Prefix overview
Phone numbers in prefix 301-250
This page covers the 301-250 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
301-250
RATE CENTER
GAITHERSBG
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
MD
Prefix range
The prefix 301-250 includes numbers from 3012500000 to 3012509999.
This range is associated with the GAITHERSBG rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers