Seeing 411 All the Time

You're probably seeing 411 as often as you are because you're familiar with the number. 4-11 is your birth date.

Numbers seen repetitively generally are numbers with a personal familiarity or meaning or that contain emotional significance.

Actually, other numbers are seen, too. But certain numbers are remembered as being seen and, with that memory in place, can feel like they're the only numbers being seen.

Wondering if there's personal signficance can have the effect of making you see the number still more often. The people seeing the same number again and again article explains how that works.