Beating Wall Street expectations only slightly, OpenTable (UNKNOWN:UNKNOWN) hasn't moved much in after-market trading. Fourth quarter earnings came in at $0.46 per diluted share ($10.7 million total), which topped estimates by $0.03.

Across 2012, the company increased revenues 16%, to $161.6 million. OpenTable mirrored that increase in Q4, bringing in 16% more revenues year over year to a total of $43.0 million -- beating estimates of $42.5 million. This quarter, North America business continued to drive the top line, bringing in 16% more than its International segment, at 13% on a year-over-year basis; that translates to $36.7 million and $6.3 million, respectively.

The company also saw growth in its restaurant customers and in seated diners.

Currently, OpenTable grew its restaurant base by 9.5%, to 27,517; 19,801 comes from North American merchants, and 7,716 are international. After adjusting for a relaunch of its toptable site in Q2 2012, OpenTable says that its international installation base actually saw a 62% increase over 2011.

Seated diners increased by 22.3%, to 32.8 million, compared to Q4 2011. North America accounted for 29.9 million diners, growing 21%, while International diners grew 35%, and totaled 3.0 million.

Matt Roberts, President and CEO of OpenTable, said:

Our business continued to demonstrate strong momentum in 2012. The shift to mobile coupled with richer customer experiences represent long-term opportunities for the business, and we're pleased with the recent progress in our international segment.

Going forward, OpenTable expects revenues to be around $44.7-$46.1 million next quarter, and $186.1-$193.1 million next year. Non-GAAP EPS should be in the range of $1.79 to $1.96 for the year, while next quarter EPS should range from $0.39 to $0.44;