Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABE77A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8660A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABE77A
Octal
52763572
Decimal
11,265,914
Country
US
Tail
N8660A
Type
B738
No current signal · last broadcast 10m ago
Flights observed
661
Distinct callsigns
20
Country
US
Last broadcast
10m ago

Last known position

Most recent position reported by Mode-S ABE77A.

Country allocation

The ICAO 24-bit address ABE77A 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
SWA4099 - 5 2026-07-13
SWA197 Southwest Airlines 5 2026-05-06
SWA3215 Southwest Airlines 4 2026-05-23
SWA3208 - 4 2026-07-14
SWA2889 Southwest Airlines 4 2026-04-13
SWA2591 - 4 2026-06-29
SWA208 Southwest Airlines 4 2026-05-26
SWA1266 Southwest Airlines 4 2026-04-16
SWA679 Southwest Airlines 3 2026-04-16
SWA591 Southwest Airlines 3 2026-06-04
SWA571 - 3 2026-06-21
SWA4271 - 3 2026-07-13
SWA4139 Southwest Airlines 3 2026-05-21
SWA4082 Southwest Airlines 3 2026-05-29
SWA3860 Southwest Airlines 3 2026-05-05
SWA3853 Southwest Airlines 3 2026-04-29
SWA3662 Southwest Airlines 3 2026-06-13
SWA3536 - 3 2026-07-10
SWA3445 Southwest Airlines 3 2026-05-20
SWA3266 - 3 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA102 - Jul 14, 04:05 UTCJul 14, 06:20 UTC2h 15m
2026-07-14 SWA3208 PHX → AUS Jul 14, 01:05 UTCJul 14, 03:10 UTC2h 5m
2026-07-13 SWA3208 - Jul 13, 21:30 UTCJul 13, 23:55 UTC2h 25m
2026-07-13 SWA4271 DEN → PDX Jul 13, 18:08 UTCJul 13, 20:15 UTC2h 8m
2026-07-13 SWA4271 DEN → PDX Jul 13, 18:10 UTCJul 13, 20:20 UTC2h 10m
2026-07-13 SWA4099 PDX → DEN Jul 13, 14:50 UTCJul 13, 16:55 UTC2h 5m
2026-07-13 SWA4099 SMF → PDX Jul 13, 12:25 UTCJul 13, 13:30 UTC1h 5m
2026-07-13 SWA224 PHX → SMF Jul 13, 07:17 UTCJul 13, 08:43 UTC1h 26m
2026-07-13 SWA224 - Jul 13, 07:20 UTCJul 13, 08:45 UTC1h 25m
2026-07-13 SWA224 ATL → PHX Jul 13, 02:45 UTCJul 13, 06:10 UTC3h 25m
2026-07-12 SWA2487 - Jul 12, 23:20 UTCJul 13, 01:05 UTC1h 45m
2026-07-12 SWA1595 - Jul 12, 20:05 UTCJul 12, 22:05 UTC2h 0m
2026-07-12 SWA1350 - Jul 12, 16:55 UTCJul 12, 18:55 UTC2h 0m
2026-07-12 SWA1350 DAL → MYR Jul 12, 16:52 UTCJul 12, 19:02 UTC2h 10m
2026-07-12 SWA487 - Jul 12, 14:15 UTCJul 12, 15:40 UTC1h 25m
2026-07-12 SWA2447 - Jul 12, 11:10 UTCJul 12, 13:01 UTC1h 50m
2026-07-12 SWA2447 LGA → BNA Jul 12, 11:10 UTCJul 12, 12:56 UTC1h 46m
2026-07-12 SWA2144 - Jul 12, 02:10 UTCJul 12, 03:55 UTC1h 45m
2026-07-12 SWA3253 - Jul 12, 00:25 UTCJul 12, 01:10 UTC45m
2026-07-11 SWA3476 - Jul 11, 21:25 UTCJul 11, 22:20 UTC55m
2026-07-11 SWA3476 MCI → IND Jul 11, 21:20 UTCJul 11, 22:22 UTC1h 2m
2026-07-11 SWA590 LAS → MCI Jul 11, 17:44 UTCJul 11, 20:08 UTC2h 24m
2026-07-11 SWA590 - Jul 11, 17:45 UTCJul 11, 20:10 UTC2h 25m
2026-07-11 SWA2464 - Jul 11, 13:30 UTCJul 11, 16:35 UTC3h 5m
2026-07-11 SWA2464 MDW → LAS Jul 11, 13:28 UTCJul 11, 16:37 UTC3h 10m
2026-07-11 SWA2464 LGA → MDW Jul 11, 10:15 UTCJul 11, 12:05 UTC1h 50m
2026-07-11 SWA4852 DAL → LGA Jul 11, 00:55 UTCJul 11, 04:01 UTC3h 5m
2026-07-11 SWA4852 DAL → LGA Jul 11, 00:55 UTCJul 11, 03:59 UTC3h 4m
2026-07-10 SWA489 BNA → DAL Jul 10, 21:25 UTCJul 10, 22:45 UTC1h 20m
2026-07-10 SWA489 BNA → DAL Jul 10, 21:20 UTCJul 10, 22:44 UTC1h 24m
2026-07-10 SWA3657 SJC → BNA Jul 10, 16:10 UTCJul 10, 19:55 UTC3h 45m
2026-07-10 SWA3536 SAN → SJC Jul 10, 13:52 UTCJul 10, 14:51 UTC59m
2026-07-10 SWA3536 - Jul 10, 13:55 UTCJul 10, 14:55 UTC1h 0m
2026-07-10 SWA2884 - Jul 10, 03:20 UTCJul 10, 07:35 UTC4h 15m
2026-07-10 SWA2884 MDW → SAN Jul 10, 03:19 UTCJul 10, 07:30 UTC4h 12m
2026-07-10 SWA1200 - Jul 10, 00:20 UTCJul 10, 01:10 UTC50m
2026-07-10 SWA1200 CMH → MDW Jul 10, 00:19 UTCJul 10, 01:08 UTC49m
2026-07-09 SWA1963 - Jul 9, 21:05 UTCJul 9, 23:15 UTC2h 10m
2026-07-09 SWA3673 - Jul 9, 16:35 UTCJul 9, 20:05 UTC3h 30m
2026-07-09 SWA1160 LAS → SJC Jul 9, 14:30 UTCJul 9, 15:35 UTC1h 5m
2026-07-09 SWA3676 - Jul 9, 06:05 UTCJul 9, 07:00 UTC55m
2026-07-09 SWA3676 SJC → LAS Jul 9, 06:01 UTCJul 9, 06:56 UTC55m
2026-07-09 SWA1727 DEN → SJC Jul 9, 03:00 UTCJul 9, 05:15 UTC2h 15m
2026-07-08 SWA2859 SJC → DEN Jul 8, 23:35 UTCJul 9, 01:35 UTC2h 0m
2026-07-08 SWA2859 SJC → DEN Jul 8, 23:35 UTCJul 9, 01:38 UTC2h 3m
2026-07-08 SWA2859 LGB → SJC Jul 8, 20:05 UTCJul 8, 20:55 UTC50m
2026-07-08 SWA1092 SLC → LGB Jul 8, 17:30 UTCJul 8, 19:00 UTC1h 30m
2026-07-08 SWA1885 - Jul 8, 13:40 UTCJul 8, 16:20 UTC2h 40m
2026-07-08 SWA1885 HOU → SLC Jul 8, 13:35 UTCJul 8, 16:13 UTC2h 38m
2026-07-08 SWA1628 - Jul 8, 11:10 UTCJul 8, 11:50 UTC40m

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 N8660A page for operator, model, and routing details .

Mode-S ABE77A frequently asked

What is Mode-S code ABE77A?
ABE77A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8660A.
Where is Mode-S ABE77A registered?
Mode-S code ABE77A 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 ABE77A broadcasting right now?
No active broadcast right now. Last signal was 10m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABE77A, octal 52763572, decimal 11,265,914.
What flights does ABE77A operate?
Mode-S ABE77A has broadcast 20 distinct callsigns, including SWA4099, SWA197, SWA3215, SWA3208, SWA2889.