Apparatus

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sensors Mode-S transponder

A133B0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N177FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A133B0
Octal
50231660
Decimal
10,564,528
Country
US
Tail
N177FE
Type
B763
No current signal · last broadcast 8h ago
Flights observed
182
Distinct callsigns
20
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A133B0.

Country allocation

The ICAO 24-bit address A133B0 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
FDX1216 FedEx Express 6 2026-06-06
FDX716 FedEx Express 5 2026-06-07
FDX1344 FedEx Express 5 2026-06-02
FDX1804 FedEx Express 4 2026-06-05
FDX1706 - 4 2026-07-14
FDX1573 FedEx Express 4 2026-04-16
FDX1414 FedEx Express 4 2026-05-30
FDX3647 FedEx Express 3 2026-04-14
FDX1889 - 3 2026-06-27
FDX1857 FedEx Express 3 2026-06-05
FDX1853 - 3 2026-06-24
FDX1728 FedEx Express 3 2026-06-09
FDX1415 FedEx Express 3 2026-04-15
FDX1359 FedEx Express 3 2026-04-17
FDX1107 - 3 2026-06-16
FDX915 FedEx Express 2 2026-05-11
FDX851 FedEx Express 2 2026-06-06
FDX644 FedEx Express 2 2026-05-21
FDX451 FedEx Express 2 2026-06-11
FDX379 FedEx Express 2 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1706 - Jul 14, 09:20 UTCJul 14, 10:05 UTC45m
2026-07-14 FDX1678 - Jul 14, 04:10 UTCJul 14, 07:10 UTC3h 0m
2026-07-11 FDX1865 - Jul 11, 09:25 UTCJul 11, 10:55 UTC1h 30m
2026-07-10 FDX1468 - Jul 10, 08:55 UTCJul 10, 12:40 UTC3h 45m
2026-07-10 FDX1301 SFO → MEM Jul 10, 01:51 UTCJul 10, 05:30 UTC3h 39m
2026-07-10 FDX1301 - Jul 10, 01:55 UTCJul 10, 05:30 UTC3h 35m
2026-07-09 FDX1545 - Jul 9, 08:25 UTCJul 9, 12:00 UTC3h 35m
2026-07-09 FDX2209 - Jul 9, 01:45 UTCJul 9, 03:15 UTC1h 30m
2026-07-08 FDX1771 IND → MCO Jul 8, 08:15 UTCJul 8, 10:00 UTC1h 45m
2026-07-08 FDX1600 - Jul 8, 02:10 UTCJul 8, 03:45 UTC1h 35m
2026-07-07 FDX3901 - Jul 7, 14:45 UTCJul 7, 19:30 UTC4h 45m
2026-07-01 FDX1404 - Jul 1, 08:05 UTCJul 1, 11:25 UTC3h 20m
2026-07-01 FDX1205 - Jul 1, 02:40 UTCJul 1, 03:55 UTC1h 15m
2026-06-30 FDX1405 - Jun 30, 10:40 UTCJun 30, 12:00 UTC1h 20m
2026-06-30 FDX1222 - Jun 30, 02:25 UTCJun 30, 05:35 UTC3h 10m
2026-06-27 FDX1889 ONT → SAN Jun 27, 11:20 UTCJun 27, 11:44 UTC25m
2026-06-27 FDX1889 OAK → ONT Jun 27, 09:19 UTCJun 27, 10:14 UTC55m
2026-06-27 FDX1889 - Jun 27, 09:19 UTCJun 27, 10:00 UTC40m
2026-06-26 FDX1705 IND → OAK Jun 26, 08:02 UTCJun 26, 12:10 UTC4h 8m
2026-06-26 FDX1705 IND → OAK Jun 26, 08:05 UTCJun 26, 12:14 UTC4h 10m
2026-06-26 FDX1678 PHX → IND Jun 26, 03:10 UTCJun 26, 05:55 UTC2h 45m
2026-06-25 FDX1748 - Jun 25, 08:20 UTCJun 25, 11:30 UTC3h 10m
2026-06-25 FDX1610 BOS → IND Jun 25, 02:19 UTCJun 25, 04:14 UTC1h 55m
2026-06-24 FDX3714 - Jun 24, 21:09 UTCJun 24, 22:49 UTC1h 40m
2026-06-24 FDX3646 ONT → IND Jun 24, 13:44 UTCJun 24, 16:59 UTC3h 15m
2026-06-24 FDX1853 OAK → ONT Jun 24, 09:28 UTCJun 24, 10:20 UTC52m
2026-06-24 FDX1853 OAK → ONT Jun 24, 09:29 UTCJun 24, 10:25 UTC55m
2026-06-24 FDX1837 PHX → OAK Jun 24, 03:44 UTCJun 24, 05:15 UTC1h 30m
2026-06-23 FDX3711 - Jun 23, 20:44 UTCJun 24, 00:09 UTC3h 25m
2026-06-23 FDX3605 - Jun 23, 11:40 UTCJun 23, 13:45 UTC2h 5m
2026-06-23 FDX1444 - Jun 23, 08:15 UTCJun 23, 10:04 UTC1h 50m
2026-06-23 FDX1201 - Jun 23, 02:34 UTCJun 23, 03:29 UTC55m
2026-06-19 FDX1735 - Jun 19, 07:29 UTCJun 19, 09:09 UTC1h 40m
2026-06-19 FDX1627 ORD → IND Jun 19, 04:34 UTCJun 19, 05:09 UTC35m
2026-06-18 FDX1706 - Jun 18, 09:30 UTCJun 18, 10:05 UTC35m
2026-06-18 FDX151 YYZ → IND Jun 18, 02:35 UTCJun 18, 03:50 UTC1h 15m
2026-06-17 FDX150 - Jun 17, 09:05 UTCJun 17, 10:05 UTC1h 0m
2026-06-17 FDX1625 ELP → IND Jun 17, 02:10 UTCJun 17, 04:40 UTC2h 30m
2026-06-16 FDX1188 SAT → ELP Jun 16, 10:09 UTCJun 16, 11:20 UTC1h 10m
2026-06-16 FDX1188 SAT → ELP Jun 16, 08:30 UTCJun 16, 09:15 UTC45m
2026-06-16 FDX1107 - Jun 16, 04:20 UTCJun 16, 06:10 UTC1h 50m
2026-06-12 FDX1157 AFW → ORD Jun 12, 07:45 UTCJun 12, 09:30 UTC1h 45m
2026-06-12 FDX1121 LRD → SAT Jun 12, 03:30 UTCJun 12, 04:15 UTC45m
2026-06-11 FDX379 MEM → SAT Jun 11, 23:35 UTCJun 12, 00:20 UTC45m
2026-06-11 FDX379 MEM → SAT Jun 11, 21:15 UTCJun 11, 22:20 UTC1h 5m
2026-06-11 FDX451 LAX → MEM Jun 11, 13:00 UTCJun 11, 16:05 UTC3h 5m
2026-06-11 FDX1742 IND → LAX Jun 11, 07:05 UTCJun 11, 11:00 UTC3h 55m
2026-06-11 FDX1608 STL → IND Jun 11, 04:10 UTCJun 11, 04:50 UTC40m
2026-06-10 FDX1708 IND → STL Jun 10, 09:05 UTCJun 10, 09:40 UTC35m
2026-06-10 FDX1650 LAX → IND Jun 10, 02:15 UTCJun 10, 05:50 UTC3h 35m

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 N177FE page for operator, model, and routing details .

Mode-S A133B0 frequently asked

What is Mode-S code A133B0?
A133B0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N177FE.
Where is Mode-S A133B0 registered?
Mode-S code A133B0 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 A133B0 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A133B0, octal 50231660, decimal 10,564,528.
What flights does A133B0 operate?
Mode-S A133B0 has broadcast 20 distinct callsigns, including FDX1216, FDX716, FDX1344, FDX1804, FDX1706.