https://nokiapoweruser.com/on-contract-lumia-521-sold-out-at-t-mobile-lumia-521-has-247-best-seller-rank-on-amazon-in-cell-phone-acces-list/
On-contract Lumia 521 sold out at T-Mobile. Lumia 521 has #247 best seller rank on Amazon in "Cell phone & acces" list.