Prefix overview
Phone numbers in prefix 414-203
This page covers the 414-203 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
414-203
RATE CENTER
MILWAUKZN1
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
WI
Prefix range
The prefix 414-203 includes numbers from 4142030000 to 4142039999.
This range is associated with the MILWAUKZN1 rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers