Phone numbers in Merrillville, Indiana
Merrillville has 53 phone prefixes in area code 219.
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 30%
- Local phone company 47%
- Internet / business phone carrier 15%
- Paging service 4%
- Phone company 4%
Every prefix in Merrillville
Search the first six digits of a number in this list. If it's here, the number started in Merrillville with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 219-222 | Indiana Paging Network | Paging service | – |
| 219-337 | Onvoy | Internet / business phone carrier | 2023 |
| 219-349 | AT&T Mobility | Mobile carrier | 2023 |
| 219-375 | Onvoy | Internet / business phone carrier | 2024 |
| 219-381 | AT&T Mobility | Mobile carrier | 2002 |
| 219-382 | AT&T Mobility | Mobile carrier | 2024 |
| 219-383 | AT&T Mobility | Mobile carrier | 2024 |
| 219-387 | AT&T Mobility | Mobile carrier | 2024 |
| 219-396 | AT&T Mobility | Mobile carrier | 2024 |
| 219-410 | AT&T Mobility | Mobile carrier | 2025 |
| 219-416 | AT&T Mobility | Mobile carrier | 2025 |
| 219-417 | AT&T Mobility | Mobile carrier | 2025 |
| 219-418 | AT&T Mobility | Mobile carrier | 2025 |
| 219-420 | AT&T Mobility | Mobile carrier | 2025 |
| 219-421 | AT&T Mobility | Mobile carrier | 2025 |
| 219-428 | AT&T Mobility | Mobile carrier | 2026 |
| 219-430 | AT&T Mobility | Mobile carrier | 2026 |
| 219-444 | Onvoy | Internet / business phone carrier | 2015 |
| 219-472 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 219-500 | Onvoy | Internet / business phone carrier | 2017 |
| 219-525 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 219-576 | Fbn Indiana | Phone company | – |
| 219-616 | AT&T Mobility | Mobile carrier | – |
| 219-641 | AT&T (local phone) | Local phone company | – |
| 219-644 | AT&T (local phone) | Local phone company | – |
| 219-647 | AT&T (local phone) | Local phone company | – |
| 219-648 | AT&T (local phone) | Local phone company | – |
| 219-649 | AT&T (local phone) | Local phone company | – |
| 219-650 | AT&T (local phone) | Local phone company | – |
| 219-660 | AT&T (local phone) | Local phone company | – |
| 219-680 | AT&T (local phone) | Local phone company | – |
| 219-681 | AT&T (local phone) | Local phone company | – |
| 219-682 | AT&T (local phone) | Local phone company | – |
| 219-685 | AT&T (local phone) | Local phone company | – |
| 219-714 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 219-717 | Spok | Paging service | – |
| 219-718 | AT&T Mobility | Mobile carrier | – |
| 219-736 | AT&T (local phone) | Local phone company | – |
| 219-738 | AT&T (local phone) | Local phone company | – |
| 219-750 | Midwest Telecom Of America | Phone company | 2005 |
| 219-751 | AT&T (local phone) | Local phone company | – |
| 219-752 | AT&T (local phone) | Local phone company | – |
| 219-755 | AT&T (local phone) | Local phone company | – |
| 219-756 | AT&T (local phone) | Local phone company | – |
| 219-757 | AT&T (local phone) | Local phone company | – |
| 219-758 | Fractel | Internet / business phone carrier | 2019 |
| 219-769 | AT&T (local phone) | Local phone company | – |
| 219-783 | AT&T (local phone) | Local phone company | – |
| 219-791 | AT&T (local phone) | Local phone company | – |
| 219-793 | AT&T (local phone) | Local phone company | – |
| 219-794 | AT&T (local phone) | Local phone company | – |
| 219-795 | AT&T (local phone) | Local phone company | – |
| 219-796 | AT&T (local phone) | Local phone company | – |
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.