Phone numbers in Middleton, Wisconsin
Middleton has 17 phone prefixes in area code 608.
Biggest holders: Mid-plains Tel, TDS Metrocom, Charter / Spectrum. This is the local calling area (rate center) where those prefixes were first assigned.
- Internet / business phone carrier 12%
- Phone company 88%
Every prefix in Middleton
Search the first six digits of a number in this list. If it's here, the number started in Middleton with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 608-203 | TDS Metrocom | Phone company | – |
| 608-410 | Mid-plains Tel | Phone company | 2004 |
| 608-662 | TDS Metrocom | Phone company | – |
| 608-664 | TDS Metrocom | Phone company | – |
| 608-820 | Charter / Spectrum | Internet / business phone carrier | – |
| 608-821 | Mid-plains Tel | Phone company | – |
| 608-824 | Mid-plains Tel | Phone company | – |
| 608-826 | Mid-plains Tel | Phone company | – |
| 608-827 | Mid-plains Tel | Phone company | – |
| 608-828 | Mid-plains Tel | Phone company | – |
| 608-829 | Mid-plains Tel | Phone company | – |
| 608-830 | Mid-plains Tel | Phone company | 2005 |
| 608-831 | Mid-plains Tel | Phone company | – |
| 608-833 | Mid-plains Tel | Phone company | – |
| 608-836 | Mid-plains Tel | Phone company | – |
| 608-841 | Onvoy | Internet / business phone carrier | – |
| 608-858 | Mid-plains Tel | Phone company | 2011 |
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.