Phone Prefix
(720) 257-XXXX
CO • DENVER
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Carrier Information
NANPA
State
CO
Region
WE
Rate Center
DENVER
Assigned To
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Status
RT
Number Range
First Number
(720) 257-0000
Last Number
(720) 257-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
14 reports
14
Total FCC + FTC DNC complaints for numbers in this prefix
Top 11 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (720) 257-0747 7202570747 | 3 |
| 2 | (720) 257-0528 7202570528 | 2 |
| 3 | (720) 257-5239 7202575239 | 1 |
| 4 | (720) 257-5359 7202575359 | 1 |
| 5 | (720) 257-5736 7202575736 | 1 |
| 6 | (720) 257-7346 7202577346 | 1 |
| 7 | (720) 257-8307 7202578307 | 1 |
| 8 | (720) 257-8481 7202578481 | 1 |
| 9 | (720) 257-9517 7202579517 | 1 |
| 10 | (720) 257-9958 7202579958 | 1 |
| 11 | (720) 257-1471 7202571471 | 1 |
About This Prefix
Phone numbers starting with (720) 257 are part of the North American Numbering Plan (NANP). The first three digits (720) represent the Area Code (NPA), and the next three digits (257) represent the Central Office Code (NXX) or exchange.
- NPA (720) - Numbering Plan Area, identifies the geographic region
- NXX (257) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)