Carrier profile · USDOT 450926 · Updated Jun 13, 2026

Radio Research Instrument Co Inc

1 power unitWATERBURY, CT50/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORY
Verified linksFMCSA SAFER

Identity & Federal

The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.

Location

Operation
Interstate

Contact

Fax
(203) 754-2567

Registration

Officer
Paul J Plishener
USDOT / docket
450926
First registered
Jul 8, 1991
Last MCS-150
Jun 26, 2012 · 1 mi (2011)
FMCSA safety rating
Satisfactory · Mar 10, 1993
D-U-N-S
30612725

Fleet (self-reported · MCS-150)

1Power units
1Drivers
1CDL drivers
1Annual mileage

MCS-150 filing history· biennial-update cadence

Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.