Phone numbers in Woodstock, Illinois
Woodstock has 37 phone prefixes in area codes 779, 815.
Biggest holders: Verizon Wireless, AT&T Mobility, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 57%
- Local phone company 11%
- Internet / business phone carrier 24%
- Paging service 3%
- Phone company 5%
Every prefix in Woodstock
Search the first six digits of a number in this list. If it's here, the number started in Woodstock with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 779-247 | Verizon Wireless | Mobile carrier | 2017 |
| 779-302 | Verizon Wireless | Mobile carrier | 2015 |
| 779-312 | Verizon Wireless | Mobile carrier | 2023 |
| 779-336 | Fractel | Internet / business phone carrier | 2021 |
| 779-396 | Verizon Wireless | Mobile carrier | 2024 |
| 779-439 | Verizon Wireless | Mobile carrier | 2026 |
| 779-625 | TON80 Communications | Internet / business phone carrier | 2022 |
| 779-713 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 779-915 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 815-206 | AT&T (local phone) | Local phone company | – |
| 815-236 | AT&T Mobility | Mobile carrier | – |
| 815-245 | AT&T Mobility | Mobile carrier | – |
| 815-308 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 815-321 | Onvoy | Internet / business phone carrier | – |
| 815-333 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 815-334 | AT&T (local phone) | Local phone company | – |
| 815-337 | AT&T (local phone) | Local phone company | – |
| 815-338 | AT&T (local phone) | Local phone company | – |
| 815-345 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 815-347 | Verizon Wireless | Mobile carrier | – |
| 815-353 | Verizon Wireless | Mobile carrier | – |
| 815-354 | Verizon Wireless | Mobile carrier | – |
| 815-355 | Verizon Wireless | Mobile carrier | – |
| 815-382 | AT&T Mobility | Mobile carrier | – |
| 815-451 | AT&T Mobility | Mobile carrier | – |
| 815-482 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-502 | First Communications | Phone company | – |
| 815-527 | Teleport Communications America | Internet / business phone carrier | – |
| 815-529 | Verizon Wireless | Mobile carrier | – |
| 815-575 | AT&T Mobility | Mobile carrier | – |
| 815-687 | Rcn Telecom Services Of Illinios | Phone company | – |
| 815-701 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 815-775 | Spok | Paging service | – |
| 815-790 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-814 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 815-861 | AT&T Mobility | Mobile carrier | – |
| 815-880 | MCImetro (Verizon Business) | Internet / business phone carrier | 2001 |
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.