Apparatus

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sensors Mode-S transponder

A966B1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N70464 · DE HAVILLAND DHC-6 Twin Otter

Hex
A966B1
Octal
52263261
Decimal
11,101,873
Country
US
Tail
N70464
Type
DHC6
No current signal · last broadcast 10h ago
Flights observed
104
Distinct callsigns
1
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S A966B1.

Country allocation

The ICAO 24-bit address A966B1 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
CONGO64 - 104 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CONGO64 AFF → COS Jul 17, 18:55 UTCJul 17, 19:30 UTC35m
2026-07-17 CONGO64 AFF → AFF Jul 17, 17:35 UTCJul 17, 18:50 UTC1h 15m
2026-07-17 CONGO64 - Jul 17, 16:04 UTCJul 17, 16:24 UTC20m
2026-07-17 CONGO64 - Jul 17, 14:50 UTCJul 17, 16:00 UTC1h 10m
2026-07-17 CONGO64 COS → AFF Jul 17, 12:45 UTCJul 17, 14:44 UTC2h 0m
2026-07-16 CONGO64 AFF → COS Jul 16, 17:40 UTCJul 16, 17:49 UTC10m
2026-07-16 CONGO64 - Jul 16, 16:09 UTCJul 16, 16:55 UTC45m
2026-07-16 CONGO64 AFF → AFF Jul 16, 15:30 UTCJul 16, 15:45 UTC15m
2026-07-16 CONGO64 - Jul 16, 15:00 UTCJul 16, 15:25 UTC25m
2026-07-16 CONGO64 COS → AFF Jul 16, 13:15 UTCJul 16, 14:45 UTC1h 30m
2026-07-15 CONGO64 AFF → COS Jul 15, 18:20 UTCJul 15, 18:35 UTC15m
2026-07-15 CONGO64 - Jul 15, 17:00 UTCJul 15, 17:10 UTC10m
2026-07-15 CONGO64 - Jul 15, 16:35 UTCJul 15, 16:55 UTC20m
2026-07-15 CONGO64 - Jul 15, 15:25 UTCJul 15, 15:45 UTC20m
2026-07-15 CONGO64 - Jul 15, 15:00 UTCJul 15, 15:20 UTC20m
2026-07-15 CONGO64 - Jul 15, 14:30 UTCJul 15, 14:45 UTC15m
2026-07-15 CONGO64 - Jul 15, 13:40 UTCJul 15, 14:25 UTC45m
2026-07-15 CONGO64 COS → AFF Jul 15, 13:15 UTCJul 15, 13:25 UTC10m
2026-07-14 CONGO64 - Jul 14, 19:25 UTCJul 14, 19:30 UTC5m
2026-07-14 CONGO64 - Jul 14, 19:00 UTCJul 14, 19:20 UTC20m
2026-07-14 CONGO64 - Jul 14, 17:35 UTCJul 14, 18:20 UTC45m
2026-07-14 CONGO64 AFF → AFF Jul 14, 16:55 UTCJul 14, 17:25 UTC30m
2026-07-14 CONGO64 - Jul 14, 15:00 UTCJul 14, 16:10 UTC1h 10m
2026-07-14 CONGO64 AFF → AFF Jul 14, 13:45 UTCJul 14, 14:55 UTC1h 10m
2026-07-14 CONGO64 COS → AFF Jul 14, 13:15 UTCJul 14, 13:40 UTC25m
2026-07-13 CONGO64 AFF → COS Jul 13, 17:35 UTCJul 13, 18:40 UTC1h 5m
2026-07-13 CONGO64 - Jul 13, 13:50 UTCJul 13, 15:45 UTC1h 55m
2026-07-13 CONGO64 COS → AFF Jul 13, 13:15 UTCJul 13, 13:45 UTC30m
2026-07-10 CONGO64 - Jul 10, 17:55 UTCJul 10, 19:55 UTC2h 0m
2026-07-10 CONGO64 - Jul 10, 13:50 UTCJul 10, 17:15 UTC3h 25m
2026-07-10 CONGO64 AFF → AFF Jul 10, 13:15 UTCJul 10, 13:40 UTC25m
2026-07-10 CONGO64 COS → AFF Jul 10, 12:55 UTCJul 10, 13:10 UTC15m
2026-07-09 CONGO64 - Jul 9, 18:35 UTCJul 9, 18:45 UTC10m
2026-07-09 CONGO64 COS → AFF Jul 9, 15:15 UTCJul 9, 17:55 UTC2h 40m
2026-07-09 CONGO64 COS → COS Jul 9, 12:40 UTCJul 9, 14:25 UTC1h 45m
2026-07-08 CONGO64 - Jul 8, 18:10 UTCJul 8, 18:30 UTC20m
2026-07-08 CONGO64 - Jul 8, 15:35 UTCJul 8, 17:00 UTC1h 25m
2026-07-08 CONGO64 COS → AFF Jul 8, 15:15 UTCJul 8, 15:25 UTC10m
2026-07-08 CONGO64 - Jul 8, 13:40 UTCJul 8, 14:45 UTC1h 5m
2026-07-08 CONGO64 COS → AFF Jul 8, 12:50 UTCJul 8, 13:10 UTC20m
2026-07-07 CONGO64 AFF → COS Jul 7, 18:05 UTCJul 7, 19:50 UTC1h 45m
2026-07-07 CONGO64 - Jul 7, 16:10 UTCJul 7, 17:30 UTC1h 20m
2026-07-07 CONGO64 AFF → AFF Jul 7, 14:50 UTCJul 7, 16:05 UTC1h 15m
2026-07-07 CONGO64 COS → AFF Jul 7, 13:00 UTCJul 7, 14:45 UTC1h 45m
2026-07-06 CONGO64 - Jul 6, 19:00 UTCJul 6, 19:05 UTC5m
2026-07-06 CONGO64 AFF → AFF Jul 6, 18:30 UTCJul 6, 18:55 UTC25m
2026-07-06 CONGO64 - Jul 6, 13:30 UTCJul 6, 17:35 UTC4h 5m
2026-07-06 CONGO64 COS → AFF Jul 6, 12:50 UTCJul 6, 12:55 UTC5m
2026-07-05 CONGO64 - Jul 5, 18:10 UTCJul 5, 18:50 UTC40m
2026-07-05 CONGO64 - Jul 5, 15:35 UTCJul 5, 16:25 UTC50m

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 N70464 page for operator, model, and routing details .

Mode-S A966B1 frequently asked

What is Mode-S code A966B1?
A966B1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N70464.
Where is Mode-S A966B1 registered?
Mode-S code A966B1 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 A966B1 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A966B1, octal 52263261, decimal 11,101,873.
What flights does A966B1 operate?
Mode-S A966B1 has broadcast 1 distinct callsign, including CONGO64.