Phone Prefix
(307) 640-XXXX
WY • CHEYENNE
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Carrier Information
NANPA
State
WY
Region
WE
Rate Center
CHEYENNE
Assigned To
NEW CINGULAR WIRELESS PCS, LLC
OCN
6010
Status
RT
Number Range
First Number
(307) 640-0000
Last Number
(307) 640-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
7 reports
7
Total FCC + FTC DNC complaints for numbers in this prefix
Top 5 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (307) 640-7890 3076407890 | 3 |
| 2 | (307) 640-1957 3076401957 | 1 |
| 3 | (307) 640-2421 3076402421 | 1 |
| 4 | (307) 640-3847 3076403847 | 1 |
| 5 | (307) 640-6661 3076406661 | 1 |
About This Prefix
Phone numbers starting with (307) 640 are part of the North American Numbering Plan (NANP). The first three digits (307) represent the Area Code (NPA), and the next three digits (640) represent the Central Office Code (NXX) or exchange.
- NPA (307) - Numbering Plan Area, identifies the geographic region
- NXX (640) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)