Phone numbers in Kirkwood, Missouri
Kirkwood has 103 phone prefixes in area codes 314, 557.
Biggest holders: AT&T Mobility, AT&T (local phone), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 65%
- Local phone company 9%
- Internet / business phone carrier 24%
- Phone company 2%
Every prefix in Kirkwood
Search the first six digits of a number in this list. If it's here, the number started in Kirkwood with the carrier shown. If it isn't, check the Missouri page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 314-210 | AT&T Mobility | Mobile carrier | – |
| 314-217 | AT&T Mobility | Mobile carrier | 2022 |
| 314-221 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 314-223 | AT&T Mobility | Mobile carrier | – |
| 314-238 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 314-277 | AT&T Mobility | Mobile carrier | – |
| 314-278 | AT&T Mobility | Mobile carrier | 2013 |
| 314-287 | AT&T Enterprises | Phone company | 2011 |
| 314-288 | Teleport Communications America | Internet / business phone carrier | – |
| 314-315 | Onvoy | Internet / business phone carrier | – |
| 314-350 | Onvoy | Internet / business phone carrier | 2022 |
| 314-394 | Charter / Spectrum | Internet / business phone carrier | – |
| 314-401 | AT&T Mobility | Mobile carrier | – |
| 314-402 | AT&T Mobility | Mobile carrier | – |
| 314-403 | Bandwidth | Internet / business phone carrier | 2010 |
| 314-404 | AT&T Mobility | Mobile carrier | 2025 |
| 314-420 | AT&T Mobility | Mobile carrier | – |
| 314-462 | Charter / Spectrum | Internet / business phone carrier | 2016 |
| 314-471 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 314-478 | AT&T Mobility | Mobile carrier | 2012 |
| 314-488 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 314-520 | AT&T Mobility | Mobile carrier | – |
| 314-526 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 314-540 | AT&T Mobility | Mobile carrier | – |
| 314-541 | AT&T Mobility | Mobile carrier | – |
| 314-550 | AT&T Mobility | Mobile carrier | – |
| 314-560 | AT&T Mobility | Mobile carrier | – |
| 314-570 | AT&T Mobility | Mobile carrier | – |
| 314-578 | AT&T Mobility | Mobile carrier | – |
| 314-586 | AT&T Mobility | Mobile carrier | 2018 |
| 314-596 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 314-602 | AT&T Mobility | Mobile carrier | – |
| 314-603 | AT&T Mobility | Mobile carrier | – |
| 314-604 | AT&T Mobility | Mobile carrier | – |
| 314-605 | AT&T Mobility | Mobile carrier | – |
| 314-606 | AT&T Mobility | Mobile carrier | – |
| 314-607 | AT&T Mobility | Mobile carrier | – |
| 314-608 | AT&T Mobility | Mobile carrier | – |
| 314-609 | AT&T Mobility | Mobile carrier | – |
| 314-620 | AT&T (local phone) | Local phone company | – |
| 314-623 | AT&T Mobility | Mobile carrier | – |
| 314-626 | Bandwidth | Internet / business phone carrier | – |
| 314-630 | AT&T Mobility | Mobile carrier | – |
| 314-634 | AT&T Mobility | Mobile carrier | 2019 |
| 314-639 | Bandwidth | Internet / business phone carrier | 2019 |
| 314-640 | AT&T Mobility | Mobile carrier | – |
| 314-650 | AT&T Mobility | Mobile carrier | – |
| 314-660 | AT&T Mobility | Mobile carrier | – |
| 314-671 | AT&T Mobility | Mobile carrier | 2019 |
| 314-677 | AT&T Mobility | Mobile carrier | 2005 |
| 314-681 | AT&T Mobility | Mobile carrier | 2006 |
| 314-686 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 314-689 | Onvoy | Internet / business phone carrier | – |
| 314-691 | AT&T Mobility | Mobile carrier | – |
| 314-697 | AT&T Mobility | Mobile carrier | 2019 |
| 314-698 | AT&T Enterprises | Phone company | – |
| 314-717 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 314-759 | AT&T Mobility | Mobile carrier | 2019 |
| 314-774 | AT&T Mobility | Mobile carrier | 2006 |
| 314-775 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 314-779 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 314-795 | AT&T Mobility | Mobile carrier | – |
| 314-799 | AT&T Mobility | Mobile carrier | – |
| 314-800 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 314-803 | AT&T Mobility | Mobile carrier | – |
| 314-805 | AT&T Mobility | Mobile carrier | – |
| 314-807 | AT&T Mobility | Mobile carrier | – |
| 314-808 | AT&T Mobility | Mobile carrier | – |
| 314-809 | AT&T Mobility | Mobile carrier | – |
| 314-821 | AT&T (local phone) | Local phone company | – |
| 314-822 | AT&T (local phone) | Local phone company | – |
| 314-825 | AT&T Mobility | Mobile carrier | 2007 |
| 314-835 | AT&T (local phone) | Local phone company | – |
| 314-852 | AT&T Mobility | Mobile carrier | – |
| 314-856 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 314-858 | Charter / Spectrum | Internet / business phone carrier | 2013 |
| 314-893 | AT&T Mobility | Mobile carrier | 2021 |
| 314-909 | AT&T (local phone) | Local phone company | – |
| 314-926 | Onvoy | Internet / business phone carrier | 2016 |
| 314-946 | Fractel | Internet / business phone carrier | 2019 |
| 314-952 | AT&T Mobility | Mobile carrier | – |
| 314-954 | AT&T Mobility | Mobile carrier | – |
| 314-957 | AT&T (local phone) | Local phone company | – |
| 314-960 | AT&T Mobility | Mobile carrier | – |
| 314-965 | AT&T (local phone) | Local phone company | – |
| 314-966 | AT&T (local phone) | Local phone company | – |
| 314-971 | AT&T Mobility | Mobile carrier | – |
| 314-974 | AT&T Mobility | Mobile carrier | – |
| 314-981 | AT&T Mobility | Mobile carrier | 2026 |
| 314-984 | AT&T (local phone) | Local phone company | – |
| 557-201 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 557-209 | Onvoy | Internet / business phone carrier | 2024 |
| 557-227 | AT&T Mobility | Mobile carrier | 2024 |
| 557-229 | AT&T Mobility | Mobile carrier | 2024 |
| 557-235 | AT&T Mobility | Mobile carrier | 2025 |
| 557-238 | AT&T Mobility | Mobile carrier | 2025 |
| 557-244 | AT&T Mobility | Mobile carrier | 2025 |
| 557-251 | AT&T Mobility | Mobile carrier | 2026 |
| 557-253 | AT&T Mobility | Mobile carrier | 2026 |
| 557-261 | AT&T Mobility | Mobile carrier | 2026 |
| 557-567 | Onvoy | Internet / business phone carrier | 2024 |
| 557-666 | Onvoy | Internet / business phone carrier | 2026 |
| 557-888 | Terra Nova Telecom | Internet / business phone carrier | 2022 |
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.