Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AAB18C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7887A · BOEING 737-700 · operated by BANK OF UTAH TRUSTEE

Hex
AAB18C
Octal
52530614
Decimal
11,186,572
Country
US
Tail
N7887A
Type
B737
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
762
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S AAB18C.

Country allocation

The ICAO 24-bit address AAB18C 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
SWA1723 Southwest Airlines 9 2026-05-13
SWA356 - 7 2026-06-19
SWA1472 Southwest Airlines 7 2026-04-17
SWA670 Southwest Airlines 6 2026-07-21
SWA582 - 6 2026-07-15
SWA4074 Southwest Airlines 6 2026-06-19
SWA2664 - 6 2026-06-29
SWA2492 Southwest Airlines 6 2026-07-19
SWA1762 - 6 2026-07-11
SWA1533 Southwest Airlines 6 2026-05-12
SWA549 Southwest Airlines 5 2026-04-14
SWA4195 - 5 2026-07-03
SWA329 - 5 2026-06-19
SWA3078 Southwest Airlines 5 2026-04-27
SWA2673 - 5 2026-06-25
SWA169 Southwest Airlines 5 2026-05-08
SWA148 Southwest Airlines 5 2026-06-05
SWA735 Southwest Airlines 4 2026-04-16
SWA66 Southwest Airlines 4 2026-06-06
SWA659 Southwest Airlines 4 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA473 SEA → OAK Jul 26, 20:40 UTCJul 26, 22:45 UTC2h 5m
2026-07-26 SWA4501 SMF → SNA Jul 26, 16:30 UTCJul 26, 19:00 UTC2h 30m
2026-07-26 SWA4501 SMF → SNA Jul 26, 16:27 UTCJul 26, 18:38 UTC2h 11m
2026-07-26 SWA4501 SMF → SNA Jul 26, 13:30 UTCJul 26, 15:35 UTC2h 5m
2026-07-26 SWA4580 SAT → DAL Jul 26, 10:25 UTCJul 26, 12:10 UTC1h 45m
2026-07-25 SWA2627 SNA → SLC Jul 25, 22:40 UTCJul 26, 00:30 UTC1h 50m
2026-07-25 SWA3995 MCO → PHL Jul 25, 20:30 UTCJul 25, 21:10 UTC40m
2026-07-25 SWA3995 MCO → PHL Jul 25, 18:30 UTCJul 25, 18:50 UTC20m
2026-07-25 SWA894 SJC → LAX Jul 25, 13:25 UTCJul 25, 17:25 UTC4h 0m
2026-07-25 SWA894 SJC → LAX Jul 25, 10:20 UTCJul 25, 11:50 UTC1h 30m
2026-07-25 SWA1949 OAK → LAS Jul 25, 03:05 UTCJul 25, 04:40 UTC1h 35m
2026-07-24 SWA4493 SFO → PHX Jul 24, 23:55 UTCJul 25, 01:40 UTC1h 45m
2026-07-24 SWA1352 - Jul 24, 20:15 UTCJul 24, 21:00 UTC45m
2026-07-24 SWA1352 HNL → OAK Jul 24, 20:12 UTCJul 24, 22:20 UTC2h 8m
2026-07-24 SWA936 RDU → BWI Jul 24, 16:55 UTCJul 24, 19:10 UTC2h 15m
2026-07-24 SWA936 RDU → BWI Jul 24, 16:50 UTCJul 24, 19:08 UTC2h 19m
2026-07-24 SWA4605 - Jul 24, 14:30 UTCJul 24, 15:55 UTC1h 25m
2026-07-24 SWA683 BNA → TPA Jul 24, 12:05 UTCJul 24, 13:35 UTC1h 30m
2026-07-24 SWA4006 CMH → SRQ Jul 24, 00:55 UTCJul 24, 02:20 UTC1h 25m
2026-07-23 SWA1997 HNL → OAK Jul 23, 21:25 UTCJul 23, 23:20 UTC1h 55m
2026-07-23 SWA1997 HNL → OAK Jul 23, 21:24 UTCJul 23, 23:24 UTC2h 0m
2026-07-23 SWA159 SLC → DEN Jul 23, 19:15 UTCJul 23, 20:10 UTC55m
2026-07-23 SWA159 SLC → DEN Jul 23, 16:35 UTCJul 23, 18:20 UTC1h 45m
2026-07-23 SWA2604 - Jul 23, 14:10 UTCJul 23, 15:40 UTC1h 30m
2026-07-23 SWA4590 SJC → EUG Jul 23, 06:00 UTCJul 23, 10:10 UTC4h 10m
2026-07-23 SWA3675 - Jul 23, 03:05 UTCJul 23, 04:05 UTC1h 0m
2026-07-23 SWA3620 BWI → BOS Jul 23, 01:05 UTCJul 23, 02:00 UTC55m
2026-07-22 SWA3620 BWI → BOS Jul 22, 23:15 UTCJul 23, 00:05 UTC50m
2026-07-22 SWA2274 - Jul 22, 20:55 UTCJul 22, 21:40 UTC45m
2026-07-22 SWA2274 - Jul 22, 18:05 UTCJul 22, 20:00 UTC1h 55m
2026-07-22 SWA2274 OKC → DEN Jul 22, 15:45 UTCJul 22, 17:00 UTC1h 15m
2026-07-22 SWA4490 BWI → JAX Jul 22, 13:45 UTCJul 22, 14:45 UTC1h 0m
2026-07-22 SWA4490 BWI → JAX Jul 22, 13:43 UTCJul 22, 14:39 UTC56m
2026-07-22 SWA2097 BWI → BOS Jul 22, 11:30 UTCJul 22, 12:20 UTC50m
2026-07-22 SWA950 IND → PHX Jul 22, 01:10 UTCJul 22, 01:55 UTC45m
2026-07-21 SWA950 IND → PHX Jul 21, 22:05 UTCJul 22, 00:05 UTC2h 0m
2026-07-21 SWA554 PHX → AUS Jul 21, 18:30 UTCJul 21, 20:25 UTC1h 55m
2026-07-21 SWA554 PHX → AUS Jul 21, 16:20 UTCJul 21, 17:35 UTC1h 15m
2026-07-21 SWA4256 LAS → PHX Jul 21, 13:40 UTCJul 21, 15:05 UTC1h 25m
2026-07-21 SWA4256 LAS → PHX Jul 21, 13:36 UTCJul 21, 14:59 UTC1h 24m
2026-07-21 SWA3811 MSP → STL Jul 21, 03:40 UTCJul 21, 04:00 UTC20m
2026-07-21 SWA3811 MSP → STL Jul 21, 03:39 UTCJul 21, 04:02 UTC23m
2026-07-21 SWA670 SJC → BOI Jul 21, 00:45 UTCJul 21, 02:45 UTC2h 0m
2026-07-20 SWA670 SJC → BOI Jul 20, 22:40 UTCJul 20, 23:40 UTC1h 0m
2026-07-20 SWA670 SJC → BOI Jul 20, 21:10 UTCJul 20, 21:55 UTC45m
2026-07-20 SWA670 SJC → BOI Jul 20, 17:05 UTCJul 20, 20:05 UTC3h 0m
2026-07-20 SWA670 SJC → BOI Jul 20, 15:35 UTCJul 20, 16:05 UTC30m
2026-07-20 SWA1785 LAS → SFO Jul 20, 13:00 UTCJul 20, 14:05 UTC1h 5m
2026-07-20 SWA2712 DEN → AUS Jul 20, 03:55 UTCJul 20, 05:20 UTC1h 25m
2026-07-20 SWA2712 DEN → AUS Jul 20, 01:20 UTCJul 20, 03:05 UTC1h 45m

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 N7887A page for operator, model, and routing details .

Mode-S AAB18C frequently asked

What is Mode-S code AAB18C?
AAB18C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7887A.
Where is Mode-S AAB18C registered?
Mode-S code AAB18C 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 AAB18C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAB18C, octal 52530614, decimal 11,186,572.
What flights does AAB18C operate?
Mode-S AAB18C has broadcast 20 distinct callsigns, including SWA1723, SWA356, SWA1472, SWA670, SWA582.