Prefix overview
Phone numbers in prefix 971-300
This page covers the 971-300 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
971-300
RATE CENTER
PORTLAND
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OR
Prefix range
The prefix 971-300 includes numbers from 9713000000 to 9713009999.
This range is associated with the PORTLAND rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers