Prefix overview
Phone numbers in prefix 510-401
This page covers the 510-401 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
510-401
RATE CENTER
FRNK GRNLF
CARRIER
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS
CA
Prefix range
The prefix 510-401 includes numbers from 5104010000 to 5104019999.
This range is associated with the FRNK GRNLF rate center and was originally assigned to U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS.
Numbers in this prefix
20 numbers