Phone numbers in Knoxville, Tennessee
Knoxville has 276 phone prefixes in area code 865.
Biggest holders: AT&T (local phone), AT&T Mobility, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 25%
- Internet / business phone carrier 19%
- Paging service 3%
- Phone company 3%
Every prefix in Knoxville
Search the first six digits of a number in this list. If it's here, the number started in Knoxville with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 865-200 | MetroPCS (T-Mobile) | Mobile carrier | 2011 |
| 865-201 | AT&T Mobility | Mobile carrier | 2006 |
| 865-202 | AT&T Mobility | Mobile carrier | 2006 |
| 865-203 | Verizon Wireless | Mobile carrier | 2013 |
| 865-206 | AT&T Mobility | Mobile carrier | 2006 |
| 865-207 | Verizon Wireless | Mobile carrier | – |
| 865-208 | T-Mobile (including Sprint) | Mobile carrier | 2010 |
| 865-209 | AT&T Mobility | Mobile carrier | 2006 |
| 865-210 | Verizon Wireless | Mobile carrier | 2012 |
| 865-212 | AT&T (local phone) | Local phone company | – |
| 865-214 | AT&T Mobility | Mobile carrier | 2012 |
| 865-215 | AT&T (local phone) | Local phone company | – |
| 865-216 | UScellular | Mobile carrier | – |
| 865-219 | AT&T (local phone) | Local phone company | – |
| 865-221 | Verizon Wireless | Mobile carrier | 2011 |
| 865-222 | Satellink Paging | Paging service | – |
| 865-223 | AT&T Mobility | Mobile carrier | 2006 |
| 865-226 | AT&T (local phone) | Local phone company | – |
| 865-227 | Verizon Wireless | Mobile carrier | 2011 |
| 865-228 | Verizon Wireless | Mobile carrier | – |
| 865-230 | AT&T Mobility | Mobile carrier | 2008 |
| 865-231 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-232 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-235 | AT&T Mobility | Mobile carrier | 2002 |
| 865-236 | Bandwidth | Internet / business phone carrier | 2008 |
| 865-237 | AT&T Mobility | Mobile carrier | – |
| 865-240 | T-Mobile (including Sprint) | Mobile carrier | 2012 |
| 865-242 | AT&T Mobility | Mobile carrier | 2006 |
| 865-243 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-244 | T-Mobile (including Sprint) | Mobile carrier | 2007 |
| 865-246 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-247 | Onvoy | Internet / business phone carrier | – |
| 865-249 | Onvoy | Internet / business phone carrier | 2007 |
| 865-250 | Verizon Wireless | Mobile carrier | – |
| 865-251 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-252 | Onvoy | Internet / business phone carrier | 2023 |
| 865-253 | AT&T Enterprises | Phone company | 2009 |
| 865-254 | UScellular | Mobile carrier | – |
| 865-255 | UScellular | Mobile carrier | – |
| 865-256 | UScellular | Mobile carrier | – |
| 865-257 | UScellular | Mobile carrier | – |
| 865-258 | UScellular | Mobile carrier | – |
| 865-265 | Onvoy | Internet / business phone carrier | 2024 |
| 865-266 | Verizon Wireless | Mobile carrier | 2009 |
| 865-274 | AT&T Mobility | Mobile carrier | – |
| 865-281 | AT&T (local phone) | Local phone company | – |
| 865-282 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 865-283 | T-Mobile (including Sprint) | Mobile carrier | 2009 |
| 865-284 | Vonage America | Internet / business phone carrier | 2024 |
| 865-287 | T-Mobile (including Sprint) | Mobile carrier | 2009 |
| 865-289 | Spok | Paging service | – |
| 865-291 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 865-292 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 865-293 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 865-296 | Verizon Wireless | Mobile carrier | 2010 |
| 865-297 | AT&T (local phone) | Local phone company | – |
| 865-299 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-300 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-301 | Spok | Paging service | – |
| 865-304 | Verizon Wireless | Mobile carrier | 2009 |
| 865-305 | AT&T (local phone) | Local phone company | 2007 |
| 865-306 | Verizon Wireless | Mobile carrier | 2010 |
| 865-307 | T-Mobile (including Sprint) | Mobile carrier | 2007 |
| 865-308 | AT&T Mobility | Mobile carrier | 2008 |
| 865-309 | Verizon Wireless | Mobile carrier | 2010 |
| 865-310 | Verizon Wireless | Mobile carrier | – |
| 865-312 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 865-313 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-314 | Verizon Wireless | Mobile carrier | 2009 |
| 865-315 | T-Mobile (including Sprint) | Mobile carrier | 2012 |
| 865-318 | Verizon Wireless | Mobile carrier | 2008 |
| 865-319 | Bandwidth | Internet / business phone carrier | 2026 |
| 865-320 | Nuso | Internet / business phone carrier | 2013 |
| 865-321 | T-Mobile (including Sprint) | Mobile carrier | 2010 |
| 865-323 | AT&T Mobility | Mobile carrier | 2006 |
| 865-329 | AT&T (local phone) | Local phone company | – |
| 865-330 | AT&T (local phone) | Local phone company | – |
| 865-331 | AT&T (local phone) | Local phone company | 2013 |
| 865-332 | Onvoy | Internet / business phone carrier | 2008 |
| 865-333 | CenturyLink / Lumen | Local phone company | 2014 |
| 865-334 | Twin Lakes Communications | Phone company | 2018 |
| 865-335 | AT&T Mobility | Mobile carrier | 2002 |
| 865-337 | Verizon Wireless | Mobile carrier | 2014 |
| 865-338 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 865-340 | Verizon Wireless | Mobile carrier | 2015 |
| 865-342 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-343 | Vonage America | Internet / business phone carrier | 2017 |
| 865-347 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 865-348 | AT&T Mobility | Mobile carrier | 2018 |
| 865-356 | Verizon Wireless | Mobile carrier | – |
| 865-357 | Wow! Internet, Cable And Phone | Phone company | – |
| 865-358 | AT&T Mobility | Mobile carrier | 2024 |
| 865-360 | AT&T Mobility | Mobile carrier | 2008 |
| 865-361 | Verizon Wireless | Mobile carrier | 2014 |
| 865-363 | UScellular | Mobile carrier | – |
| 865-364 | Voip Innovations | Internet / business phone carrier | 2019 |
| 865-367 | Exiant Communications | Phone company | 2019 |
| 865-368 | AT&T Mobility | Mobile carrier | – |
| 865-369 | Csc Wireless | Mobile carrier | 2020 |
| 865-370 | Hd Carrier | Internet / business phone carrier | 2020 |
| 865-371 | Nuso | Internet / business phone carrier | 2020 |
| 865-373 | AT&T (local phone) | Local phone company | – |
| 865-374 | AT&T (local phone) | Local phone company | – |
| 865-378 | IP Horizon | Internet / business phone carrier | 2020 |
| 865-381 | Onvoy | Internet / business phone carrier | – |
| 865-382 | AT&T Mobility | Mobile carrier | – |
| 865-384 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-385 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 865-386 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-387 | AT&T Mobility | Mobile carrier | 2001 |
| 865-388 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-389 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 865-393 | Windstream (PAETEC) | Internet / business phone carrier | 2021 |
| 865-394 | UScellular | Mobile carrier | 2001 |
| 865-396 | AT&T Mobility | Mobile carrier | 2021 |
| 865-398 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-403 | AT&T (local phone) | Local phone company | – |
| 865-404 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 865-405 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-406 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-407 | Level 3 (Lumen) | Internet / business phone carrier | 2013 |
| 865-409 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 865-410 | Verizon Wireless | Mobile carrier | 2015 |
| 865-414 | Verizon Wireless | Mobile carrier | – |
| 865-415 | MetroPCS (T-Mobile) | Mobile carrier | 2015 |
| 865-416 | AT&T Mobility | Mobile carrier | 2021 |
| 865-418 | Skyetel | Internet / business phone carrier | 2021 |
| 865-422 | AT&T Mobility | Mobile carrier | 2021 |
| 865-427 | Boost / Virgin Mobile | Mobile carrier | 2021 |
| 865-433 | Nuso | Internet / business phone carrier | 2022 |
| 865-437 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-438 | AT&T Mobility | Mobile carrier | 2007 |
| 865-440 | Verizon Wireless | Mobile carrier | 2015 |
| 865-441 | T-Mobile (including Sprint) | Mobile carrier | 2007 |
| 865-443 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 865-444 | Peerless Network Of Tennessee | Internet / business phone carrier | 2015 |
| 865-449 | Windstream (PAETEC) | Internet / business phone carrier | 2022 |
| 865-450 | AT&T (local phone) | Local phone company | – |
| 865-454 | AT&T Mobility | Mobile carrier | – |
| 865-455 | AT&T Mobility | Mobile carrier | – |
| 865-456 | AT&T Mobility | Mobile carrier | 2006 |
| 865-469 | Verizon Wireless | Mobile carrier | 2015 |
| 865-470 | AT&T (local phone) | Local phone company | – |
| 865-474 | AT&T (local phone) | Local phone company | – |
| 865-485 | Voip Innovations | Internet / business phone carrier | 2026 |
| 865-486 | Wavenation | Phone company | 2025 |
| 865-489 | Teleport Communications America | Internet / business phone carrier | 2024 |
| 865-500 | Onvoy | Internet / business phone carrier | 2015 |
| 865-504 | Spok | Paging service | – |
| 865-507 | Verizon Wireless | Mobile carrier | 2016 |
| 865-521 | AT&T (local phone) | Local phone company | – |
| 865-522 | AT&T (local phone) | Local phone company | – |
| 865-523 | AT&T (local phone) | Local phone company | – |
| 865-524 | AT&T (local phone) | Local phone company | – |
| 865-525 | AT&T (local phone) | Local phone company | – |
| 865-531 | AT&T (local phone) | Local phone company | – |
| 865-539 | AT&T (local phone) | Local phone company | – |
| 865-540 | AT&T (local phone) | Local phone company | – |
| 865-541 | AT&T (local phone) | Local phone company | – |
| 865-544 | AT&T (local phone) | Local phone company | – |
| 865-545 | AT&T (local phone) | Local phone company | – |
| 865-546 | AT&T (local phone) | Local phone company | – |
| 865-548 | AT&T Mobility | Mobile carrier | – |
| 865-549 | AT&T (local phone) | Local phone company | – |
| 865-556 | UScellular | Mobile carrier | – |
| 865-558 | AT&T (local phone) | Local phone company | – |
| 865-560 | AT&T (local phone) | Local phone company | – |
| 865-562 | TON80 Communications | Internet / business phone carrier | 2022 |
| 865-564 | AT&T (local phone) | Local phone company | – |
| 865-566 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 865-567 | Verizon Wireless | Mobile carrier | – |
| 865-573 | AT&T (local phone) | Local phone company | – |
| 865-577 | AT&T (local phone) | Local phone company | – |
| 865-579 | AT&T (local phone) | Local phone company | – |
| 865-582 | AT&T (local phone) | Local phone company | – |
| 865-583 | AT&T (local phone) | Local phone company | – |
| 865-584 | AT&T (local phone) | Local phone company | – |
| 865-587 | Opentact | Phone company | 2026 |
| 865-588 | AT&T (local phone) | Local phone company | – |
| 865-591 | AT&T Mobility | Mobile carrier | – |
| 865-594 | AT&T (local phone) | Local phone company | – |
| 865-595 | AT&T (local phone) | Local phone company | – |
| 865-597 | Spok | Paging service | – |
| 865-599 | Verizon Wireless | Mobile carrier | – |
| 865-602 | AT&T (local phone) | Local phone company | – |
| 865-603 | Verizon Wireless | Mobile carrier | – |
| 865-604 | AT&T Mobility | Mobile carrier | – |
| 865-606 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 865-607 | AT&T Mobility | Mobile carrier | – |
| 865-609 | AT&T (local phone) | Local phone company | – |
| 865-617 | Verizon Wireless | Mobile carrier | – |
| 865-621 | AT&T Mobility | Mobile carrier | – |
| 865-622 | AT&T Mobility | Mobile carrier | 2006 |
| 865-631 | AT&T (local phone) | Local phone company | – |
| 865-632 | AT&T (local phone) | Local phone company | – |
| 865-633 | AT&T (local phone) | Local phone company | – |
| 865-637 | AT&T (local phone) | Local phone company | – |
| 865-640 | UScellular | Mobile carrier | – |
| 865-643 | UScellular | Mobile carrier | – |
| 865-647 | AT&T (local phone) | Local phone company | 2008 |
| 865-654 | UScellular | Mobile carrier | – |
| 865-656 | AT&T (local phone) | Local phone company | – |
| 865-659 | UScellular | Mobile carrier | – |
| 865-660 | UScellular | Mobile carrier | – |
| 865-661 | UScellular | Mobile carrier | – |
| 865-666 | Onvoy | Internet / business phone carrier | 2017 |
| 865-670 | AT&T (local phone) | Local phone company | – |
| 865-673 | AT&T (local phone) | Local phone company | – |
| 865-679 | UScellular | Mobile carrier | – |
| 865-680 | UScellular | Mobile carrier | – |
| 865-684 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 865-686 | AT&T (local phone) | Local phone company | – |
| 865-687 | AT&T (local phone) | Local phone company | – |
| 865-688 | AT&T (local phone) | Local phone company | – |
| 865-689 | AT&T (local phone) | Local phone company | – |
| 865-690 | AT&T (local phone) | Local phone company | – |
| 865-691 | AT&T (local phone) | Local phone company | – |
| 865-692 | AT&T (local phone) | Local phone company | – |
| 865-693 | AT&T (local phone) | Local phone company | – |
| 865-694 | AT&T (local phone) | Local phone company | – |
| 865-696 | Verizon Wireless | Mobile carrier | – |
| 865-701 | Spok | Paging service | – |
| 865-705 | UScellular | Mobile carrier | – |
| 865-712 | Verizon Wireless | Mobile carrier | – |
| 865-719 | Verizon Wireless | Mobile carrier | – |
| 865-722 | Verizon Wireless | Mobile carrier | 2017 |
| 865-740 | T-Mobile (including Sprint) | Mobile carrier | – |
| 865-742 | AT&T Mobility | Mobile carrier | – |
| 865-748 | AT&T Mobility | Mobile carrier | – |
| 865-749 | Spok | Paging service | – |
| 865-755 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 865-765 | AT&T Mobility | Mobile carrier | 2001 |
| 865-766 | AT&T (local phone) | Local phone company | – |
| 865-769 | AT&T (local phone) | Local phone company | – |
| 865-770 | Verizon Wireless | Mobile carrier | 2016 |
| 865-771 | Verizon Wireless | Mobile carrier | – |
| 865-773 | AT&T (local phone) | Local phone company | – |
| 865-776 | Verizon Wireless | Mobile carrier | – |
| 865-789 | AT&T Mobility | Mobile carrier | – |
| 865-801 | Wow! Internet, Cable And Phone | Phone company | 2013 |
| 865-803 | Verizon Wireless | Mobile carrier | – |
| 865-804 | Verizon Wireless | Mobile carrier | – |
| 865-805 | Verizon Wireless | Mobile carrier | – |
| 865-806 | Verizon Wireless | Mobile carrier | – |
| 865-809 | Verizon Wireless | Mobile carrier | – |
| 865-818 | Spok | Paging service | – |
| 865-824 | Teleport Communications America | Internet / business phone carrier | – |
| 865-839 | Verizon Wireless | Mobile carrier | 2017 |
| 865-850 | Verizon Wireless | Mobile carrier | – |
| 865-851 | AT&T Mobility | Mobile carrier | 2006 |
| 865-862 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-867 | Commio | Internet / business phone carrier | 2017 |
| 865-888 | Onvoy | Internet / business phone carrier | 2015 |
| 865-895 | Twilio | Internet / business phone carrier | 2020 |
| 865-898 | AT&T Mobility | Mobile carrier | – |
| 865-900 | Terra Nova Telecom | Internet / business phone carrier | 2019 |
| 865-902 | Onvoy | Internet / business phone carrier | 2021 |
| 865-909 | AT&T (local phone) | Local phone company | – |
| 865-910 | Onvoy | Internet / business phone carrier | 2021 |
| 865-918 | Pro Page Partners | Phone company | – |
| 865-919 | AT&T Mobility | Mobile carrier | – |
| 865-924 | AT&T Mobility | Mobile carrier | – |
| 865-934 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-936 | AT&T Mobility | Mobile carrier | – |
| 865-946 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-951 | Comcast | Internet / business phone carrier | 2006 |
| 865-963 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 865-964 | AT&T Mobility | Mobile carrier | 2006 |
| 865-970 | AT&T (local phone) | Local phone company | – |
| 865-971 | AT&T (local phone) | Local phone company | – |
| 865-973 | AT&T Mobility | Mobile carrier | – |
| 865-974 | AT&T (local phone) | Local phone company | – |
| 865-978 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 865-985 | AT&T (local phone) | Local phone company | – |
| 865-996 | Spok | Paging service | – |
| 865-999 | Onvoy | Internet / business phone carrier | 2015 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.