NPA-NXX - 920-230

This is the 920-230 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!

1. Area Codes
2. 920
3. 920-230

The 920-230 subcode mainly covers Oshkosh in Winnebago county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Wisconsin state. Many of the numbers in this subcode are Regular Landline registered to Northern Telephone And Data Corporation. We hear they employ a large number of people in the Wisconsin office.
Recently there have been an increase in reported calls, we've had over 166994 comments across our systems for the 920-230 subcode.