Prefix overview
Phone numbers in prefix 878-301
This page covers the 878-301 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
878-301
RATE CENTER
SMOCK
CARRIER
ONVOY SPECTRUM, LLC
PA
Prefix range
The prefix 878-301 includes numbers from 8783010000 to 8783019999.
This range is associated with the SMOCK rate center and was originally assigned to ONVOY SPECTRUM, LLC.
Numbers in this prefix
20 numbers