Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD38DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N951FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
AD38DF
Octal
53234337
Decimal
11,352,287
Country
US
Tail
N951FD
Type
B752
No current signal · last broadcast 5h ago
Flights observed
125
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S AD38DF.

Country allocation

The ICAO 24-bit address AD38DF 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
FDX1502 FedEx Express 6 2026-06-16
FDX1040 - 5 2026-07-14
FDX1487 - 4 2026-06-19
FDX1408 FedEx Express 4 2026-05-19
FDX1370 FedEx Express 4 2026-05-20
FDX1332 - 4 2026-06-23
FDX1302 - 4 2026-06-17
FDX1901 - 3 2026-06-26
FDX1767 FedEx Express 3 2026-06-12
FDX1726 FedEx Express 3 2026-04-21
FDX1454 - 3 2026-06-17
FDX1320 - 3 2026-06-25
FDX1270 FedEx Express 3 2026-05-12
FDX1254 - 3 2026-06-18
FDX1073 - 3 2026-07-10
FDX1058 FedEx Express 3 2026-04-15
FDX982 FedEx Express 2 2026-04-28
FDX1989 - 2 2026-06-26
FDX1950 FedEx Express 2 2026-05-27
FDX1702 FedEx Express 2 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1079 - Jul 14, 09:05 UTCJul 14, 09:50 UTC45m
2026-07-14 FDX1040 - Jul 14, 02:55 UTCJul 14, 03:55 UTC1h 0m
2026-07-10 FDX1073 - Jul 10, 08:05 UTCJul 10, 09:05 UTC1h 0m
2026-07-10 FDX1040 - Jul 10, 03:10 UTCJul 10, 04:10 UTC1h 0m
2026-07-08 FDX1073 - Jul 8, 08:15 UTCJul 8, 09:20 UTC1h 5m
2026-07-08 FDX1040 EWR → GSO Jul 8, 02:56 UTCJul 8, 03:58 UTC1h 2m
2026-07-08 FDX1040 - Jul 8, 03:00 UTCJul 8, 04:00 UTC1h 0m
2026-07-07 FDX1073 - Jul 7, 09:05 UTCJul 7, 10:05 UTC1h 0m
2026-07-02 FDX1040 - Jul 2, 03:10 UTCJul 2, 04:10 UTC1h 0m
2026-06-30 FDX1926 BNH → EWR Jun 30, 02:25 UTCJun 30, 03:15 UTC50m
2026-06-26 FDX1989 EWR → BOS Jun 26, 08:05 UTCJun 26, 08:45 UTC40m
2026-06-26 FDX1989 EWR → BOS Jun 26, 08:04 UTCJun 26, 08:44 UTC40m
2026-06-26 FDX1901 IAD → EWR Jun 26, 03:28 UTCJun 26, 04:09 UTC41m
2026-06-26 FDX1901 IAD → EWR Jun 26, 03:29 UTCJun 26, 04:10 UTC40m
2026-06-25 FDX1540 - Jun 25, 08:30 UTCJun 25, 09:55 UTC1h 25m
2026-06-25 FDX1320 - Jun 25, 02:59 UTCJun 25, 03:40 UTC40m
2026-06-24 FDX1457 - Jun 24, 09:59 UTCJun 24, 10:45 UTC45m
2026-06-24 FDX1380 - Jun 24, 01:39 UTCJun 24, 04:55 UTC3h 15m
2026-06-23 FDX1332 - Jun 23, 04:35 UTCJun 23, 07:40 UTC3h 5m
2026-06-23 FDX1332 COS → AFW Jun 23, 02:20 UTCJun 23, 03:29 UTC1h 10m
2026-06-19 FDX1487 - Jun 19, 08:54 UTCJun 19, 10:44 UTC1h 50m
2026-06-19 FDX1293 - Jun 19, 02:45 UTCJun 19, 04:04 UTC1h 20m
2026-06-18 FDX1493 - Jun 18, 09:25 UTCJun 18, 10:45 UTC1h 20m
2026-06-18 FDX1254 - Jun 18, 04:35 UTCJun 18, 06:05 UTC1h 30m
2026-06-18 FDX1254 - Jun 18, 00:50 UTCJun 18, 02:35 UTC1h 45m
2026-06-17 FDX1454 - Jun 17, 08:35 UTCJun 17, 10:40 UTC2h 5m
2026-06-17 FDX1302 - Jun 17, 03:25 UTCJun 17, 04:40 UTC1h 15m
2026-06-16 FDX1502 MEM → FWA Jun 16, 10:55 UTCJun 16, 11:10 UTC15m
2026-06-16 FDX1502 MEM → FWA Jun 16, 09:04 UTCJun 16, 09:55 UTC50m
2026-06-16 FDX1310 - Jun 16, 01:25 UTCJun 16, 03:55 UTC2h 30m
2026-06-13 FDX1564 - Jun 13, 09:25 UTCJun 13, 11:15 UTC1h 50m
2026-06-13 FDX1564 MEM → SWF Jun 13, 09:20 UTCJun 13, 11:20 UTC2h 0m
2026-06-13 FDX1316 - Jun 13, 01:55 UTCJun 13, 04:10 UTC2h 15m
2026-06-13 FDX1316 - Jun 13, 00:20 UTCJun 13, 00:45 UTC25m
2026-06-12 FDX1767 SYR → BTV Jun 12, 12:20 UTCJun 12, 12:45 UTC25m
2026-06-12 FDX1767 SYR → BTV Jun 12, 12:15 UTCJun 12, 12:45 UTC30m
2026-06-12 FDX1767 SYR → BTV Jun 12, 09:55 UTCJun 12, 11:05 UTC1h 10m
2026-06-12 FDX1662 JAX → IND Jun 12, 02:05 UTCJun 12, 05:00 UTC2h 55m
2026-06-11 FDX1727 IND → ORD Jun 11, 08:10 UTCJun 11, 09:35 UTC1h 25m
2026-06-11 FDX1677 LAX → IND Jun 11, 03:25 UTCJun 11, 04:35 UTC1h 10m
2026-06-10 FDX1464 MEM → CID Jun 10, 09:30 UTCJun 10, 10:35 UTC1h 5m
2026-06-10 FDX1329 ATW → MEM Jun 10, 02:35 UTCJun 10, 03:40 UTC1h 5m
2026-06-10 FDX1329 ATW → MEM Jun 10, 01:15 UTCJun 10, 01:50 UTC35m
2026-06-09 FDX1477 MEM → MSN Jun 9, 09:45 UTCJun 9, 11:10 UTC1h 25m
2026-06-09 FDX1291 PWM → MEM Jun 9, 01:15 UTCJun 9, 03:45 UTC2h 30m
2026-06-06 FDX1491 MEM → PWM Jun 6, 08:15 UTCJun 6, 10:25 UTC2h 10m
2026-06-06 FDX1322 GRR → MEM Jun 6, 03:40 UTCJun 6, 04:35 UTC55m
2026-06-06 FDX1322 GRR → MEM Jun 6, 03:15 UTCJun 6, 03:35 UTC20m
2026-06-05 FDX1702 IND → ATL Jun 5, 08:45 UTCJun 5, 09:20 UTC35m
2026-06-05 FDX1643 GRR → IND Jun 5, 03:10 UTCJun 5, 03:50 UTC40m

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 N951FD page for operator, model, and routing details .

Mode-S AD38DF frequently asked

What is Mode-S code AD38DF?
AD38DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N951FD.
Where is Mode-S AD38DF registered?
Mode-S code AD38DF 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 AD38DF broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD38DF, octal 53234337, decimal 11,352,287.
What flights does AD38DF operate?
Mode-S AD38DF has broadcast 20 distinct callsigns, including FDX1502, FDX1040, FDX1487, FDX1408, FDX1370.