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
Broadcasting now · callsign AMX623 · 37,000 ft
Flights observed
304
Distinct callsigns
20
Country
US
Last broadcast
36m ago

Current position

A1245E is currently broadcasting. Map zoomed to live position.

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 - 13 2026-06-25
AMX648 - 9 2026-06-23
AMX755 - 8 2026-07-06
AMX705 Aeroméxico 7 2026-05-13
AMX695 - 7 2026-07-08
AMX615 - 7 2026-06-22
AMX614 - 7 2026-06-22
AMX702 Aeroméxico 6 2026-05-13
AMX643 - 6 2026-07-08
AMX019 - 6 2026-06-20
AMX694 - 5 2026-07-08
AMX655 - 5 2026-07-12
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
2026-07-14 AMX623 - Jul 14, 18:55 UTCJul 14, 19:30 UTC35m
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
2026-07-11 AMX147 - Jul 11, 04:05 UTCJul 11, 04:20 UTC15m
2026-07-10 AMX146 - Jul 10, 23:40 UTCJul 11, 03:20 UTC3h 40m
2026-07-10 AMX1637 - Jul 10, 21:40 UTCJul 10, 21:45 UTC5m
2026-07-10 AMX1634 - Jul 10, 18:45 UTCJul 10, 19:00 UTC15m
2026-07-10 AMX103 - Jul 10, 16:15 UTCJul 10, 16:30 UTC15m
2026-07-10 AMX100 - Jul 10, 13:05 UTCJul 10, 13:25 UTC20m
2026-07-09 AMX461 - Jul 9, 15:40 UTCJul 10, 01:40 UTC10h 0m
2026-07-09 AMX715 - Jul 9, 05:00 UTCJul 9, 05:10 UTC10m
2026-07-09 AMX715 - Jul 9, 02:55 UTCJul 9, 03:10 UTC15m
2026-07-09 AMX710 - Jul 9, 01:15 UTCJul 9, 01:35 UTC20m
2026-07-08 AMX710 - Jul 8, 23:20 UTCJul 8, 23:35 UTC15m
2026-07-08 AMX695 - Jul 8, 20:25 UTCJul 8, 20:35 UTC10m
2026-07-08 AMX695 - Jul 8, 15:40 UTCJul 8, 18:45 UTC3h 5m
2026-07-08 AMX694 - Jul 8, 07:50 UTCJul 8, 12:55 UTC5h 5m
2026-07-08 AMX643 - Jul 8, 01:40 UTCJul 8, 05:00 UTC3h 20m
2026-07-07 AMX642 MEX → LAX Jul 7, 20:20 UTCJul 7, 23:45 UTC3h 25m
2026-07-07 AMX699 - Jul 7, 18:05 UTCJul 7, 18:20 UTC15m
2026-07-07 AMX699 - Jul 7, 14:35 UTCJul 7, 16:30 UTC1h 55m
2026-07-07 AMX698 - Jul 7, 02:40 UTCJul 7, 06:50 UTC4h 10m
2026-07-06 AMX339 - Jul 6, 19:40 UTCJul 6, 23:30 UTC3h 50m
2026-07-06 AMX755 - Jul 6, 15:05 UTCJul 6, 17:45 UTC2h 40m
2026-07-05 AMX755 - Jul 5, 21:35 UTCJul 6, 17:45 UTC20h 10m
2026-07-05 AMX755 - Jul 5, 19:35 UTCJul 6, 17:45 UTC22h 10m
2026-07-05 AMX755 - Jul 5, 19:20 UTCJul 6, 17:30 UTC22h 10m
2026-07-05 AMX717 - Jul 5, 06:45 UTCJul 5, 17:15 UTC10h 30m
2026-07-04 AMX687 - Jul 4, 22:50 UTCJul 5, 02:45 UTC3h 55m
2026-07-04 AMX686 MEX → ORD Jul 4, 15:50 UTCJul 4, 20:00 UTC4h 10m
2026-07-03 AMX835 - Jul 3, 20:35 UTCJul 4, 00:45 UTC4h 10m
2026-07-03 AMX805 - Jul 3, 17:55 UTCJul 3, 18:50 UTC55m
2026-07-03 AMX802 - Jul 3, 15:35 UTCJul 3, 16:20 UTC45m
2026-07-02 AMX811 - Jul 2, 23:00 UTCJul 3, 02:20 UTC3h 20m
2026-07-02 AMX655 SDQ → MEX Jul 2, 06:51 UTCJul 2, 19:45 UTC12h 54m
2026-07-02 AMX385 - Jul 2, 01:55 UTCJul 2, 02:05 UTC10m
2026-07-01 AMX384 - Jul 1, 20:55 UTCJul 1, 21:10 UTC15m
2026-07-01 AMX609 - Jul 1, 14:00 UTCJul 1, 18:05 UTC4h 5m
2026-06-30 AMX608 - Jun 30, 20:15 UTCJul 1, 00:40 UTC4h 25m
2026-06-30 AMX312 SXE → MEB Jun 30, 14:50 UTCJun 30, 18:15 UTC3h 25m
2026-06-30 AMX191 - Jun 30, 10:35 UTCJun 30, 10:45 UTC10m

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?
Yes. Mode-S A1245E is currently airborne.
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, AMX648, AMX755, AMX705, AMX695.