T-Mobile has begun another wave of price hikes, this time hitting customers with legacy plans.

Some T-Mobile customers with older cellphone plans learned yesterday that their bills will see a $5-per-line increase beginning with their April or May bills. This comes after the company raised rates last June on other legacy plans.

Price increases start rolling out on April 2. 'We are updating the prices on some of our older phone plans in response to rising costs,' T-Mobile says.