Apparatus

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sensors Mode-S transponder

ABC70E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N858WK · CESSNA 172 Skyhawk · operated by CHRISTIANSEN AVIATION LLC

Hex
ABC70E
Octal
52743416
Decimal
11,257,614
Country
US
Tail
N858WK
Type
C172
No current signal · last broadcast 7h ago
Flights observed
106
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S ABC70E.

Country allocation

The ICAO 24-bit address ABC70E 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
AUB148 - 106 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 AUB148 AUO → AUO Jul 18, 00:29 UTCJul 18, 01:20 UTC50m
2026-07-17 AUB148 AUO → AUO Jul 17, 12:55 UTCJul 17, 13:40 UTC45m
2026-07-16 AUB148 AUO → AUO Jul 16, 20:55 UTCJul 16, 22:19 UTC1h 25m
2026-07-16 AUB148 AUO → AUO Jul 16, 14:25 UTCJul 16, 16:49 UTC2h 25m
2026-07-15 AUB148 AUO → AUO Jul 15, 20:40 UTCJul 15, 22:25 UTC1h 45m
2026-07-14 AUB148 AUO → AUO Jul 14, 15:00 UTCJul 14, 16:25 UTC1h 25m
2026-07-13 AUB148 AUO → AUO Jul 13, 17:45 UTCJul 13, 18:50 UTC1h 5m
2026-07-11 AUB148 AUO → AUO Jul 11, 15:40 UTCJul 11, 16:50 UTC1h 10m
2026-07-11 AUB148 AUO → AUO Jul 11, 02:40 UTCJul 11, 02:45 UTC5m
2026-07-11 AUB148 AUO → AUO Jul 11, 01:45 UTCJul 11, 02:25 UTC40m
2026-07-10 AUB148 AUO → AUO Jul 10, 21:00 UTCJul 10, 21:50 UTC50m
2026-07-10 AUB148 AUO → AUO Jul 10, 13:45 UTCJul 10, 14:40 UTC55m
2026-06-29 AUB148 - Jun 29, 19:39 UTCJun 29, 20:04 UTC25m
2026-06-29 AUB148 - Jun 29, 18:34 UTCJun 29, 18:55 UTC20m
2026-06-29 AUB148 AUO → AUO Jun 29, 12:34 UTCJun 29, 13:59 UTC1h 25m
2026-06-26 AUB148 AUO → AUO Jun 26, 23:30 UTCJun 27, 00:44 UTC1h 15m
2026-06-26 AUB148 - Jun 26, 13:30 UTCJun 26, 14:44 UTC1h 15m
2026-06-26 AUB148 - Jun 26, 12:34 UTCJun 26, 12:59 UTC25m
2026-06-26 AUB148 AUO → AUO Jun 26, 04:50 UTCJun 26, 04:59 UTC10m
2026-06-26 AUB148 AUO → AUO Jun 26, 04:00 UTCJun 26, 04:34 UTC35m
2026-06-25 AUB148 AUO → AUO Jun 25, 18:10 UTCJun 25, 19:15 UTC1h 5m
2026-06-25 AUB148 AUO → AUO Jun 25, 12:25 UTCJun 25, 13:50 UTC1h 25m
2026-06-25 AUB148 AUO → AUO Jun 25, 03:40 UTCJun 25, 03:44 UTC5m
2026-06-25 AUB148 AUO → AUO Jun 25, 01:40 UTCJun 25, 03:34 UTC1h 55m
2026-06-24 AUB148 - Jun 24, 22:19 UTCJun 24, 22:29 UTC10m
2026-06-24 AUB148 - Jun 24, 21:19 UTCJun 24, 21:29 UTC10m
2026-06-24 AUB148 - Jun 24, 18:20 UTCJun 24, 19:00 UTC40m
2026-06-24 AUB148 - Jun 24, 16:50 UTCJun 24, 17:05 UTC15m
2026-06-24 AUB148 - Jun 24, 03:15 UTCJun 24, 03:19 UTC5m
2026-06-24 AUB148 AUO → AUO Jun 24, 02:49 UTCJun 24, 03:10 UTC20m
2026-06-24 AUB148 AUO → AUO Jun 24, 01:39 UTCJun 24, 02:30 UTC50m
2026-06-23 AUB148 - Jun 23, 21:24 UTCJun 23, 21:29 UTC5m
2026-06-23 AUB148 - Jun 23, 20:15 UTCJun 23, 20:40 UTC25m
2026-06-23 AUB148 AUO → AUO Jun 23, 15:55 UTCJun 23, 17:04 UTC1h 10m
2026-06-22 AUB148 AUO → AUO Jun 22, 22:24 UTCJun 22, 23:50 UTC1h 25m
2026-06-12 AUB148 AUO → AUO Jun 12, 20:25 UTCJun 12, 21:30 UTC1h 5m
2026-06-12 AUB148 AUO → AUO Jun 12, 14:01 UTCJun 12, 15:05 UTC1h 5m
2026-06-10 AUB148 - Jun 10, 21:05 UTCJun 10, 21:15 UTC10m
2026-06-10 AUB148 - Jun 10, 19:35 UTCJun 10, 20:10 UTC35m
2026-06-05 AUB148 AUO → AUO Jun 5, 23:30 UTCJun 6, 00:40 UTC1h 10m
2026-06-05 AUB148 - Jun 5, 16:40 UTCJun 5, 18:35 UTC1h 55m
2026-06-05 AUB148 - Jun 5, 15:45 UTCJun 5, 16:30 UTC45m
2026-06-04 AUB148 - Jun 4, 23:05 UTCJun 4, 23:25 UTC20m
2026-06-04 AUB148 - Jun 4, 20:45 UTCJun 4, 20:55 UTC10m
2026-06-04 AUB148 AUO → AUO Jun 4, 15:45 UTCJun 4, 17:10 UTC1h 25m
2026-06-04 AUB148 AUO → AUO Jun 4, 01:15 UTCJun 4, 02:25 UTC1h 10m
2026-06-03 AUB148 AUO → AUO Jun 3, 16:55 UTCJun 3, 19:10 UTC2h 15m
2026-06-03 AUB148 AUO → AUO Jun 3, 03:00 UTCJun 3, 03:05 UTC5m
2026-06-03 AUB148 AUO → AUO Jun 3, 02:45 UTCJun 3, 02:50 UTC5m
2026-06-03 AUB148 AUO → AUO Jun 3, 01:55 UTCJun 3, 02:40 UTC45m

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 N858WK page for operator, model, and routing details .

Mode-S ABC70E frequently asked

What is Mode-S code ABC70E?
ABC70E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N858WK.
Where is Mode-S ABC70E registered?
Mode-S code ABC70E 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 ABC70E broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABC70E, octal 52743416, decimal 11,257,614.
What flights does ABC70E operate?
Mode-S ABC70E has broadcast 1 distinct callsign, including AUB148.