sensors Mode-S transponder

861BEC

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA609A · BOEING 767-300

Hex
861BEC
Octal
41415754
Decimal
8,788,972
Country
JP
Tail
JA609A
Type
B763
Broadcasting now · callsign ANA250 · 7,650 ft
Flights observed
220
Distinct callsigns
20
Country
JP
Last broadcast
2h ago

Current position

861BEC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 861BEC falls within the block assigned to Japan (JP) by ICAO Annex 10, Volume III. Every aircraft registered in Japan 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ANA245 HND → FUK May 30, 00:10 UTCMay 30, 01:20 UTC1h 10m
2026-05-29 ANA38 ITM → HND May 29, 10:30 UTCMay 29, 11:10 UTC40m
2026-05-29 ANA778 CTS → ITM May 29, 07:45 UTCMay 29, 09:30 UTC1h 45m
2026-05-29 ANA707 NGO → CTS May 29, 05:05 UTCMay 29, 06:20 UTC1h 15m
2026-05-29 ANA708 CTS → NGO May 29, 02:30 UTCMay 29, 03:50 UTC1h 20m
2026-05-29 ANA703 NGO → CTS May 29, 00:00 UTCMay 29, 01:20 UTC1h 20m
2026-05-28 ANA714 CTS → NGO May 28, 09:50 UTCMay 28, 11:10 UTC1h 20m
2026-05-28 ANA777 ITM → CTS May 28, 07:20 UTCMay 28, 08:45 UTC1h 25m
2026-05-28 ANA27 HND → ITM May 28, 05:25 UTCMay 28, 06:10 UTC45m
2026-05-28 ANA24 ITM → HND May 28, 03:15 UTCMay 28, 04:00 UTC45m
2026-05-27 ANA772 CTS → ITM May 27, 23:50 UTCMay 28, 01:25 UTC1h 35m
2026-05-27 ANA987 HND → CTS May 27, 21:35 UTCMay 27, 22:55 UTC1h 20m
2026-05-27 ANA598 MYJ → HND May 27, 11:00 UTCMay 27, 12:10 UTC1h 10m
2026-05-27 ANA595 HND → MYJ May 27, 08:55 UTCMay 27, 09:50 UTC55m
2026-05-27 ANA1088 YGJ → HND May 27, 05:09 UTCMay 27, 06:04 UTC55m
2026-05-27 ANA1087 HND → YGJ May 27, 03:09 UTCMay 27, 03:54 UTC45m
2026-05-27 ANA654 OKJ → HND May 27, 01:05 UTCMay 27, 01:54 UTC50m
2026-05-26 ANA1084 TPE → NRT May 26, 09:09 UTCMay 26, 10:25 UTC1h 15m
2026-05-26 ANA1083 NRT → TPE May 26, 06:34 UTCMay 26, 07:49 UTC1h 15m
2026-05-26 ANA621 HND → KOJ May 26, 00:49 UTCMay 26, 04:45 UTC3h 55m
2026-05-25 ANA382 YGJ → HND May 25, 22:40 UTCMay 25, 23:40 UTC1h 0m
2026-05-25 ANA389 HND → YGJ May 25, 12:15 UTCMay 25, 13:00 UTC45m
2026-05-25 ANA38 ITM → HND May 25, 10:25 UTCMay 25, 11:10 UTC45m
2026-05-25 ANA778 CTS → ITM May 25, 07:35 UTCMay 25, 09:00 UTC1h 25m
2026-05-25 ANA707 NGO → CTS May 25, 05:00 UTCMay 25, 06:30 UTC1h 30m
2026-05-25 ANA708 CTS → NGO May 25, 02:35 UTCMay 25, 03:45 UTC1h 10m
2026-05-24 ANA714 CTS → NGO May 24, 09:40 UTCMay 24, 11:00 UTC1h 20m
2026-05-24 ANA777 ITM → CTS May 24, 07:15 UTCMay 24, 08:45 UTC1h 30m
2026-05-24 ANA27 HND → ITM May 24, 05:30 UTCMay 24, 06:10 UTC40m
2026-05-23 ANA993 HND → OKA May 23, 22:10 UTCMay 24, 03:45 UTC5h 35m
2026-05-22 ANA1084 TPE → NRT May 22, 09:10 UTCMay 22, 10:25 UTC1h 15m
2026-05-22 ANA1083 NRT → TPE May 22, 06:20 UTCMay 22, 07:35 UTC1h 15m
2026-05-22 ANA624 KOJ → HND May 22, 03:35 UTCMay 22, 04:45 UTC1h 10m
2026-05-22 ANA621 HND → KOJ May 22, 00:50 UTCMay 22, 01:55 UTC1h 5m
2026-05-21 ANA382 YGJ → HND May 21, 22:40 UTCMay 21, 23:30 UTC50m
2026-05-21 ANA389 HND → YGJ May 21, 11:30 UTCMay 21, 12:20 UTC50m
2026-05-21 ANA682 HIJ → HND May 21, 08:25 UTCMay 21, 09:30 UTC1h 5m
2026-05-21 ANA681 HND → HIJ May 21, 06:20 UTCMay 21, 07:25 UTC1h 5m
2026-05-21 ANA250 FUK → HND May 21, 03:00 UTCMay 21, 04:05 UTC1h 5m
2026-05-21 ANA245 HND → FUK May 21, 00:15 UTCMay 21, 01:20 UTC1h 5m
2026-05-20 ANA1084 TPE → NRT May 20, 09:05 UTCMay 20, 10:30 UTC1h 25m
2026-05-20 ANA1083 NRT → TPE May 20, 06:25 UTCMay 20, 07:45 UTC1h 20m
2026-05-20 ANA624 KOJ → HND May 20, 00:50 UTCMay 20, 04:55 UTC4h 6m
2026-05-19 ANA382 YGJ → HND May 19, 22:35 UTCMay 19, 23:40 UTC1h 5m
2026-05-19 ANA389 HND → YGJ May 19, 11:10 UTCMay 19, 12:00 UTC50m
2026-05-19 ANA682 HIJ → HND May 19, 08:30 UTCMay 19, 09:35 UTC1h 5m
2026-05-19 ANA681 HND → HIJ May 19, 06:30 UTCMay 19, 07:30 UTC1h 0m
2026-05-18 ANA1079 HND → MMY May 18, 23:10 UTCMay 19, 05:25 UTC6h 15m
2026-05-18 ANA670 NGS → HND May 18, 10:45 UTCMay 18, 12:15 UTC1h 30m
2026-05-18 ANA667 HND → NGS May 18, 08:10 UTCMay 18, 09:25 UTC1h 15m

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 JA609A page for operator, model, and routing details .

Mode-S 861BEC frequently asked

What is Mode-S code 861BEC?
861BEC is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA609A.
Where is Mode-S 861BEC registered?
Mode-S code 861BEC is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861BEC broadcasting right now?
Yes. Mode-S 861BEC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861BEC, octal 41415754, decimal 8,788,972.
What flights does 861BEC operate?
Mode-S 861BEC has broadcast 20 distinct callsigns, including ANA382, ANA624, ANA621, ANA389, ANA1084.