Phone Prefix
(720) 644-XXXX
CO • DENVER
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Carrier Information
NANPA
State
CO
Region
WE
Rate Center
DENVER
Assigned To
BANDWIDTH.COM CLEC, LLC - CO
OCN
078F
Status
AS
Date Assigned
Apr 19, 2011
Number Range
First Number
(720) 644-0000
Last Number
(720) 644-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
54 reports
54
Total FCC + FTC DNC complaints for numbers in this prefix
Top 24 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (720) 644-4455 7206444455 | 17 |
| 2 | (720) 644-4457 7206444457 | 5 |
| 3 | (720) 644-4468 7206444468 | 3 |
| 4 | (720) 644-2263 7206442263 | 3 |
| 5 | (720) 644-4456 7206444456 | 3 |
| 6 | (720) 644-0780 7206440780 | 2 |
| 7 | (720) 644-8971 7206448971 | 2 |
| 8 | (720) 644-4470 7206444470 | 2 |
| 9 | (720) 644-6909 7206446909 | 1 |
| 10 | (720) 644-6949 7206446949 | 1 |
| 11 | (720) 644-6986 7206446986 | 1 |
| 12 | (720) 644-7140 7206447140 | 1 |
| 13 | (720) 644-8350 7206448350 | 1 |
| 14 | (720) 644-8461 7206448461 | 1 |
| 15 | (720) 644-8997 7206448997 | 1 |
| 16 | (720) 644-9185 7206449185 | 1 |
| 17 | (720) 644-9478 7206449478 | 1 |
| 18 | (720) 644-0883 7206440883 | 1 |
| 19 | (720) 644-3217 7206443217 | 1 |
| 20 | (720) 644-4458 7206444458 | 1 |
| 21 | (720) 644-4853 7206444853 | 1 |
| 22 | (720) 644-5561 7206445561 | 1 |
| 23 | (720) 644-5841 7206445841 | 1 |
| 24 | (720) 644-6639 7206446639 | 1 |
About This Prefix
Phone numbers starting with (720) 644 are part of the North American Numbering Plan (NANP). The first three digits (720) represent the Area Code (NPA), and the next three digits (644) represent the Central Office Code (NXX) or exchange.
- NPA (720) - Numbering Plan Area, identifies the geographic region
- NXX (644) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)