LIVE DATA
Telemetry Active
Today 2026-09-17
Data refreshed 00:00 UTC
Refresh in 04:59

N39728

Type: Boeing 737-700 (B737) Mode S Hex: A49F89 Operator: United Airlines Status: ACTIVE

Airframe N39728 Key Facts

  • Airframe N39728 (Boeing 737-700) was last observed on 2026-09-17 at monitored terminal (Global Airspace).
  • Current operational status is classified as ACTIVE with 0 consecutive days unobserved.
  • Registered Mode S 24-bit transponder address is A49F89 with manufacturer serial number (MSN) 28944.
N39728 (Boeing 737-700)
Boeing 737-700 · Operated by United Airlines Reference: Acroterion
Aviation Spotter Galleries for Tail N39728:
Planespotters.net → JetPhotos → FlightRadar24 Telemetry →

Registry Record

Registration Mark
N39728
Manufacturer Serial Number (MSN)
28944
Mode S 24-bit ICAO Hex
a49f89
Registered Owner
United Airlines Inc
Lessor / Financing
AerCap
Estimated Airframe Age
6.8 years
Resolution Confidence
HIGH

Observation & Telemetry State

Current Status
ACTIVE
First Observed Date
2020-01-01
Last Observed Date
2026-09-17
Last Observed Airport
Unassigned Airspace
Days Without Observed Flight
0 days

Airframe Lifecycle & Genealogy History

MSN 28944 • Hex A49F89
2019 OEM Production
Assembled by Boeing
Manufactured as Boeing 737-700 with Manufacturer Serial Number 28944 and assigned ICAO Mode S hex A49F89.
2019 Commercial Entry
Delivered into Commercial Service
Accepted into commercial scheduled operations under tail registration N39728.
2022 Asset Financing
Financed by AerCap
Placed under operating lease portfolio with long-term placement agreement and institutional asset management.
2026 (Current) ACTIVE
Operated by United Airlines
Current observed airframe age is 6.8 years. Telemetry active across global ADS-B tracking corridors.

90-Day Observed Activity Strip

Daily flight activity observations over the previous 90-day window.

Observed ADS-B Signal Unobserved / On Ground

Observed Flight Corridor History

CYYZ-KATLKATL-KLAXKLAX-KJFK