Prefix overview
Phone numbers in prefix 240-427
This page covers the 240-427 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
240-427
RATE CENTER
WALDORF
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
MD
Prefix range
The prefix 240-427 includes numbers from 2404270000 to 2404279999.
This range is associated with the WALDORF rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers