Prefix overview
Phone numbers in prefix 517-531
This page covers the 517-531 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
517-531
RATE CENTER
PARMA
CARRIER
FRONTIER MIDSTATES, INC. - MI
MI
Prefix range
The prefix 517-531 includes numbers from 5175310000 to 5175319999.
This range is associated with the PARMA rate center and was originally assigned to FRONTIER MIDSTATES, INC. - MI.
Numbers in this prefix
20 numbers