Phone numbers in Valparaiso, Indiana
Valparaiso has 31 phone prefixes in area code 219.
Biggest holders: Frontier, Verizon Wireless, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 48%
- Local phone company 26%
- Internet / business phone carrier 23%
- Phone company 3%
Every prefix in Valparaiso
Search the first six digits of a number in this list. If it's here, the number started in Valparaiso with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 219-216 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 219-241 | AT&T Mobility | Mobile carrier | – |
| 219-242 | AT&T Mobility | Mobile carrier | – |
| 219-246 | Verizon Wireless | Mobile carrier | 2007 |
| 219-252 | Verizon Wireless | Mobile carrier | 2008 |
| 219-263 | Frontier | Local phone company | 2005 |
| 219-265 | AT&T Mobility | Mobile carrier | 2020 |
| 219-280 | Onvoy | Internet / business phone carrier | 2021 |
| 219-286 | Mcc Telephony Of The Mid-west | Internet / business phone carrier | 2010 |
| 219-299 | AT&T Mobility | Mobile carrier | 2008 |
| 219-307 | Verizon Wireless | Mobile carrier | 2012 |
| 219-309 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 219-312 | Onvoy | Internet / business phone carrier | 2019 |
| 219-329 | Verizon Wireless | Mobile carrier | 2023 |
| 219-353 | Onvoy | Internet / business phone carrier | 2023 |
| 219-386 | AT&T Mobility | Mobile carrier | 2014 |
| 219-405 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 219-409 | Onvoy | Internet / business phone carrier | 2025 |
| 219-462 | Frontier | Local phone company | – |
| 219-464 | Frontier | Local phone company | – |
| 219-465 | Frontier | Local phone company | – |
| 219-476 | Frontier | Local phone company | – |
| 219-477 | Frontier | Local phone company | – |
| 219-508 | Verizon Wireless | Mobile carrier | 2002 |
| 219-510 | Fbn Indiana | Phone company | – |
| 219-531 | Frontier | Local phone company | – |
| 219-548 | Frontier | Local phone company | – |
| 219-615 | Comcast | Internet / business phone carrier | 2015 |
| 219-707 | Verizon Wireless | Mobile carrier | 2005 |
| 219-786 | Fractel | Internet / business phone carrier | 2021 |
| 219-916 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
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.