← Area code 720
720-643 phone numbers
Numbers 720-643-0000 to 720-643-9999 are assigned to Level 3 Communications, LLC in Denver, CO. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 720-643
- 1 (720) 643-0113 3complaints
- 2 (720) 643-1890 3complaints
- 3 (720) 643-2648 2complaints
- 4 (720) 643-2803 2complaints
- 5 (720) 643-5582 2complaints
- 6 (720) 643-0181 1complaints
- 7 (720) 643-1039 1complaints
- 8 (720) 643-1797 1complaints
- 9 (720) 643-1901 1complaints
- 10 (720) 643-1902 1complaints
- 11 (720) 643-1943 1complaints
- 12 (720) 643-2187 1complaints
- 13 (720) 643-2450 1complaints
- 14 (720) 643-2642 1complaints
- 15 (720) 643-2802 1complaints
- 16 (720) 643-4401 1complaints
- 17 (720) 643-4406 1complaints
- 18 (720) 643-4449 1complaints
- 19 (720) 643-4504 1complaints
- 20 (720) 643-4814 1complaints
- 21 (720) 643-5850 1complaints