Prefix overview
Phone numbers in prefix 860-399
This page covers the 860-399 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
860-399
RATE CENTER
OLD SAYBRK
CARRIER
SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT
CT
Prefix range
The prefix 860-399 includes numbers from 8603990000 to 8603999999.
This range is associated with the OLD SAYBRK rate center and was originally assigned to SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT.
Numbers in this prefix
20 numbers