I'll pull a number like a pager

from Nas – Halftime Lyrics on Rap Genius

Meaning

Just as a pager (the proto-iphone; people could “beep” you their number, or use an alphanumeric code to send Stone Age BBMs) “pulls” (displays) numbers, Nas “pulls” (obtains) girls' telephone numbers

It is also possible that “Pulling a number” to killing someone, as in “Pull their card”

To help improve the meaning of these lyrics, visit “Halftime” by Nas Lyrics and leave a comment on the lyrics box