Prefix overview
Phone numbers in prefix 661-309
This page covers the 661-309 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
661-309
RATE CENTER
SNCA SGCC
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
CA
Prefix range
The prefix 661-309 includes numbers from 6613090000 to 6613099999.
This range is associated with the SNCA SGCC rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA.
Numbers in this prefix
20 numbers