Phone Prefix
(303) 406-XXXX
CO • DENVER
Search Number in This Prefix
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Carrier Information
NANPA
State
CO
Region
WE
Rate Center
DENVER
Assigned To
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
OCN
6567
Status
AS
Date Assigned
Apr 19, 2022
Number Range
First Number
(303) 406-0000
Last Number
(303) 406-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
26 reports
26
Total FCC + FTC DNC complaints for numbers in this prefix
Top 20 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (303) 406-4058 3034064058 | 3 |
| 2 | (303) 406-2748 3034062748 | 3 |
| 3 | (303) 406-6591 3034066591 | 2 |
| 4 | (303) 406-9478 3034069478 | 2 |
| 5 | (303) 406-2758 3034062758 | 1 |
| 6 | (303) 406-4573 3034064573 | 1 |
| 7 | (303) 406-4778 3034064778 | 1 |
| 8 | (303) 406-5268 3034065268 | 1 |
| 9 | (303) 406-1649 3034061649 | 1 |
| 10 | (303) 406-5944 3034065944 | 1 |
| 11 | (303) 406-6802 3034066802 | 1 |
| 12 | (303) 406-6811 3034066811 | 1 |
| 13 | (303) 406-7402 3034067402 | 1 |
| 14 | (303) 406-7654 3034067654 | 1 |
| 15 | (303) 406-9280 3034069280 | 1 |
| 16 | (303) 406-9428 3034069428 | 1 |
| 17 | (303) 406-5723 3034065723 | 1 |
| 18 | (303) 406-1987 3034061987 | 1 |
| 19 | (303) 406-2675 3034062675 | 1 |
| 20 | (303) 406-2719 3034062719 | 1 |
About This Prefix
Phone numbers starting with (303) 406 are part of the North American Numbering Plan (NANP). The first three digits (303) represent the Area Code (NPA), and the next three digits (406) represent the Central Office Code (NXX) or exchange.
- NPA (303) - Numbering Plan Area, identifies the geographic region
- NXX (406) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)