Apparatus

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sensors Mode-S transponder

AC972C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N910FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
AC972C
Octal
53113454
Decimal
11,310,892
Country
US
Tail
N910FD
Type
B752
Broadcasting now · callsign FDX1451 · 12,275 ft
Flights observed
124
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Current position

AC972C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC972C 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
FDX5504 FedEx Express 5 2026-04-22
FDX156 - 5 2026-07-01
FDX5503 FedEx Express 4 2026-04-21
FDX1323 - 4 2026-06-30
FDX1288 - 4 2026-07-01
FDX1231 - 4 2026-06-27
FDX114 FedEx Express 4 2026-04-21
FDX2374 FedEx Express 3 2026-06-16
FDX155 FedEx Express 3 2026-06-05
FDX1502 - 3 2026-07-03
FDX1488 - 3 2026-06-30
FDX1474 - 3 2026-06-27
FDX1457 - 3 2026-07-07
FDX1442 - 3 2026-06-25
FDX1441 - 3 2026-06-24
FDX1408 FedEx Express 3 2026-06-12
FDX1316 - 3 2026-06-26
FDX1291 - 3 2026-07-11
FDX1270 - 3 2026-06-25
FDX9105 - 2 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1357 - Jul 14, 02:05 UTCJul 14, 04:00 UTC1h 55m
2026-07-11 FDX1500 - Jul 11, 11:45 UTCJul 11, 12:05 UTC20m
2026-07-11 FDX1500 - Jul 11, 09:40 UTCJul 11, 10:45 UTC1h 5m
2026-07-11 FDX1291 - Jul 11, 01:20 UTCJul 11, 04:05 UTC2h 45m
2026-07-11 FDX1291 PWM → MEM Jul 11, 01:15 UTCJul 11, 04:06 UTC2h 51m
2026-07-10 FDX1491 - Jul 10, 08:35 UTCJul 10, 10:50 UTC2h 15m
2026-07-10 FDX1332 - Jul 10, 02:25 UTCJul 10, 04:10 UTC1h 45m
2026-07-09 FDX1487 - Jul 9, 09:10 UTCJul 9, 11:00 UTC1h 50m
2026-07-09 FDX1293 - Jul 9, 02:35 UTCJul 9, 04:10 UTC1h 35m
2026-07-08 FDX1493 - Jul 8, 09:15 UTCJul 8, 10:35 UTC1h 20m
2026-07-08 FDX1320 - Jul 8, 03:05 UTCJul 8, 03:45 UTC40m
2026-07-07 FDX1457 - Jul 7, 10:05 UTCJul 7, 10:40 UTC35m
2026-07-07 FDX1457 MEM → SGF Jul 7, 10:01 UTCJul 7, 10:40 UTC39m
2026-07-07 FDX1302 - Jul 7, 03:15 UTCJul 7, 04:25 UTC1h 10m
2026-07-03 FDX1502 - Jul 3, 10:40 UTCJul 3, 11:00 UTC20m
2026-07-03 FDX1502 FWA → SBN Jul 3, 10:36 UTCJul 3, 10:55 UTC19m
2026-07-03 FDX1502 - Jul 3, 08:55 UTCJul 3, 09:50 UTC55m
2026-07-03 FDX1320 - Jul 3, 03:10 UTCJul 3, 03:50 UTC40m
2026-07-02 FDX1457 - Jul 2, 09:50 UTCJul 2, 10:25 UTC35m
2026-07-01 FDX9105 - Jul 1, 13:50 UTCJul 1, 16:00 UTC2h 10m
2026-07-01 FDX9105 YOW → MEM Jul 1, 13:45 UTCJul 1, 16:05 UTC2h 20m
2026-07-01 FDX156 - Jul 1, 10:00 UTCJul 1, 12:05 UTC2h 5m
2026-07-01 FDX1288 - Jul 1, 03:35 UTCJul 1, 04:10 UTC35m
2026-07-01 FDX1288 BHM → MEM Jul 1, 03:33 UTCJul 1, 04:10 UTC37m
2026-06-30 FDX1488 - Jun 30, 10:15 UTCJun 30, 10:45 UTC30m
2026-06-30 FDX1488 MEM → BHM Jun 30, 10:13 UTCJun 30, 10:45 UTC32m
2026-06-30 FDX1323 - Jun 30, 03:25 UTCJun 30, 04:35 UTC1h 10m
2026-06-30 FDX1323 DAY → MEM Jun 30, 03:25 UTCJun 30, 04:31 UTC1h 6m
2026-06-27 FDX1474 - Jun 27, 09:24 UTCJun 27, 10:25 UTC1h 0m
2026-06-27 FDX1231 - Jun 27, 02:50 UTCJun 27, 04:39 UTC1h 50m
2026-06-27 FDX1231 FAR → MEM Jun 27, 02:49 UTCJun 27, 04:41 UTC1h 52m
2026-06-26 FDX1544 - Jun 26, 22:44 UTCJun 27, 00:39 UTC1h 55m
2026-06-26 FDX1316 - Jun 26, 02:20 UTCJun 26, 04:39 UTC2h 20m
2026-06-25 FDX1442 - Jun 25, 08:24 UTCJun 25, 10:04 UTC1h 40m
2026-06-25 FDX1270 - Jun 25, 03:29 UTCJun 25, 04:20 UTC50m
2026-06-24 FDX1441 - Jun 24, 09:00 UTCJun 24, 09:45 UTC45m
2026-06-24 FDX1296 - Jun 24, 01:55 UTCJun 24, 03:44 UTC1h 50m
2026-06-23 FDX1578 - Jun 23, 09:14 UTCJun 23, 10:55 UTC1h 40m
2026-06-23 FDX1269 - Jun 23, 02:04 UTCJun 23, 03:34 UTC1h 30m
2026-06-20 FDX1469 - Jun 20, 09:19 UTCJun 20, 10:39 UTC1h 20m
2026-06-20 FDX1328 - Jun 20, 01:24 UTCJun 20, 03:29 UTC2h 5m
2026-06-19 FDX1528 - Jun 19, 09:04 UTCJun 19, 10:44 UTC1h 40m
2026-06-19 FDX1323 - Jun 19, 02:59 UTCJun 19, 04:04 UTC1h 5m
2026-06-18 FDX1474 - Jun 18, 09:50 UTCJun 18, 10:55 UTC1h 5m
2026-06-18 FDX1347 - Jun 18, 02:40 UTCJun 18, 05:15 UTC2h 35m
2026-06-17 FDX1570 MEM → ALB Jun 17, 08:30 UTCJun 17, 10:30 UTC2h 0m
2026-06-17 FDX1270 - Jun 17, 03:50 UTCJun 17, 04:45 UTC55m
2026-06-17 FDX1270 LFT → MEM Jun 17, 03:46 UTCJun 17, 04:45 UTC59m
2026-06-16 FDX1441 - Jun 16, 08:55 UTCJun 16, 09:45 UTC50m
2026-06-16 FDX1441 MEM → LFT Jun 16, 08:51 UTCJun 16, 09:44 UTC53m

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 N910FD page for operator, model, and routing details .

Mode-S AC972C frequently asked

What is Mode-S code AC972C?
AC972C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N910FD.
Where is Mode-S AC972C registered?
Mode-S code AC972C 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 AC972C broadcasting right now?
Yes. Mode-S AC972C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC972C, octal 53113454, decimal 11,310,892.
What flights does AC972C operate?
Mode-S AC972C has broadcast 20 distinct callsigns, including FDX5504, FDX156, FDX5503, FDX1323, FDX1288.