Apparatus

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sensors Mode-S transponder

AD27AA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N947FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
AD27AA
Octal
53223652
Decimal
11,347,882
Country
US
Tail
N947FD
Type
B752
No current signal · last broadcast 1d ago
Flights observed
125
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AD27AA.

Country allocation

The ICAO 24-bit address AD27AA 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
FDX1757 - 11 2026-06-30
FDX2619 FedEx Express 6 2026-06-25
FDX1558 FedEx Express 5 2026-06-03
FDX839 - 4 2026-07-12
FDX1726 FedEx Express 4 2026-05-06
FDX1559 - 4 2026-07-03
FDX1702 - 3 2026-06-19
FDX1615 FedEx Express 3 2026-05-07
FDX1606 - 3 2026-06-18
FDX1548 - 3 2026-07-11
FDX1485 - 3 2026-06-24
FDX1441 - 3 2026-07-01
FDX1211 FedEx Express 3 2026-05-12
FDX983 FedEx Express 2 2026-04-19
FDX2640 FedEx Express 2 2026-06-12
FDX2324 FedEx Express 2 2026-07-01
FDX1780 FedEx Express 2 2026-04-16
FDX1777 FedEx Express 2 2026-05-07
FDX1727 - 2 2026-06-26
FDX1662 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 FDX839 - Jul 12, 13:30 UTCJul 12, 15:20 UTC1h 50m
2026-07-12 FDX839 - Jul 12, 12:10 UTCJul 12, 12:40 UTC30m
2026-07-11 FDX1548 - Jul 11, 08:50 UTCJul 11, 11:30 UTC2h 40m
2026-07-11 FDX1548 MEM → GTF Jul 11, 08:49 UTCJul 11, 11:51 UTC3h 2m
2026-07-10 FDX1381 - Jul 10, 17:00 UTCJul 10, 19:10 UTC2h 10m
2026-07-09 FDX1073 - Jul 9, 08:10 UTCJul 9, 09:15 UTC1h 5m
2026-07-09 FDX1073 GSO → EWR Jul 9, 08:06 UTCJul 9, 09:10 UTC1h 4m
2026-07-09 FDX1058 - Jul 9, 04:00 UTCJul 9, 06:00 UTC2h 0m
2026-07-09 FDX1058 - Jul 9, 02:05 UTCJul 9, 02:20 UTC15m
2026-07-08 FDX1123 EWR → AFW Jul 8, 02:45 UTCJul 8, 05:50 UTC3h 5m
2026-07-07 FDX1585 - Jul 7, 10:00 UTCJul 7, 11:55 UTC1h 55m
2026-07-07 FDX2356 - Jul 7, 05:50 UTCJul 7, 06:45 UTC55m
2026-07-03 FDX1559 - Jul 3, 08:30 UTCJul 3, 09:05 UTC35m
2026-07-03 FDX1559 - Jul 3, 07:05 UTCJul 3, 07:55 UTC50m
2026-07-03 FDX1254 - Jul 3, 01:10 UTCJul 3, 03:35 UTC2h 25m
2026-07-02 FDX1454 - Jul 2, 08:55 UTCJul 2, 11:15 UTC2h 20m
2026-07-02 FDX1270 - Jul 2, 03:25 UTCJul 2, 04:35 UTC1h 10m
2026-07-01 FDX1441 - Jul 1, 09:05 UTCJul 1, 09:45 UTC40m
2026-07-01 FDX2324 BNA → MEM Jul 1, 04:15 UTCJul 1, 04:50 UTC35m
2026-06-30 FDX1757 - Jun 30, 12:05 UTCJun 30, 13:15 UTC1h 10m
2026-06-30 FDX1757 - Jun 30, 08:45 UTCJun 30, 10:15 UTC1h 30m
2026-06-30 FDX1662 - Jun 30, 02:20 UTCJun 30, 03:55 UTC1h 35m
2026-06-26 FDX1727 - Jun 26, 08:00 UTCJun 26, 09:20 UTC1h 20m
2026-06-25 FDX2619 TYS → SDF Jun 25, 05:00 UTCJun 25, 05:29 UTC30m
2026-06-25 FDX2619 TYS → SDF Jun 25, 04:56 UTCJun 25, 05:29 UTC33m
2026-06-25 FDX2619 TYS → SDF Jun 25, 03:15 UTCJun 25, 03:59 UTC45m
2026-06-24 FDX1485 - Jun 24, 08:55 UTCJun 24, 09:39 UTC45m
2026-06-24 FDX1321 - Jun 24, 02:34 UTCJun 24, 04:00 UTC1h 25m
2026-06-23 FDX1521 - Jun 23, 09:54 UTCJun 23, 11:35 UTC1h 40m
2026-06-21 FDX839 LAX → MEM Jun 21, 13:39 UTCJun 21, 15:25 UTC1h 45m
2026-06-21 FDX839 LAX → MEM Jun 21, 11:40 UTCJun 21, 12:44 UTC1h 5m
2026-06-20 FDX1548 - Jun 20, 08:49 UTCJun 20, 11:30 UTC2h 40m
2026-06-20 FDX1322 - Jun 20, 03:09 UTCJun 20, 04:34 UTC1h 25m
2026-06-19 FDX1702 IND → GRR Jun 19, 08:54 UTCJun 19, 09:40 UTC45m
2026-06-19 FDX1662 - Jun 19, 02:14 UTCJun 19, 03:49 UTC1h 35m
2026-06-18 FDX1727 - Jun 18, 08:45 UTCJun 18, 10:20 UTC1h 35m
2026-06-18 FDX1606 - Jun 18, 02:25 UTCJun 18, 03:10 UTC45m
2026-06-17 FDX1469 - Jun 17, 08:55 UTCJun 17, 10:20 UTC1h 25m
2026-06-17 FDX1385 - Jun 17, 03:50 UTCJun 17, 05:25 UTC1h 35m
2026-06-16 FDX1585 MEM → DFW Jun 16, 11:15 UTCJun 16, 12:50 UTC1h 35m
2026-06-16 FDX1291 - Jun 16, 01:30 UTCJun 16, 04:35 UTC3h 5m
2026-06-13 FDX1491 MEM → PWM Jun 13, 09:00 UTCJun 13, 11:05 UTC2h 5m
2026-06-13 FDX2324 BNA → MEM Jun 13, 04:15 UTCJun 13, 04:50 UTC35m
2026-06-12 FDX1757 MSY → ATL Jun 12, 12:15 UTCJun 12, 13:20 UTC1h 5m
2026-06-12 FDX1757 MSY → ATL Jun 12, 12:13 UTCJun 12, 13:20 UTC1h 7m
2026-06-12 FDX1757 MSY → ATL Jun 12, 09:20 UTCJun 12, 11:15 UTC1h 55m
2026-06-12 FDX2640 BNA → IND Jun 12, 05:25 UTCJun 12, 06:10 UTC45m
2026-06-12 FDX2640 BNA → IND Jun 12, 05:25 UTCJun 12, 06:09 UTC44m
2026-06-11 FDX1757 MSY → ATL Jun 11, 11:00 UTCJun 11, 12:10 UTC1h 10m
2026-06-11 FDX1757 MSY → ATL Jun 11, 08:20 UTCJun 11, 09:45 UTC1h 25m

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 N947FD page for operator, model, and routing details .

Mode-S AD27AA frequently asked

What is Mode-S code AD27AA?
AD27AA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N947FD.
Where is Mode-S AD27AA registered?
Mode-S code AD27AA 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 AD27AA broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD27AA, octal 53223652, decimal 11,347,882.
What flights does AD27AA operate?
Mode-S AD27AA has broadcast 20 distinct callsigns, including FDX1757, FDX2619, FDX1558, FDX839, FDX1726.