Apparatus

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sensors Mode-S transponder

AD404E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N953FE · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORPORATION

Hex
AD404E
Octal
53240116
Decimal
11,354,190
Country
US
Tail
N953FE
Type
C208
No current signal · last broadcast 3d ago
Flights observed
93
Distinct callsigns
20
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S AD404E.

Country allocation

The ICAO 24-bit address AD404E 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
CFS7697 Empire Airlines 11 2026-06-03
CFS8697 Empire Airlines 9 2026-06-02
CFS7701 Empire Airlines 6 2026-04-22
CFS4701 Empire Airlines 6 2026-04-22
CFS8744 Empire Airlines 3 2026-05-01
CFS8204 Empire Airlines 3 2026-05-30
CFS7658 - 3 2026-06-16
CFS4204 Empire Airlines 3 2026-05-30
CFS8980 Empire Airlines 2 2026-06-18
CFS8802 - 2 2026-07-14
CFS8775 - 2 2026-07-09
CFS8675 Empire Airlines 2 2026-05-07
CFS7802 - 2 2026-07-15
CFS7775 - 2 2026-07-10
CFS7744 Empire Airlines 2 2026-05-05
CFS7726 Empire Airlines 2 2026-05-02
CFS7655 Empire Airlines 2 2026-05-09
CFS4980 Empire Airlines 2 2026-06-18
CFS4802 - 2 2026-07-13
CFS4697 Empire Airlines 2 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 CFS7802 - Jul 15, 00:00 UTCJul 15, 00:40 UTC40m
2026-07-14 CFS8802 - Jul 14, 14:55 UTCJul 14, 15:40 UTC45m
2026-07-14 CFS7802 - Jul 14, 00:00 UTCJul 14, 00:40 UTC40m
2026-07-13 CFS4802 - Jul 13, 21:05 UTCJul 13, 21:50 UTC45m
2026-07-11 CFS4802 - Jul 11, 16:40 UTCJul 11, 17:35 UTC55m
2026-07-11 CFS8802 - Jul 11, 14:45 UTCJul 11, 15:35 UTC50m
2026-07-11 CFS7805 - Jul 11, 00:30 UTCJul 11, 01:25 UTC55m
2026-07-10 CFS8812 - Jul 10, 14:30 UTCJul 10, 15:20 UTC50m
2026-07-10 CFS7775 - Jul 10, 00:25 UTCJul 10, 01:05 UTC40m
2026-07-09 CFS8775 - Jul 9, 14:40 UTCJul 9, 15:15 UTC35m
2026-07-09 CFS7775 - Jul 9, 01:00 UTCJul 9, 01:40 UTC40m
2026-07-08 CFS8775 - Jul 8, 15:05 UTCJul 8, 15:40 UTC35m
2026-07-01 CFS202 - Jul 1, 21:45 UTCJul 2, 01:55 UTC4h 10m
2026-06-23 CFS4975 - Jun 23, 18:39 UTCJun 23, 19:34 UTC55m
2026-06-23 CFS8975 - Jun 23, 16:35 UTCJun 23, 17:34 UTC1h 0m
2026-06-19 CFS4981 - Jun 19, 17:49 UTCJun 19, 18:44 UTC55m
2026-06-19 CFS8981 - Jun 19, 15:44 UTCJun 19, 16:39 UTC55m
2026-06-18 CFS4980 ONP → PDX Jun 18, 19:00 UTCJun 18, 19:55 UTC55m
2026-06-18 CFS8980 PDX → ONP Jun 18, 16:30 UTCJun 18, 17:30 UTC1h 0m
2026-06-17 CFS4985 - Jun 17, 18:10 UTCJun 17, 19:05 UTC55m
2026-06-17 CFS8985 - Jun 17, 16:00 UTCJun 17, 17:00 UTC1h 0m
2026-06-16 CFS7658 - Jun 16, 23:45 UTCJun 17, 00:35 UTC50m
2026-06-16 CFS8658 - Jun 16, 15:24 UTCJun 16, 16:35 UTC1h 10m
2026-06-16 CFS7658 - Jun 16, 00:40 UTCJun 16, 01:10 UTC30m
2026-06-15 CFS7658 - Jun 15, 23:30 UTCJun 16, 00:05 UTC35m
2026-06-15 CFS4658 - Jun 15, 20:20 UTCJun 15, 21:20 UTC1h 0m
2026-06-13 CFS7664 UKI → SMF Jun 13, 22:45 UTCJun 13, 23:45 UTC1h 0m
2026-06-13 CFS8731 SMF → ACV Jun 13, 15:25 UTCJun 13, 16:25 UTC1h 0m
2026-06-05 CFS4972 BFL → ONT Jun 5, 15:45 UTCJun 5, 16:30 UTC45m
2026-06-05 CFS8972 PDX → MFR Jun 5, 14:20 UTCJun 5, 15:10 UTC50m
2026-06-04 CFS4980 ONP → PDX Jun 4, 17:35 UTCJun 4, 18:20 UTC45m
2026-06-04 CFS8980 PDX → ONP Jun 4, 15:25 UTCJun 4, 16:15 UTC50m
2026-06-03 CFS8979 PHX → FLG Jun 3, 15:45 UTCJun 3, 17:10 UTC1h 25m
2026-06-03 CFS7697 RDD → SMF Jun 3, 00:10 UTCJun 3, 00:55 UTC45m
2026-06-02 CFS8697 SMF → RDD Jun 2, 14:15 UTCJun 2, 15:00 UTC45m
2026-06-02 CFS7697 RDD → SMF Jun 2, 00:20 UTCJun 2, 01:15 UTC55m
2026-06-01 CFS4697 SMF → RDD Jun 1, 21:15 UTCJun 1, 22:00 UTC45m
2026-05-30 CFS4204 SMF → RDD May 30, 16:30 UTCMay 30, 17:20 UTC50m
2026-05-30 CFS8204 SMF → RDD May 30, 15:00 UTCMay 30, 15:50 UTC50m
2026-05-30 CFS7697 RDD → SMF May 30, 00:15 UTCMay 30, 01:00 UTC45m
2026-05-29 CFS8697 SMF → RDD May 29, 14:00 UTCMay 29, 14:50 UTC50m
2026-05-29 CFS7697 RDD → SMF May 29, 00:20 UTCMay 29, 01:10 UTC50m
2026-05-28 CFS8697 SMF → RDD May 28, 14:10 UTCMay 28, 15:00 UTC50m
2026-05-28 CFS7697 RDD → SMF May 28, 00:25 UTCMay 28, 01:10 UTC45m
2026-05-27 CFS8697 SMF → RDD May 27, 14:00 UTCMay 27, 14:45 UTC45m
2026-05-23 CFS4204 SMF → RDD May 23, 16:00 UTCMay 23, 16:50 UTC50m
2026-05-23 CFS8204 SMF → RDD May 23, 14:35 UTCMay 23, 15:20 UTC45m
2026-05-23 CFS7697 RDD → SMF May 23, 00:20 UTCMay 23, 01:10 UTC50m
2026-05-22 CFS8697 SMF → RDD May 22, 14:20 UTCMay 22, 15:10 UTC50m
2026-05-22 CFS7697 RDD → SMF May 22, 00:15 UTCMay 22, 01:00 UTC45m

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 N953FE page for operator, model, and routing details .

Mode-S AD404E frequently asked

What is Mode-S code AD404E?
AD404E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N953FE.
Where is Mode-S AD404E registered?
Mode-S code AD404E 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 AD404E broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD404E, octal 53240116, decimal 11,354,190.
What flights does AD404E operate?
Mode-S AD404E has broadcast 20 distinct callsigns, including CFS7697, CFS8697, CFS7701, CFS4701, CFS8744.