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sensors Mode-S transponder

AB1D06

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N815MD · EMBRAER ERJ-170-100 · operated by UMB BANK NA TRUSTEE

Hex
AB1D06
Octal
52616406
Decimal
11,214,086
Country
US
Tail
N815MD
Type
E170
Broadcasting now · callsign RPA5705 · 10,200 ft
Flights observed
531
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

AB1D06 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB1D06 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
RPA5742 - 22 2026-07-12
RPA5637 - 19 2026-07-05
RPA5642 Republic Airlines 16 2026-06-25
RPA5828 Republic Airlines 13 2026-05-27
RPA5705 - 13 2026-07-12
RPA5664 - 13 2026-07-06
RPA5822 - 12 2026-07-11
RPA5794 - 12 2026-07-13
RPA5841 - 11 2026-06-30
RPA5694 - 11 2026-07-13
RPA5651 Republic Airlines 11 2026-04-26
RPA5772 - 10 2026-07-08
RPA5770 - 10 2026-06-30
RPA5662 - 10 2026-07-08
RPA5638 Republic Airlines 10 2026-05-06
RPA5643 Republic Airlines 9 2026-06-03
RPA5825 - 8 2026-07-13
RPA5817 - 8 2026-07-09
RPA5691 - 8 2026-07-02
RPA5686 Republic Airlines 8 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 RPA5825 - Jul 13, 22:55 UTCJul 14, 00:50 UTC1h 55m
2026-07-13 RPA5825 - Jul 13, 19:40 UTCJul 13, 21:20 UTC1h 40m
2026-07-13 RPA5694 - Jul 13, 17:10 UTCJul 13, 18:05 UTC55m
2026-07-13 RPA5694 PIT → LGA Jul 13, 17:07 UTCJul 13, 18:01 UTC54m
2026-07-13 RPA5694 - Jul 13, 14:50 UTCJul 13, 15:45 UTC55m
2026-07-13 RPA5794 PIT → LGA Jul 13, 12:35 UTCJul 13, 13:35 UTC1h 0m
2026-07-12 RPA5792 LGA → PIT Jul 12, 23:09 UTCJul 13, 00:08 UTC59m
2026-07-12 RPA5792 LGA → PIT Jul 12, 23:10 UTCJul 13, 00:10 UTC1h 0m
2026-07-12 RPA5833 - Jul 12, 20:25 UTCJul 12, 22:00 UTC1h 35m
2026-07-12 RPA5833 LGA → LEX Jul 12, 18:01 UTCJul 12, 19:35 UTC1h 35m
2026-07-12 RPA5742 DCA → LGA Jul 12, 16:01 UTCJul 12, 16:55 UTC55m
2026-07-12 RPA5742 LGA → DCA Jul 12, 13:40 UTCJul 12, 14:25 UTC45m
2026-07-12 RPA5799 - Jul 12, 10:40 UTCJul 12, 11:25 UTC45m
2026-07-12 RPA5705 - Jul 12, 00:05 UTCJul 12, 00:45 UTC40m
2026-07-11 RPA5822 - Jul 11, 21:20 UTCJul 11, 22:10 UTC50m
2026-07-11 RPA5822 LGA → MVY Jul 11, 18:20 UTCJul 11, 18:55 UTC35m
2026-07-11 RPA5742 DCA → LGA Jul 11, 16:20 UTCJul 11, 17:05 UTC45m
2026-07-11 RPA5742 LGA → DCA Jul 11, 14:30 UTCJul 11, 15:20 UTC50m
2026-07-11 RPA5652 - Jul 11, 11:15 UTCJul 11, 13:00 UTC1h 45m
2026-07-11 RPA5636 - Jul 11, 00:50 UTCJul 11, 01:25 UTC35m
2026-07-10 RPA5636 LGA → SDF Jul 10, 23:35 UTCJul 11, 00:32 UTC57m
2026-07-10 RPA5636 - Jul 10, 23:35 UTCJul 11, 01:25 UTC1h 50m
2026-07-10 RPA5736 BOS → LGA Jul 10, 19:35 UTCJul 10, 20:30 UTC55m
2026-07-10 RPA5861 - Jul 10, 16:15 UTCJul 10, 17:45 UTC1h 30m
2026-07-10 RPA5621 - Jul 10, 13:05 UTCJul 10, 14:35 UTC1h 30m
2026-07-10 RPA5621 LGA → TVC Jul 10, 13:05 UTCJul 10, 14:43 UTC1h 38m
2026-07-10 RPA5590 - Jul 10, 01:55 UTCJul 10, 03:30 UTC1h 35m
2026-07-09 RPA5590 - Jul 9, 23:45 UTCJul 10, 00:00 UTC15m
2026-07-09 RPA5830 - Jul 9, 22:05 UTCJul 9, 22:50 UTC45m
2026-07-09 RPA5830 ATL → HHH Jul 9, 22:04 UTCJul 9, 22:51 UTC47m
2026-07-09 RPA5817 - Jul 9, 19:25 UTCJul 9, 20:10 UTC45m
2026-07-09 RPA5618 - Jul 9, 16:00 UTCJul 9, 18:05 UTC2h 5m
2026-07-09 RRPA5771 - Jul 9, 10:45 UTCJul 9, 12:20 UTC1h 35m
2026-07-08 RPA5635 LGA → IND Jul 8, 22:00 UTCJul 8, 23:40 UTC1h 40m
2026-07-08 RPA5822 - Jul 8, 19:55 UTCJul 8, 20:40 UTC45m
2026-07-08 RPA5822 LGA → MVY Jul 8, 18:00 UTCJul 8, 18:30 UTC30m
2026-07-08 RPA5662 - Jul 8, 16:05 UTCJul 8, 16:55 UTC50m
2026-07-08 RPA5662 LGA → MVY Jul 8, 14:35 UTCJul 8, 15:10 UTC35m
2026-07-08 RPA5772 DCA → LGA Jul 8, 12:45 UTCJul 8, 13:25 UTC40m
2026-07-08 RPA5772 DCA → LGA Jul 8, 12:42 UTCJul 8, 13:23 UTC41m
2026-07-08 RPA5734 - Jul 8, 10:15 UTCJul 8, 11:25 UTC1h 10m
2026-07-08 RPA5729 DCA → LEX Jul 8, 02:10 UTCJul 8, 03:15 UTC1h 5m
2026-07-08 RPA5667 BOS → DCA Jul 8, 00:10 UTCJul 8, 01:20 UTC1h 10m
2026-07-08 RPA5667 BOS → DCA Jul 8, 00:06 UTCJul 8, 01:17 UTC1h 11m
2026-07-07 RPA5829 - Jul 7, 22:05 UTCJul 7, 22:45 UTC40m
2026-07-07 RPA5829 BOS → EWR Jul 7, 17:15 UTCJul 7, 18:20 UTC1h 5m
2026-07-07 RPA5626 CMH → LGA Jul 7, 14:10 UTCJul 7, 15:45 UTC1h 35m
2026-07-07 RPA5626 CMH → LGA Jul 7, 10:45 UTCJul 7, 12:30 UTC1h 45m
2026-07-07 RPA5619 - Jul 7, 03:50 UTCJul 7, 05:50 UTC2h 0m
2026-07-07 RPA5619 MKE → BOS Jul 7, 03:48 UTCJul 7, 05:47 UTC1h 59m

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 N815MD page for operator, model, and routing details .

Mode-S AB1D06 frequently asked

What is Mode-S code AB1D06?
AB1D06 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N815MD.
Where is Mode-S AB1D06 registered?
Mode-S code AB1D06 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 AB1D06 broadcasting right now?
Yes. Mode-S AB1D06 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB1D06, octal 52616406, decimal 11,214,086.
What flights does AB1D06 operate?
Mode-S AB1D06 has broadcast 20 distinct callsigns, including RPA5742, RPA5637, RPA5642, RPA5828, RPA5705.