Phone Prefix
(510) 550-XXXX
CA • OKLD MN-PD
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
OKLD MN-PD
Assigned To
GLOBAL CROSSING LOCAL SERVICES, INC. - CA
OCN
8690
Status
AS
Date Assigned
Jul 23, 2002
Number Range
First Number
(510) 550-0000
Last Number
(510) 550-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
9 reports
9
Total FCC + FTC DNC complaints for numbers in this prefix
Top 9 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 550-0012 5105500012 | 1 |
| 2 | (510) 550-0057 5105500057 | 1 |
| 3 | (510) 550-0080 5105500080 | 1 |
| 4 | (510) 550-0099 5105500099 | 1 |
| 5 | (510) 550-2432 5105502432 | 1 |
| 6 | (510) 550-5810 5105505810 | 1 |
| 7 | (510) 550-6432 5105506432 | 1 |
| 8 | (510) 550-8648 5105508648 | 1 |
| 9 | (510) 550-9697 5105509697 | 1 |
About This Prefix
Phone numbers starting with (510) 550 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (550) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (550) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)