- City / exchange
- Denver
- Province / state
- Colorado
- Country
- United States
- Carrier
- Qwest Corporation
- Line type
- Landline or business line
- OCN
- 9636
- Status
- In Service
- Number pooling
- Yes (block shared between carriers)
303-643 phone numbers
Denver, Colorado, United States · Qwest Corporation
Reported numbers in 303-643
No numbers in this block have been reported by visitors yet.
What does the 303-643 prefix tell you?
Every North American number is area code + prefix + line. The prefix 303-643 was assigned to Qwest Corporation on an unknown date for the Denver exchange. A call from this block usually originates from a Qwest Corporation customer in or near Denver, but caller ID can be spoofed to show any number.
Other Denver prefixes in 303
303-200303-201303-202303-203303-204303-205303-206303-207303-208303-209303-210303-212303-213303-214303-215303-216303-217303-218303-219303-220303-221303-222303-223303-224303-225303-226303-227303-228303-229303-230303-231303-232303-233303-234303-235303-236303-237303-238303-239303-240303-241303-242303-243303-244303-245303-246303-247303-248303-249303-250303-251303-252303-253303-254303-255303-256303-257303-258303-259303-260