Prefix overview
Phone numbers in prefix 301-242
This page covers the 301-242 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
301-242
RATE CENTER
BRANDYWINE
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
MD
Prefix range
The prefix 301-242 includes numbers from 3012420000 to 3012429999.
This range is associated with the BRANDYWINE rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers