Apparatus

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sensors Mode-S transponder

770593

ICAO 24-bit transponder address · allocated to Sri Lanka

Currently assigned to 4R-ALS · AIRBUS A-330-200

Hex
770593
Octal
35602623
Decimal
7,800,211
Country
LK
Tail
4R-ALS
Type
A332
Broadcasting now · callsign ALK605 · 34,000 ft
Flights observed
93
Distinct callsigns
20
Country
LK
Last broadcast
1h ago

Current position

770593 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 770593 falls within the block assigned to Sri Lanka (LK) by ICAO Annex 10, Volume III. Every aircraft registered in Sri Lanka 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
ALK89L SriLankan Airlines 8 2026-06-03
ALK308 SriLankan Airlines 8 2026-06-11
ALK26L SriLankan Airlines 8 2026-05-30
ALK142 SriLankan Airlines 8 2026-06-11
ALK265 SriLankan Airlines 7 2026-05-31
ALK141 SriLankan Airlines 6 2026-06-11
ALK90L SriLankan Airlines 5 2026-06-09
ALK455 SriLankan Airlines 5 2026-06-13
ALK266 SriLankan Airlines 5 2026-06-01
ALK25L SriLankan Airlines 5 2026-06-06
ALK884 SriLankan Airlines 4 2026-05-11
ALK154 SriLankan Airlines 4 2026-06-11
ALK454 SriLankan Airlines 3 2026-06-12
ALK309 SriLankan Airlines 3 2026-06-05
ALK153 SriLankan Airlines 3 2026-06-10
ALK885 SriLankan Airlines 2 2026-05-11
ALK116 SriLankan Airlines 2 2026-05-19
ALK605 SriLankan Airlines 1 2026-06-14
ALK471 SriLankan Airlines 1 2026-06-08
ALK470 SriLankan Airlines 1 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-14 ALK605 MEL → CMB Jun 14, 06:35 UTCJun 14, 06:45 UTC10m
2026-06-13 ALK455 NRT → CMB Jun 13, 07:00 UTCJun 14, 04:30 UTC21h 30m
2026-06-13 ALK455 NRT → CMB Jun 13, 04:50 UTCJun 14, 04:30 UTC23h 40m
2026-06-13 ALK455 NRT → CMB Jun 13, 04:15 UTCJun 13, 10:20 UTC6h 5m
2026-06-12 ALK454 CMB → NRT Jun 12, 12:55 UTCJun 13, 02:15 UTC13h 20m
2026-06-11 ALK308 CMB → SIN Jun 11, 23:20 UTCJun 12, 10:45 UTC11h 26m
2026-06-11 ALK142 BOM → CMB Jun 11, 22:35 UTCJun 11, 22:45 UTC10m
2026-06-11 ALK141 CMB → BOM Jun 11, 21:05 UTCJun 11, 21:15 UTC10m
2026-06-11 ALK154 LHE → CMB Jun 11, 01:55 UTCJun 11, 20:30 UTC18h 35m
2026-06-10 ALK153 CMB → LHE Jun 10, 21:45 UTCJun 11, 00:10 UTC2h 25m
2026-06-09 ALK142 BOM → CMB Jun 9, 23:15 UTCJun 10, 21:50 UTC22h 35m
2026-06-09 ALK142 BOM → CMB Jun 9, 22:35 UTCJun 9, 22:45 UTC10m
2026-06-09 ALK141 CMB → BOM Jun 9, 20:20 UTCJun 9, 20:35 UTC15m
2026-06-09 ALK90L DAC → CMB Jun 9, 07:00 UTCJun 9, 19:45 UTC12h 45m
2026-06-08 ALK471 ICN → CMB Jun 8, 14:35 UTCJun 9, 05:15 UTC14h 40m
2026-06-07 ALK470 CMB → ICN Jun 7, 08:40 UTCJun 7, 21:55 UTC13h 15m
2026-06-06 ALK25L CMB → DXB Jun 6, 13:34 UTCJun 6, 23:05 UTC9h 30m
2026-06-05 ALK309 SIN → CMB Jun 5, 13:20 UTCJun 5, 14:10 UTC50m
2026-06-05 ALK308 CMB → SIN Jun 5, 02:45 UTCJun 5, 11:20 UTC8h 35m
2026-06-04 ALK405 BKK → CMB Jun 4, 07:25 UTCJun 5, 05:55 UTC22h 30m
2026-06-03 ALK404 CMB → BKK Jun 3, 11:00 UTCJun 4, 05:35 UTC18h 35m
2026-06-03 ALK90L DAC → CMB Jun 3, 08:55 UTCJun 4, 05:35 UTC20h 40m
2026-06-03 ALK89L CMB → TRZ Jun 3, 04:45 UTCJun 3, 06:55 UTC2h 10m
2026-06-02 ALK142 BOM → CMB Jun 2, 23:25 UTCJun 3, 00:15 UTC50m
2026-06-02 ALK142 BOM → CMB Jun 2, 22:35 UTCJun 2, 22:45 UTC10m
2026-06-02 ALK141 CMB → BOM Jun 2, 20:25 UTCJun 2, 20:45 UTC20m
2026-06-02 ALK90L DAC → CMB Jun 2, 07:10 UTCJun 2, 19:50 UTC12h 40m
2026-06-02 ALK89L CMB → TRZ Jun 2, 03:05 UTCJun 2, 05:20 UTC2h 15m
2026-06-01 ALK266 RUH → CMB Jun 1, 07:30 UTCJun 2, 00:25 UTC16h 55m
2026-06-01 ALK89L CMB → TRZ Jun 1, 03:20 UTCJun 1, 05:35 UTC2h 15m
2026-05-31 ALK265 CMB → RUH May 31, 13:40 UTCJun 1, 00:45 UTC11h 5m
2026-05-30 ALK26L DXB → CMB May 30, 22:20 UTCMay 30, 23:05 UTC45m
2026-05-30 ALK26L DXB → CMB May 30, 19:25 UTCMay 30, 19:30 UTC5m
2026-05-30 ALK25L CMB → DXB May 30, 13:50 UTCMay 30, 14:30 UTC40m
2026-05-28 ALK25L CMB → DXB May 28, 13:30 UTCMay 28, 14:15 UTC45m
2026-05-27 ALK309 SIN → CMB May 27, 12:40 UTCMay 28, 05:10 UTC16h 30m
2026-05-27 ALK308 CMB → SIN May 27, 09:40 UTCMay 27, 10:25 UTC45m
2026-05-26 ALK142 BOM → CMB May 26, 21:59 UTCMay 26, 23:39 UTC1h 40m
2026-05-26 ALK141 CMB → BOM May 26, 18:50 UTCMay 26, 20:29 UTC1h 40m
2026-05-25 ALK266 RUH → CMB May 25, 13:15 UTCMay 26, 00:19 UTC11h 5m
2026-05-24 ALK265 CMB → RUH May 24, 20:50 UTCMay 25, 20:34 UTC23h 45m
2026-05-24 ALK265 CMB → RUH May 24, 20:30 UTCMay 25, 17:15 UTC20h 45m
2026-05-24 ALK265 CMB → RUH May 24, 17:10 UTCMay 25, 13:55 UTC20h 45m
2026-05-24 ALK265 CMB → RUH May 24, 04:55 UTCMay 24, 20:50 UTC15h 55m
2026-05-23 ALK455 NRT → CMB May 23, 03:10 UTCMay 23, 09:15 UTC6h 5m
2026-05-22 ALK454 CMB → NRT May 22, 17:35 UTCMay 22, 23:30 UTC5h 55m
2026-05-21 ALK115 CMB → MLE May 21, 08:35 UTCMay 21, 11:40 UTC3h 5m
2026-05-19 ALK116 MLE → CMB May 19, 08:40 UTCMay 19, 11:30 UTC2h 50m
2026-05-18 ALK26L DXB → CMB May 18, 14:30 UTCMay 18, 23:40 UTC9h 9m
2026-05-18 ALK26L DXB → CMB May 18, 02:50 UTCMay 18, 23:40 UTC20h 49m

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 4R-ALS page for operator, model, and routing details .

Mode-S 770593 frequently asked

What is Mode-S code 770593?
770593 is an ICAO 24-bit transponder address. Allocated to Sri Lanka. Assigned to 4R-ALS.
Where is Mode-S 770593 registered?
Mode-S code 770593 is allocated to Sri Lanka (LK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 770593 broadcasting right now?
Yes. Mode-S 770593 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 770593, octal 35602623, decimal 7,800,211.
What flights does 770593 operate?
Mode-S 770593 has broadcast 20 distinct callsigns, including ALK89L, ALK308, ALK26L, ALK142, ALK265.