Prefix overview
Phone numbers in prefix 870-309
This page covers the 870-309 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
870-309
RATE CENTER
EL DORADO
CARRIER
SOUTHWESTERN BELL
AR
Prefix range
The prefix 870-309 includes numbers from 8703090000 to 8703099999.
This range is associated with the EL DORADO rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers