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sensors Mode-S transponder

A7F286

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N611AS · BOEING 737-700 · operated by ALASKA AIRLINES INC

Hex
A7F286
Octal
51771206
Decimal
11,006,598
Country
US
Tail
N611AS
Type
B737
No current signal · last broadcast 11h ago
Flights observed
447
Distinct callsigns
20
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A7F286.

Country allocation

The ICAO 24-bit address A7F286 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
ASA65 - 34 2026-07-10
ASA67 Alaska Airlines 33 2026-06-04
ASA61 - 31 2026-07-13
ASA66 Alaska Airlines 30 2026-06-09
ASA64 Alaska Airlines 21 2026-06-05
ASA70 - 14 2026-07-07
ASA73 - 12 2026-07-07
ASA222 Alaska Airlines 9 2026-06-03
ASA62 Alaska Airlines 8 2026-05-06
ASA310 Alaska Airlines 8 2026-05-14
ASA374 Alaska Airlines 7 2026-05-23
ASA9669 - 6 2026-07-13
ASA601 Alaska Airlines 6 2026-05-07
ASA60 - 6 2026-07-11
ASA55 Alaska Airlines 6 2026-06-04
ASA54 Alaska Airlines 6 2026-06-10
ASA219 Alaska Airlines 6 2026-05-31
ASA9671 - 5 2026-07-14
ASA706 Alaska Airlines 5 2026-04-20
ASA705 Alaska Airlines 5 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA9671 - Jul 14, 01:40 UTCJul 14, 02:55 UTC1h 15m
2026-07-13 ASA9669 - Jul 13, 23:05 UTCJul 14, 00:25 UTC1h 20m
2026-07-13 ASA61 CDV → ANC Jul 13, 21:10 UTCJul 13, 21:55 UTC45m
2026-07-13 ASA61 YAK → CDV Jul 13, 19:15 UTCJul 13, 19:55 UTC40m
2026-07-13 61 - Jul 13, 17:40 UTCJul 13, 18:25 UTC45m
2026-07-13 ASA61 - Jul 13, 14:25 UTCJul 13, 16:20 UTC1h 55m
2026-07-13 445 - Jul 13, 04:55 UTCJul 13, 06:55 UTC2h 0m
2026-07-13 ASA764 - Jul 13, 00:40 UTCJul 13, 00:50 UTC10m
2026-07-12 ASA435 - Jul 12, 21:20 UTCJul 12, 23:25 UTC2h 5m
2026-07-12 ASA796 SLC → SEA Jul 12, 17:30 UTCJul 12, 19:05 UTC1h 35m
2026-07-12 ASA292 SEA → SLC Jul 12, 14:40 UTCJul 12, 16:10 UTC1h 30m
2026-07-12 ASA766 - Jul 12, 04:50 UTCJul 12, 06:45 UTC1h 55m
2026-07-12 ASA766 - Jul 12, 02:20 UTCJul 12, 02:35 UTC15m
2026-07-11 ASA60 - Jul 11, 21:05 UTCJul 11, 23:00 UTC1h 55m
2026-07-11 ASA60 - Jul 11, 17:25 UTCJul 11, 18:50 UTC1h 25m
2026-07-11 60 - Jul 11, 15:35 UTCJul 11, 16:05 UTC30m
2026-07-11 ASA71 - Jul 11, 06:15 UTCJul 11, 08:05 UTC1h 50m
2026-07-11 ASA272 ANC → SEA Jul 11, 00:25 UTCJul 11, 03:30 UTC3h 5m
2026-07-10 ASA65 - Jul 10, 21:25 UTCJul 10, 22:50 UTC1h 25m
2026-07-10 ASA65 - Jul 10, 19:30 UTCJul 10, 19:50 UTC20m
2026-07-10 ASA65 - Jul 10, 17:30 UTCJul 10, 17:45 UTC15m
2026-07-10 ASA65 - Jul 10, 14:50 UTCJul 10, 16:05 UTC1h 15m
2026-07-10 ASA276 ANC → SEA Jul 10, 08:16 UTCJul 10, 10:52 UTC2h 36m
2026-07-10 ASA276 ANC → SEA Jul 10, 08:00 UTCJul 10, 11:10 UTC3h 10m
2026-07-10 ASA352 AKN → ANC Jul 10, 01:50 UTCJul 10, 02:35 UTC45m
2026-07-09 ASA351 LAX → SEA Jul 9, 23:50 UTCJul 10, 00:35 UTC45m
2026-07-09 ASA65 - Jul 9, 21:10 UTCJul 9, 22:25 UTC1h 15m
2026-07-09 ASA65 JNU → ANC Jul 9, 21:04 UTCJul 9, 22:27 UTC1h 23m
2026-07-09 ASA65 - Jul 9, 19:30 UTCJul 9, 19:55 UTC25m
2026-07-09 ASA65 - Jul 9, 17:20 UTCJul 9, 17:35 UTC15m
2026-07-09 65 - Jul 9, 14:15 UTCJul 9, 15:40 UTC1h 25m
2026-07-09 ASA435 - Jul 9, 05:00 UTCJul 9, 06:45 UTC1h 45m
2026-07-09 ASA435 - Jul 9, 00:20 UTCJul 9, 00:35 UTC15m
2026-07-08 ASA435 - Jul 8, 20:55 UTCJul 8, 23:05 UTC2h 10m
2026-07-08 ASA60 - Jul 8, 17:35 UTCJul 8, 18:50 UTC1h 15m
2026-07-08 ASA60 - Jul 8, 15:30 UTCJul 8, 16:05 UTC35m
2026-07-08 ASA69 - Jul 8, 04:15 UTCJul 8, 04:50 UTC35m
2026-07-08 ASA69 - Jul 8, 01:50 UTCJul 8, 03:15 UTC1h 25m
2026-07-07 ASA1839 - Jul 7, 20:10 UTCJul 7, 23:30 UTC3h 20m
2026-07-07 ASA466 PDX → DFW Jul 7, 18:20 UTCJul 7, 19:05 UTC45m
2026-07-07 ASA73 - Jul 7, 15:40 UTCJul 7, 17:00 UTC1h 20m
2026-07-07 ASA73 - Jul 7, 13:55 UTCJul 7, 14:15 UTC20m
2026-07-07 ASA70 - Jul 7, 06:15 UTCJul 7, 06:30 UTC15m
2026-07-07 ASA70 - Jul 7, 03:50 UTCJul 7, 05:10 UTC1h 20m
2026-07-07 ASA9671 - Jul 7, 01:15 UTCJul 7, 02:40 UTC1h 25m
2026-07-06 ASA9669 - Jul 6, 23:05 UTCJul 7, 00:20 UTC1h 15m
2026-07-06 ASA61 CDV → ANC Jul 6, 20:55 UTCJul 6, 21:35 UTC40m
2026-07-06 ASA61 - Jul 6, 19:25 UTCJul 6, 19:55 UTC30m
2026-07-06 AS61 - Jul 6, 17:40 UTCJul 6, 17:55 UTC15m
2026-07-06 ASA61 - Jul 6, 14:20 UTCJul 6, 16:15 UTC1h 55m

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 N611AS page for operator, model, and routing details .

Mode-S A7F286 frequently asked

What is Mode-S code A7F286?
A7F286 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N611AS.
Where is Mode-S A7F286 registered?
Mode-S code A7F286 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 A7F286 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7F286, octal 51771206, decimal 11,006,598.
What flights does A7F286 operate?
Mode-S A7F286 has broadcast 20 distinct callsigns, including ASA65, ASA67, ASA61, ASA66, ASA64.