EXHIBIT 21 LIST OF SUBSIDIARIES

SHENANDOAH TELECOMMUNICATIONS COMPANY AND SUBSIDIARIES

The following are all significant subsidiaries of Shenandoah Telecommunications Company, and are organized in the Commonwealth of Virginia.

Shenandoah Cable Television, LLC

Shenandoah Mobile, LLC

Shenandoah Personal Communications, LLC

Shenandoah Telephone Company

Shentel Management Company