Prefix overview
Phone numbers in prefix 510-263
This page covers the 510-263 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
510-263
RATE CENTER
OKLD ALMD
CARRIER
PACIFIC BELL
CA
Prefix range
The prefix 510-263 includes numbers from 5102630000 to 5102639999.
This range is associated with the OKLD ALMD rate center and was originally assigned to PACIFIC BELL.
Numbers in this prefix
20 numbers