Samsung was the top handset manufacturer with the US market share of 24.5%, while RIM led among smartphone platforms with 33.5% market share in the US in November 2010, according to data released by comScore.

The firm’s data for three months ending November 2010 shows that Samsung was followed by LG with a market share of 20.9%, Motorola with 17%, RIM with 8.8% share and Nokia with 7.2% market share.

During the same period, except for Samsung, the other handset manufacturers registered decline in their US market share.

Motorola’s market share was down by 1.8 percentage points to 17% from 18.8% between August 2010 and November 2010, LG was down by 0.3 percentage points, RIM was down by 0.3 percentage points and Nokia fell by 0.4 percentage points.

RIM leads mobile smartphone platform in the US with 33.5% market share of total US smartphone subscribers, falling 4.1 percentage points versus the prior period ended.

Google was at second spot with 26% market share, followed by Apple, Microsoft and Palm with 25%, 9% and 3.9% market share, respectively.

According to comScore, in an average month during August through September 2010 time period, 67.1% of US mobile subscribers used text messaging on their mobile device, up 0.5 percentage points from three months prior.

Browsers were used by 35.3% of US mobile subscribers, up 0.8 percentage points, while subscribers who used downloaded applications made up 33.4%.

In addition, the firm found that 23.5% of mobile subscribers accessed social networking site or blog, an increase of 1 percentage points from 22.5% for three months ended November 2010.