Apparatus

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sensors Mode-S transponder

4849EB

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-TWK · CESSNA 172 Skyhawk

Hex
4849EB
Octal
22044753
Decimal
4,737,515
Country
NL
Tail
PH-TWK
Type
C172
No current signal · last broadcast Jul 24, 11:05 UTC
Flights observed
117
Distinct callsigns
1
Country
NL
Last broadcast
Jul 24, 11:05 UTC

Last known position

Most recent position reported by Mode-S 4849EB.

Country allocation

The ICAO 24-bit address 4849EB falls within the block assigned to Netherlands (NL) by ICAO Annex 10, Volume III. Every aircraft registered in Netherlands 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
PHTWK - 117 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 PHTWK - Jul 24, 10:45 UTCJul 24, 11:05 UTC20m
2026-07-23 PHTWK - Jul 23, 15:55 UTCJul 23, 16:25 UTC30m
2026-07-20 PHTWK - Jul 20, 14:30 UTCJul 20, 14:45 UTC15m
2026-07-20 PHTWK - Jul 20, 13:30 UTCJul 20, 13:55 UTC25m
2026-07-20 PHTWK - Jul 20, 12:40 UTCJul 20, 12:50 UTC10m
2026-07-20 PHTWK - Jul 20, 06:45 UTCJul 20, 07:40 UTC55m
2026-07-19 PHTWK - Jul 19, 12:30 UTCJul 19, 13:25 UTC55m
2026-07-19 PHTWK - Jul 19, 09:15 UTCJul 19, 10:10 UTC55m
2026-07-15 PHTWK BMK → ENS Jul 15, 15:05 UTCJul 15, 16:10 UTC1h 5m
2026-07-15 PHTWK ENS → BMK Jul 15, 12:55 UTCJul 15, 13:55 UTC1h 0m
2026-07-14 PHTWK - Jul 14, 16:15 UTCJul 14, 17:40 UTC1h 25m
2026-07-14 PHTWK - Jul 14, 11:50 UTCJul 14, 12:50 UTC1h 0m
2026-07-13 PHTWK ENS → ENS Jul 13, 16:40 UTCJul 13, 17:40 UTC1h 0m
2026-07-12 PHTWK ENS → ENS Jul 12, 12:15 UTCJul 12, 13:05 UTC50m
2026-07-11 PHTWK - Jul 11, 15:10 UTCJul 11, 17:00 UTC1h 50m
2026-07-10 PHTWK - Jul 10, 15:20 UTCJul 10, 16:15 UTC55m
2026-07-10 PHTWK - Jul 10, 13:15 UTCJul 10, 14:15 UTC1h 0m
2026-07-10 PHTWK - Jul 10, 11:15 UTCJul 10, 12:20 UTC1h 5m
2026-07-10 PHTWK - Jul 10, 09:00 UTCJul 10, 10:05 UTC1h 5m
2026-07-09 PHTWK ENS → ENS Jul 9, 09:05 UTCJul 9, 10:35 UTC1h 30m
2026-07-08 PHTWK - Jul 8, 15:05 UTCJul 8, 16:05 UTC1h 0m
2026-07-08 PHTWK - Jul 8, 11:55 UTCJul 8, 13:00 UTC1h 5m
2026-06-28 PHTWK - Jun 28, 15:34 UTCJun 28, 16:35 UTC1h 0m
2026-06-28 PHTWK - Jun 28, 08:19 UTCJun 28, 09:20 UTC1h 0m
2026-06-26 PHTWK - Jun 26, 11:24 UTCJun 26, 12:05 UTC40m
2026-06-24 PHTWK - Jun 24, 14:39 UTCJun 24, 15:44 UTC1h 5m
2026-06-24 PHTWK - Jun 24, 11:14 UTCJun 24, 12:14 UTC1h 0m
2026-06-24 PHTWK - Jun 24, 08:49 UTCJun 24, 09:49 UTC1h 0m
2026-06-20 PHTWK - Jun 20, 13:24 UTCJun 20, 14:24 UTC1h 0m
2026-06-20 PHTWK - Jun 20, 09:44 UTCJun 20, 10:44 UTC1h 0m
2026-06-19 PHTWK - Jun 19, 17:04 UTCJun 19, 18:25 UTC1h 20m
2026-06-19 PHTWK - Jun 19, 13:20 UTCJun 19, 13:34 UTC15m
2026-06-19 PHTWK - Jun 19, 11:59 UTCJun 19, 12:44 UTC45m
2026-06-16 PHTWK - Jun 16, 16:35 UTCJun 16, 17:30 UTC55m
2026-06-15 PHTWK ENS → ENS Jun 15, 16:49 UTCJun 15, 16:59 UTC10m
2026-06-15 PHTWK - Jun 15, 15:25 UTCJun 15, 15:59 UTC35m
2026-06-13 PHTWK - Jun 13, 11:20 UTCJun 13, 11:35 UTC15m
2026-06-13 PHTWK - Jun 13, 07:10 UTCJun 13, 07:55 UTC45m
2026-06-08 PHTWK - Jun 8, 07:40 UTCJun 8, 09:30 UTC1h 50m
2026-06-07 PHTWK - Jun 7, 16:35 UTCJun 7, 17:25 UTC50m
2026-06-07 PHTWK - Jun 7, 11:45 UTCJun 7, 13:40 UTC1h 55m
2026-06-07 PHTWK - Jun 7, 08:35 UTCJun 7, 10:10 UTC1h 35m
2026-06-06 PHTWK - Jun 6, 11:25 UTCJun 6, 13:39 UTC2h 15m
2026-06-06 PHTWK - Jun 6, 07:45 UTCJun 6, 09:50 UTC2h 5m
2026-05-30 PHTWK - May 30, 12:25 UTCMay 30, 12:50 UTC25m
2026-05-30 PHTWK - May 30, 11:35 UTCMay 30, 11:55 UTC20m
2026-05-30 PHTWK - May 30, 09:50 UTCMay 30, 10:10 UTC20m
2026-05-30 PHTWK ENS → ENS May 30, 08:45 UTCMay 30, 09:15 UTC30m
2026-05-29 PHTWK LEY → ENS May 29, 12:50 UTCMay 29, 13:25 UTC35m
2026-05-29 PHTWK - May 29, 09:45 UTCMay 29, 10:10 UTC25m

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 PH-TWK page for operator, model, and routing details .

Mode-S 4849EB frequently asked

What is Mode-S code 4849EB?
4849EB is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-TWK.
Where is Mode-S 4849EB registered?
Mode-S code 4849EB is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4849EB broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 11:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4849EB, octal 22044753, decimal 4,737,515.
What flights does 4849EB operate?
Mode-S 4849EB has broadcast 1 distinct callsign, including PHTWK.