Prefix overview
Phone numbers in prefix 517-540
This page covers the 517-540 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
517-540
RATE CENTER
HOWELL
CARRIER
MICHIGAN BELL TEL CO
MI
Prefix range
The prefix 517-540 includes numbers from 5175400000 to 5175409999.
This range is associated with the HOWELL rate center and was originally assigned to MICHIGAN BELL TEL CO.
Numbers in this prefix
20 numbers