Every year, millions of phone numbers get reassigned to strangers, and the accounts tied to them often stay behind. If you're switching numbers or carriers, a short audit now can save you from handing someone the keys to your email, bank, and messaging apps.

A phone number feels like a personal possession, but treat it as a reusable resource. When you cancel a line or let a prepaid plan lapse, the number goes through an aging period and then returns to the pool.

In the United States, FCC rules require at least 45 days before a disconnected number can be reassigned, and residential numbers can be held for no more than 90 days. Industry estimates citing the FCC put the number of recycled lines at roughly 35 million a year. Rules and timelines elsewhere vary considerably. But after the deadline passes, the phone number becomes assignable once again, and chances are it'll get reassigned relatively quickly. This is also why when you get a new number, you might still get phone calls and text messages meant for someone else for months, if not years. The number is yours, but for years before that, it belonged to someone else.

The problem is that websites and apps don't know your number changed hands, and unless you do that manually, they will never know. Whatever you linked to it years ago stays linked: password resets, two-factor prompts, account recovery options, even the login itself on messaging apps that use your number as your identity.

Source link