Phone numbers in Hartford, Connecticut
Hartford has 297 phone prefixes in area codes 860, 959.
Biggest holders: AT&T (local phone), Verizon Wireless, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 30%
- Local phone company 38%
- Internet / business phone carrier 24%
- Paging service 7%
- Phone company 1%
Every prefix in Hartford
Search the first six digits of a number in this list. If it's here, the number started in Hartford with the carrier shown. If it isn't, check the Connecticut page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 860-200 | Onvoy | Internet / business phone carrier | 2015 |
| 860-202 | AT&T Mobility | Mobile carrier | – |
| 860-205 | AT&T Mobility | Mobile carrier | – |
| 860-206 | Comcast | Internet / business phone carrier | – |
| 860-209 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 860-212 | AT&T Mobility | Mobile carrier | – |
| 860-214 | Verizon Wireless | Mobile carrier | – |
| 860-216 | Comcast | Internet / business phone carrier | – |
| 860-218 | Windstream (PAETEC) | Internet / business phone carrier | 2004 |
| 860-220 | American Messaging Services | Paging service | – |
| 860-221 | Teleport Communications America | Internet / business phone carrier | – |
| 860-226 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-231 | AT&T (local phone) | Local phone company | – |
| 860-232 | AT&T (local phone) | Local phone company | – |
| 860-233 | AT&T (local phone) | Local phone company | – |
| 860-236 | AT&T (local phone) | Local phone company | – |
| 860-240 | AT&T (local phone) | Local phone company | – |
| 860-241 | AT&T (local phone) | Local phone company | – |
| 860-242 | AT&T (local phone) | Local phone company | – |
| 860-243 | AT&T (local phone) | Local phone company | – |
| 860-244 | AT&T (local phone) | Local phone company | – |
| 860-246 | AT&T (local phone) | Local phone company | – |
| 860-247 | AT&T (local phone) | Local phone company | – |
| 860-249 | AT&T (local phone) | Local phone company | – |
| 860-250 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-251 | AT&T (local phone) | Local phone company | – |
| 860-252 | Teleport Communications America | Internet / business phone carrier | – |
| 860-256 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-257 | AT&T (local phone) | Local phone company | – |
| 860-258 | AT&T (local phone) | Local phone company | – |
| 860-260 | American Messaging Services | Paging service | – |
| 860-263 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-270 | AT&T (local phone) | Local phone company | – |
| 860-273 | AT&T (local phone) | Local phone company | – |
| 860-275 | AT&T (local phone) | Local phone company | – |
| 860-277 | AT&T (local phone) | Local phone company | – |
| 860-278 | AT&T (local phone) | Local phone company | – |
| 860-279 | American Messaging Services | Paging service | – |
| 860-280 | AT&T (local phone) | Local phone company | – |
| 860-282 | AT&T (local phone) | Local phone company | – |
| 860-286 | AT&T (local phone) | Local phone company | – |
| 860-289 | AT&T (local phone) | Local phone company | – |
| 860-290 | AT&T (local phone) | Local phone company | – |
| 860-291 | AT&T (local phone) | Local phone company | – |
| 860-293 | AT&T (local phone) | Local phone company | – |
| 860-296 | AT&T (local phone) | Local phone company | – |
| 860-297 | AT&T (local phone) | Local phone company | – |
| 860-299 | AT&T (local phone) | Local phone company | – |
| 860-305 | Verizon Wireless | Mobile carrier | – |
| 860-306 | Verizon Wireless | Mobile carrier | – |
| 860-308 | AT&T (local phone) | Local phone company | – |
| 860-310 | Comcast | Internet / business phone carrier | 2012 |
| 860-313 | AT&T (local phone) | Local phone company | – |
| 860-320 | American Messaging Services | Paging service | – |
| 860-324 | Verizon Wireless | Mobile carrier | 2002 |
| 860-330 | Spok | Paging service | – |
| 860-331 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-332 | Spok | Paging service | – |
| 860-335 | Verizon Wireless | Mobile carrier | – |
| 860-340 | American Messaging Services | Paging service | – |
| 860-353 | AT&T (local phone) | Local phone company | 2007 |
| 860-360 | Spok | Paging service | – |
| 860-363 | Spok | Paging service | – |
| 860-366 | Spok | Paging service | – |
| 860-369 | Spok | Paging service | – |
| 860-371 | AT&T (local phone) | Local phone company | – |
| 860-372 | AT&T (local phone) | Local phone company | – |
| 860-380 | Teleport Communications America | Internet / business phone carrier | – |
| 860-402 | AT&T Mobility | Mobile carrier | – |
| 860-403 | AT&T (local phone) | Local phone company | – |
| 860-416 | AT&T Mobility | Mobile carrier | – |
| 860-418 | AT&T (local phone) | Local phone company | – |
| 860-422 | AT&T (local phone) | Local phone company | – |
| 860-424 | AT&T (local phone) | Local phone company | – |
| 860-436 | Comcast | Internet / business phone carrier | – |
| 860-461 | Comcast | Internet / business phone carrier | – |
| 860-462 | Verizon Wireless | Mobile carrier | – |
| 860-463 | Verizon Wireless | Mobile carrier | – |
| 860-466 | Teleport Communications America | Internet / business phone carrier | – |
| 860-471 | Verizon Wireless | Mobile carrier | 2009 |
| 860-472 | Windstream (PAETEC) | Internet / business phone carrier | 2020 |
| 860-473 | Spok | Paging service | – |
| 860-478 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-490 | Verizon Wireless | Mobile carrier | – |
| 860-493 | AT&T (local phone) | Local phone company | – |
| 860-500 | Verizon Wireless | Mobile carrier | 2016 |
| 860-502 | AT&T (local phone) | Local phone company | – |
| 860-503 | AT&T Mobility | Mobile carrier | 2012 |
| 860-504 | Spok | Paging service | – |
| 860-508 | Verizon Wireless | Mobile carrier | – |
| 860-509 | Teleport Communications America | Internet / business phone carrier | – |
| 860-513 | AT&T (local phone) | Local phone company | – |
| 860-519 | Comcast | Internet / business phone carrier | – |
| 860-520 | AT&T (local phone) | Local phone company | – |
| 860-521 | AT&T (local phone) | Local phone company | – |
| 860-522 | AT&T (local phone) | Local phone company | – |
| 860-523 | AT&T (local phone) | Local phone company | – |
| 860-524 | AT&T (local phone) | Local phone company | – |
| 860-525 | AT&T (local phone) | Local phone company | – |
| 860-527 | AT&T (local phone) | Local phone company | – |
| 860-528 | AT&T (local phone) | Local phone company | – |
| 860-529 | AT&T (local phone) | Local phone company | – |
| 860-534 | AT&T (local phone) | Local phone company | – |
| 860-539 | Verizon Wireless | Mobile carrier | – |
| 860-541 | AT&T (local phone) | Local phone company | – |
| 860-543 | AT&T (local phone) | Local phone company | – |
| 860-545 | AT&T (local phone) | Local phone company | – |
| 860-547 | AT&T (local phone) | Local phone company | – |
| 860-548 | AT&T (local phone) | Local phone company | – |
| 860-549 | AT&T (local phone) | Local phone company | – |
| 860-550 | AT&T (local phone) | Local phone company | – |
| 860-557 | AT&T (local phone) | Local phone company | – |
| 860-558 | Verizon Wireless | Mobile carrier | – |
| 860-559 | Verizon Wireless | Mobile carrier | – |
| 860-560 | AT&T (local phone) | Local phone company | – |
| 860-561 | AT&T (local phone) | Local phone company | – |
| 860-563 | AT&T (local phone) | Local phone company | – |
| 860-565 | AT&T (local phone) | Local phone company | – |
| 860-566 | AT&T (local phone) | Local phone company | – |
| 860-568 | AT&T (local phone) | Local phone company | – |
| 860-569 | AT&T (local phone) | Local phone company | – |
| 860-570 | AT&T (local phone) | Local phone company | – |
| 860-571 | AT&T (local phone) | Local phone company | – |
| 860-573 | Verizon Wireless | Mobile carrier | – |
| 860-578 | Verizon Wireless | Mobile carrier | 2008 |
| 860-586 | AT&T (local phone) | Local phone company | – |
| 860-587 | Spok | Paging service | – |
| 860-588 | American Messaging Services | Paging service | – |
| 860-593 | AT&T Mobility | Mobile carrier | 2002 |
| 860-594 | AT&T (local phone) | Local phone company | – |
| 860-595 | AT&T (local phone) | Local phone company | – |
| 860-597 | AT&T Mobility | Mobile carrier | 2002 |
| 860-604 | Verizon Wireless | Mobile carrier | – |
| 860-610 | AT&T (local phone) | Local phone company | – |
| 860-614 | Verizon Wireless | Mobile carrier | – |
| 860-616 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-622 | AT&T (local phone) | Local phone company | – |
| 860-655 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-656 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-660 | AT&T (local phone) | Local phone company | – |
| 860-665 | AT&T (local phone) | Local phone company | – |
| 860-666 | AT&T (local phone) | Local phone company | – |
| 860-667 | AT&T (local phone) | Local phone company | – |
| 860-670 | Verizon Wireless | Mobile carrier | – |
| 860-680 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-690 | AT&T Mobility | Mobile carrier | – |
| 860-692 | AT&T (local phone) | Local phone company | – |
| 860-695 | AT&T (local phone) | Local phone company | – |
| 860-696 | AT&T (local phone) | Local phone company | – |
| 860-702 | AT&T (local phone) | Local phone company | – |
| 860-706 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-707 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-708 | Spok | Paging service | – |
| 860-709 | AT&T Mobility | Mobile carrier | 2011 |
| 860-712 | AT&T Mobility | Mobile carrier | – |
| 860-713 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-714 | AT&T (local phone) | Local phone company | – |
| 860-716 | Verizon Wireless | Mobile carrier | – |
| 860-719 | MetroPCS (T-Mobile) | Mobile carrier | 2008 |
| 860-720 | American Messaging Services | Paging service | – |
| 860-721 | AT&T (local phone) | Local phone company | – |
| 860-722 | AT&T (local phone) | Local phone company | – |
| 860-723 | AT&T (local phone) | Local phone company | – |
| 860-724 | AT&T (local phone) | Local phone company | – |
| 860-725 | AT&T (local phone) | Local phone company | – |
| 860-726 | AT&T (local phone) | Local phone company | – |
| 860-727 | AT&T (local phone) | Local phone company | – |
| 860-728 | AT&T (local phone) | Local phone company | – |
| 860-729 | Verizon Wireless | Mobile carrier | – |
| 860-748 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 860-755 | AT&T (local phone) | Local phone company | – |
| 860-756 | AT&T (local phone) | Local phone company | – |
| 860-757 | AT&T (local phone) | Local phone company | – |
| 860-760 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 860-761 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-762 | Aquis Communications | Phone company | 2004 |
| 860-765 | AT&T (local phone) | Local phone company | – |
| 860-768 | AT&T (local phone) | Local phone company | – |
| 860-769 | AT&T (local phone) | Local phone company | – |
| 860-778 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-785 | Nuso | Internet / business phone carrier | 2013 |
| 860-794 | T-Mobile (including Sprint) | Mobile carrier | – |
| 860-796 | T-Mobile (including Sprint) | Mobile carrier | – |
| 860-798 | Verizon Wireless | Mobile carrier | – |
| 860-802 | American Messaging Services | Paging service | – |
| 860-803 | Verizon Wireless | Mobile carrier | – |
| 860-805 | AT&T Mobility | Mobile carrier | 2001 |
| 860-808 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-810 | Teleport Communications America | Internet / business phone carrier | – |
| 860-816 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-817 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-818 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-819 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-820 | Spok | Paging service | – |
| 860-825 | Spok | Paging service | – |
| 860-830 | AT&T Mobility | Mobile carrier | – |
| 860-833 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-836 | Verizon Wireless | Mobile carrier | – |
| 860-837 | Windstream (PAETEC) | Internet / business phone carrier | 2011 |
| 860-838 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 860-840 | MetroPCS (T-Mobile) | Mobile carrier | 2008 |
| 860-841 | AT&T Mobility | Mobile carrier | – |
| 860-842 | American Messaging Services | Paging service | – |
| 860-856 | Windstream (PAETEC) | Internet / business phone carrier | 2011 |
| 860-869 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 860-874 | Verizon Wireless | Mobile carrier | – |
| 860-878 | AT&T (local phone) | Local phone company | – |
| 860-881 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-882 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-883 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-888 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-890 | MetroPCS (T-Mobile) | Mobile carrier | 2008 |
| 860-895 | AT&T (local phone) | Local phone company | – |
| 860-897 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 860-899 | AT&T Mobility | Mobile carrier | 2008 |
| 860-900 | Peerless Network Of Connecticut | Internet / business phone carrier | 2015 |
| 860-904 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-906 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-913 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-916 | Verizon Wireless | Mobile carrier | – |
| 860-920 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-922 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-924 | Ymax Communications | Phone company | 2011 |
| 860-929 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-930 | Verizon Wireless | Mobile carrier | – |
| 860-936 | Verizon Wireless | Mobile carrier | 2015 |
| 860-937 | Comcast | Internet / business phone carrier | 2014 |
| 860-939 | American Messaging Services | Paging service | – |
| 860-944 | AT&T Mobility | Mobile carrier | – |
| 860-947 | AT&T (local phone) | Local phone company | – |
| 860-948 | AT&T (local phone) | Local phone company | – |
| 860-951 | AT&T (local phone) | Local phone company | – |
| 860-952 | AT&T (local phone) | Local phone company | – |
| 860-953 | AT&T (local phone) | Local phone company | – |
| 860-954 | AT&T (local phone) | Local phone company | – |
| 860-955 | Peerless Network Of Connecticut | Internet / business phone carrier | 2010 |
| 860-956 | AT&T (local phone) | Local phone company | – |
| 860-965 | AT&T Mobility | Mobile carrier | 2001 |
| 860-966 | Verizon Wireless | Mobile carrier | 2002 |
| 860-967 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 860-969 | Onvoy | Internet / business phone carrier | 2015 |
| 860-970 | Onvoy | Internet / business phone carrier | 2006 |
| 860-972 | AT&T (local phone) | Local phone company | 2008 |
| 860-977 | AT&T Mobility | Mobile carrier | – |
| 860-978 | AT&T Mobility | Mobile carrier | – |
| 860-982 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 860-983 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-985 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-986 | AT&T (local phone) | Local phone company | – |
| 860-987 | AT&T (local phone) | Local phone company | – |
| 860-989 | AT&T Mobility | Mobile carrier | – |
| 860-990 | Verizon Wireless | Mobile carrier | 2010 |
| 860-992 | AT&T Mobility | Mobile carrier | 2006 |
| 860-993 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 860-994 | AT&T (local phone) | Local phone company | 2014 |
| 860-995 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 860-996 | Verizon Wireless | Mobile carrier | 2015 |
| 860-997 | T-Mobile (including Sprint) | Mobile carrier | – |
| 860-998 | AT&T (local phone) | Local phone company | – |
| 860-999 | Peerless Network Of Connecticut | Internet / business phone carrier | 2012 |
| 959-200 | CenturyLink / Lumen | Local phone company | 2014 |
| 959-204 | Verizon Wireless | Mobile carrier | 2018 |
| 959-205 | Exiant Communications | Phone company | 2019 |
| 959-206 | Vonage America | Internet / business phone carrier | 2018 |
| 959-221 | IP Horizon | Internet / business phone carrier | 2021 |
| 959-223 | Hd Carrier | Internet / business phone carrier | 2021 |
| 959-230 | Teleport Communications America | Internet / business phone carrier | – |
| 959-236 | Boost / Virgin Mobile | Mobile carrier | 2021 |
| 959-240 | Teleport Communications America | Internet / business phone carrier | 2022 |
| 959-248 | Nuso | Internet / business phone carrier | 2023 |
| 959-255 | Verizon Wireless | Mobile carrier | – |
| 959-256 | Onvoy | Internet / business phone carrier | 2023 |
| 959-257 | Verizon Wireless | Mobile carrier | 2023 |
| 959-258 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 959-259 | Onvoy | Internet / business phone carrier | 2024 |
| 959-262 | Verizon Wireless | Mobile carrier | 2024 |
| 959-273 | Verizon Wireless | Mobile carrier | 2025 |
| 959-274 | AT&T Mobility | Mobile carrier | 2025 |
| 959-276 | Verizon Wireless | Mobile carrier | 2025 |
| 959-278 | Boost / Virgin Mobile | Mobile carrier | 2025 |
| 959-279 | Wavenation | Phone company | 2026 |
| 959-280 | Tpx Communications | Internet / business phone carrier | 2026 |
| 959-282 | AT&T Mobility | Mobile carrier | 2016 |
| 959-299 | Teleport Communications America | Internet / business phone carrier | 2015 |
| 959-333 | Telnyx | Internet / business phone carrier | 2017 |
| 959-529 | Fractel | Internet / business phone carrier | 2020 |
| 959-599 | Skyetel | Internet / business phone carrier | 2021 |
| 959-666 | Onvoy | Internet / business phone carrier | 2017 |
| 959-710 | Onvoy | Internet / business phone carrier | 2019 |
| 959-777 | Onvoy | Internet / business phone carrier | 2015 |
| 959-867 | Commio | Internet / business phone carrier | 2019 |
| 959-876 | Teleport Communications America | Internet / business phone carrier | 2020 |
| 959-888 | Onvoy | Internet / business phone carrier | 2015 |
| 959-895 | Twilio | Internet / business phone carrier | 2020 |
| 959-900 | Terra Nova Telecom | Internet / business phone carrier | 2018 |
| 959-997 | Onvoy | Internet / business phone carrier | 2026 |
| 959-999 | Onvoy | Internet / business phone carrier | 2014 |
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.