Prefix overview
Phone numbers in prefix 510-388
This page covers the 510-388 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
510-388
RATE CENTER
OKLD MN-PD
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 510-388 includes numbers from 5103880000 to 5103889999.
This range is associated with the OKLD MN-PD rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers