Apparatus

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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 Jul 26, 19:55 UTC
Flights observed
524
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:55 UTC

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
ASA66 Alaska Airlines 42 2026-07-26
ASA61 - 40 2026-07-20
ASA65 Alaska Airlines 37 2026-07-26
ASA67 Alaska Airlines 33 2026-06-04
ASA64 Alaska Airlines 21 2026-06-05
ASA70 Alaska Airlines 15 2026-07-22
ASA73 Alaska Airlines 13 2026-07-22
ASA222 Alaska Airlines 9 2026-06-03
ASA62 Alaska Airlines 8 2026-05-06
ASA60 Alaska Airlines 8 2026-07-19
ASA310 Alaska Airlines 8 2026-05-14
ASA9671 Alaska Airlines 7 2026-07-21
ASA54 - 7 2026-07-15
ASA374 Alaska Airlines 7 2026-05-23
ASA9669 - 6 2026-07-13
ASA69 Alaska Airlines 6 2026-07-19
ASA601 Alaska Airlines 6 2026-05-07
ASA55 Alaska Airlines 6 2026-06-04
ASA435 - 6 2026-07-19
ASA219 Alaska Airlines 6 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA65 SEA → KTN Jul 26, 19:30 UTCJul 26, 19:55 UTC25m
2026-07-26 ASA65 SEA → KTN Jul 26, 16:55 UTCJul 26, 17:15 UTC20m
2026-07-26 ASA65 SEA → KTN Jul 26, 14:15 UTCJul 26, 15:40 UTC1h 25m
2026-07-26 ASA66 JNU → SEA Jul 26, 02:35 UTCJul 26, 04:40 UTC2h 5m
2026-07-26 ASA66 JNU → SEA Jul 26, 00:45 UTCJul 26, 01:10 UTC25m
2026-07-25 ASA66 JNU → SEA Jul 25, 22:50 UTCJul 25, 23:25 UTC35m
2026-07-25 ASA66 JNU → SEA Jul 25, 21:20 UTCJul 25, 21:55 UTC35m
2026-07-25 ASA357 BOS → SFO Jul 25, 16:40 UTCJul 25, 19:45 UTC3h 5m
2026-07-25 ASA357 BOS → SFO Jul 25, 16:37 UTCJul 25, 19:40 UTC3h 3m
2026-07-25 ASA1554 JNU → SEA Jul 25, 13:10 UTCJul 25, 15:10 UTC2h 0m
2026-07-25 ASA71 SEA → JNU Jul 25, 04:40 UTCJul 25, 06:35 UTC1h 55m
2026-07-25 ASA272 PDX → SFO Jul 25, 00:05 UTCJul 25, 03:00 UTC2h 55m
2026-07-24 ASA1415 LIR → LAX Jul 24, 22:20 UTCJul 24, 23:00 UTC40m
2026-07-24 ASA1415 LIR → LAX Jul 24, 22:17 UTCJul 24, 23:09 UTC52m
2026-07-24 ASA1552 SEA → FAI Jul 24, 17:50 UTCJul 24, 21:05 UTC3h 15m
2026-07-24 ASA364 BOS → SEA Jul 24, 14:40 UTCJul 24, 15:25 UTC45m
2026-07-24 ASA350 LAX → IAD Jul 24, 06:15 UTCJul 24, 07:00 UTC45m
2026-07-24 ASA66 JNU → SEA Jul 24, 02:40 UTCJul 24, 04:35 UTC1h 55m
2026-07-24 ASA66 JNU → SEA Jul 24, 02:49 UTCJul 24, 04:31 UTC1h 42m
2026-07-24 ASA66 JNU → SEA Jul 24, 01:00 UTCJul 24, 01:30 UTC30m
2026-07-23 ASA66 JNU → SEA Jul 23, 22:50 UTCJul 23, 23:25 UTC35m
2026-07-23 ASA66 JNU → SEA Jul 23, 21:30 UTCJul 23, 22:00 UTC30m
2026-07-23 ASA357 BOS → SFO Jul 23, 16:55 UTCJul 23, 20:15 UTC3h 20m
2026-07-23 ASA1554 JNU → SEA Jul 23, 13:15 UTCJul 23, 15:05 UTC1h 50m
2026-07-23 ASA71 SEA → JNU Jul 23, 04:50 UTCJul 23, 06:50 UTC2h 0m
2026-07-23 ASA71 SEA → JNU Jul 23, 04:53 UTCJul 23, 06:49 UTC1h 56m
2026-07-23 ASA272 PDX → SFO Jul 23, 00:00 UTCJul 23, 03:00 UTC3h 0m
2026-07-22 73 - Jul 22, 15:40 UTCJul 22, 17:05 UTC1h 25m
2026-07-22 ASA73 JNU → ANC Jul 22, 14:15 UTCJul 22, 14:35 UTC20m
2026-07-22 ASA70 ANC → JNU Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-22 ASA52 ANC → LAS Jul 22, 01:15 UTCJul 22, 02:35 UTC1h 20m
2026-07-22 ASA52 ANC → LAS Jul 22, 00:54 UTCJul 22, 02:33 UTC1h 39m
2026-07-21 ASA51 ANC → BRW Jul 21, 22:25 UTCJul 22, 01:30 UTC3h 5m
2026-07-21 ASA51 ANC → BRW Jul 21, 22:24 UTCJul 21, 23:57 UTC1h 33m
2026-07-21 ASA1528 SEA → BUR Jul 21, 19:30 UTCJul 21, 20:45 UTC1h 15m
2026-07-21 ASA1527 ANC → OTZ Jul 21, 17:05 UTCJul 21, 18:20 UTC1h 15m
2026-07-21 ASA9671 ANC → RDB Jul 21, 01:45 UTCJul 21, 03:10 UTC1h 25m
2026-07-21 ASA9671 ANC → RDB Jul 21, 01:42 UTCJul 21, 02:59 UTC1h 17m
2026-07-20 ASA61 - Jul 20, 23:25 UTCJul 21, 00:35 UTC1h 9m
2026-07-20 ASA61 - Jul 20, 21:10 UTCJul 20, 21:55 UTC45m
2026-07-20 ASA61 YAK → CDV Jul 20, 19:25 UTCJul 20, 20:00 UTC35m
2026-07-20 ASA61 - Jul 20, 17:45 UTCJul 20, 18:15 UTC30m
2026-07-20 ASA61 - Jul 20, 14:25 UTCJul 20, 16:20 UTC1h 55m
2026-07-20 ASA445 - Jul 20, 05:00 UTCJul 20, 07:00 UTC2h 0m
2026-07-20 ASA445 JNU → SEA Jul 20, 04:56 UTCJul 20, 06:50 UTC1h 54m
2026-07-20 ASA766 SEA → SFO Jul 20, 02:45 UTCJul 20, 02:55 UTC10m
2026-07-20 ASA764 SMF → SEA Jul 20, 01:07 UTCJul 20, 01:36 UTC29m
2026-07-19 ASA435 - Jul 19, 22:00 UTCJul 19, 23:55 UTC1h 55m
2026-07-19 ASA60 KTN → SEA Jul 19, 18:50 UTCJul 19, 20:25 UTC1h 35m
2026-07-19 ASA60 KTN → SEA Jul 19, 16:55 UTCJul 19, 17:35 UTC40m

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 Jul 26, 19:55 UTC.
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 ASA66, ASA61, ASA65, ASA67, ASA64.