Apparatus

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sensors Mode-S transponder

A2147C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N233JQ · EMBRAER ERJ-170-200 (long wing) · operated by DELTA AIR LINES INC

Hex
A2147C
Octal
50412174
Decimal
10,622,076
Country
US
Tail
N233JQ
Type
E75L
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
719
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A2147C.

Country allocation

The ICAO 24-bit address A2147C 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 20 distinct

Callsign Airline Flights Last seen
RPA5680 Republic Airlines 14 2026-07-26
RPA5837 Republic Airlines 11 2026-05-29
RPA5688 Republic Airlines 11 2026-07-23
RPA5649 Republic Airlines 11 2026-05-01
RPA5619 Republic Airlines 10 2026-07-24
RPA5615 Republic Airlines 9 2026-07-26
RPA5611 - 9 2026-06-26
RPA5601 Republic Airlines 9 2026-06-15
RPA5594 - 9 2026-07-18
RPA5811 - 8 2026-06-24
RPA5766 - 8 2026-07-14
RPA5764 - 8 2026-06-30
RPA5755 - 8 2026-07-01
RPA5743 Republic Airlines 8 2026-07-26
RPA5739 Republic Airlines 8 2026-07-23
RPA5722 - 8 2026-06-29
RPA5706 - 8 2026-06-21
RPA5679 - 8 2026-06-27
RPA5641 - 8 2026-06-15
RPA5597 - 8 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA5680 BOS → CMH Jul 26, 20:25 UTCJul 26, 21:45 UTC1h 20m
2026-07-26 RPA5615 CLT → JFK Jul 26, 17:10 UTCJul 26, 19:10 UTC2h 0m
2026-07-26 RPA5615 CLT → JFK Jul 26, 13:45 UTCJul 26, 15:50 UTC2h 5m
2026-07-26 RPA5698 CLT → LGA Jul 26, 11:10 UTCJul 26, 12:10 UTC1h 0m
2026-07-26 RPA5743 BOS → BNA Jul 26, 01:50 UTCJul 26, 02:25 UTC35m
2026-07-26 RPA5743 BOS → BNA Jul 26, 01:47 UTCJul 26, 02:23 UTC36m
2026-07-25 RPA5856 IND → LGA Jul 25, 23:00 UTCJul 25, 23:50 UTC50m
2026-07-25 RPA5856 IND → LGA Jul 25, 20:20 UTCJul 25, 21:15 UTC55m
2026-07-25 RPA5808 LGA → CLT Jul 25, 17:50 UTCJul 25, 18:30 UTC40m
2026-07-25 RPA5809 CLE → BOS Jul 25, 15:15 UTCJul 25, 16:20 UTC1h 5m
2026-07-25 RPA5809 CLE → BOS Jul 25, 12:35 UTCJul 25, 13:55 UTC1h 20m
2026-07-25 RPA5765 BOS → BNA Jul 25, 10:10 UTCJul 25, 10:50 UTC40m
2026-07-25 RPA5702 BOS → JAX Jul 25, 01:35 UTCJul 25, 02:25 UTC50m
2026-07-24 RPA5647 OMA → LGA Jul 24, 22:15 UTCJul 25, 00:00 UTC1h 45m
2026-07-24 RPA5826 IAD → LGA Jul 24, 20:20 UTCJul 24, 21:00 UTC40m
2026-07-24 RPA5826 IAD → LGA Jul 24, 20:17 UTCJul 24, 20:59 UTC42m
2026-07-24 RPA5774 BOS → JFK Jul 24, 18:25 UTCJul 24, 19:05 UTC40m
2026-07-24 RPA5774 BOS → JFK Jul 24, 16:35 UTCJul 24, 17:05 UTC30m
2026-07-24 RPA5607 BOS → PHL Jul 24, 14:40 UTCJul 24, 15:20 UTC40m
2026-07-24 RPA5605 LGA → DCA Jul 24, 12:45 UTCJul 24, 13:45 UTC1h 0m
2026-07-24 RPA5836 BOS → EWR Jul 24, 10:10 UTCJul 24, 10:50 UTC40m
2026-07-24 RPA5619 JFK → IAD Jul 24, 00:15 UTCJul 24, 02:00 UTC1h 45m
2026-07-24 RPA5619 JFK → IAD Jul 24, 00:11 UTCJul 24, 01:59 UTC1h 48m
2026-07-23 RPA5619 JFK → IAD Jul 23, 20:40 UTCJul 23, 22:45 UTC2h 5m
2026-07-23 RPA5619 JFK → IAD Jul 23, 20:38 UTCJul 23, 22:42 UTC2h 4m
2026-07-23 RPA5739 JFK → CMH Jul 23, 18:30 UTCJul 23, 19:20 UTC50m
2026-07-23 RPA5688 SDF → LGA Jul 23, 14:45 UTCJul 23, 16:30 UTC1h 45m
2026-07-23 RPA5688 SDF → LGA Jul 23, 14:44 UTCJul 23, 16:44 UTC2h 0m
2026-07-23 RPA5688 SDF → LGA Jul 23, 11:30 UTCJul 23, 13:35 UTC2h 5m
2026-07-23 RPA5840 JAX → LGA Jul 23, 02:45 UTCJul 23, 03:35 UTC50m
2026-07-22 RPA5665 JFK → DCA Jul 22, 23:45 UTCJul 23, 01:00 UTC1h 15m
2026-07-22 RPA5665 JFK → DCA Jul 22, 20:45 UTCJul 22, 22:15 UTC1h 30m
2026-07-22 RPA5739 JFK → CMH Jul 22, 18:15 UTCJul 22, 19:05 UTC50m
2026-07-22 RPA5662 DCA → LGA Jul 22, 15:55 UTCJul 22, 16:40 UTC45m
2026-07-22 RPA5662 DCA → LGA Jul 22, 15:54 UTCJul 22, 16:39 UTC45m
2026-07-22 RPA5662 DCA → LGA Jul 22, 14:15 UTCJul 22, 14:50 UTC35m
2026-07-22 RPA5735 LGA → DCA Jul 22, 12:15 UTCJul 22, 13:00 UTC45m
2026-07-22 RPA5852 LGA → CLT Jul 22, 10:14 UTCJul 22, 10:57 UTC43m
2026-07-22 RPA5831 BOS → LGA Jul 22, 00:57 UTCJul 22, 01:39 UTC42m
2026-07-22 RPA5831 BOS → LGA Jul 22, 01:00 UTCJul 22, 01:45 UTC45m
2026-07-21 RPA5861 BOS → CLT Jul 21, 20:30 UTCJul 21, 22:55 UTC2h 25m
2026-07-21 RPA5621 - Jul 21, 16:35 UTCJul 21, 18:55 UTC2h 20m
2026-07-21 RPA5652 - Jul 21, 10:10 UTCJul 21, 11:45 UTC1h 35m
2026-07-21 RPA5832 - Jul 21, 00:35 UTCJul 21, 01:25 UTC50m
2026-07-20 RPA5827 - Jul 20, 21:50 UTCJul 20, 22:30 UTC40m
2026-07-20 RPA5827 IND → DTW Jul 20, 21:47 UTCJul 20, 22:31 UTC44m
2026-07-20 RPA5627 BOS → IND Jul 20, 18:10 UTCJul 20, 20:00 UTC1h 50m
2026-07-20 RPA5674 DCA → BOS Jul 20, 15:25 UTCJul 20, 16:45 UTC1h 20m
2026-07-20 RPA5674 DCA → BOS Jul 20, 12:50 UTCJul 20, 14:20 UTC1h 30m
2026-07-20 RPA5710 CMH → LGA Jul 20, 10:15 UTCJul 20, 11:20 UTC1h 5m

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 N233JQ page for operator, model, and routing details .

Mode-S A2147C frequently asked

What is Mode-S code A2147C?
A2147C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N233JQ.
Where is Mode-S A2147C registered?
Mode-S code A2147C 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 A2147C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2147C, octal 50412174, decimal 10,622,076.
What flights does A2147C operate?
Mode-S A2147C has broadcast 20 distinct callsigns, including RPA5680, RPA5837, RPA5688, RPA5649, RPA5619.