Prefix overview
Phone numbers in prefix 310-240
This page covers the 310-240 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
310-240
RATE CENTER
CMTN GRDN
CARRIER
SPOK, INC.
CA
Prefix range
The prefix 310-240 includes numbers from 3102400000 to 3102409999.
This range is associated with the CMTN GRDN rate center and was originally assigned to SPOK, INC..
Numbers in this prefix
20 numbers