Apparatus

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sensors Mode-S transponder

A1E1D8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N220JQ · EMBRAER ERJ-170-200 (long wing) · operated by DELTA AIR LINES INC

Hex
A1E1D8
Octal
50360730
Decimal
10,609,112
Country
US
Tail
N220JQ
Type
E75L
No current signal · last broadcast 5h ago
Flights observed
568
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A1E1D8.

Country allocation

The ICAO 24-bit address A1E1D8 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
RPA5641 Republic Airlines 12 2026-06-12
RPA5804 - 8 2026-07-12
RPA5693 - 8 2026-07-11
RPA5861 Republic Airlines 7 2026-06-18
RPA5678 Republic Airlines 7 2026-06-09
RPA5653 Republic Airlines 7 2026-05-17
RPA5615 - 7 2026-07-05
RPA5782 Republic Airlines 6 2026-05-31
RPA5764 - 6 2026-06-26
RPA5658 Republic Airlines 6 2026-06-10
RPA5621 - 6 2026-06-18
RPA5619 - 6 2026-07-04
RPA5598 - 6 2026-06-26
RPA5591 Republic Airlines 6 2026-06-05
RPA5870 - 5 2026-04-17
RPA5850 - 5 2026-07-09
RPA5845 - 5 2026-07-04
RPA5808 Republic Airlines 5 2026-06-09
RPA5787 Republic Airlines 5 2026-06-06
RPA5759 - 5 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RPA5768 DCA → LGA Jul 14, 01:05 UTCJul 14, 01:50 UTC45m
2026-07-14 RPA5768 DCA → LGA Jul 14, 01:05 UTCJul 14, 01:52 UTC47m
2026-07-13 RPA5786 BNA → DCA Jul 13, 22:25 UTCJul 13, 23:45 UTC1h 20m
2026-07-13 RPA5777 - Jul 13, 19:20 UTCJul 13, 20:45 UTC1h 25m
2026-07-13 RPA5857 BOS → DCA Jul 13, 17:10 UTCJul 13, 18:30 UTC1h 20m
2026-07-13 RPA5728 LGA → BOS Jul 13, 14:40 UTCJul 13, 15:20 UTC40m
2026-07-13 RPA5849 BOS → LGA Jul 13, 00:30 UTCJul 13, 01:15 UTC45m
2026-07-12 RPA5798 JFK → BOS Jul 12, 22:55 UTCJul 12, 23:30 UTC35m
2026-07-12 RPA5804 - Jul 12, 20:50 UTCJul 12, 21:30 UTC40m
2026-07-12 RPA5804 - Jul 12, 19:05 UTCJul 12, 19:40 UTC35m
2026-07-12 RPA5624 DCA → JFK Jul 12, 17:11 UTCJul 12, 17:52 UTC41m
2026-07-12 RPA5624 DCA → JFK Jul 12, 17:15 UTCJul 12, 17:55 UTC40m
2026-07-12 RPA5750 JFK → DCA Jul 12, 14:10 UTCJul 12, 15:01 UTC50m
2026-07-12 RPA5802 DCA → JFK Jul 12, 12:01 UTCJul 12, 12:45 UTC45m
2026-07-12 RPA5743 JFK → DCA Jul 12, 03:30 UTCJul 12, 04:15 UTC45m
2026-07-12 RPA5702 BOS → JFK Jul 12, 00:30 UTCJul 12, 01:20 UTC50m
2026-07-11 RPA5706 - Jul 11, 21:30 UTCJul 11, 22:40 UTC1h 10m
2026-07-11 RPA5706 PHL → BOS Jul 11, 21:28 UTCJul 11, 22:41 UTC1h 13m
2026-07-11 RPA5706 - Jul 11, 18:50 UTCJul 11, 20:10 UTC1h 20m
2026-07-11 RPA5693 DCA → BOS Jul 11, 16:20 UTCJul 11, 17:25 UTC1h 5m
2026-07-11 RPA5708 BNA → DCA Jul 11, 13:20 UTCJul 11, 14:50 UTC1h 30m
2026-07-11 RPA5707 DCA → BNA Jul 11, 01:25 UTCJul 11, 02:55 UTC1h 30m
2026-07-11 RPA5707 DCA → BNA Jul 11, 01:22 UTCJul 11, 02:56 UTC1h 34m
2026-07-10 RPA5786 - Jul 10, 22:50 UTCJul 11, 00:25 UTC1h 35m
2026-07-10 RPA5786 BNA → DCA Jul 10, 22:50 UTCJul 11, 00:27 UTC1h 37m
2026-07-10 RPA5777 DCA → BNA Jul 10, 19:35 UTCJul 10, 21:05 UTC1h 30m
2026-07-10 RPA5857 BOS → DCA Jul 10, 17:05 UTCJul 10, 18:25 UTC1h 20m
2026-07-10 RPA5611 DCA → BNH Jul 10, 14:45 UTCJul 10, 15:50 UTC1h 5m
2026-07-10 RPA5611 DCA → BOS Jul 10, 14:44 UTCJul 10, 15:47 UTC1h 3m
2026-07-10 RPA5692 BOS → DCA Jul 10, 12:10 UTCJul 10, 13:25 UTC1h 15m
2026-07-09 RPA5630 - Jul 9, 19:15 UTCJul 9, 21:00 UTC1h 45m
2026-07-09 RPA5630 - Jul 9, 15:45 UTCJul 9, 17:45 UTC2h 0m
2026-07-09 RPA5759 LGA → BOS Jul 9, 12:13 UTCJul 9, 12:55 UTC42m
2026-07-09 RPA5759 LGA → BOS Jul 9, 12:15 UTCJul 9, 13:00 UTC45m
2026-07-09 RPA5840 BOS → LGA Jul 9, 02:27 UTCJul 9, 03:14 UTC47m
2026-07-09 RPA5840 BOS → LGA Jul 9, 02:30 UTCJul 9, 03:15 UTC45m
2026-07-09 RPA5850 LGA → BOS Jul 9, 00:10 UTCJul 9, 00:45 UTC35m
2026-07-08 RPA220 - Jul 8, 21:35 UTCJul 8, 22:55 UTC1h 20m
2026-07-08 RPA5828 BOS → LGA Jul 8, 18:25 UTCJul 8, 19:45 UTC1h 20m
2026-07-08 RPA5854 - Jul 8, 16:20 UTCJul 8, 17:10 UTC50m
2026-07-08 RPA5854 BOS → BOS Jul 8, 15:15 UTCJul 8, 15:25 UTC10m
2026-07-08 RPA5733 JFK → BOS Jul 8, 14:05 UTCJul 8, 14:45 UTC40m
2026-07-08 RPA5656 LGA → BOS Jul 8, 11:15 UTCJul 8, 12:40 UTC1h 25m
2026-07-07 RPA5671 LGA → CMH Jul 7, 21:55 UTCJul 7, 23:10 UTC1h 15m
2026-07-07 RPA5637 - Jul 7, 18:25 UTCJul 7, 20:00 UTC1h 35m
2026-07-07 RPA5637 SDF → LGA Jul 7, 18:22 UTCJul 7, 20:05 UTC1h 43m
2026-07-07 RPA5637 LGA → SDF Jul 7, 15:25 UTCJul 7, 17:00 UTC1h 35m
2026-07-07 RPA5847 - Jul 7, 12:20 UTCJul 7, 14:05 UTC1h 45m
2026-07-06 RPA5853 - Jul 6, 23:15 UTCJul 7, 01:20 UTC2h 5m
2026-07-06 RPA5730 BOS → LGA Jul 6, 20:35 UTCJul 6, 21:25 UTC50m

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 N220JQ page for operator, model, and routing details .

Mode-S A1E1D8 frequently asked

What is Mode-S code A1E1D8?
A1E1D8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N220JQ.
Where is Mode-S A1E1D8 registered?
Mode-S code A1E1D8 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 A1E1D8 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 A1E1D8, octal 50360730, decimal 10,609,112.
What flights does A1E1D8 operate?
Mode-S A1E1D8 has broadcast 20 distinct callsigns, including RPA5641, RPA5804, RPA5693, RPA5861, RPA5678.