Prefix overview
Phone numbers in prefix 507-394
This page covers the 507-394 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
507-394
RATE CENTER
NOLTL ROCK
CARRIER
NORTHERN IOWA TEL. CO.
MN
Prefix range
The prefix 507-394 includes numbers from 5073940000 to 5073949999.
This range is associated with the NOLTL ROCK rate center and was originally assigned to NORTHERN IOWA TEL. CO..
Numbers in this prefix
20 numbers