Apparatus

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sensors Mode-S transponder

A8304F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N627AS · BOEING 737-700 · operated by ALASKA AIRLINES INC

Hex
A8304F
Octal
52030117
Decimal
11,022,415
Country
US
Tail
N627AS
Type
B737
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
383
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S A8304F.

Country allocation

The ICAO 24-bit address A8304F 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
ASA7004 Alaska Airlines 46 2026-07-26
ASA7005 Alaska Airlines 44 2026-07-25
ASA7006 Alaska Airlines 38 2026-07-24
ASA7010 Alaska Airlines 36 2026-07-24
ASA7096 Alaska Airlines 30 2026-07-24
ASA7011 Alaska Airlines 28 2026-07-26
ASA7015 - 24 2026-07-16
ASA7019 - 20 2026-07-16
ASA7097 Alaska Airlines 18 2026-07-26
ASA7025 - 17 2026-07-14
ASA7026 - 14 2026-07-15
ASA9621 - 7 2026-07-12
ASA7009 - 7 2026-07-12
ASA7001 Alaska Airlines 6 2026-06-29
ASA9562 Alaska Airlines 4 2026-06-07
ASA7098 Alaska Airlines 4 2026-06-23
ASA7039 Alaska Airlines 4 2026-06-20
ASA9623 - 3 2026-07-12
ASA9560 Alaska Airlines 3 2026-06-09
ASA7008 Alaska Airlines 3 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA7011 ANC → OME Jul 26, 19:40 UTCJul 26, 20:50 UTC1h 10m
2026-07-26 ASA7011 ANC → OME Jul 26, 17:20 UTCJul 26, 18:10 UTC50m
2026-07-26 ASA7097 SEA → ANC Jul 26, 06:55 UTCJul 26, 09:50 UTC2h 55m
2026-07-26 ASA7400 JNU → SEA Jul 26, 03:05 UTCJul 26, 05:05 UTC2h 0m
2026-07-26 ASA7004 SEA → KTN Jul 26, 01:20 UTCJul 26, 01:40 UTC20m
2026-07-26 ASA7004 SEA → KTN Jul 26, 00:05 UTCJul 26, 00:25 UTC20m
2026-07-25 ASA7004 SEA → KTN Jul 25, 21:50 UTCJul 25, 23:10 UTC1h 20m
2026-07-25 ASA7005 JNU → SEA Jul 25, 15:20 UTCJul 25, 17:25 UTC2h 5m
2026-07-25 ASA7005 JNU → SEA Jul 25, 15:17 UTCJul 25, 17:19 UTC2h 2m
2026-07-25 ASA7005 JNU → SEA Jul 25, 12:55 UTCJul 25, 14:05 UTC1h 10m
2026-07-25 AS7010 ANC → BET Jul 25, 01:15 UTCJul 25, 02:00 UTC45m
2026-07-24 ASA7010 ANC → BET Jul 24, 23:20 UTCJul 25, 00:05 UTC45m
2026-07-24 ASA7006 SEA → JNU Jul 24, 19:55 UTCJul 24, 21:25 UTC1h 30m
2026-07-24 ASA7006 SEA → JNU Jul 24, 16:30 UTCJul 24, 18:30 UTC2h 0m
2026-07-24 ASA7096 JNU → SEA Jul 24, 08:00 UTCJul 24, 09:45 UTC1h 45m
2026-07-24 ASA7096 JNU → SEA Jul 24, 07:59 UTCJul 24, 09:43 UTC1h 44m
2026-07-24 ASA7096 JNU → SEA Jul 24, 05:40 UTCJul 24, 06:45 UTC1h 5m
2026-07-22 AS7006 SEA → JNU Jul 22, 20:20 UTCJul 22, 21:45 UTC1h 25m
2026-07-22 ASA7006 SEA → JNU Jul 22, 17:15 UTCJul 22, 19:10 UTC1h 55m
2026-07-18 ASA7004 SEA → KTN Jul 18, 05:45 UTCJul 18, 07:45 UTC2h 0m
2026-07-18 ASA7004 SEA → KTN Jul 18, 04:30 UTCJul 18, 04:45 UTC15m
2026-07-18 ASA7004 SEA → KTN Jul 18, 02:19 UTCJul 18, 02:40 UTC20m
2026-07-17 ASA7004 SEA → KTN Jul 17, 23:25 UTCJul 18, 00:39 UTC1h 15m
2026-07-17 ASA7005 - Jul 17, 18:50 UTCJul 17, 20:20 UTC1h 30m
2026-07-17 ASA7005 - Jul 17, 17:15 UTCJul 17, 17:40 UTC25m
2026-07-17 ASA7005 - Jul 17, 15:10 UTCJul 17, 15:25 UTC15m
2026-07-17 ASA7005 - Jul 17, 12:45 UTCJul 17, 13:55 UTC1h 10m
2026-07-16 ASA7019 - Jul 16, 23:55 UTCJul 17, 00:35 UTC40m
2026-07-16 7019 - Jul 16, 22:35 UTCJul 16, 22:49 UTC15m
2026-07-16 ASA7019 - Jul 16, 20:49 UTCJul 16, 21:45 UTC55m
2026-07-16 ASA7015 - Jul 16, 14:50 UTCJul 16, 18:50 UTC4h 0m
2026-07-16 ASA7097 SEA → ANC Jul 16, 09:25 UTCJul 16, 12:34 UTC3h 10m
2026-07-16 ASA7097 SEA → ANC Jul 16, 09:25 UTCJul 16, 12:31 UTC3h 6m
2026-07-16 ASA7004 - Jul 16, 03:25 UTCJul 16, 05:25 UTC2h 0m
2026-07-16 ASA7004 - Jul 16, 02:05 UTCJul 16, 02:20 UTC15m
2026-07-16 ASA7004 - Jul 16, 00:40 UTCJul 16, 01:00 UTC20m
2026-07-15 ASA7004 - Jul 15, 22:00 UTCJul 15, 23:15 UTC1h 15m
2026-07-15 ASA7005 - Jul 15, 18:20 UTCJul 15, 19:55 UTC1h 35m
2026-07-15 ASA7005 - Jul 15, 16:45 UTCJul 15, 17:05 UTC20m
2026-07-15 ASA7005 - Jul 15, 15:00 UTCJul 15, 15:20 UTC20m
2026-07-15 ASA7005 - Jul 15, 13:00 UTCJul 15, 14:10 UTC1h 10m
2026-07-15 ASA7026 OTZ → ANC Jul 15, 01:00 UTCJul 15, 02:10 UTC1h 10m
2026-07-14 ASA7025 - Jul 14, 22:50 UTCJul 15, 00:00 UTC1h 10m
2026-07-14 ASA7006 - Jul 14, 20:10 UTCJul 14, 21:35 UTC1h 25m
2026-07-14 ASA7006 - Jul 14, 16:40 UTCJul 14, 18:35 UTC1h 55m
2026-07-14 ASA7096 - Jul 14, 07:20 UTCJul 14, 09:15 UTC1h 55m
2026-07-14 ASA7096 JNU → SEA Jul 14, 05:22 UTCJul 14, 06:34 UTC1h 12m
2026-07-14 ASA7096 - Jul 14, 05:20 UTCJul 14, 06:25 UTC1h 5m
2026-07-13 ASA7026 OTZ → ANC Jul 13, 23:15 UTCJul 14, 00:30 UTC1h 15m
2026-07-13 ASA7026 OTZ → ANC Jul 13, 23:14 UTCJul 14, 00:30 UTC1h 16m

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 N627AS page for operator, model, and routing details .

Mode-S A8304F frequently asked

What is Mode-S code A8304F?
A8304F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N627AS.
Where is Mode-S A8304F registered?
Mode-S code A8304F 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 A8304F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8304F, octal 52030117, decimal 11,022,415.
What flights does A8304F operate?
Mode-S A8304F has broadcast 20 distinct callsigns, including ASA7004, ASA7005, ASA7006, ASA7010, ASA7096.