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sensors Mode-S transponder

A80C87

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N618AS · BOEING 737-700 · operated by ALASKA AIRLINES INC

Hex
A80C87
Octal
52006207
Decimal
11,013,255
Country
US
Tail
N618AS
Type
B737
Transponder active on ground
Flights observed
556
Distinct callsigns
20
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A80C87.

Country allocation

The ICAO 24-bit address A80C87 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 - 44 2026-07-10
ASA61 - 36 2026-07-04
ASA64 Alaska Airlines 31 2026-06-10
ASA65 - 30 2026-07-11
ASA70 - 25 2026-07-02
ASA67 Alaska Airlines 21 2026-06-01
ASA73 - 18 2026-07-02
ASA310 Alaska Airlines 13 2026-05-26
ASA55 - 12 2026-07-06
ASA9669 - 9 2026-06-29
ASA1528 Alaska Airlines 9 2026-07-01
ASA62 Alaska Airlines 8 2026-05-23
ASA1527 Alaska Airlines 8 2026-07-01
ASA229 Alaska Airlines 7 2026-06-05
ASA466 - 6 2026-07-12
ASA454 Alaska Airlines 6 2026-06-04
ASA288 Alaska Airlines 6 2026-06-05
ASA1403 Alaska Airlines 6 2026-06-04
ASA1339 - 6 2026-06-30
ASA9671 - 5 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ASA1552 - Jul 13, 18:05 UTCJul 13, 19:05 UTC1h 0m
2026-07-13 ASA1552 SEA → SEA Jul 13, 18:03 UTCJul 13, 18:52 UTC49m
2026-07-13 ASA364 GEG → SEA Jul 13, 15:45 UTCJul 13, 16:25 UTC40m
2026-07-13 ASA364 GEG → SEA Jul 13, 15:40 UTCJul 13, 16:15 UTC35m
2026-07-13 ASA350 - Jul 13, 06:20 UTCJul 13, 07:01 UTC40m
2026-07-12 ASA1839 FAI → SEA Jul 12, 20:10 UTCJul 12, 23:30 UTC3h 20m
2026-07-12 ASA1839 FAI → SEA Jul 12, 20:08 UTCJul 12, 23:12 UTC3h 4m
2026-07-12 ASA466 ANC → FAI Jul 12, 18:20 UTCJul 12, 19:01 UTC40m
2026-07-12 ASA1544 - Jul 12, 02:30 UTCJul 12, 03:45 UTC1h 15m
2026-07-12 ASA1544 - Jul 12, 00:10 UTCJul 12, 01:05 UTC55m
2026-07-11 AS65 - Jul 11, 21:35 UTCJul 11, 22:50 UTC1h 15m
2026-07-11 ASA65 - Jul 11, 19:30 UTCJul 11, 19:55 UTC25m
2026-07-11 ASA65 - Jul 11, 16:55 UTCJul 11, 17:05 UTC10m
2026-07-11 ASA65 - Jul 11, 14:10 UTCJul 11, 15:20 UTC1h 10m
2026-07-11 ASA221 ANC → SEA Jul 11, 08:35 UTCJul 11, 11:35 UTC3h 0m
2026-07-11 ASA1415 - Jul 11, 00:25 UTCJul 11, 01:10 UTC45m
2026-07-10 ASA1552 SEA → FAI Jul 10, 20:10 UTCJul 10, 23:25 UTC3h 15m
2026-07-10 ASA364 GEG → SEA Jul 10, 14:35 UTCJul 10, 15:20 UTC45m
2026-07-10 ASA350 SEA → GEG Jul 10, 06:30 UTCJul 10, 07:10 UTC40m
2026-07-10 ASA66 - Jul 10, 02:45 UTCJul 10, 04:55 UTC2h 10m
2026-07-10 ASA66 - Jul 10, 01:05 UTCJul 10, 01:15 UTC10m
2026-07-09 ASA66 - Jul 9, 23:10 UTCJul 9, 23:40 UTC30m
2026-07-09 ASA66 ANC → CDV Jul 9, 21:50 UTCJul 9, 22:25 UTC35m
2026-07-09 ASA357 SEA → ANC Jul 9, 16:50 UTCJul 9, 20:05 UTC3h 15m
2026-07-09 ASA364 GEG → SEA Jul 9, 14:40 UTCJul 9, 15:25 UTC45m
2026-07-09 ASA350 SEA → GEG Jul 9, 06:22 UTCJul 9, 06:41 UTC19m
2026-07-09 ASA350 SEA → GEG Jul 9, 06:10 UTCJul 9, 06:50 UTC40m
2026-07-09 ASA66 - Jul 9, 02:40 UTCJul 9, 04:30 UTC1h 50m
2026-07-09 ASA66 - Jul 9, 00:55 UTCJul 9, 01:15 UTC20m
2026-07-08 ASA66 - Jul 8, 23:00 UTCJul 8, 23:35 UTC35m
2026-07-08 ASA66 - Jul 8, 21:35 UTCJul 8, 22:05 UTC30m
2026-07-08 ASA357 SEA → ANC Jul 8, 16:40 UTCJul 8, 20:05 UTC3h 25m
2026-07-08 ASA66 JNU → SEA Jul 8, 02:40 UTCJul 8, 04:45 UTC2h 5m
2026-07-08 ASA66 JNU → SEA Jul 8, 02:37 UTCJul 8, 04:28 UTC1h 51m
2026-07-08 ASA66 JNU → SEA Jul 8, 01:10 UTCJul 8, 01:35 UTC25m
2026-07-07 ASA66 JNU → SEA Jul 7, 23:05 UTCJul 7, 23:40 UTC35m
2026-07-07 ASA66 JNU → SEA Jul 7, 21:25 UTCJul 7, 22:00 UTC35m
2026-07-07 ASA357 SEA → ANC Jul 7, 16:50 UTCJul 7, 19:50 UTC3h 0m
2026-07-07 AS1554 - Jul 7, 13:10 UTCJul 7, 15:10 UTC2h 0m
2026-07-07 ASA69 - Jul 7, 04:25 UTCJul 7, 04:55 UTC30m
2026-07-07 ASA69 - Jul 7, 04:40 UTCJul 7, 04:59 UTC19m
2026-07-07 ASA69 - Jul 7, 02:05 UTCJul 7, 03:30 UTC1h 25m
2026-07-06 ASA1839 - Jul 6, 20:25 UTCJul 6, 23:50 UTC3h 25m
2026-07-06 ASA466 PDX → DFW Jul 6, 18:35 UTCJul 6, 19:15 UTC40m
2026-07-06 ASA466 PDX → DFW Jul 6, 18:31 UTCJul 6, 19:14 UTC43m
2026-07-06 ASA55 - Jul 6, 13:45 UTCJul 6, 17:30 UTC3h 45m
2026-07-06 ASA755 - Jul 6, 04:05 UTCJul 6, 04:55 UTC50m
2026-07-06 ASA754 - Jul 6, 02:00 UTCJul 6, 02:50 UTC50m
2026-07-06 ASA754 ANC → DLG Jul 6, 01:59 UTCJul 6, 02:52 UTC53m
2026-07-05 ASA486 AKN → ANC Jul 5, 21:50 UTCJul 5, 22:45 UTC55m

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 N618AS page for operator, model, and routing details .

Mode-S A80C87 frequently asked

What is Mode-S code A80C87?
A80C87 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N618AS.
Where is Mode-S A80C87 registered?
Mode-S code A80C87 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 A80C87 broadcasting right now?
Mode-S A80C87 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A80C87, octal 52006207, decimal 11,013,255.
What flights does A80C87 operate?
Mode-S A80C87 has broadcast 20 distinct callsigns, including ASA66, ASA61, ASA64, ASA65, ASA70.