Prefix overview
Phone numbers in prefix 413-421
This page covers the 413-421 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
413-421
RATE CENTER
HOLYOKE
CARRIER
NUSO, LLC
MA
Prefix range
The prefix 413-421 includes numbers from 4134210000 to 4134219999.
This range is associated with the HOLYOKE rate center and was originally assigned to NUSO, LLC.
Numbers in this prefix
20 numbers