Phone numbers in St. Johns, Florida
St. Johns has 76 phone prefixes in area codes 324, 904.
Biggest holders: AT&T (local phone), AT&T Mobility, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 28%
- Local phone company 29%
- Internet / business phone carrier 36%
- Paging service 5%
- Phone company 3%
Every prefix in St. Johns
Search the first six digits of a number in this list. If it's here, the number started in St. Johns with the carrier shown. If it isn't, check the Florida page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 324-666 | Onvoy | Internet / business phone carrier | 2025 |
| 324-777 | Livewire Telecom | Phone company | 2025 |
| 904-201 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 904-209 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 904-217 | Comcast | Internet / business phone carrier | 2005 |
| 904-230 | AT&T (local phone) | Local phone company | – |
| 904-283 | Spok | Paging service | – |
| 904-286 | Spok | Paging service | – |
| 904-287 | AT&T (local phone) | Local phone company | – |
| 904-293 | AT&T Mobility | Mobile carrier | 2016 |
| 904-295 | Onvoy | Internet / business phone carrier | 2016 |
| 904-315 | AT&T Mobility | Mobile carrier | – |
| 904-325 | MetroPCS (T-Mobile) | Mobile carrier | 2008 |
| 904-342 | Comcast | Internet / business phone carrier | – |
| 904-347 | T-Mobile (including Sprint) | Mobile carrier | – |
| 904-377 | T-Mobile (including Sprint) | Mobile carrier | – |
| 904-392 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 904-417 | Teleport Communications America | Internet / business phone carrier | – |
| 904-429 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 904-436 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 904-439 | AT&T Mobility | Mobile carrier | 2017 |
| 904-460 | AT&T (local phone) | Local phone company | – |
| 904-461 | AT&T (local phone) | Local phone company | – |
| 904-466 | Verizon Wireless | Mobile carrier | – |
| 904-471 | AT&T (local phone) | Local phone company | – |
| 904-481 | Vonage America | Internet / business phone carrier | 2018 |
| 904-484 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 904-494 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 904-495 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 904-501 | AT&T Mobility | Mobile carrier | – |
| 904-506 | Bandwidth | Internet / business phone carrier | 2019 |
| 904-522 | AT&T (local phone) | Local phone company | – |
| 904-540 | AT&T Mobility | Mobile carrier | – |
| 904-547 | AT&T (local phone) | Local phone company | – |
| 904-584 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 904-587 | Onvoy | Internet / business phone carrier | 2018 |
| 904-599 | T-Mobile (including Sprint) | Mobile carrier | – |
| 904-615 | AT&T (local phone) | Local phone company | – |
| 904-617 | Tpx Communications | Internet / business phone carrier | 2026 |
| 904-640 | 1ST Point Communications | Phone company | 2020 |
| 904-669 | T-Mobile (including Sprint) | Mobile carrier | – |
| 904-671 | AT&T (local phone) | Local phone company | 2006 |
| 904-679 | AT&T (local phone) | Local phone company | – |
| 904-687 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 904-689 | AT&T Mobility | Mobile carrier | 2022 |
| 904-691 | Level 3 (Lumen) | Internet / business phone carrier | 2021 |
| 904-754 | Bhn IP Enabled Services | Internet / business phone carrier | 2025 |
| 904-770 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 904-788 | Fractel | Internet / business phone carrier | 2020 |
| 904-789 | Onvoy | Internet / business phone carrier | 2020 |
| 904-792 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 904-793 | Verizon Wireless | Mobile carrier | 2022 |
| 904-794 | AT&T (local phone) | Local phone company | – |
| 904-797 | AT&T (local phone) | Local phone company | – |
| 904-806 | AT&T Mobility | Mobile carrier | – |
| 904-808 | AT&T (local phone) | Local phone company | – |
| 904-810 | AT&T (local phone) | Local phone company | – |
| 904-814 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 904-815 | AT&T Mobility | Mobile carrier | 2023 |
| 904-819 | AT&T (local phone) | Local phone company | – |
| 904-823 | AT&T (local phone) | Local phone company | – |
| 904-824 | AT&T (local phone) | Local phone company | – |
| 904-825 | AT&T (local phone) | Local phone company | – |
| 904-826 | AT&T (local phone) | Local phone company | – |
| 904-827 | AT&T (local phone) | Local phone company | – |
| 904-829 | AT&T (local phone) | Local phone company | – |
| 904-837 | TON80 Communications | Internet / business phone carrier | 2021 |
| 904-856 | Abc Paging City Beepers | Paging service | 2001 |
| 904-857 | Abc Paging City Beepers | Paging service | – |
| 904-907 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 904-921 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 904-925 | Onvoy | Internet / business phone carrier | 2023 |
| 904-926 | Boost / Virgin Mobile | Mobile carrier | 2023 |
| 904-940 | AT&T (local phone) | Local phone company | – |
| 904-946 | Onvoy | Internet / business phone carrier | 2023 |
| 904-979 | Onvoy | Internet / business phone carrier | 2025 |
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.