Phone Prefix
(650) 521-XXXX
CA • PALO ALTO
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
PALO ALTO
Assigned To
COMCAST IP PHONE, LLC
OCN
318J
Status
AS
Date Assigned
Aug 04, 2005
Number Range
First Number
(650) 521-0000
Last Number
(650) 521-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
8 reports
8
Total FCC + FTC DNC complaints for numbers in this prefix
Top 8 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (650) 521-0000 6505210000 | 1 |
| 2 | (650) 521-0033 6505210033 | 1 |
| 3 | (650) 521-0239 6505210239 | 1 |
| 4 | (650) 521-0378 6505210378 | 1 |
| 5 | (650) 521-0585 6505210585 | 1 |
| 6 | (650) 521-2678 6505212678 | 1 |
| 7 | (650) 521-5082 6505215082 | 1 |
| 8 | (650) 521-8645 6505218645 | 1 |
About This Prefix
Phone numbers starting with (650) 521 are part of the North American Numbering Plan (NANP). The first three digits (650) represent the Area Code (NPA), and the next three digits (521) represent the Central Office Code (NXX) or exchange.
- NPA (650) - Numbering Plan Area, identifies the geographic region
- NXX (521) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)