Take a look at this sample:
Create type phone_v as varray (3) of varchar2(13); --type creation
Create table person (name varchar2(100),phone phone_v); --table creation
--table data
insert into person values ('John',phone_v('0770 12','0789 00','0101'));
insert into person values ('David',phone_v('1','1','1'));
Now you can do something like this:
select * from person per
where exists (select 1 from table(per.phone) where column_value like '%0770%');
This query get data of all persons who have a phone number that contains 0770
, if you wants phones that starts with this number just change the like expression by 0770%