Apparatus

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sensors Mode-S transponder

A27F07

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N260AK · BOEING 737-900 · operated by ALASKA AIRLINES INC

Hex
A27F07
Octal
50477407
Decimal
10,649,351
Country
US
Tail
N260AK
Type
B739
Broadcasting now · callsign ASA208 · 34,000 ft
Flights observed
445
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Current position

A27F07 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A27F07 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
ASA771 - 8 2026-06-28
ASA637 Alaska Airlines 7 2026-07-24
ASA450 Alaska Airlines 6 2026-07-25
ASA419 Alaska Airlines 6 2026-04-15
ASA775 Alaska Airlines 5 2026-05-30
ASA418 - 5 2026-06-14
ASA680 Alaska Airlines 4 2026-07-24
ASA668 Alaska Airlines 4 2026-04-17
ASA500 - 4 2026-07-14
ASA328 Alaska Airlines 4 2026-05-31
ASA300 Alaska Airlines 4 2026-04-14
ASA226 Alaska Airlines 4 2026-05-09
ASA141 Alaska Airlines 4 2026-04-16
ASA98 - 3 2026-06-25
ASA798 - 3 2026-06-26
ASA767 Alaska Airlines 3 2026-04-26
ASA698 - 3 2026-07-02
ASA644 Alaska Airlines 3 2026-06-15
ASA632 Alaska Airlines 3 2026-06-11
ASA624 - 3 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA446 PHL → SEA Jul 26, 21:15 UTCJul 26, 21:45 UTC30m
2026-07-26 ASA208 SEA → SFO Jul 26, 18:05 UTCJul 26, 20:00 UTC1h 55m
2026-07-26 ASA344 LAX → IAD Jul 26, 11:25 UTCJul 26, 15:50 UTC4h 25m
2026-07-26 ASA343 EWR → LAX Jul 26, 05:30 UTCJul 26, 08:50 UTC3h 21m
2026-07-25 ASA450 CMH → SEA Jul 25, 22:40 UTCJul 26, 03:15 UTC4h 35m
2026-07-25 ASA450 CMH → SEA Jul 25, 17:35 UTCJul 25, 21:15 UTC3h 40m
2026-07-25 ASA519 FLL → SEA Jul 25, 12:10 UTCJul 25, 15:55 UTC3h 45m
2026-07-25 ASA520 SEA → FLL Jul 25, 06:50 UTCJul 25, 10:25 UTC3h 35m
2026-07-25 ASA1368 SFO → PVR Jul 25, 02:35 UTCJul 25, 04:50 UTC2h 15m
2026-07-25 ASA1523 LAX → SJO Jul 25, 00:10 UTCJul 25, 01:10 UTC1h 0m
2026-07-24 ASA680 PDX → PHX Jul 24, 20:45 UTCJul 24, 22:50 UTC2h 5m
2026-07-24 ASA680 PDX → PHX Jul 24, 20:48 UTCJul 24, 22:31 UTC1h 43m
2026-07-24 ASA637 PHX → SEA Jul 24, 16:25 UTCJul 24, 18:55 UTC2h 30m
2026-07-24 ASA637 PHX → SEA Jul 24, 16:23 UTCJul 24, 18:38 UTC2h 15m
2026-07-24 ASA746 PVR → LAX Jul 24, 01:20 UTCJul 24, 04:00 UTC2h 40m
2026-07-23 ASA325 ORD → PDX Jul 23, 20:00 UTCJul 23, 23:50 UTC3h 50m
2026-07-23 ASA324 SEA → SJC Jul 23, 14:15 UTCJul 23, 17:35 UTC3h 20m
2026-07-23 ASA1397 CUN → SAN Jul 23, 03:00 UTCJul 23, 04:55 UTC1h 55m
2026-07-22 ASA534 SFO → AUS Jul 22, 18:15 UTCJul 23, 01:00 UTC6h 45m
2026-07-22 ASA581 SEA → PSP Jul 22, 14:15 UTCJul 22, 15:45 UTC1h 30m
2026-07-22 ASA581 SEA → PSP Jul 22, 14:20 UTCJul 22, 16:13 UTC1h 53m
2026-07-21 ASA450 CMH → SEA Jul 21, 22:20 UTCJul 22, 03:00 UTC4h 40m
2026-07-21 ASA450 CMH → SEA Jul 21, 17:10 UTCJul 21, 20:45 UTC3h 35m
2026-07-21 ASA715 EWR → SEA Jul 21, 11:10 UTCJul 21, 15:25 UTC4h 15m
2026-07-21 ASA538 SFO → LAS Jul 21, 01:25 UTCJul 21, 04:40 UTC3h 15m
2026-07-20 ASA790 SEA → EWR Jul 20, 22:20 UTCJul 20, 23:50 UTC1h 30m
2026-07-20 ASA570 SAN → SEA Jul 20, 17:35 UTCJul 20, 18:40 UTC1h 5m
2026-07-20 ASA570 SAN → SEA Jul 20, 17:32 UTCJul 20, 18:32 UTC1h 0m
2026-07-20 ASA718 LAS → SFO Jul 20, 14:35 UTCJul 20, 15:50 UTC1h 15m
2026-07-20 ASA628 SEA → JFK Jul 20, 04:50 UTCJul 20, 06:45 UTC1h 55m
2026-07-19 ASA601 SEA → SFO Jul 19, 23:25 UTCJul 20, 00:40 UTC1h 15m
2026-07-19 ASA273 PDX → SFO Jul 19, 19:15 UTCJul 19, 20:35 UTC1h 20m
2026-07-19 ASA640 TPA → SEA Jul 19, 11:55 UTCJul 19, 17:00 UTC5h 5m
2026-07-19 ASA639 PHX → SEA Jul 19, 05:15 UTCJul 19, 10:10 UTC4h 55m
2026-07-18 ASA450 - Jul 18, 22:55 UTCJul 19, 03:30 UTC4h 35m
2026-07-18 ASA450 SEA → CMH Jul 18, 17:15 UTCJul 18, 21:25 UTC4h 10m
2026-07-18 ASA283 EWR → PDX Jul 18, 11:20 UTCJul 18, 15:40 UTC4h 20m
2026-07-18 ASA280 EWR → SEA Jul 18, 05:30 UTCJul 18, 09:25 UTC3h 55m
2026-07-18 ASA339 SFO → JFK Jul 18, 00:25 UTCJul 18, 04:10 UTC3h 46m
2026-07-17 ASA604 SEA → AUS Jul 17, 19:09 UTCJul 17, 22:55 UTC3h 45m
2026-07-17 ASA215 AUS → SEA Jul 17, 13:40 UTCJul 17, 17:40 UTC4h 0m
2026-07-17 ASA1370 PVR → SFO Jul 17, 01:00 UTCJul 17, 04:39 UTC3h 40m
2026-07-16 ASA756 LAS → PDX Jul 16, 21:45 UTCJul 16, 23:29 UTC1h 45m
2026-07-16 ASA757 PDX → LAS Jul 16, 18:25 UTCJul 16, 20:19 UTC1h 55m
2026-07-16 ASA757 PDX → LAS Jul 16, 18:05 UTCJul 16, 20:16 UTC2h 11m
2026-07-16 ASA679 SJC → PDX Jul 16, 15:05 UTCJul 16, 16:30 UTC1h 25m
2026-07-16 ASA679 SJC → PDX Jul 16, 15:04 UTCJul 16, 16:23 UTC1h 19m
2026-07-16 ASA539 SEA → SJC Jul 16, 01:20 UTCJul 16, 03:20 UTC2h 0m
2026-07-16 ASA539 SEA → SJC Jul 16, 01:19 UTCJul 16, 03:13 UTC1h 54m
2026-07-15 ASA580 BUR → SEA Jul 15, 20:56 UTCJul 15, 22:23 UTC1h 27m

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 N260AK page for operator, model, and routing details .

Mode-S A27F07 frequently asked

What is Mode-S code A27F07?
A27F07 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N260AK.
Where is Mode-S A27F07 registered?
Mode-S code A27F07 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 A27F07 broadcasting right now?
Yes. Mode-S A27F07 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A27F07, octal 50477407, decimal 10,649,351.
What flights does A27F07 operate?
Mode-S A27F07 has broadcast 20 distinct callsigns, including ASA771, ASA637, ASA450, ASA419, ASA775.