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sensors Mode-S transponder

A1E946

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N222JQ · EMBRAER ERJ-170-200 (long wing) · operated by DELTA AIR LINES INC

Hex
A1E946
Octal
50364506
Decimal
10,611,014
Country
US
Tail
N222JQ
Type
E75L
No current signal · last broadcast Jul 25, 17:25 UTC
Flights observed
714
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 17:25 UTC

Last known position

Most recent position reported by Mode-S A1E946.

Country allocation

The ICAO 24-bit address A1E946 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
RPA5708 - 17 2026-07-13
RPA5777 - 11 2026-07-19
RPA5707 - 11 2026-07-13
RPA5638 Republic Airlines 10 2026-06-26
RPA5615 - 10 2026-06-24
RPA5600 Republic Airlines 9 2026-06-09
RPA5764 - 8 2026-07-01
RPA5701 - 8 2026-07-10
RPA5829 - 7 2026-07-13
RPA5796 - 7 2026-07-10
RPA5774 Republic Airlines 7 2026-06-14
RPA5769 - 7 2026-07-12
RPA5692 - 7 2026-06-22
RPA5689 - 7 2026-07-08
RPA5688 Republic Airlines 7 2026-06-10
RPA5667 Republic Airlines 7 2026-06-09
RPA5641 - 7 2026-07-14
RPA5592 - 7 2026-07-17
RPA5860 Republic Airlines 6 2026-07-25
RPA5843 - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 RPA5860 BOS → CLE Jul 25, 17:14 UTCJul 25, 18:17 UTC1h 3m
2026-07-25 RPA5860 BOS → CLE Jul 25, 14:40 UTCJul 25, 15:20 UTC40m
2026-07-25 RPA5652 BNA → LGA Jul 25, 11:05 UTCJul 25, 12:40 UTC1h 35m
2026-07-24 RPA5636 BOS → BWI Jul 24, 22:30 UTCJul 25, 00:15 UTC1h 45m
2026-07-24 RPA5726 RIC → BOS Jul 24, 20:15 UTCJul 24, 21:00 UTC45m
2026-07-24 RPA5597 EWR → BOS Jul 24, 16:35 UTCJul 24, 18:45 UTC2h 10m
2026-07-24 RPA5597 EWR → BOS Jul 24, 16:31 UTCJul 24, 18:42 UTC2h 11m
2026-07-24 RPA5597 EWR → BOS Jul 24, 13:10 UTCJul 24, 15:20 UTC2h 10m
2026-07-24 RPA5690 PIT → BOS Jul 24, 10:10 UTCJul 24, 11:25 UTC1h 15m
2026-07-24 RPA5690 PIT → BOS Jul 24, 10:08 UTCJul 24, 11:22 UTC1h 14m
2026-07-24 RPA5722 BOS → LGA Jul 24, 02:10 UTCJul 24, 03:05 UTC55m
2026-07-24 RPA5716 BOS → JFK Jul 24, 00:30 UTCJul 24, 01:15 UTC45m
2026-07-23 RPA5595 BOS → JFK Jul 23, 19:15 UTCJul 23, 19:55 UTC40m
2026-07-23 RPA5823 JFK → CLT Jul 23, 16:10 UTCJul 23, 17:10 UTC1h 0m
2026-07-23 RPA5754 MCI → BOS Jul 23, 14:10 UTCJul 23, 14:50 UTC40m
2026-07-23 RPA5824 LGA → MCI Jul 23, 12:05 UTCJul 23, 13:00 UTC55m
2026-07-23 RPA5832 - Jul 23, 00:00 UTCJul 23, 00:50 UTC50m
2026-07-22 RPA5832 DTW → SDF Jul 22, 23:55 UTCJul 23, 00:52 UTC57m
2026-07-22 RPA5827 - Jul 22, 21:45 UTCJul 22, 22:20 UTC35m
2026-07-22 RPA5627 BOS → IND Jul 22, 18:32 UTCJul 22, 20:43 UTC2h 11m
2026-07-22 RPA5627 - Jul 22, 18:35 UTCJul 22, 19:30 UTC55m
2026-07-22 RPA5678 - Jul 22, 15:55 UTCJul 22, 17:05 UTC1h 10m
2026-07-22 RPA5678 PIT → BOS Jul 22, 15:54 UTCJul 22, 17:07 UTC1h 13m
2026-07-22 RPA5678 - Jul 22, 13:40 UTCJul 22, 15:05 UTC1h 25m
2026-07-22 RPA5740 PHL → BOS Jul 22, 11:35 UTCJul 22, 12:30 UTC55m
2026-07-21 RPA5888 SDF → MSN Jul 21, 20:30 UTCJul 21, 22:05 UTC1h 35m
2026-07-21 RPA5888 SDF → MSN Jul 21, 20:25 UTCJul 21, 22:22 UTC1h 57m
2026-07-21 RPA5614 LGA → OKC Jul 21, 18:25 UTCJul 21, 20:12 UTC1h 47m
2026-07-21 RPA5614 LGA → OKC Jul 21, 17:30 UTCJul 21, 17:50 UTC20m
2026-07-21 RPA5614 LGA → OKC Jul 21, 15:35 UTCJul 21, 17:25 UTC1h 50m
2026-07-21 RPA5663 BOS → JFK Jul 21, 10:20 UTCJul 21, 11:50 UTC1h 30m
2026-07-21 RPA5663 BOS → JFK Jul 21, 10:18 UTCJul 21, 11:51 UTC1h 33m
2026-07-21 RPA5838 DTW → CMH Jul 21, 00:10 UTCJul 21, 00:45 UTC35m
2026-07-21 RPA5838 DTW → CMH Jul 21, 00:09 UTCJul 21, 00:38 UTC29m
2026-07-20 RPA5766 LGA → BOS Jul 20, 22:35 UTCJul 20, 23:15 UTC40m
2026-07-20 RPA5685 JFK → PIT Jul 20, 19:52 UTCJul 20, 20:53 UTC1h 1m
2026-07-20 RPA5685 - Jul 20, 19:55 UTCJul 20, 21:00 UTC1h 5m
2026-07-20 RPA5859 JFK → IAD Jul 20, 17:35 UTCJul 20, 18:10 UTC35m
2026-07-20 RPA5859 JFK → IAD Jul 20, 16:00 UTCJul 20, 16:40 UTC40m
2026-07-20 RPA5720 BOS → JFK Jul 20, 13:55 UTCJul 20, 14:49 UTC54m
2026-07-20 RPA5720 BOS → JFK Jul 20, 13:55 UTCJul 20, 14:50 UTC55m
2026-07-20 RPA5793 LGA → BOS Jul 20, 11:20 UTCJul 20, 12:05 UTC45m
2026-07-20 RPA5768 DCA → LGA Jul 20, 03:50 UTCJul 20, 04:30 UTC40m
2026-07-20 RPA5768 DCA → LGA Jul 20, 03:49 UTCJul 20, 04:25 UTC36m
2026-07-20 RPA5786 IND → LGA Jul 20, 01:30 UTCJul 20, 02:55 UTC1h 25m
2026-07-19 RPA5777 DCA → BNA Jul 19, 21:55 UTCJul 19, 23:25 UTC1h 30m
2026-07-19 RPA5777 DCA → BNA Jul 19, 21:55 UTCJul 19, 23:25 UTC1h 30m
2026-07-19 RPA5857 BOS → DCA Jul 19, 17:00 UTCJul 19, 18:20 UTC1h 20m
2026-07-19 RPA5798 - Jul 19, 11:15 UTCJul 19, 11:30 UTC15m
2026-07-19 RPA5798 JFK → BOS Jul 19, 11:13 UTCJul 19, 11:51 UTC38m

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 N222JQ page for operator, model, and routing details .

Mode-S A1E946 frequently asked

What is Mode-S code A1E946?
A1E946 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N222JQ.
Where is Mode-S A1E946 registered?
Mode-S code A1E946 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 A1E946 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 17:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1E946, octal 50364506, decimal 10,611,014.
What flights does A1E946 operate?
Mode-S A1E946 has broadcast 20 distinct callsigns, including RPA5708, RPA5777, RPA5707, RPA5638, RPA5615.