Prefix overview
Phone numbers in prefix 279-399
This page covers the 279-399 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
279-399
RATE CENTER
SCRM MAIN
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
CA
Prefix range
The prefix 279-399 includes numbers from 2793990000 to 2793999999.
This range is associated with the SCRM MAIN rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers