Prefix overview
Phone numbers in prefix 983-984
This page covers the 983-984 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
983-984
RATE CENTER
DENVER
CARRIER
MASH TELECOM INC.
CO
Prefix range
The prefix 983-984 includes numbers from 9839840000 to 9839849999.
This range is associated with the DENVER rate center and was originally assigned to MASH TELECOM INC..
Numbers in this prefix
20 numbers