Prefix overview
Phone numbers in prefix 810-340
This page covers the 810-340 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
810-340
RATE CENTER
PORT HURON
CARRIER
AMERICAN MESSAGING SERVICES, LLC
MI
Prefix range
The prefix 810-340 includes numbers from 8103400000 to 8103409999.
This range is associated with the PORT HURON rate center and was originally assigned to AMERICAN MESSAGING SERVICES, LLC.
Numbers in this prefix
20 numbers