Phone Prefix
(303) 999-XXXX
CO • DENVER
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Carrier Information
NANPA
State
CO
Region
WE
Rate Center
DENVER
Assigned To
COMCAST IP PHONE, LLC
OCN
318J
Status
AS
Date Assigned
Aug 29, 2007
Number Range
First Number
(303) 999-0000
Last Number
(303) 999-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
15 reports
15
Total FCC + FTC DNC complaints for numbers in this prefix
Top 15 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (303) 999-0496 3039990496 | 1 |
| 2 | (303) 999-0862 3039990862 | 1 |
| 3 | (303) 999-1256 3039991256 | 1 |
| 4 | (303) 999-2109 3039992109 | 1 |
| 5 | (303) 999-2162 3039992162 | 1 |
| 6 | (303) 999-3332 3039993332 | 1 |
| 7 | (303) 999-3481 3039993481 | 1 |
| 8 | (303) 999-3779 3039993779 | 1 |
| 9 | (303) 999-3802 3039993802 | 1 |
| 10 | (303) 999-3860 3039993860 | 1 |
| 11 | (303) 999-4138 3039994138 | 1 |
| 12 | (303) 999-4646 3039994646 | 1 |
| 13 | (303) 999-4669 3039994669 | 1 |
| 14 | (303) 999-4914 3039994914 | 1 |
| 15 | (303) 999-6861 3039996861 | 1 |
About This Prefix
Phone numbers starting with (303) 999 are part of the North American Numbering Plan (NANP). The first three digits (303) represent the Area Code (NPA), and the next three digits (999) represent the Central Office Code (NXX) or exchange.
- NPA (303) - Numbering Plan Area, identifies the geographic region
- NXX (999) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)