Apparatus

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sensors Mode-S transponder

AB7F18

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N84SH · operated by ALF IX LLC

Hex
AB7F18
Octal
52677430
Decimal
11,239,192
Country
US
Tail
N84SH
Type
C172
No current signal · last broadcast 7d ago
Flights observed
96
Distinct callsigns
1
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S AB7F18.

Country allocation

The ICAO 24-bit address AB7F18 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
N84SH - 96 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N84SH DBQ → DBQ May 29, 16:15 UTCMay 29, 17:10 UTC55m
2026-05-29 N84SH DBQ → DBQ May 29, 13:45 UTCMay 29, 14:55 UTC1h 10m
2026-05-29 N84SH DBQ → DBQ May 29, 00:00 UTCMay 29, 01:10 UTC1h 10m
2026-05-28 N84SH DBQ → DBQ May 28, 21:45 UTCMay 28, 23:05 UTC1h 20m
2026-05-28 N84SH DBQ → DBQ May 28, 18:25 UTCMay 28, 20:25 UTC2h 0m
2026-05-28 N84SH DBQ → DBQ May 28, 16:25 UTCMay 28, 17:20 UTC55m
2026-05-28 N84SH DBQ → DBQ May 28, 13:35 UTCMay 28, 14:35 UTC1h 0m
2026-05-27 N84SH - May 27, 23:15 UTCMay 28, 00:10 UTC55m
2026-05-27 N84SH - May 27, 21:10 UTCMay 27, 22:15 UTC1h 5m
2026-05-27 N84SH DBQ → DBQ May 27, 17:30 UTCMay 27, 19:45 UTC2h 15m
2026-05-27 N84SH DBQ → DBQ May 27, 13:40 UTCMay 27, 16:10 UTC2h 30m
2026-05-26 N84SH DBQ → DBQ May 26, 20:54 UTCMay 26, 21:40 UTC45m
2026-05-26 N84SH DBQ → DBQ May 26, 18:55 UTCMay 26, 19:55 UTC1h 0m
2026-05-26 N84SH DBQ → DBQ May 26, 14:45 UTCMay 26, 17:59 UTC3h 15m
2026-05-22 N84SH - May 22, 16:35 UTCMay 22, 17:05 UTC30m
2026-05-22 N84SH - May 22, 16:15 UTCMay 22, 16:30 UTC15m
2026-05-22 N84SH DBQ → DBQ May 22, 14:20 UTCMay 22, 14:40 UTC20m
2026-05-21 N84SH - May 21, 20:15 UTCMay 21, 21:20 UTC1h 5m
2026-05-21 N84SH - May 21, 17:45 UTCMay 21, 18:45 UTC1h 0m
2026-05-21 N84SH DBQ → DBQ May 21, 16:01 UTCMay 21, 16:50 UTC50m
2026-05-21 N84SH - May 21, 12:45 UTCMay 21, 15:00 UTC2h 15m
2026-05-20 N84SH - May 20, 22:10 UTCMay 20, 23:45 UTC1h 35m
2026-05-20 N84SH - May 20, 18:30 UTCMay 20, 20:55 UTC2h 25m
2026-05-20 N84SH - May 20, 16:20 UTCMay 20, 17:15 UTC55m
2026-05-20 N84SH - May 20, 14:30 UTCMay 20, 15:30 UTC1h 0m
2026-05-20 N84SH - May 20, 12:40 UTCMay 20, 13:30 UTC50m
2026-05-18 N84SH DBQ → DBQ May 18, 23:00 UTCMay 19, 00:05 UTC1h 5m
2026-05-18 N84SH DBQ → DBQ May 18, 18:25 UTCMay 18, 19:40 UTC1h 14m
2026-05-18 N84SH DBQ → DBQ May 18, 17:05 UTCMay 18, 17:25 UTC20m
2026-05-15 N84SH DBQ → DBQ May 15, 17:55 UTCMay 15, 20:40 UTC2h 45m
2026-05-15 N84SH DBQ → DBQ May 15, 16:15 UTCMay 15, 17:05 UTC50m
2026-05-15 N84SH DBQ → DBQ May 15, 13:50 UTCMay 15, 14:45 UTC55m
2026-05-14 N84SH MXO → DBQ May 14, 20:25 UTCMay 14, 20:45 UTC20m
2026-05-11 N84SH - May 11, 21:50 UTCMay 11, 22:05 UTC15m
2026-05-11 N84SH DBQ → DBQ May 11, 19:05 UTCMay 11, 20:05 UTC1h 0m
2026-05-11 N84SH DBQ → DBQ May 11, 16:55 UTCMay 11, 17:55 UTC1h 0m
2026-05-11 N84SH DBQ → DBQ May 11, 14:35 UTCMay 11, 15:30 UTC55m
2026-05-11 N84SH DBQ → DBQ May 11, 12:45 UTCMay 11, 13:35 UTC50m
2026-05-09 N84SH DBQ → DBQ May 9, 13:35 UTCMay 9, 14:25 UTC50m
2026-05-08 N84SH DBQ → DBQ May 8, 19:40 UTCMay 8, 20:40 UTC1h 0m
2026-05-08 N84SH DBQ → DBQ May 8, 16:45 UTCMay 8, 17:35 UTC50m
2026-05-08 N84SH DBQ → DBQ May 8, 15:05 UTCMay 8, 15:40 UTC35m
2026-05-08 N84SH DBQ → DBQ May 8, 12:49 UTCMay 8, 13:55 UTC1h 5m
2026-05-07 N84SH DBQ → DBQ May 7, 18:05 UTCMay 7, 18:55 UTC50m
2026-05-07 N84SH DBQ → DBQ May 7, 15:55 UTCMay 7, 17:15 UTC1h 20m
2026-05-07 N84SH DBQ → DBQ May 7, 12:45 UTCMay 7, 14:30 UTC1h 45m
2026-05-06 N84SH DBQ → DBQ May 6, 14:35 UTCMay 6, 15:35 UTC1h 0m
2026-05-06 N84SH DBQ → DBQ May 6, 12:50 UTCMay 6, 13:35 UTC45m
2026-05-05 N84SH DBQ → DBQ May 5, 19:55 UTCMay 5, 20:45 UTC50m
2026-05-05 N84SH DBQ → DBQ May 5, 17:35 UTCMay 5, 18:35 UTC1h 0m

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 N84SH page for operator, model, and routing details .

Mode-S AB7F18 frequently asked

What is Mode-S code AB7F18?
AB7F18 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N84SH.
Where is Mode-S AB7F18 registered?
Mode-S code AB7F18 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 AB7F18 broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7F18, octal 52677430, decimal 11,239,192.
What flights does AB7F18 operate?
Mode-S AB7F18 has broadcast 1 distinct callsign, including N84SH.