Apparatus

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sensors Mode-S transponder

AC1DBC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N88ZA · BELL 407 · operated by N88ZA LLC

Hex
AC1DBC
Octal
53016674
Decimal
11,279,804
Country
US
Tail
N88ZA
Type
B407
No current signal · last broadcast Jul 26, 20:15 UTC
Flights observed
225
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 20:15 UTC

Last known position

Most recent position reported by Mode-S AC1DBC.

Country allocation

The ICAO 24-bit address AC1DBC 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
N88ZA - 225 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N88ZA - Jul 26, 19:20 UTCJul 26, 20:15 UTC55m
2026-07-26 N88ZA - Jul 26, 17:50 UTCJul 26, 18:35 UTC45m
2026-07-26 N88ZA - Jul 26, 16:05 UTCJul 26, 17:05 UTC1h 0m
2026-07-25 N88ZA - Jul 25, 20:40 UTCJul 25, 22:55 UTC2h 15m
2026-07-25 N88ZA - Jul 25, 17:50 UTCJul 25, 19:00 UTC1h 10m
2026-07-25 N88ZA - Jul 25, 00:05 UTCJul 25, 01:05 UTC1h 0m
2026-07-24 N88ZA - Jul 24, 17:50 UTCJul 24, 21:55 UTC4h 5m
2026-07-24 N88ZA - Jul 24, 15:55 UTCJul 24, 16:50 UTC55m
2026-07-24 N88ZA - Jul 24, 14:25 UTCJul 24, 15:25 UTC1h 0m
2026-07-24 N88ZA - Jul 24, 11:10 UTCJul 24, 12:35 UTC1h 25m
2026-07-24 N88ZA - Jul 24, 03:20 UTCJul 24, 05:20 UTC2h 0m
2026-07-23 N88ZA - Jul 23, 21:45 UTCJul 23, 23:00 UTC1h 15m
2026-07-23 N88ZA JRB → TSS Jul 23, 18:50 UTCJul 23, 20:15 UTC1h 25m
2026-07-23 N88ZA - Jul 23, 18:35 UTCJul 23, 18:45 UTC10m
2026-07-22 N88ZA HTO → CDW Jul 22, 23:45 UTCJul 23, 00:40 UTC55m
2026-07-22 N88ZA - Jul 22, 21:55 UTCJul 22, 23:15 UTC1h 20m
2026-07-22 N88ZA - Jul 22, 20:05 UTCJul 22, 21:20 UTC1h 15m
2026-07-21 N88ZA TEB → CDW Jul 21, 01:35 UTCJul 21, 01:55 UTC20m
2026-07-20 N88ZA - Jul 20, 21:55 UTCJul 20, 23:55 UTC2h 0m
2026-07-20 N88ZA - Jul 20, 19:35 UTCJul 20, 21:25 UTC1h 50m
2026-07-20 N88ZA - Jul 20, 19:00 UTCJul 20, 19:30 UTC30m
2026-07-20 N88ZA - Jul 20, 13:15 UTCJul 20, 14:05 UTC50m
2026-07-20 N88ZA - Jul 20, 11:50 UTCJul 20, 12:35 UTC45m
2026-07-20 N88ZA - Jul 20, 00:40 UTCJul 20, 02:35 UTC1h 55m
2026-07-19 N88ZA - Jul 19, 23:25 UTCJul 19, 23:40 UTC15m
2026-07-19 N88ZA - Jul 19, 21:15 UTCJul 19, 21:25 UTC10m
2026-07-19 N88ZA - Jul 19, 16:00 UTCJul 19, 16:10 UTC10m
2026-07-19 N88ZA - Jul 19, 14:15 UTCJul 19, 15:55 UTC1h 40m
2026-07-18 N88ZA - Jul 18, 01:54 UTCJul 18, 02:45 UTC50m
2026-07-18 N88ZA - Jul 18, 00:39 UTCJul 18, 01:20 UTC40m
2026-07-18 N88ZA - Jul 18, 00:19 UTCJul 18, 00:29 UTC10m
2026-07-17 N88ZA TSS → CDW Jul 17, 17:20 UTCJul 17, 19:30 UTC2h 10m
2026-07-17 N88ZA - Jul 17, 17:05 UTCJul 17, 17:15 UTC10m
2026-07-17 N88ZA - Jul 17, 15:10 UTCJul 17, 15:40 UTC30m
2026-07-16 N88ZA - Jul 16, 22:05 UTCJul 16, 22:25 UTC20m
2026-07-16 N88ZA - Jul 16, 17:14 UTCJul 16, 17:45 UTC30m
2026-07-16 N88ZA - Jul 16, 01:30 UTCJul 16, 02:20 UTC50m
2026-07-15 N88ZA - Jul 15, 22:05 UTCJul 16, 00:15 UTC2h 10m
2026-07-15 N88ZA - Jul 15, 20:00 UTCJul 15, 20:50 UTC50m
2026-07-15 N88ZA - Jul 15, 18:30 UTCJul 15, 19:20 UTC50m
2026-07-13 N88ZA LGA → CDW Jul 13, 22:25 UTCJul 14, 00:05 UTC1h 40m
2026-07-13 N88ZA CDW → LGA Jul 13, 21:10 UTCJul 13, 21:25 UTC15m
2026-07-13 N88ZA TSS → CDW Jul 13, 19:15 UTCJul 13, 20:35 UTC1h 20m
2026-07-13 N88ZA NYS → TSS Jul 13, 18:45 UTCJul 13, 19:10 UTC25m
2026-07-13 N88ZA - Jul 13, 17:00 UTCJul 13, 17:40 UTC40m
2026-07-13 N88ZA - Jul 13, 14:15 UTCJul 13, 15:55 UTC1h 40m
2026-07-13 N88ZA - Jul 13, 11:10 UTCJul 13, 13:15 UTC2h 5m
2026-07-12 N88ZA - Jul 12, 23:00 UTCJul 13, 00:10 UTC1h 10m
2026-07-12 N88ZA - Jul 12, 20:40 UTCJul 12, 22:10 UTC1h 30m
2026-07-11 N88ZA EWR → CDW Jul 11, 21:45 UTCJul 11, 23:40 UTC1h 55m

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 N88ZA page for operator, model, and routing details .

Mode-S AC1DBC frequently asked

What is Mode-S code AC1DBC?
AC1DBC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N88ZA.
Where is Mode-S AC1DBC registered?
Mode-S code AC1DBC 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 AC1DBC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC1DBC, octal 53016674, decimal 11,279,804.
What flights does AC1DBC operate?
Mode-S AC1DBC has broadcast 1 distinct callsign, including N88ZA.