Phone numbers in Spartanburg, South Carolina
Spartanburg has 91 phone prefixes in area codes 821, 864.
Biggest holders: AT&T (local phone), Verizon Wireless, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 40%
- Local phone company 33%
- Internet / business phone carrier 22%
- Paging service 3%
- Phone company 2%
Every prefix in Spartanburg
Search the first six digits of a number in this list. If it's here, the number started in Spartanburg with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 821-202 | AT&T Mobility | Mobile carrier | 2024 |
| 821-216 | AT&T Mobility | Mobile carrier | 2025 |
| 821-333 | Onvoy | Internet / business phone carrier | 2025 |
| 864-205 | T-Mobile (including Sprint) | Mobile carrier | – |
| 864-208 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-212 | Spok | Paging service | – |
| 864-216 | AT&T (local phone) | Local phone company | – |
| 864-218 | Spok | Paging service | – |
| 864-237 | Verizon Wireless | Mobile carrier | – |
| 864-253 | AT&T (local phone) | Local phone company | – |
| 864-256 | Level 3 (Lumen) | Internet / business phone carrier | 2010 |
| 864-266 | T-Mobile (including Sprint) | Mobile carrier | – |
| 864-273 | Total Communication Systems | Phone company | – |
| 864-274 | Teleport Communications America Sc | Internet / business phone carrier | 2018 |
| 864-278 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 864-279 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 864-285 | Charter / Spectrum | Internet / business phone carrier | 2004 |
| 864-308 | T-Mobile (including Sprint) | Mobile carrier | 2012 |
| 864-310 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-316 | Verizon Wireless | Mobile carrier | – |
| 864-327 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-342 | AT&T (local phone) | Local phone company | – |
| 864-345 | T-Mobile (including Sprint) | Mobile carrier | 2008 |
| 864-347 | T-Mobile (including Sprint) | Mobile carrier | 2010 |
| 864-357 | T-Mobile (including Sprint) | Mobile carrier | – |
| 864-381 | Teleport Communications America Sc | Internet / business phone carrier | 2008 |
| 864-384 | AT&T Mobility | Mobile carrier | 2001 |
| 864-398 | Verizon Wireless | Mobile carrier | 2008 |
| 864-410 | Bandwidth | Internet / business phone carrier | 2023 |
| 864-415 | Verizon Wireless | Mobile carrier | – |
| 864-431 | AT&T Mobility | Mobile carrier | – |
| 864-435 | T-Mobile (including Sprint) | Mobile carrier | 2009 |
| 864-494 | AT&T Mobility | Mobile carrier | – |
| 864-497 | AT&T Mobility | Mobile carrier | 2001 |
| 864-503 | AT&T (local phone) | Local phone company | – |
| 864-504 | Verizon Wireless | Mobile carrier | 2008 |
| 864-515 | AT&T (local phone) | Local phone company | – |
| 864-524 | Verizon Wireless | Mobile carrier | 2022 |
| 864-529 | AT&T (local phone) | Local phone company | – |
| 864-541 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-542 | AT&T (local phone) | Local phone company | – |
| 864-560 | AT&T (local phone) | Local phone company | – |
| 864-562 | AT&T (local phone) | Local phone company | – |
| 864-564 | Onvoy | Internet / business phone carrier | 2018 |
| 864-572 | Verizon Wireless | Mobile carrier | 2020 |
| 864-573 | AT&T (local phone) | Local phone company | – |
| 864-574 | AT&T (local phone) | Local phone company | – |
| 864-576 | AT&T (local phone) | Local phone company | – |
| 864-577 | AT&T (local phone) | Local phone company | – |
| 864-578 | AT&T (local phone) | Local phone company | – |
| 864-579 | AT&T (local phone) | Local phone company | – |
| 864-580 | AT&T (local phone) | Local phone company | – |
| 864-582 | AT&T (local phone) | Local phone company | – |
| 864-583 | AT&T (local phone) | Local phone company | – |
| 864-585 | AT&T (local phone) | Local phone company | – |
| 864-586 | Charter / Spectrum | Internet / business phone carrier | 2016 |
| 864-587 | AT&T (local phone) | Local phone company | – |
| 864-590 | Verizon Wireless | Mobile carrier | – |
| 864-591 | AT&T (local phone) | Local phone company | – |
| 864-592 | AT&T (local phone) | Local phone company | – |
| 864-594 | AT&T (local phone) | Local phone company | – |
| 864-595 | AT&T (local phone) | Local phone company | – |
| 864-596 | AT&T (local phone) | Local phone company | – |
| 864-597 | AT&T (local phone) | Local phone company | – |
| 864-598 | AT&T (local phone) | Local phone company | – |
| 864-599 | AT&T (local phone) | Local phone company | – |
| 864-606 | Verizon Wireless | Mobile carrier | 2014 |
| 864-612 | Verizon Wireless | Mobile carrier | 2007 |
| 864-620 | Spok | Paging service | – |
| 864-621 | T-Mobile (including Sprint) | Mobile carrier | – |
| 864-641 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 864-658 | Verizon Wireless | Mobile carrier | 2020 |
| 864-680 | Verizon Wireless | Mobile carrier | – |
| 864-699 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-706 | Verizon Wireless | Mobile carrier | – |
| 864-707 | AT&T Enterprises | Phone company | 2014 |
| 864-753 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 864-754 | Telnyx | Internet / business phone carrier | 2016 |
| 864-764 | Verizon Wireless | Mobile carrier | 2002 |
| 864-768 | TON80 Communications | Internet / business phone carrier | 2021 |
| 864-804 | Verizon Wireless | Mobile carrier | 2007 |
| 864-809 | T-Mobile (including Sprint) | Mobile carrier | – |
| 864-814 | AT&T (local phone) | Local phone company | – |
| 864-825 | Onvoy | Internet / business phone carrier | 2023 |
| 864-875 | AT&T Mobility | Mobile carrier | 2023 |
| 864-909 | Verizon Wireless | Mobile carrier | – |
| 864-913 | Verizon Wireless | Mobile carrier | 2016 |
| 864-917 | Commio | Internet / business phone carrier | 2024 |
| 864-921 | AT&T Mobility | Mobile carrier | – |
| 864-948 | AT&T (local phone) | Local phone company | – |
| 864-978 | Verizon Wireless | Mobile carrier | – |
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.