Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT Name of Subsidiary Jurisdiction of Incorporation ------------------ ----------------------------- Proxim Wireless Corporation Delaware Ricochet Networks, Inc. Delaware Terabeam Corporation Washington Terabeam International Holdings, Inc. Delaware Proxim International Operations, Inc. Delaware Proxim Europe B.V. Netherlands Proxim Hong Kong Limited Hong Kong KarlNet, Inc. Delaware Young Design, Inc. Virginia