Prefix overview
Phone numbers in prefix 301-355
This page covers the 301-355 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
301-355
RATE CENTER
GAITHERSBG
CARRIER
VERIZON MARYLAND, INC.
MD
Prefix range
The prefix 301-355 includes numbers from 3013550000 to 3013559999.
This range is associated with the GAITHERSBG rate center and was originally assigned to VERIZON MARYLAND, INC..
Numbers in this prefix
20 numbers