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sensors Mode-S transponder

A12F7E

ICAO 24-bit transponder address · allocated to United States

Hex
A12F7E
Octal
50227576
Decimal
10,563,454
Country
US
Broadcasting now · callsign ASI176 · 3,125 ft
Flights observed
223
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Current position

A12F7E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A12F7E 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 1 distinct

Callsign Airline Flights Last seen
ASI176 - 223 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASI176 DVT → DVT Jul 14, 17:00 UTCJul 14, 18:10 UTC1h 10m
2026-07-14 ASI176 DVT → DVT Jul 14, 15:20 UTCJul 14, 16:10 UTC50m
2026-07-14 ASI176 - Jul 14, 13:55 UTCJul 14, 14:15 UTC20m
2026-07-14 ASI176 - Jul 14, 13:40 UTCJul 14, 13:50 UTC10m
2026-07-14 ASI176 - Jul 14, 12:50 UTCJul 14, 13:30 UTC40m
2026-07-13 ASI176 DVT → DVT Jul 13, 19:45 UTCJul 13, 21:00 UTC1h 15m
2026-07-13 ASI176 - Jul 13, 16:00 UTCJul 13, 17:15 UTC1h 15m
2026-07-12 ASI176 DVT → DVT Jul 12, 19:55 UTCJul 12, 21:10 UTC1h 15m
2026-07-12 ASI176 DVT → DVT Jul 12, 17:30 UTCJul 12, 18:05 UTC35m
2026-07-12 ASI176 DVT → DVT Jul 12, 15:55 UTCJul 12, 16:20 UTC25m
2026-07-12 ASI176 - Jul 12, 13:20 UTCJul 12, 14:20 UTC1h 0m
2026-07-11 ASI176 DVT → DVT Jul 11, 17:55 UTCJul 11, 18:55 UTC1h 0m
2026-07-11 ASI176 DVT → DVT Jul 11, 15:25 UTCJul 11, 16:30 UTC1h 5m
2026-07-11 ASI176 DVT → DVT Jul 11, 12:50 UTCJul 11, 14:10 UTC1h 20m
2026-07-10 ASI176 DVT → DVT Jul 10, 20:35 UTCJul 10, 23:10 UTC2h 35m
2026-07-10 ASI176 DVT → DVT Jul 10, 17:50 UTCJul 10, 18:20 UTC30m
2026-07-10 ASI176 - Jul 10, 14:30 UTCJul 10, 15:30 UTC1h 0m
2026-07-09 ASI176 - Jul 9, 14:35 UTCJul 9, 17:25 UTC2h 50m
2026-07-08 ASI176 DVT → DVT Jul 8, 23:25 UTCJul 9, 02:05 UTC2h 40m
2026-07-08 ASI176 - Jul 8, 16:00 UTCJul 8, 17:25 UTC1h 25m
2026-07-08 ASI176 - Jul 8, 13:15 UTCJul 8, 14:15 UTC1h 0m
2026-07-07 ASI176 - Jul 7, 16:25 UTCJul 7, 17:50 UTC1h 25m
2026-07-07 ASI176 - Jul 7, 13:00 UTCJul 7, 14:40 UTC1h 40m
2026-07-07 ASI176 - Jul 7, 05:30 UTCJul 7, 07:10 UTC1h 40m
2026-07-06 ASI176 - Jul 6, 23:35 UTCJul 7, 01:35 UTC2h 0m
2026-07-06 ASI176 - Jul 6, 16:35 UTCJul 6, 17:20 UTC45m
2026-07-06 ASI176 DVT → DVT Jul 6, 14:05 UTCJul 6, 15:20 UTC1h 15m
2026-07-06 ASI176 DVT → DVT Jul 6, 04:05 UTCJul 6, 04:30 UTC25m
2026-07-05 ASI176 - Jul 5, 17:15 UTCJul 5, 17:55 UTC40m
2026-07-04 ASI176 - Jul 4, 04:00 UTCJul 4, 04:20 UTC20m
2026-07-03 ASI176 DVT → DVT Jul 3, 20:10 UTCJul 3, 20:15 UTC5m
2026-07-03 ASI176 DVT → DVT Jul 3, 17:40 UTCJul 3, 17:50 UTC10m
2026-07-03 ASI176 - Jul 3, 16:40 UTCJul 3, 17:05 UTC25m
2026-07-03 ASI176 DVT → DVT Jul 3, 16:25 UTCJul 3, 16:35 UTC10m
2026-07-03 ASI176 - Jul 3, 13:40 UTCJul 3, 15:10 UTC1h 30m
2026-07-02 ASI176 - Jul 2, 16:30 UTCJul 2, 17:45 UTC1h 15m
2026-07-02 ASI176 - Jul 2, 04:50 UTCJul 2, 05:45 UTC55m
2026-07-02 ASI176 - Jul 2, 00:15 UTCJul 2, 01:35 UTC1h 20m
2026-07-01 ASI176 DVT → DVT Jul 1, 20:10 UTCJul 1, 20:55 UTC45m
2026-07-01 ASI176 - Jul 1, 17:35 UTCJul 1, 19:15 UTC1h 40m
2026-07-01 ASI176 - Jul 1, 15:35 UTCJul 1, 16:40 UTC1h 5m
2026-07-01 ASI176 - Jul 1, 12:55 UTCJul 1, 13:55 UTC1h 0m
2026-07-01 ASI176 - Jul 1, 10:30 UTCJul 1, 11:20 UTC50m
2026-07-01 ASI176 - Jul 1, 08:20 UTCJul 1, 09:10 UTC50m
2026-07-01 ASI176 - Jul 1, 07:15 UTCJul 1, 07:45 UTC30m
2026-07-01 ASI176 - Jul 1, 04:10 UTCJul 1, 05:50 UTC1h 40m
2026-06-30 ASI176 DVT → DVT Jun 30, 20:40 UTCJun 30, 21:55 UTC1h 15m
2026-06-30 ASI176 - Jun 30, 18:40 UTCJun 30, 19:40 UTC1h 0m
2026-06-30 ASI176 DVT → DVT Jun 30, 12:55 UTCJun 30, 14:10 UTC1h 15m
2026-06-30 ASI176 - Jun 30, 02:35 UTCJun 30, 05:25 UTC2h 50m

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.

Mode-S A12F7E frequently asked

What is Mode-S code A12F7E?
A12F7E is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S A12F7E registered?
Mode-S code A12F7E 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 A12F7E broadcasting right now?
Yes. Mode-S A12F7E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A12F7E, octal 50227576, decimal 10,563,454.
What flights does A12F7E operate?
Mode-S A12F7E has broadcast 1 distinct callsign, including ASI176.