The US wireless ISP Clearwire has reported a 47% jump in consolidated service revenues for the three months to the end of September on the back of strong subscriber growth. Revenues for the third quarter reached USD60.8 million, from USD41.3 million a year earlier, with customer numbers climbing from 348,000 to 469,000 over the same period. The firm says consolidated average revenue per user (ARPU) hit a record of USD40.43, up by over USD3.00 on the 3Q 2007 figure. Net loss for the third quarter stood at USD166.6 million compared to a loss of USD328.6 million a year before, though the 2007 period included a non-cash charge of USD159.2 million related to extinguishment of debt. The US telecoms regulator the Federal Communications Commission (FCC) recently approved a deal which will see Clearwire merge with the WiMAX business of cellular operator Sprint Nextel. Clearwire shareholders will vote on the proposed deal on 20 November.