Prefix overview
Phone numbers in prefix 870-437
This page covers the 870-437 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
870-437
RATE CENTER
ALPENA
CARRIER
TRI-COUNTY TEL. CO., INC.
AR
Prefix range
The prefix 870-437 includes numbers from 8704370000 to 8704379999.
This range is associated with the ALPENA rate center and was originally assigned to TRI-COUNTY TEL. CO., INC..
Numbers in this prefix
20 numbers