Prefix overview
Phone numbers in prefix 617-380
This page covers the 617-380 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
617-380
RATE CENTER
CHARLESTN
CARRIER
LEVEL 3 COMMUNICATIONS, LLC - MA
MA
Prefix range
The prefix 617-380 includes numbers from 6173800000 to 6173809999.
This range is associated with the CHARLESTN rate center and was originally assigned to LEVEL 3 COMMUNICATIONS, LLC - MA.
Numbers in this prefix
20 numbers