Prefix overview
Phone numbers in prefix 346-378
This page covers the 346-378 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
346-378
RATE CENTER
HSTNSUBURB
CARRIER
TELEPORT COMMUNICATIONS AMERICA, LLC - TX
TX
Prefix range
The prefix 346-378 includes numbers from 3463780000 to 3463789999.
This range is associated with the HSTNSUBURB rate center and was originally assigned to TELEPORT COMMUNICATIONS AMERICA, LLC - TX.
Numbers in this prefix
20 numbers