Call the service line and report it to them. The meter reader is not qualified
to make this decision. Generally speaking the power company owns everything up
to your "service point" which is usually the splice at your service mast drip
loop. You will notice the wire size changes there too. The customer usually
owns a service lateral (underground) out to the street.
Local tariffs are the final word but the folks at the service desk will have
that answer.
It is a lot easier to replace a guy wire now than to replace a pole after a
storm so they may just come fix it.