Phone Prefix
(303) 728-XXXX
CO • DENVER
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Carrier Information
NANPA
State
CO
Region
WE
Rate Center
DENVER
Assigned To
TELEPORT COMMUNICATIONS AMERICA, LLC - CO
OCN
7378
Status
RT
Number Range
First Number
(303) 728-0000
Last Number
(303) 728-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
28 reports
28
Total FCC + FTC DNC complaints for numbers in this prefix
Top 19 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (303) 728-4832 3037284832 | 4 |
| 2 | (303) 728-7648 3037287648 | 3 |
| 3 | (303) 728-9995 3037289995 | 3 |
| 4 | (303) 728-6953 3037286953 | 2 |
| 5 | (303) 728-7800 3037287800 | 2 |
| 6 | (303) 728-5413 3037285413 | 1 |
| 7 | (303) 728-6042 3037286042 | 1 |
| 8 | (303) 728-0000 3037280000 | 1 |
| 9 | (303) 728-7361 3037287361 | 1 |
| 10 | (303) 728-8005 3037288005 | 1 |
| 11 | (303) 728-8461 3037288461 | 1 |
| 12 | (303) 728-9193 3037289193 | 1 |
| 13 | (303) 728-9207 3037289207 | 1 |
| 14 | (303) 728-9669 3037289669 | 1 |
| 15 | (303) 728-7089 3037287089 | 1 |
| 16 | (303) 728-0870 3037280870 | 1 |
| 17 | (303) 728-1304 3037281304 | 1 |
| 18 | (303) 728-2914 3037282914 | 1 |
| 19 | (303) 728-3491 3037283491 | 1 |
About This Prefix
Phone numbers starting with (303) 728 are part of the North American Numbering Plan (NANP). The first three digits (303) represent the Area Code (NPA), and the next three digits (728) represent the Central Office Code (NXX) or exchange.
- NPA (303) - Numbering Plan Area, identifies the geographic region
- NXX (728) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)