The grades of 3 Wireless Telecommunication Services stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

United States Cellular Corporation’s (USM) ratings are looking better this week, moving up to a B from last week’s C. United States Cellular Corporation is a wireless telecommunications service provider. The company also gets A’s in earnings revisions and free cash flow. For more information, get Portfolio Grader’s complete analysis of USM stock.

The rating of NTT DOCOMO INC Sponsored ADR (DCM) moves up this week, rising from a B to a A. NTT DOCOMO INC Sponsored ADR is a wireless telecommunications services provider that offers wireless voice and data communication services on networks that are accessible by the entire population in Japan. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of DCM stock.

NTELOS Holdings Corp. (NTLS) is seeing ratings go up from a C last week to a B this week. NTELOS Holdings Corp. is a regional provider of digital wireless communications services to consumers and businesses primarily in Virginia and West Virginia, as well as parts of Maryland, North Carolina, Pennsylvania, Ohio, and Kentucky. The company also gets A’s in earnings surprise and earnings momentum. For more information, get Portfolio Grader’s complete analysis of NTLS stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.