Prefix overview
Phone numbers in prefix 620-437
This page covers the 620-437 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
620-437
RATE CENTER
MADISON
CARRIER
MADISON TELEPHONE, LLC - KS
KS
Prefix range
The prefix 620-437 includes numbers from 6204370000 to 6204379999.
This range is associated with the MADISON rate center and was originally assigned to MADISON TELEPHONE, LLC - KS.
Numbers in this prefix
20 numbers