Prefix overview
Phone numbers in prefix 307-315
This page covers the 307-315 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
307-315
RATE CENTER
CASPER
CARRIER
CHARTER IP ENABLED SERVICES, LLC
WY
Prefix range
The prefix 307-315 includes numbers from 3073150000 to 3073159999.
This range is associated with the CASPER rate center and was originally assigned to CHARTER IP ENABLED SERVICES, LLC.
Numbers in this prefix
20 numbers