Apparatus

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sensors Mode-S transponder

A30F85

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N297AK · BOEING 737-900 · operated by ALASKA AIRLINES INC

Hex
A30F85
Octal
50607605
Decimal
10,686,341
Country
US
Tail
N297AK
Type
B739
Broadcasting now · callsign ASA581 · 37,000 ft
Flights observed
436
Distinct callsigns
20
Country
US
Last broadcast
Jul 24, 18:40 UTC

Current position

A30F85 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A30F85 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
ASA573 - 6 2026-07-07
ASA637 - 5 2026-06-27
ASA503 Alaska Airlines 5 2026-06-28
ASA42 - 5 2026-07-05
ASA310 - 5 2026-07-03
ASA212 Alaska Airlines 5 2026-06-04
ASA1434 Alaska Airlines 5 2026-06-17
ASA688 Alaska Airlines 4 2026-06-10
ASA684 - 4 2026-06-25
ASA640 - 4 2026-06-23
ASA412 Alaska Airlines 4 2026-04-13
ASA35 Alaska Airlines 4 2026-04-15
ASA778 - 3 2026-07-15
ASA747 - 3 2026-07-10
ASA745 Alaska Airlines 3 2026-05-22
ASA657 - 3 2026-07-14
ASA625 Alaska Airlines 3 2026-06-15
ASA61 Alaska Airlines 3 2026-05-24
ASA599 Alaska Airlines 3 2026-06-13
ASA596 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 ASA9420 SEA → GSO Jul 24, 15:35 UTCJul 24, 18:31 UTC2h 56m
2026-07-24 ASA9420 SEA → GSO Jul 24, 15:35 UTCJul 24, 18:40 UTC3h 5m
2026-07-24 ASA417 PIT → SEA Jul 24, 01:05 UTCJul 24, 03:05 UTC2h 0m
2026-07-24 ASA417 PIT → SEA Jul 24, 01:05 UTCJul 24, 03:15 UTC2h 10m
2026-07-23 ASA1395 SJD → SAN Jul 23, 22:00 UTCJul 23, 23:00 UTC1h 0m
2026-07-23 ASA1414 SAN → SJD Jul 23, 18:14 UTCJul 23, 20:10 UTC1h 56m
2026-07-23 ASA1470 ORD → SAN Jul 23, 11:30 UTCJul 23, 15:10 UTC3h 40m
2026-07-23 ASA376 SFO → LAX Jul 23, 06:10 UTCJul 23, 09:25 UTC3h 15m
2026-07-23 ASA1392 SJC → PVR Jul 23, 01:30 UTCJul 23, 03:45 UTC2h 15m
2026-07-22 ASA1447 PDX → SJC Jul 22, 19:45 UTCJul 22, 23:30 UTC3h 45m
2026-07-22 ASA1446 CUN → LAX Jul 22, 14:15 UTCJul 22, 18:05 UTC3h 50m
2026-07-22 ASA1472 EWR → SEA Jul 22, 04:20 UTCJul 22, 05:25 UTC1h 5m
2026-07-22 ASA249 DEN → SEA Jul 22, 00:30 UTCJul 22, 02:45 UTC2h 15m
2026-07-21 ASA242 MKE → SEA Jul 21, 20:40 UTCJul 21, 22:50 UTC2h 10m
2026-07-21 ASA361 OMA → SEA Jul 21, 13:45 UTCJul 21, 19:00 UTC5h 15m
2026-07-21 ASA367 MCO → SEA Jul 21, 06:05 UTCJul 21, 10:15 UTC4h 10m
2026-07-21 ASA371 FLL → SFO Jul 21, 03:30 UTCJul 21, 04:20 UTC50m
2026-07-21 ASA1433 SEA → GEG Jul 21, 01:15 UTCJul 21, 01:55 UTC40m
2026-07-20 ASA9806 JFK → PDX Jul 20, 19:00 UTCJul 20, 23:53 UTC4h 53m
2026-07-20 ASA9806 JFK → PDX Jul 20, 18:45 UTCJul 20, 23:55 UTC5h 9m
2026-07-20 ASA367 MCO → SEA Jul 20, 06:20 UTCJul 20, 10:30 UTC4h 10m
2026-07-20 ASA1431 BOS → SEA Jul 20, 02:20 UTCJul 20, 04:40 UTC2h 20m
2026-07-19 ASA1312 PDX → SAN Jul 19, 22:35 UTCJul 20, 00:45 UTC2h 10m
2026-07-19 ASA235 GDL → SJC Jul 19, 20:15 UTCJul 19, 21:25 UTC1h 10m
2026-07-19 ASA528 SFO → LAS Jul 19, 16:21 UTCJul 19, 18:19 UTC1h 58m
2026-07-19 ASA528 SFO → LAS Jul 19, 16:40 UTCJul 19, 18:30 UTC1h 50m
2026-07-19 ASA557 PDX → LAX Jul 19, 11:10 UTCJul 19, 14:20 UTC3h 10m
2026-07-19 ASA556 SFO → IAD Jul 19, 02:05 UTCJul 19, 04:45 UTC2h 40m
2026-07-18 ASA652 - Jul 18, 22:45 UTCJul 19, 00:30 UTC1h 45m
2026-07-18 ASA633 SAN → SEA Jul 18, 19:25 UTCJul 18, 21:15 UTC1h 50m
2026-07-18 ASA633 SAN → SEA Jul 18, 19:22 UTCJul 18, 21:25 UTC2h 3m
2026-07-18 ASA1426 LAX → ZIH Jul 18, 16:08 UTCJul 18, 17:32 UTC1h 24m
2026-07-18 ASA1426 LAX → ZIH Jul 18, 16:10 UTCJul 18, 17:45 UTC1h 35m
2026-07-18 ASA1310 SFO → DAL Jul 18, 04:15 UTCJul 18, 06:10 UTC1h 55m
2026-07-17 ASA218 SFO → PDX Jul 17, 22:00 UTCJul 18, 02:45 UTC4h 45m
2026-07-17 ASA784 PDX → ATL Jul 17, 14:50 UTCJul 17, 19:55 UTC5h 5m
2026-07-16 ASA19 JFK → PDX Jul 16, 21:35 UTCJul 17, 02:54 UTC5h 20m
2026-07-16 ASA19 JFK → PDX Jul 16, 21:30 UTCJul 17, 02:51 UTC5h 21m
2026-07-16 ASA20 - Jul 16, 14:40 UTCJul 16, 19:55 UTC5h 15m
2026-07-16 ASA634 LAS → SFO Jul 16, 01:30 UTCJul 16, 02:45 UTC1h 15m
2026-07-15 ASA778 PDX → LAS Jul 15, 22:10 UTCJul 16, 00:05 UTC1h 55m
2026-07-15 ASA778 PDX → LAS Jul 15, 22:06 UTCJul 15, 23:54 UTC1h 48m
2026-07-15 ASA576 - Jul 15, 18:40 UTCJul 15, 20:35 UTC1h 55m
2026-07-15 ASA577 PDX → SAN Jul 15, 14:45 UTCJul 15, 17:00 UTC2h 15m
2026-07-15 ASA1609 - Jul 15, 00:45 UTCJul 15, 04:05 UTC3h 20m
2026-07-14 ASA657 SEA → ANC Jul 14, 19:45 UTCJul 14, 23:00 UTC3h 14m
2026-07-14 ASA82 - Jul 14, 14:25 UTCJul 14, 17:25 UTC3h 0m
2026-07-14 ASA1415 FAI → ANC Jul 14, 01:55 UTCJul 14, 02:40 UTC45m
2026-07-13 ASA1552 SEA → FAI Jul 13, 21:45 UTCJul 14, 01:00 UTC3h 15m
2026-07-13 ASA795 SMF → SEA Jul 13, 15:10 UTCJul 13, 16:30 UTC1h 20m

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 N297AK page for operator, model, and routing details .

Mode-S A30F85 frequently asked

What is Mode-S code A30F85?
A30F85 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N297AK.
Where is Mode-S A30F85 registered?
Mode-S code A30F85 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 A30F85 broadcasting right now?
Yes. Mode-S A30F85 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A30F85, octal 50607605, decimal 10,686,341.
What flights does A30F85 operate?
Mode-S A30F85 has broadcast 20 distinct callsigns, including ASA573, ASA637, ASA503, ASA42, ASA310.