Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB2115

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N816QS · CESSNA 700 Citation Longitude · operated by NETJETS SALES INC, QUINN SEAN, QUINN ANGELA, PARSIFUS V LLC, CAMBRIDGE INFORMATION GROUP INC, WILMINGTON TRUST CO TRUSTEE

Hex
AB2115
Octal
52620425
Decimal
11,215,125
Country
US
Tail
N816QS
Type
C700
No current signal · last broadcast 1d ago
Flights observed
225
Distinct callsigns
3
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AB2115.

Country allocation

The ICAO 24-bit address AB2115 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 3 distinct

Callsign Airline Flights Last seen
EJA816 - 208 2026-07-12
N816QS - 15 2026-07-02
EJA4840 - 2 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 EJA816 - Jul 12, 21:30 UTCJul 12, 22:05 UTC35m
2026-07-12 EJA816 - Jul 12, 17:35 UTCJul 12, 20:25 UTC2h 50m
2026-07-12 EJA816 SJC → NUQ Jul 12, 15:55 UTCJul 12, 16:05 UTC10m
2026-07-11 EJA816 - Jul 11, 21:00 UTCJul 11, 21:15 UTC15m
2026-07-11 EJA816 - Jul 11, 18:40 UTCJul 11, 20:20 UTC1h 40m
2026-07-11 EJA816 - Jul 11, 16:10 UTCJul 11, 16:30 UTC20m
2026-07-11 EJA816 - Jul 11, 12:45 UTCJul 11, 14:05 UTC1h 20m
2026-07-10 EJA816 - Jul 10, 19:00 UTCJul 10, 19:35 UTC35m
2026-07-10 EJA816 - Jul 10, 16:45 UTCJul 10, 18:20 UTC1h 35m
2026-07-10 EJA816 - Jul 10, 14:15 UTCJul 10, 15:05 UTC50m
2026-07-10 EJA816 - Jul 10, 12:35 UTCJul 10, 13:25 UTC50m
2026-07-10 EJA816 - Jul 10, 10:55 UTCJul 10, 11:05 UTC10m
2026-07-09 EJA816 - Jul 9, 19:35 UTCJul 9, 22:50 UTC3h 15m
2026-07-09 EJA816 - Jul 9, 16:45 UTCJul 9, 16:55 UTC10m
2026-07-09 EJA816 - Jul 9, 12:25 UTCJul 9, 15:35 UTC3h 10m
2026-07-08 EJA4840 DCA → BWI Jul 8, 21:55 UTCJul 8, 22:15 UTC20m
2026-07-07 EJA4840 - Jul 7, 22:35 UTCJul 8, 00:30 UTC1h 55m
2026-07-07 EJA816 BOS → SUX Jul 7, 12:45 UTCJul 7, 15:05 UTC2h 20m
2026-07-07 EJA816 BOS → SUX Jul 7, 00:00 UTCJul 7, 01:25 UTC1h 25m
2026-07-06 EJA816 BOS → SUX Jul 6, 21:40 UTCJul 6, 23:05 UTC1h 25m
2026-07-06 EJA816 BOS → SUX Jul 6, 16:45 UTCJul 6, 18:50 UTC2h 5m
2026-07-06 EJA816 BOS → SUX Jul 6, 14:30 UTCJul 6, 15:20 UTC50m
2026-07-06 EJA816 BOS → SUX Jul 6, 12:35 UTCJul 6, 13:40 UTC1h 5m
2026-07-06 EJA816 BOS → SUX Jul 6, 11:05 UTCJul 6, 11:35 UTC30m
2026-07-05 EJA816 BOS → SUX Jul 5, 20:55 UTCJul 5, 23:15 UTC2h 20m
2026-07-05 EJA816 BOS → SUX Jul 5, 19:30 UTCJul 5, 20:10 UTC40m
2026-07-03 EJA816 BOS → SUX Jul 3, 18:05 UTCJul 3, 19:40 UTC1h 35m
2026-07-03 EJA816 BOS → SUX Jul 3, 01:30 UTCJul 3, 02:00 UTC30m
2026-07-02 EJA816 BOS → SUX Jul 2, 22:40 UTCJul 3, 00:55 UTC2h 15m
2026-07-02 N816QS - Jul 2, 21:10 UTCJul 2, 21:55 UTC45m
2026-07-01 N816QS - Jul 1, 20:50 UTCJul 1, 23:45 UTC2h 55m
2026-07-01 EJA816 BOS → SUX Jul 1, 16:50 UTCJul 1, 17:25 UTC35m
2026-07-01 EJA816 BOS → SUX Jul 1, 14:10 UTCJul 1, 15:55 UTC1h 45m
2026-06-30 EJA816 BOS → SUX Jun 30, 22:15 UTCJun 30, 22:55 UTC40m
2026-06-30 EJA816 BOS → SUX Jun 30, 17:40 UTCJun 30, 18:15 UTC35m
2026-06-30 EJA816 BOS → SUX Jun 30, 12:35 UTCJun 30, 14:15 UTC1h 40m
2026-06-29 EJA816 BOS → SUX Jun 29, 17:49 UTCJun 29, 19:54 UTC2h 5m
2026-06-29 EJA816 BOS → SUX Jun 29, 11:14 UTCJun 29, 15:14 UTC4h 0m
2026-06-28 EJA816 BOS → SUX Jun 28, 21:45 UTCJun 28, 22:04 UTC20m
2026-06-28 EJA816 BOS → SUX Jun 28, 20:09 UTCJun 28, 20:54 UTC45m
2026-06-28 EJA816 BOS → SUX Jun 28, 14:54 UTCJun 28, 16:55 UTC2h 0m
2026-06-27 N816QS - Jun 27, 19:49 UTCJun 27, 20:34 UTC45m
2026-06-27 N816QS - Jun 27, 17:04 UTCJun 27, 18:04 UTC1h 0m
2026-06-27 EJA816 BOS → SUX Jun 27, 14:14 UTCJun 27, 15:45 UTC1h 30m
2026-06-21 EJA816 BOS → SUX Jun 21, 21:24 UTCJun 21, 22:49 UTC1h 25m
2026-06-21 EJA816 BOS → SUX Jun 21, 18:10 UTCJun 21, 18:39 UTC30m
2026-06-21 EJA816 BOS → SUX Jun 21, 15:09 UTCJun 21, 17:15 UTC2h 5m
2026-06-21 EJA816 BOS → SUX Jun 21, 13:00 UTCJun 21, 13:34 UTC35m
2026-06-19 EJA816 BOS → SUX Jun 19, 18:09 UTCJun 19, 19:49 UTC1h 40m
2026-06-19 EJA816 BOS → SUX Jun 19, 15:34 UTCJun 19, 16:19 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 N816QS page for operator, model, and routing details .

Mode-S AB2115 frequently asked

What is Mode-S code AB2115?
AB2115 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N816QS.
Where is Mode-S AB2115 registered?
Mode-S code AB2115 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 AB2115 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB2115, octal 52620425, decimal 11,215,125.
What flights does AB2115 operate?
Mode-S AB2115 has broadcast 3 distinct callsigns, including EJA816, N816QS, EJA4840.