Prefix overview
Phone numbers in prefix 860-404
This page covers the 860-404 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
860-404
RATE CENTER
FARMINGTON
CARRIER
SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT
CT
Prefix range
The prefix 860-404 includes numbers from 8604040000 to 8604049999.
This range is associated with the FARMINGTON rate center and was originally assigned to SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT.
Numbers in this prefix
20 numbers