OREANDA-NEWS. A.M. Best has revised the outlooks for positive from stable and affirmed the financial strength rating of B++ (Good) and the issuer credit rating of “bbb+” of National Telcom Corporation (NTC) (Burlington, VT). This action is based on the company’s improved operating and underwriting results in recent years, driven by improved expense management. In addition, the company has reduced its dependence on third-party fronting agreements through the investment in an affiliated start-up company, Rural Trust Insurance Company.