Apparatus

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sensors Mode-S transponder

A0B97C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N146FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A0B97C
Octal
50134574
Decimal
10,533,244
Country
US
Tail
N146FE
Type
B763
No current signal · last broadcast 4h ago
Flights observed
173
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A0B97C.

Country allocation

The ICAO 24-bit address A0B97C 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
FDX67 - 7 2026-06-20
FDX1804 FedEx Express 7 2026-06-12
FDX945 - 4 2026-06-11
FDX53 - 4 2026-06-19
FDX89 FedEx Express 3 2026-05-28
FDX82 - 3 2026-07-02
FDX68 FedEx Express 3 2026-04-28
FDX54 - 3 2026-07-01
FDX411 FedEx Express 3 2026-04-26
FDX251 FedEx Express 3 2026-05-12
FDX1874 FedEx Express 3 2026-06-10
FDX168 FedEx Express 3 2026-06-21
FDX1461 - 3 2026-06-16
FDX1268 - 3 2026-06-30
FDX1261 - 3 2026-06-17
FDX876 FedEx Express 2 2026-04-23
FDX785 FedEx Express 2 2026-04-23
FDX52 FedEx Express 2 2026-05-13
FDX382 FedEx Express 2 2026-04-16
FDX3704 - 2 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1429 - Jul 14, 08:55 UTCJul 14, 12:10 UTC3h 15m
2026-07-14 FDX1429 MEM → SMF Jul 14, 08:51 UTCJul 14, 12:16 UTC3h 25m
2026-07-14 FDX1251 - Jul 14, 02:55 UTCJul 14, 04:10 UTC1h 15m
2026-07-11 FDX1475 - Jul 11, 09:50 UTCJul 11, 11:10 UTC1h 20m
2026-07-11 FDX1234 - Jul 11, 02:15 UTCJul 11, 05:35 UTC3h 20m
2026-07-08 FDX1742 - Jul 8, 07:15 UTCJul 8, 10:50 UTC3h 35m
2026-07-08 FDX1618 MSP → IND Jul 8, 03:00 UTCJul 8, 04:10 UTC1h 10m
2026-07-07 FDX1718 - Jul 7, 09:20 UTCJul 7, 10:30 UTC1h 10m
2026-07-07 FDX151 YYZ → IND Jul 7, 02:20 UTCJul 7, 03:25 UTC1h 5m
2026-07-07 FDX151 YYZ → IND Jul 7, 02:20 UTCJul 7, 03:24 UTC1h 4m
2026-07-03 FDX150 - Jul 3, 08:50 UTCJul 3, 09:55 UTC1h 5m
2026-07-03 FDX1654 - Jul 3, 02:25 UTCJul 3, 05:50 UTC3h 25m
2026-07-02 FDX1422 - Jul 2, 09:25 UTCJul 2, 12:40 UTC3h 15m
2026-07-02 FDX82 QRO → MEM Jul 2, 01:58 UTCJul 2, 04:55 UTC2h 57m
2026-07-01 FDX82 - Jul 1, 09:50 UTCJul 2, 04:55 UTC19h 5m
2026-07-01 FDX54 - Jul 1, 02:30 UTCJul 1, 05:05 UTC2h 35m
2026-06-30 FDX253 - Jun 30, 19:25 UTCJun 30, 21:25 UTC2h 0m
2026-06-30 FDX1268 OAK → MEM Jun 30, 02:04 UTCJun 30, 05:30 UTC3h 26m
2026-06-30 FDX1268 - Jun 30, 02:05 UTCJun 30, 05:30 UTC3h 25m
2026-06-26 FDX1801 - Jun 26, 04:34 UTCJun 26, 05:30 UTC55m
2026-06-25 FDX352 - Jun 25, 21:44 UTCJun 26, 01:15 UTC3h 30m
2026-06-25 FDX352 MEM → LAX Jun 25, 21:40 UTCJun 26, 01:14 UTC3h 34m
2026-06-25 FDX698 - Jun 25, 13:20 UTCJun 25, 16:20 UTC3h 0m
2026-06-25 FDX1853 OAK → ONT Jun 25, 09:25 UTCJun 25, 10:20 UTC55m
2026-06-25 FDX1807 PDX → OAK Jun 25, 03:50 UTCJun 25, 05:09 UTC1h 20m
2026-06-24 FDX3704 - Jun 24, 21:19 UTCJun 25, 01:40 UTC4h 20m
2026-06-24 FDX3617 - Jun 24, 13:34 UTCJun 24, 16:59 UTC3h 25m
2026-06-24 FDX1404 - Jun 24, 07:40 UTCJun 24, 11:14 UTC3h 35m
2026-06-24 FDX1312 - Jun 24, 03:24 UTCJun 24, 04:44 UTC1h 20m
2026-06-23 FDX1416 - Jun 23, 08:59 UTCJun 23, 10:24 UTC1h 25m
2026-06-23 FDX1221 - Jun 23, 02:15 UTCJun 23, 03:00 UTC45m
2026-06-21 FDX727 - Jun 21, 22:00 UTCJun 21, 22:49 UTC50m
2026-06-21 FDX168 MTY → MEM Jun 21, 00:19 UTCJun 21, 02:24 UTC2h 5m
2026-06-20 FDX67 - Jun 20, 20:14 UTCJun 20, 22:14 UTC2h 0m
2026-06-20 FDX54 - Jun 20, 02:24 UTCJun 20, 04:59 UTC2h 35m
2026-06-19 FDX53 - Jun 19, 09:40 UTCJun 19, 11:39 UTC2h 0m
2026-06-19 FDX53 MEM → TLC Jun 19, 09:36 UTCJun 19, 12:10 UTC2h 34m
2026-06-18 FDX1221 - Jun 18, 02:00 UTCJun 18, 02:50 UTC50m
2026-06-17 FDX1421 - Jun 17, 07:50 UTCJun 17, 08:40 UTC50m
2026-06-17 FDX1421 MEM → ATL Jun 17, 07:45 UTCJun 17, 08:39 UTC54m
2026-06-17 FDX1261 - Jun 17, 00:55 UTCJun 17, 02:55 UTC2h 0m
2026-06-16 FDX1461 - Jun 16, 08:39 UTCJun 16, 10:35 UTC1h 55m
2026-06-16 FDX1268 - Jun 16, 01:55 UTCJun 16, 05:25 UTC3h 30m
2026-06-13 FDX311 MEM → OAK Jun 13, 21:55 UTCJun 14, 01:40 UTC3h 45m
2026-06-13 FDX1234 - Jun 13, 02:05 UTCJun 13, 05:10 UTC3h 5m
2026-06-12 FDX1869 OAK → LAX Jun 12, 10:00 UTCJun 12, 10:50 UTC50m
2026-06-12 FDX1804 SLC → OAK Jun 12, 05:25 UTCJun 12, 05:55 UTC30m
2026-06-12 FDX1804 SLC → OAK Jun 12, 05:15 UTCJun 12, 05:54 UTC39m
2026-06-12 FDX1804 SLC → OAK Jun 12, 03:15 UTCJun 12, 03:45 UTC30m
2026-06-11 FDX945 - Jun 11, 20:45 UTCJun 12, 00:00 UTC3h 15m

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 N146FE page for operator, model, and routing details .

Mode-S A0B97C frequently asked

What is Mode-S code A0B97C?
A0B97C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N146FE.
Where is Mode-S A0B97C registered?
Mode-S code A0B97C 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 A0B97C broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0B97C, octal 50134574, decimal 10,533,244.
What flights does A0B97C operate?
Mode-S A0B97C has broadcast 20 distinct callsigns, including FDX67, FDX1804, FDX945, FDX53, FDX89.