← Area code 423
423-820 phone numbers
Numbers 423-820-0000 to 423-820-9999 are assigned to Onvoy, LLC (rate centre GREENEVL, TN, NANPA abbreviation). 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 423-820-5xxx, 423-820-6xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 423-820
- 1 (423) 820-0399 3complaints
- 2 (423) 820-0643 3complaints
- 3 (423) 820-0416 2complaints
- 4 (423) 820-0636 2complaints
- 5 (423) 820-4820 2complaints
- 6 (423) 820-0178 1complaints
- 7 (423) 820-0245 1complaints
- 8 (423) 820-0261 1complaints
- 9 (423) 820-0302 1complaints
- 10 (423) 820-0414 1complaints
- 11 (423) 820-0429 1complaints
- 12 (423) 820-0604 1complaints
- 13 (423) 820-0630 1complaints
- 14 (423) 820-0743 1complaints
- 15 (423) 820-0801 1complaints
- 16 (423) 820-0808 1complaints
- 17 (423) 820-0962 1complaints
- 18 (423) 820-1241 1complaints
- 19 (423) 820-1280 1complaints
- 20 (423) 820-1400 1complaints
- 21 (423) 820-1757 1complaints
- 22 (423) 820-1962 1complaints
- 23 (423) 820-2005 1complaints
- 24 (423) 820-2014 1complaints
- 25 (423) 820-2030 1complaints
- 26 (423) 820-2144 1complaints
- 27 (423) 820-2183 1complaints
- 28 (423) 820-2185 1complaints
- 29 (423) 820-2438 1complaints
- 30 (423) 820-2681 1complaints
- 31 (423) 820-2909 1complaints
- 32 (423) 820-2923 1complaints
- 33 (423) 820-2948 1complaints
- 34 (423) 820-3075 1complaints
- 35 (423) 820-3330 1complaints
- 36 (423) 820-3332 1complaints
- 37 (423) 820-3754 1complaints
- 38 (423) 820-3773 1complaints
- 39 (423) 820-3965 1complaints
- 40 (423) 820-5296 1complaints
- 41 (423) 820-5433 1complaints
- 42 (423) 820-8133 1complaints
- 43 (423) 820-8160 1complaints
- 44 (423) 820-8220 1complaints
- 45 (423) 820-8407 1complaints
- 46 (423) 820-8639 1complaints