Prefix overview
Phone numbers in prefix 301-371
This page covers the 301-371 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
301-371
RATE CENTER
MIDDLETOWN
CARRIER
VERIZON MARYLAND, INC.
MD
Prefix range
The prefix 301-371 includes numbers from 3013710000 to 3013719999.
This range is associated with the MIDDLETOWN rate center and was originally assigned to VERIZON MARYLAND, INC..
Numbers in this prefix
20 numbers