Apparatus

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sensors Mode-S transponder

A1F46B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N225JQ · EMBRAER ERJ-170-200 (long wing) · operated by DELTA AIR LINES INC

Hex
A1F46B
Octal
50372153
Decimal
10,613,867
Country
US
Tail
N225JQ
Type
E75L
No current signal · last broadcast 5h ago
Flights observed
611
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A1F46B.

Country allocation

The ICAO 24-bit address A1F46B 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
RPA5731 - 11 2026-06-26
RPA5597 - 10 2026-07-07
RPA5834 - 9 2026-06-29
RPA5711 - 9 2026-07-04
RPA5621 - 9 2026-06-17
RPA5860 Republic Airlines 7 2026-06-20
RPA5805 - 7 2026-06-29
RPA5689 - 7 2026-06-30
RPA5657 - 7 2026-06-26
RPA5636 - 7 2026-07-13
RPA5828 Republic Airlines 6 2026-06-24
RPA5758 - 6 2026-07-05
RPA5735 - 6 2026-07-01
RPA5706 Republic Airlines 6 2026-06-09
RPA5703 - 6 2026-06-28
RPA5652 - 6 2026-07-08
RPA5644 - 6 2026-06-15
RPA5641 - 6 2026-07-06
RPA5623 - 6 2026-07-10
RPA5845 - 5 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 RPA5636 - Jul 13, 22:40 UTCJul 14, 00:15 UTC1h 35m
2026-07-13 RPA5726 BOS → LGA Jul 13, 20:25 UTCJul 13, 21:10 UTC45m
2026-07-13 RPA5668 - Jul 13, 17:55 UTCJul 13, 18:55 UTC1h 0m
2026-07-13 RPA5668 BOS → BWI Jul 13, 15:30 UTCJul 13, 16:35 UTC1h 5m
2026-07-13 RPA5785 LGA → BNH Jul 13, 13:45 UTCJul 13, 14:25 UTC40m
2026-07-13 RPA5625 - Jul 13, 11:05 UTCJul 13, 12:50 UTC1h 45m
2026-07-13 RPA5780 LGA → MKE Jul 13, 01:15 UTCJul 13, 02:55 UTC1h 40m
2026-07-12 RPA5590 - Jul 12, 23:00 UTCJul 13, 00:10 UTC1h 10m
2026-07-12 RPA5590 - Jul 12, 21:05 UTCJul 12, 21:55 UTC50m
2026-07-12 RPA5830 ATL → HHH Jul 12, 18:45 UTCJul 12, 19:27 UTC42m
2026-07-12 RPA5817 - Jul 12, 16:25 UTCJul 12, 17:10 UTC45m
2026-07-12 RPA5618 - Jul 12, 13:25 UTCJul 12, 15:01 UTC1h 35m
2026-07-12 RPA5618 LGA → HHH Jul 12, 13:23 UTCJul 12, 14:53 UTC1h 30m
2026-07-12 RPA5763 DCA → LGA Jul 12, 03:05 UTCJul 12, 03:50 UTC45m
2026-07-12 RPA5699 JFK → DCA Jul 12, 01:40 UTCJul 12, 02:30 UTC50m
2026-07-11 RPA5835 IAD → JFK Jul 11, 17:27 UTCJul 11, 18:28 UTC1h 1m
2026-07-11 RPA5835 IAD → JFK Jul 11, 17:30 UTCJul 11, 18:25 UTC55m
2026-07-11 RPA5835 JFK → IAD Jul 11, 14:35 UTCJul 11, 15:30 UTC55m
2026-07-11 RPA5741 - Jul 11, 11:20 UTCJul 11, 12:45 UTC1h 25m
2026-07-11 RPA5741 ORD → JFK Jul 11, 11:20 UTCJul 11, 12:57 UTC1h 37m
2026-07-11 RPA5640 JFK → ORD Jul 11, 02:20 UTCJul 11, 04:25 UTC2h 5m
2026-07-11 RPA5713 DCA → JFK Jul 11, 00:30 UTCJul 11, 01:15 UTC45m
2026-07-10 RPA5709 LGA → DCA Jul 10, 20:00 UTCJul 10, 20:45 UTC45m
2026-07-10 RPA5623 - Jul 10, 16:00 UTCJul 10, 17:50 UTC1h 50m
2026-07-10 RPA5623 - Jul 10, 12:50 UTCJul 10, 14:40 UTC1h 50m
2026-07-10 RPA5700 - Jul 10, 10:05 UTCJul 10, 11:20 UTC1h 15m
2026-07-10 RPA5629 BOS → CMH Jul 10, 03:15 UTCJul 10, 04:50 UTC1h 35m
2026-07-09 RPA5829 EWR → BOS Jul 9, 22:09 UTCJul 9, 22:52 UTC43m
2026-07-09 RPA5829 EWR → BOS Jul 9, 22:10 UTCJul 9, 22:55 UTC45m
2026-07-09 RPA5829 BOS → EWR Jul 9, 19:00 UTCJul 9, 19:55 UTC55m
2026-07-09 RPA5626 CMH → LGA Jul 9, 14:05 UTCJul 9, 15:55 UTC1h 50m
2026-07-09 RPA5626 CMH → LGA Jul 9, 10:45 UTCJul 9, 12:35 UTC1h 50m
2026-07-09 RPA5714 PHL → BOS Jul 9, 00:05 UTCJul 9, 00:55 UTC50m
2026-07-08 RPA5714 BOS → PHL Jul 8, 21:40 UTCJul 8, 22:45 UTC1h 5m
2026-07-08 RPA5727 LGA → BOS Jul 8, 20:00 UTCJul 8, 20:40 UTC40m
2026-07-08 RPA5623 - Jul 8, 16:55 UTCJul 8, 18:40 UTC1h 45m
2026-07-08 RPA5623 - Jul 8, 14:10 UTCJul 8, 15:45 UTC1h 35m
2026-07-08 RPA5652 - Jul 8, 11:20 UTCJul 8, 12:55 UTC1h 35m
2026-07-08 RPA5636 LGA → SDF Jul 8, 00:00 UTCJul 8, 01:40 UTC1h 40m
2026-07-07 RPA5726 BOS → LGA Jul 7, 21:40 UTCJul 7, 22:35 UTC55m
2026-07-07 RPA5597 JAX → BOS Jul 7, 17:50 UTCJul 7, 20:20 UTC2h 30m
2026-07-07 RPA5597 - Jul 7, 13:15 UTCJul 7, 15:25 UTC2h 10m
2026-07-07 RPA5684 - Jul 7, 10:20 UTCJul 7, 11:35 UTC1h 15m
2026-07-07 RPA5655 - Jul 7, 03:00 UTCJul 7, 04:35 UTC1h 35m
2026-07-07 RPA5655 BOS → CLE Jul 7, 02:59 UTCJul 7, 04:32 UTC1h 33m
2026-07-06 RPA5641 - Jul 6, 23:10 UTCJul 7, 00:30 UTC1h 20m
2026-07-06 RPA5641 BOS → CLE Jul 6, 19:25 UTCJul 6, 21:00 UTC1h 35m
2026-07-05 RPA5858 ORF → BOS Jul 5, 22:20 UTCJul 5, 23:35 UTC1h 15m
2026-07-05 RPA5858 - Jul 5, 19:50 UTCJul 5, 21:05 UTC1h 15m
2026-07-05 RPA5758 LGA → BOS Jul 5, 18:00 UTCJul 5, 18:35 UTC35m

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 N225JQ page for operator, model, and routing details .

Mode-S A1F46B frequently asked

What is Mode-S code A1F46B?
A1F46B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N225JQ.
Where is Mode-S A1F46B registered?
Mode-S code A1F46B 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 A1F46B broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F46B, octal 50372153, decimal 10,613,867.
What flights does A1F46B operate?
Mode-S A1F46B has broadcast 20 distinct callsigns, including RPA5731, RPA5597, RPA5834, RPA5711, RPA5621.