Prefix overview
Phone numbers in prefix 838-666
This page covers the 838-666 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
838-666
RATE CENTER
ESPERANCE
CARRIER
ONVOY, LLC- NY
NY
Prefix range
The prefix 838-666 includes numbers from 8386660000 to 8386669999.
This range is associated with the ESPERANCE rate center and was originally assigned to ONVOY, LLC- NY.
Numbers in this prefix
20 numbers