- ge ographic ▁number ing ▁ranges ▁to ▁bring ▁them ▁in ▁the ▁ 0 8 xx ▁special ▁services ▁range . ▁ ▁The ▁ 0 5 0 0 ▁( Mer cur y ▁Free Call ) ▁code ▁remained ▁in ▁use ▁after ▁The ▁Big ▁Number ▁Change , ▁but ▁no ▁new ▁numbers ▁were ▁allocated ▁after ▁ 2 8 ▁April ▁ 2 0 0 1 . ▁The ▁ 0 5 0 0 ▁range ▁was ▁eventually ▁ceased ▁on ▁ 3 ▁June ▁ 2 0 1 7 , ▁with ▁numbers ▁transferred ▁to ▁ 0 8 0 8 ▁ 5 xx ▁x xxx ▁equival ents ▁during ▁a ▁three ▁year ▁transition ▁period ▁prior ▁to ▁that ▁date . ▁ ▁The ▁ 0 8 0 0 ▁( B T ▁Free f one ) ▁code ▁has ▁remained , ▁but ▁no ▁new ▁nine ▁digit ▁numbers ▁have ▁been ▁allocated ▁since ▁ 1 9 9 7 . ▁Instead , ▁all ▁ 0 8 0 0 ▁numbers ▁issued ▁since ▁that ▁time ▁have ▁ten ▁digits ▁after ▁the ▁leading ▁ 0 ▁or ▁+ 4 4 . ▁ ▁Prem ium ▁rate ▁ ▁The ▁following ▁changes ▁were ▁made ▁to ▁non - ge ographic ▁number ing ▁ranges ▁to ▁bring ▁them ▁in ▁the ▁▁ 0 9 0 x ▁prem ium ▁rate ▁range . ▁ ▁Mobile , ▁p ager ▁and ▁personal ▁number ▁changes ▁ ▁Personal ▁numbers ▁ ▁Personal ▁numbers ▁moved ▁to ▁the ▁ 0 7 0 ▁range . ▁ ▁Mobile ▁numbers ▁ ▁The ▁following ▁changes ▁were ▁made ▁to ▁mobile ▁phone ▁number ing ▁ranges ▁to ▁bring ▁them ▁in ▁the ▁ 0 7 xxx ▁mobile ▁numbers ▁range . ▁