-25 DAL2202 JFK → MIA Jul 25, 03:00 UTCJul 25, 03:40 UTC40m
2026-07-24 DAL861 BNA → SEA Jul 24, 21:45 UTCJul 25, 01:45 UTC4h 0m
2026-07-24 DAL861 BNA → SEA Jul 24, 16:20 UTCJul 24, 19:55 UTC3h 35m
2026-07-24 DAL553 LAS → LAX Jul 24, 14:10 UTCJul 24, 15:00 UTC50m
2026-07-24 DAL553 LAS → LAX Jul 24, 14:08 UTCJul 24, 14:51 UTC43m
2026-07-24 DAL2653 LAX → LAS Jul 24, 04:50 UTCJul 24, 05:35 UTC45m
2026-07-24 DAL1629 BOS → CVG Jul 24, 02:02 UTCJul 24, 02:57 UTC55m
2026-07-24 DAL1629 BOS → CVG Jul 24, 02:05 UTCJul 24, 03:05 UTC1h 0m
2026-07-23 DAL823 SFO → ATL Jul 23, 20:00 UTCJul 24, 00:15 UTC4h 15m
2026-07-23 DAL2978 MSP → YYC Jul 23, 16:55 UTCJul 23, 18:15 UTC1h 20m
2026-07-23 DAL2978 MSP → YYC Jul 23, 14:10 UTCJul 23, 15:30 UTC1h 20m
2026-07-23 DAL3106 IND → ATL Jul 23, 10:55 UTCJul 23, 12:05 UTC1h 10m
2026-07-23 DAL2228 SLC → IND Jul 23, 00:15 UTCJul 23, 02:55 UTC2h 40m
2026-07-22 DAL1593 SLC → MEM Jul 22, 19:15 UTCJul 22, 22:20 UTC3h 5m
2026-07-22 DAL1593 SLC → MEM Jul 22, 19:14 UTCJul 22, 22:15 UTC3h 1m
2026-07-22 DAL768 - Jul 22, 13:10 UTCJul 22, 16:50 UTC3h 40m
2026-07-22 DAL769 ATL → SFO Jul 22, 01:10 UTCJul 22, 04:50 UTC3h 40m
2026-07-21 DAL2205 MCO → ATL Jul 21, 20:10 UTCJul 21, 23:05 UTC2h 55m
2026-07-21 DAL1203 PDX → SLC Jul 21, 17:00 UTCJul 21, 18:25 UTC1h 25m
2026-07-21 DAL1203 PDX → SLC Jul 21, 16:57 UTCJul 21, 18:25 UTC1h 28m
2026-07-21 DAL1203 - Jul 21, 13:50 UTCJul 21, 15:10 UTC1h 20m
2026-07-21 DAL1165 LGA → MCO Jul 21, 01:25 UTCJul 21, 03:05 UTC1h 40m
2026-07-21 DAL1165 LGA → MCO Jul 21, 01:23 UTCJul 21, 02:54 UTC1h 31m
2026-07-20 DAL481 SEA → OGG Jul 20, 19:00 UTCJul 20, 23:30 UTC4h 30m
2026-07-20 DAL1029 - Jul 20, 15:55 UTCJul 20, 17:35 UTC1h 40m
2026-07-20 DAL2428 - Jul 20, 11:20 UTCJul 20, 13:40 UTC2h 20m
2026-07-20 DAL1428 JFK → AUS Jul 20, 02:00 UTCJul 20, 04:40 UTC2h 40m
2026-07-19 DAL305 HNL → JFK Jul 19, 20:00 UTCJul 19, 22:30 UTC2h 30m
2026-07-18 DAL305 JFK → FLL Jul 18, 16:40 UTCJul 18, 19:10 UTC2h 30m
2026-07-18 DAL2428 MIA → JFK Jul 18, 11:30 UTCJul 18, 13:55 UTC2h 25m
2026-07-18 DAL2428 MIA → JFK Jul 18, 11:30 UTCJul 18, 13:51 UTC2h 21m
2026-07-18 DAL1428 - Jul 18, 00:15 UTCJul 18, 02:50 UTC2h 36m
2026-07-18 DAL1428 JFK → MIA Jul 18, 00:15 UTCJul 18, 02:48 UTC2h 33m
2026-07-17 DAL532 DEN → JFK Jul 17, 18:40 UTCJul 17, 21:55 UTC3h 15m
2026-07-17 DAL532 JFK → DEN Jul 17, 12:50 UTCJul 17, 16:15 UTC3h 25m
2026-07-17 DAL2095 TPA → JFK Jul 17, 00:14 UTCJul 17, 02:30 UTC2h 15m
2026-07-16 DAL2404 LGA → TPA Jul 16, 20:09 UTCJul 16, 22:31 UTC2h 22m
2026-07-16 DAL2404 LGA → TPA Jul 16, 20:09 UTCJul 16, 22:35 UTC2h 25m
2026-07-16 DAL2346 - Jul 16, 15:45 UTCJul 16, 18:10 UTC2h 25m
2026-07-16 DAL1528 JFK → MIA Jul 16, 11:20 UTCJul 16, 13:40 UTC2h 20m
2026-07-16 DAL2095 TPA → JFK Jul 16, 02:45 UTCJul 16, 04:55 UTC2h 10m
2026-07-15 DAL2404 LGA → TPA Jul 15, 20:38 UTCJul 15, 22:59 UTC2h 21m
2026-07-15 DAL2404 LGA → TPA Jul 15, 20:40 UTCJul 15, 23:00 UTC2h 20m

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?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
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, DAL2404, DAL2195.