PlaneTrack / aircraft / N21699

N21699 - Cessna 172M

N21699 is a Cessna 172M operated by Hildreth William S, Mode-S hex code A1D381. Track it live, browse its recent flights, or download its full position history.

Photo © Joshua Bully | DOMINICA AVIATION / Planespotters

RegistrationN21699

Mode-S hexA1D381

ManufacturerCessna

Model172M

OperatorHildreth William S

Last seen2026-08-21 22:25 UTC

Last callsignN21699

Recently active. Last received 31 hours ago, possibly beyond receiver coverage or landed.

Open the live map Buy full history (CSV) API access

Flight history 7 flights since May 2026

Date	Callsign	From	To	Dep	Arr
2026-08-21	N21699	?	?	17:14Z	22:24Z
Route flown, from our receiver network. Green = start, red = end.
2026-08-16 (partial)	N21699	KCLS	?	14:02 PDT
Route flown, from our receiver network. Green = start, red = end.
2026-08-11	N21699	?	?	19:42Z	23:04Z
Route flown, from our receiver network. Green = start, red = end.

Earlier flights (4) - back to 2026-05-27

Date	Callsign	From	To	Dep	Arr
2026-07-17	N21699	KPDX	KBDN	09:47 PDT	12:32 PDT
Route flown, from our receiver network. Green = start, red = end.
2026-06-19 (partial)	N21699	KGRF	?	11:56 PDT
Route flown, from our receiver network. Green = start, red = end.
2026-06-17	N21699	KGRF	KTCM	12:34 PDT	15:00 PDT
Route flown, from our receiver network. Green = start, red = end.
2026-05-27 (partial)	N21699	KAUS	?	16:17 CDT
Route flown, from our receiver network. Green = start, red = end.

Times are local to each airport. Hover for UTC. Tap Map to see the route flown. Partial records have a confirmed departure but no reliable arrival fix.

Data access

Live position and 365-day history for this aircraft are available through the PlaneTrack API (commercial use from $29/month) and as one-off CSV extracts from our own receiver network archive.