Prefix overview
Phone numbers in prefix 650-221
This page covers the 650-221 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
650-221
RATE CENTER
SSNFRNCSCO
CARRIER
SHELCOMM
CA
Prefix range
The prefix 650-221 includes numbers from 6502210000 to 6502219999.
This range is associated with the SSNFRNCSCO rate center and was originally assigned to SHELCOMM.
Numbers in this prefix
20 numbers