Phone Prefix
(510) 423-XXXX
CA • OKLD BKLY
Search Number in This Prefix
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
OKLD BKLY
Assigned To
LEVEL 3 COMMUNICATIONS, LLC - CA
OCN
8826
Status
AS
Date Assigned
Jul 29, 2009
Number Range
First Number
(510) 423-0000
Last Number
(510) 423-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
31 reports
31
Total FCC + FTC DNC complaints for numbers in this prefix
Top 23 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 423-3721 5104233721 | 4 |
| 2 | (510) 423-9894 5104239894 | 4 |
| 3 | (510) 423-6235 5104236235 | 3 |
| 4 | (510) 423-3033 5104233033 | 1 |
| 5 | (510) 423-3486 5104233486 | 1 |
| 6 | (510) 423-3593 5104233593 | 1 |
| 7 | (510) 423-3918 5104233918 | 1 |
| 8 | (510) 423-4357 5104234357 | 1 |
| 9 | (510) 423-4414 5104234414 | 1 |
| 10 | (510) 423-4596 5104234596 | 1 |
| 11 | (510) 423-0290 5104230290 | 1 |
| 12 | (510) 423-4709 5104234709 | 1 |
| 13 | (510) 423-4716 5104234716 | 1 |
| 14 | (510) 423-4959 5104234959 | 1 |
| 15 | (510) 423-4961 5104234961 | 1 |
| 16 | (510) 423-5291 5104235291 | 1 |
| 17 | (510) 423-5787 5104235787 | 1 |
| 18 | (510) 423-5935 5104235935 | 1 |
| 19 | (510) 423-5996 5104235996 | 1 |
| 20 | (510) 423-6162 5104236162 | 1 |
| 21 | (510) 423-4675 5104234675 | 1 |
| 22 | (510) 423-2860 5104232860 | 1 |
| 23 | (510) 423-2954 5104232954 | 1 |
About This Prefix
Phone numbers starting with (510) 423 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (423) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (423) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)