Apparatus

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sensors Mode-S transponder

A97C18

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N710AL · BOEING 737 MAX 9 · operated by ALASKA AIRLINES INC

Hex
A97C18
Octal
52276030
Decimal
11,107,352
Country
US
Tail
N710AL
Type
B39M
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
472
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A97C18.

Country allocation

The ICAO 24-bit address A97C18 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
ASA626 - 6 2026-07-06
ASA535 - 6 2026-06-29
ASA270 - 6 2026-07-13
ASA309 - 5 2026-07-15
ASA240 Alaska Airlines 5 2026-06-01
ASA1402 - 5 2026-06-30
ASA1394 Alaska Airlines 5 2026-05-17
ASA90 Alaska Airlines 4 2026-07-07
ASA775 - 4 2026-06-15
ASA673 - 4 2026-06-30
ASA629 Alaska Airlines 4 2026-04-17
ASA596 Alaska Airlines 4 2026-05-17
ASA592 Alaska Airlines 4 2026-06-03
ASA575 - 4 2026-07-13
ASA514 - 4 2026-07-17
ASA279 Alaska Airlines 4 2026-05-29
ASA252 Alaska Airlines 4 2026-07-08
ASA242 Alaska Airlines 4 2026-05-29
ASA1609 Alaska Airlines 4 2026-07-20
ASA1308 Alaska Airlines 4 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA410 SEA → ORD Jul 26, 21:50 UTCJul 26, 22:00 UTC10m
2026-07-26 ASA656 LAX → SFO Jul 26, 18:10 UTCJul 26, 19:40 UTC1h 30m
2026-07-26 ASA725 LAS → PDX Jul 26, 15:00 UTCJul 26, 16:50 UTC1h 50m
2026-07-26 ASA54 ANC → LAS Jul 26, 09:50 UTCJul 26, 12:55 UTC3h 5m
2026-07-26 ASA212 SEA → SJC Jul 26, 03:25 UTCJul 26, 07:25 UTC4h 1m
2026-07-25 ASA1407 SJC → SEA Jul 25, 18:50 UTCJul 26, 01:25 UTC6h 35m
2026-07-25 ASA725 LAS → PDX Jul 25, 15:06 UTCJul 25, 16:51 UTC1h 45m
2026-07-25 ASA725 LAS → PDX Jul 25, 15:05 UTCJul 25, 17:05 UTC2h 0m
2026-07-25 ASA1498 SEA → SFO Jul 25, 09:10 UTCJul 25, 12:10 UTC3h 0m
2026-07-25 ASA212 SEA → SJC Jul 25, 03:40 UTCJul 25, 07:50 UTC4h 10m
2026-07-25 ASA1385 SJC → SEA Jul 25, 00:25 UTCJul 25, 02:15 UTC1h 50m
2026-07-24 ASA1305 LAX → SEA Jul 24, 20:35 UTCJul 24, 22:30 UTC1h 55m
2026-07-24 ASA1602 SFO → LAX Jul 24, 18:10 UTCJul 24, 19:05 UTC55m
2026-07-24 ASA526 PDX → SFO Jul 24, 14:55 UTCJul 24, 16:35 UTC1h 40m
2026-07-24 ASA1566 BOI → PDX Jul 24, 12:30 UTCJul 24, 13:20 UTC50m
2026-07-24 ASA1524 DTW → SEA Jul 24, 04:46 UTCJul 24, 05:34 UTC48m
2026-07-24 ASA1524 DTW → SEA Jul 24, 04:50 UTCJul 24, 05:40 UTC50m
2026-07-23 ASA1319 SFO → PDX Jul 23, 21:10 UTCJul 24, 02:50 UTC5h 40m
2026-07-23 ASA390 SAN → BOS Jul 23, 14:25 UTCJul 23, 19:35 UTC5h 10m
2026-07-22 ASA474 ATL → SAN Jul 22, 23:35 UTCJul 23, 04:10 UTC4h 35m
2026-07-22 ASA434 SFO → IAD Jul 22, 16:55 UTCJul 22, 21:35 UTC4h 40m
2026-07-22 ASA25 BOS → SEA Jul 22, 04:27 UTCJul 22, 09:34 UTC5h 7m
2026-07-22 ASA25 BOS → SEA Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-21 ASA24 BNA → JFK Jul 21, 23:35 UTCJul 22, 01:40 UTC2h 5m
2026-07-21 ASA24 BNA → JFK Jul 21, 23:27 UTCJul 22, 01:24 UTC1h 57m
2026-07-21 ASA24 - Jul 21, 15:15 UTCJul 21, 20:25 UTC5h 10m
2026-07-20 ASA474 ATL → SAN Jul 20, 23:50 UTCJul 21, 04:35 UTC4h 45m
2026-07-20 ASA434 SFO → IAD Jul 20, 17:10 UTCJul 20, 21:50 UTC4h 40m
2026-07-20 ASA1470 ORD → SAN Jul 20, 11:30 UTCJul 20, 14:55 UTC3h 25m
2026-07-20 ASA376 SFO → LAX Jul 20, 06:15 UTCJul 20, 09:25 UTC3h 10m
2026-07-20 ASA1609 ANC → PDX Jul 20, 00:26 UTCJul 20, 03:30 UTC3h 4m
2026-07-20 ASA1609 ANC → PDX Jul 20, 00:20 UTCJul 20, 03:40 UTC3h 20m
2026-07-19 ASA486 AKN → ANC Jul 19, 21:55 UTCJul 19, 22:40 UTC45m
2026-07-19 ASA586 ANC → AKN Jul 19, 19:30 UTCJul 19, 20:20 UTC50m
2026-07-19 ASA586 ANC → AKN Jul 19, 19:28 UTCJul 19, 20:16 UTC48m
2026-07-19 ASA79 SEA → ANC Jul 19, 15:05 UTCJul 19, 18:12 UTC3h 7m
2026-07-19 ASA79 SEA → ANC Jul 19, 15:05 UTCJul 19, 18:15 UTC3h 10m
2026-07-19 ASA1399 MZT → LAX Jul 19, 00:25 UTCJul 19, 02:20 UTC1h 55m
2026-07-18 ASA1604 - Jul 18, 22:15 UTCJul 18, 23:10 UTC55m
2026-07-18 ASA227 JFK → SFO Jul 18, 15:10 UTCJul 18, 20:35 UTC5h 25m
2026-07-18 ASA22 SEA → JFK Jul 18, 07:00 UTCJul 18, 11:40 UTC4h 40m
2026-07-18 ASA611 - Jul 18, 02:50 UTCJul 18, 05:15 UTC2h 25m
2026-07-17 ASA515 - Jul 17, 22:05 UTCJul 18, 01:05 UTC3h 0m
2026-07-17 ASA514 - Jul 17, 18:10 UTCJul 17, 20:40 UTC2h 30m
2026-07-17 ASA1349 PDX → PHX Jul 17, 14:15 UTCJul 17, 16:34 UTC2h 20m
2026-07-17 ASA525 - Jul 17, 04:29 UTCJul 17, 05:39 UTC1h 10m
2026-07-17 ASA525 SFO → PDX Jul 17, 04:27 UTCJul 17, 05:40 UTC1h 13m
2026-07-17 ASA1610 - Jul 17, 01:59 UTCJul 17, 03:05 UTC1h 5m
2026-07-16 ASA1604 - Jul 16, 21:25 UTCJul 16, 22:19 UTC55m
2026-07-16 ASA1604 SFO → LAX Jul 16, 21:21 UTCJul 16, 22:08 UTC47m

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 N710AL page for operator, model, and routing details .

Mode-S A97C18 frequently asked

What is Mode-S code A97C18?
A97C18 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N710AL.
Where is Mode-S A97C18 registered?
Mode-S code A97C18 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 A97C18 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A97C18, octal 52276030, decimal 11,107,352.
What flights does A97C18 operate?
Mode-S A97C18 has broadcast 20 distinct callsigns, including ASA626, ASA535, ASA270, ASA309, ASA240.