Prefix overview
Phone numbers in prefix 831-318
This page covers the 831-318 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
831-318
RATE CENTER
APTOS
CARRIER
ONVOY, LLC - CA
CA
Prefix range
The prefix 831-318 includes numbers from 8313180000 to 8313189999.
This range is associated with the APTOS rate center and was originally assigned to ONVOY, LLC - CA.
Numbers in this prefix
20 numbers