Apparatus

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sensors Mode-S transponder

A24720

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N246JQ · EMBRAER ERJ-170-200 (long wing) · operated by DELTA AIR LINES INC

Hex
A24720
Octal
50443440
Decimal
10,635,040
Country
US
Tail
N246JQ
Type
E75L
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
719
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A24720.

Country allocation

The ICAO 24-bit address A24720 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
RPA5689 - 9 2026-07-02
RPA5678 - 9 2026-07-20
RPA5665 Republic Airlines 9 2026-07-23
RPA5600 - 9 2026-07-13
RPA5828 - 8 2026-07-11
RPA5811 Republic Airlines 8 2026-06-04
RPA5706 Republic Airlines 8 2026-07-24
RPA5698 Republic Airlines 8 2026-07-22
RPA5688 - 8 2026-07-10
RPA5674 - 8 2026-07-07
RPA5653 - 8 2026-07-03
RPA5832 - 7 2026-07-07
RPA5812 - 7 2026-06-28
RPA5793 Republic Airlines 7 2026-07-26
RPA5693 Republic Airlines 7 2026-07-21
RPA5615 - 7 2026-06-26
RPA5592 Republic Airlines 7 2026-06-12
RPA5859 - 6 2026-07-01
RPA5857 Republic Airlines 6 2026-05-31
RPA5853 - 6 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA5713 BOS → BWI Jul 26, 21:30 UTCJul 26, 22:00 UTC30m
2026-07-26 RPA5682 BOS → PHL Jul 26, 18:50 UTCJul 26, 20:10 UTC1h 20m
2026-07-26 RPA5809 CLE → BOS Jul 26, 15:55 UTCJul 26, 17:00 UTC1h 5m
2026-07-26 RPA5809 CLE → BOS Jul 26, 13:20 UTCJul 26, 14:40 UTC1h 20m
2026-07-26 RPA5793 BOS → CLT Jul 26, 11:05 UTCJul 26, 11:40 UTC35m
2026-07-26 RPA5793 BOS → CLT Jul 26, 11:03 UTCJul 26, 11:40 UTC37m
2026-07-25 RPA5767 BOS → JFK Jul 25, 20:55 UTCJul 25, 21:50 UTC55m
2026-07-25 RPA5767 BOS → JFK Jul 25, 18:40 UTCJul 25, 19:15 UTC35m
2026-07-25 RPA5712 SAV → BOS Jul 25, 16:25 UTCJul 25, 17:20 UTC55m
2026-07-25 RPA5712 SAV → BOS Jul 25, 14:50 UTCJul 25, 15:25 UTC35m
2026-07-25 RPA5849 BOS → HPN Jul 25, 00:15 UTCJul 25, 01:00 UTC45m
2026-07-24 RPA5706 ORF → LGA Jul 24, 21:55 UTCJul 24, 22:40 UTC45m
2026-07-24 RPA5706 ORF → LGA Jul 24, 19:25 UTCJul 24, 20:25 UTC1h 0m
2026-07-24 RPA5758 CMH → LGA Jul 24, 17:40 UTCJul 24, 18:10 UTC30m
2026-07-24 RPA5686 JFK → JAX Jul 24, 15:20 UTCJul 24, 16:30 UTC1h 10m
2026-07-24 RPA5686 JFK → JAX Jul 24, 12:10 UTCJul 24, 13:30 UTC1h 20m
2026-07-24 RPA5840 JAX → LGA Jul 24, 02:10 UTCJul 24, 02:55 UTC45m
2026-07-24 RPA5840 JAX → LGA Jul 24, 02:08 UTCJul 24, 02:49 UTC41m
2026-07-23 RPA5665 JFK → DCA Jul 23, 23:15 UTCJul 24, 00:20 UTC1h 5m
2026-07-23 RPA5665 JFK → DCA Jul 23, 21:00 UTCJul 23, 22:10 UTC1h 10m
2026-07-23 RPA5665 JFK → DCA Jul 23, 20:45 UTCJul 23, 20:55 UTC10m
2026-07-23 RPA5668 JFK → DCA Jul 23, 18:20 UTCJul 23, 19:30 UTC1h 10m
2026-07-23 RPA5668 JFK → DCA Jul 23, 18:18 UTCJul 23, 19:19 UTC1h 1m
2026-07-23 RPA5668 JFK → DCA Jul 23, 15:55 UTCJul 23, 17:10 UTC1h 15m
2026-07-23 RPA5785 BOS → RDU Jul 23, 13:30 UTCJul 23, 14:05 UTC35m
2026-07-23 RPA5652 BNA → LGA Jul 23, 10:05 UTCJul 23, 11:50 UTC1h 45m
2026-07-22 RPA5636 BOS → BWI Jul 22, 23:50 UTCJul 23, 01:35 UTC1h 45m
2026-07-22 RPA5726 RIC → BOS Jul 22, 21:43 UTCJul 22, 22:35 UTC52m
2026-07-22 RPA5726 RIC → BOS Jul 22, 21:45 UTCJul 22, 22:40 UTC55m
2026-07-22 RPA5597 EWR → BOS Jul 22, 17:30 UTCJul 22, 19:45 UTC2h 15m
2026-07-22 RPA5597 EWR → BOS Jul 22, 13:55 UTCJul 22, 16:35 UTC2h 40m
2026-07-22 RPA5698 CLT → LGA Jul 22, 11:20 UTCJul 22, 12:20 UTC1h 0m
2026-07-22 RPA5698 CLT → LGA Jul 22, 11:12 UTCJul 22, 12:20 UTC1h 8m
2026-07-21 RPA5693 CHS → BOS Jul 21, 14:30 UTCJul 21, 16:00 UTC1h 30m
2026-07-21 RPA5698 CLT → LGA Jul 21, 11:25 UTCJul 21, 12:35 UTC1h 10m
2026-07-21 RPA5743 - Jul 21, 02:20 UTCJul 21, 03:05 UTC45m
2026-07-20 RPA5856 ORF → JFK Jul 20, 23:40 UTCJul 21, 00:30 UTC50m
2026-07-20 RPA5856 - Jul 20, 21:40 UTCJul 20, 22:35 UTC55m
2026-07-20 RPA5808 LGA → CLT Jul 20, 18:45 UTCJul 20, 19:35 UTC50m
2026-07-20 RPA5678 - Jul 20, 15:55 UTCJul 20, 17:10 UTC1h 15m
2026-07-20 RPA5678 PIT → BOS Jul 20, 15:54 UTCJul 20, 17:10 UTC1h 16m
2026-07-20 RPA5678 - Jul 20, 12:35 UTCJul 20, 13:55 UTC1h 20m
2026-07-20 RPA5740 - Jul 20, 10:15 UTCJul 20, 11:10 UTC55m
2026-07-20 RPA5610 - Jul 20, 04:40 UTCJul 20, 05:05 UTC25m
2026-07-20 RPA5610 - Jul 20, 04:05 UTCJul 20, 04:35 UTC30m
2026-07-20 RPA5610 BOS → PHL Jul 20, 04:03 UTCJul 20, 05:05 UTC1h 2m
2026-07-19 RPA5738 LGA → BNH Jul 19, 22:45 UTCJul 19, 23:20 UTC35m
2026-07-19 RPA5715 ORD → BOS Jul 19, 20:20 UTCJul 19, 21:15 UTC55m
2026-07-19 RPA5715 ORD → BOS Jul 19, 20:19 UTCJul 19, 21:09 UTC50m
2026-07-19 RPA5715 ORD → BOS Jul 19, 18:00 UTCJul 19, 18:55 UTC55m

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 N246JQ page for operator, model, and routing details .

Mode-S A24720 frequently asked

What is Mode-S code A24720?
A24720 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N246JQ.
Where is Mode-S A24720 registered?
Mode-S code A24720 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 A24720 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A24720, octal 50443440, decimal 10,635,040.
What flights does A24720 operate?
Mode-S A24720 has broadcast 20 distinct callsigns, including RPA5689, RPA5678, RPA5665, RPA5600, RPA5828.