Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

48B646

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-NTG · DIAMOND DA-20

Hex
48B646
Octal
22133106
Decimal
4,765,254
Country
PL
Tail
SP-NTG
Type
DV20
No current signal · last broadcast 1d ago
Flights observed
98
Distinct callsigns
1
Country
PL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 48B646.

Country allocation

The ICAO 24-bit address 48B646 falls within the block assigned to Poland (PL) by ICAO Annex 10, Volume III. Every aircraft registered in Poland 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 1 distinct

Callsign Airline Flights Last seen
SPNTG - 98 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SPNTG - Jul 17, 05:20 UTCJul 17, 05:35 UTC15m
2026-07-16 SPNTG - Jul 16, 13:25 UTCJul 16, 13:34 UTC10m
2026-07-16 SPNTG - Jul 16, 07:25 UTCJul 16, 07:40 UTC15m
2026-07-15 SPNTG - Jul 15, 05:20 UTCJul 15, 05:35 UTC15m
2026-07-10 SPNTG - Jul 10, 05:30 UTCJul 10, 06:20 UTC50m
2026-07-09 SPNTG - Jul 9, 15:55 UTCJul 9, 16:05 UTC10m
2026-07-09 SPNTG - Jul 9, 13:25 UTCJul 9, 13:40 UTC15m
2026-07-09 SPNTG - Jul 9, 11:20 UTCJul 9, 11:35 UTC15m
2026-07-03 SPNTG - Jul 3, 07:10 UTCJul 3, 07:20 UTC10m
2026-07-03 SPNTG - Jul 3, 05:40 UTCJul 3, 06:25 UTC45m
2026-07-02 SPNTG - Jul 2, 11:25 UTCJul 2, 12:10 UTC45m
2026-06-25 SPNTG - Jun 25, 10:20 UTCJun 25, 10:35 UTC15m
2026-06-25 SPNTG - Jun 25, 07:54 UTCJun 25, 08:14 UTC20m
2026-06-24 SPNTG - Jun 24, 18:15 UTCJun 24, 18:29 UTC15m
2026-06-24 SPNTG - Jun 24, 16:34 UTCJun 24, 16:54 UTC20m
2026-06-23 SPNTG - Jun 23, 15:34 UTCJun 23, 15:55 UTC20m
2026-06-23 SPNTG - Jun 23, 06:59 UTCJun 23, 07:29 UTC30m
2026-06-23 SPNTG - Jun 23, 05:09 UTCJun 23, 06:19 UTC1h 10m
2026-06-22 SPNTG - Jun 22, 18:30 UTCJun 22, 18:49 UTC20m
2026-06-22 SPNTG - Jun 22, 16:34 UTCJun 22, 16:54 UTC20m
2026-06-18 SPNTG - Jun 18, 16:50 UTCJun 18, 17:21 UTC31m
2026-06-18 SPNTG - Jun 18, 13:25 UTCJun 18, 13:50 UTC25m
2026-06-18 SPNTG - Jun 18, 08:05 UTCJun 18, 08:15 UTC10m
2026-06-18 SPNTG - Jun 18, 05:45 UTCJun 18, 06:10 UTC25m
2026-06-17 SPNTG - Jun 17, 17:35 UTCJun 17, 17:55 UTC20m
2026-06-17 SPNTG - Jun 17, 13:40 UTCJun 17, 14:00 UTC20m
2026-06-17 SPNTG - Jun 17, 06:00 UTCJun 17, 08:05 UTC2h 5m
2026-06-16 SPNTG - Jun 16, 11:45 UTCJun 16, 12:14 UTC30m
2026-06-15 SPNTG - Jun 15, 10:09 UTCJun 15, 10:35 UTC25m
2026-06-10 SPNTG - Jun 10, 14:55 UTCJun 10, 15:05 UTC10m
2026-06-09 SPNTG - Jun 9, 14:10 UTCJun 9, 14:35 UTC25m
2026-06-08 SPNTG - Jun 8, 09:35 UTCJun 8, 10:15 UTC40m
2026-06-08 SPNTG - Jun 8, 05:35 UTCJun 8, 05:55 UTC20m
2026-06-03 SPNTG - Jun 3, 12:15 UTCJun 3, 12:35 UTC20m
2026-06-03 SPNTG - Jun 3, 11:10 UTCJun 3, 11:20 UTC10m
2026-06-03 SPNTG - Jun 3, 08:55 UTCJun 3, 09:15 UTC20m
2026-06-02 SPNTG - Jun 2, 09:05 UTCJun 2, 09:35 UTC30m
2026-06-01 SPNTG - Jun 1, 11:30 UTCJun 1, 11:40 UTC10m
2026-06-01 SPNTG - Jun 1, 09:25 UTCJun 1, 09:40 UTC15m
2026-05-29 SPNTG - May 29, 09:45 UTCMay 29, 10:10 UTC25m
2026-05-29 SPNTG - May 29, 08:05 UTCMay 29, 08:25 UTC20m
2026-05-29 SPNTG - May 29, 04:15 UTCMay 29, 04:40 UTC25m
2026-05-28 SPNTG - May 28, 06:45 UTCMay 28, 06:55 UTC10m
2026-05-28 SPNTG - May 28, 04:25 UTCMay 28, 04:45 UTC20m
2026-05-27 SPNTG - May 27, 12:50 UTCMay 27, 14:40 UTC1h 50m
2026-05-26 SPNTG - May 26, 04:24 UTCMay 26, 04:45 UTC20m
2026-05-25 SPNTG - May 25, 15:00 UTCMay 25, 15:25 UTC25m
2026-05-25 SPNTG - May 25, 12:35 UTCMay 25, 13:30 UTC55m
2026-05-25 SPNTG - May 25, 08:15 UTCMay 25, 08:35 UTC20m
2026-05-25 SPNTG - May 25, 04:35 UTCMay 25, 04:55 UTC20m

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 SP-NTG page for operator, model, and routing details .

Mode-S 48B646 frequently asked

What is Mode-S code 48B646?
48B646 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-NTG.
Where is Mode-S 48B646 registered?
Mode-S code 48B646 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48B646 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48B646, octal 22133106, decimal 4,765,254.
What flights does 48B646 operate?
Mode-S 48B646 has broadcast 1 distinct callsign, including SPNTG.