Apparatus

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sensors Mode-S transponder

A1245E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N173AM · operated by BANK OF UTAH TRUSTEE

Hex
A1245E
Octal
50222136
Decimal
10,560,606
Country
US
Tail
N173AM
Type
B38M
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
342
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A1245E.

Country allocation

The ICAO 24-bit address A1245E 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
AMX649 - 15 2026-07-15
AMX705 - 9 2026-07-18
AMX648 - 9 2026-06-23
AMX755 - 8 2026-07-06
AMX702 - 8 2026-07-18
AMX695 - 7 2026-07-08
AMX615 - 7 2026-06-22
AMX614 - 7 2026-06-22
AMX655 - 6 2026-07-16
AMX643 - 6 2026-07-08
AMX019 - 6 2026-06-20
AMX694 - 5 2026-07-08
AMX642 Aeroméxico 5 2026-07-07
AMX609 - 5 2026-07-01
AMX608 - 5 2026-06-30
AMX461 - 5 2026-07-09
AMX435 Aeroméxico 5 2026-05-11
AMX645 - 4 2026-06-30
AMX471 - 4 2026-07-13
AMX470 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AMX640 MEX → BOS Jul 26, 19:35 UTCJul 26, 21:30 UTC1h 55m
2026-07-26 AMX405 JFK → MEX Jul 26, 12:45 UTCJul 26, 17:05 UTC4h 20m
2026-07-25 AMX406 MTY → JFK Jul 25, 23:35 UTCJul 26, 03:30 UTC3h 55m
2026-07-25 AMX932 MEX → MTY Jul 25, 20:55 UTCJul 25, 22:05 UTC1h 10m
2026-07-25 AMX523 CUN → MEX Jul 25, 17:00 UTCJul 25, 18:45 UTC1h 45m
2026-07-25 AMX504 MEX → CUN Jul 25, 13:50 UTCJul 25, 15:45 UTC1h 55m
2026-07-25 AMX665 SFO → MEX Jul 25, 07:20 UTCJul 25, 09:15 UTC1h 55m
2026-07-25 AMX664 MEX → SFO Jul 25, 00:00 UTCJul 25, 03:55 UTC3h 55m
2026-07-24 AMX495 SEA → MEX Jul 24, 21:30 UTCJul 24, 21:55 UTC25m
2026-07-24 AMX495 SEA → MEX Jul 24, 17:00 UTCJul 24, 20:50 UTC3h 50m
2026-07-23 AMX494 MEX → SEA Jul 23, 21:40 UTCJul 24, 02:35 UTC4h 55m
2026-07-23 AMX641 BOS → MEX Jul 23, 14:30 UTCJul 23, 19:25 UTC4h 55m
2026-07-22 AMX640 MEX → BOS Jul 22, 19:40 UTCJul 23, 00:25 UTC4h 45m
2026-07-22 AMX405 JFK → MEX Jul 22, 13:00 UTCJul 22, 17:45 UTC4h 45m
2026-07-22 AMX404 MEX → JFK Jul 22, 00:00 UTCJul 22, 04:30 UTC4h 30m
2026-07-21 AMX143 - Jul 21, 21:00 UTCJul 21, 21:10 UTC10m
2026-07-21 AMX140 MEX → CUU Jul 21, 16:35 UTCJul 21, 20:10 UTC3h 35m
2026-07-21 AMX201 GDL → MEX Jul 21, 12:40 UTCJul 21, 13:00 UTC20m
2026-07-20 AMX260 - Jul 20, 03:35 UTCJul 20, 03:50 UTC15m
2026-07-19 AMX762 BOG → MEX Jul 19, 21:15 UTCJul 20, 01:30 UTC4h 15m
2026-07-19 AMX761 - Jul 19, 15:20 UTCJul 19, 19:25 UTC4h 5m
2026-07-19 AMX901 MTY → MEX Jul 19, 12:00 UTCJul 19, 13:00 UTC1h 0m
2026-07-18 AMX932 - Jul 18, 20:30 UTCJul 18, 21:40 UTC1h 10m
2026-07-18 AMX705 - Jul 18, 18:25 UTCJul 18, 18:40 UTC15m
2026-07-18 AMX705 - Jul 18, 16:30 UTCJul 18, 16:45 UTC15m
2026-07-18 AMX702 - Jul 18, 14:45 UTCJul 18, 15:05 UTC20m
2026-07-18 AMX702 - Jul 18, 12:50 UTCJul 18, 13:10 UTC20m
2026-07-18 AMX120 - Jul 18, 03:15 UTCJul 18, 03:25 UTC10m
2026-07-17 AMX117 - Jul 17, 21:55 UTCJul 18, 02:25 UTC4h 30m
2026-07-17 AMX681 - Jul 17, 15:20 UTCJul 17, 20:10 UTC4h 50m
2026-07-17 AMX680 - Jul 17, 06:29 UTCJul 17, 11:15 UTC4h 45m
2026-07-17 AMX145 - Jul 17, 01:39 UTCJul 17, 01:55 UTC15m
2026-07-16 AMX144 - Jul 16, 21:00 UTCJul 17, 00:50 UTC3h 50m
2026-07-16 AMX655 - Jul 16, 06:30 UTCJul 16, 19:25 UTC12h 55m
2026-07-16 AMX555 CUN → MEX Jul 16, 00:55 UTCJul 16, 02:45 UTC1h 50m
2026-07-15 AMX536 - Jul 15, 21:35 UTCJul 15, 23:30 UTC1h 55m
2026-07-15 AMX649 - Jul 15, 19:25 UTCJul 15, 19:40 UTC15m
2026-07-15 AMX649 - Jul 15, 16:25 UTCJul 15, 17:45 UTC1h 20m
2026-07-14 AMX623 - Jul 14, 18:55 UTCJul 15, 02:50 UTC7h 54m
2026-07-14 AMX789 SMF → SFO Jul 14, 07:40 UTCJul 14, 16:30 UTC8h 50m
2026-07-13 AMX788 - Jul 13, 20:55 UTCJul 14, 05:30 UTC8h 35m
2026-07-13 AMX782 - Jul 13, 13:20 UTCJul 13, 18:15 UTC4h 55m
2026-07-13 AMX471 - Jul 13, 01:15 UTCJul 13, 02:55 UTC1h 40m
2026-07-12 AMX470 - Jul 12, 21:15 UTCJul 12, 23:05 UTC1h 50m
2026-07-12 AMX655 - Jul 12, 15:35 UTCJul 12, 19:40 UTC4h 5m
2026-07-12 AMX654 - Jul 12, 06:35 UTCJul 12, 10:15 UTC3h 40m
2026-07-12 AMX145 - Jul 12, 01:30 UTCJul 12, 01:55 UTC25m
2026-07-11 AMX144 - Jul 11, 20:40 UTCJul 12, 00:50 UTC4h 10m
2026-07-11 AMX655 - Jul 11, 15:25 UTCJul 11, 19:15 UTC3h 50m
2026-07-11 AMX654 - Jul 11, 06:40 UTCJul 11, 10:20 UTC3h 40m

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 N173AM page for operator, model, and routing details .

Mode-S A1245E frequently asked

What is Mode-S code A1245E?
A1245E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N173AM.
Where is Mode-S A1245E registered?
Mode-S code A1245E 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 A1245E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1245E, octal 50222136, decimal 10,560,606.
What flights does A1245E operate?
Mode-S A1245E has broadcast 20 distinct callsigns, including AMX649, AMX705, AMX648, AMX755, AMX702.