Prefix overview
Phone numbers in prefix 671-400
This page covers the 671-400 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
671-400
RATE CENTER
AGANA
CARRIER
PACIFIC DATA SYSTEMS - GU
GU
Prefix range
The prefix 671-400 includes numbers from 6714000000 to 6714009999.
This range is associated with the AGANA rate center and was originally assigned to PACIFIC DATA SYSTEMS - GU.
Numbers in this prefix
20 numbers