Prefix overview
Phone numbers in prefix 510-489
This page covers the 510-489 prefix in the United States. It shows where numbers come from, which carrier is linked to the range, and how this block is structured.
If you are looking for a specific number, you can continue to its dedicated phone page. Otherwise, this page helps you understand the broader number block behind it.
PREFIX
510-489
RATE CENTER
FRNK GRNLF
CARRIER
PACIFIC BELL
CA
Prefix range
The prefix 510-489 includes numbers from 5104890000 to 5104899999.
This range is associated with the FRNK GRNLF rate center and was originally assigned to PACIFIC BELL.
Numbers in this prefix
20 numbers