SOURCE: Spirent Communications PLC

June 22, 2006 12:06 ET

Spirent Communications plc announces Transaction in Own Shares

Crawley, UK -- (MARKET WIRE) -- June 22, 2006 --

Spirent Communications plc announces that on 22 June 2006 it purchased from JPMorgan Cazenove Limited 1,000,000 Spirent Communications plc ordinary shares at an average price of 38.9257 pence per share. The purchased shares will be held as treasury shares. Following the above purchase, Spirent Communications plc holds 16,440,000 Spirent Communications plc ordinary shares in treasury, and has 954,355,507 Spirent Communications plc ordinary shares in issue (excluding treasury shares).

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