Phone Prefix
(303) 645-XXXX
CO • DENVER
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Carrier Information
NANPA
State
CO
Region
WE
Rate Center
DENVER
Assigned To
QWEST CORPORATION
OCN
9636
Status
RT
Number Range
First Number
(303) 645-0000
Last Number
(303) 645-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
12 reports
12
Total FCC + FTC DNC complaints for numbers in this prefix
Top 11 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (303) 645-8432 3036458432 | 2 |
| 2 | (303) 645-1698 3036451698 | 1 |
| 3 | (303) 645-2984 3036452984 | 1 |
| 4 | (303) 645-6029 3036456029 | 1 |
| 5 | (303) 645-6189 3036456189 | 1 |
| 6 | (303) 645-6861 3036456861 | 1 |
| 7 | (303) 645-7673 3036457673 | 1 |
| 8 | (303) 645-8251 3036458251 | 1 |
| 9 | (303) 645-8505 3036458505 | 1 |
| 10 | (303) 645-0480 3036450480 | 1 |
| 11 | (303) 645-8941 3036458941 | 1 |
About This Prefix
Phone numbers starting with (303) 645 are part of the North American Numbering Plan (NANP). The first three digits (303) represent the Area Code (NPA), and the next three digits (645) represent the Central Office Code (NXX) or exchange.
- NPA (303) - Numbering Plan Area, identifies the geographic region
- NXX (645) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)