Use our free Wisconsin reverse phone lookup service to search any cell/mobile, landline, or VoIP number. Check whether an unknown number has been reported for making spam or robocalls in 421,102 Do Not Call and robocall complaints reported to FTC from Wisconsin.
Milwaukee uses 414/263, Madison operates 608, Green Bay has 920, northern regions use 715/534. The table below maps codes to cities.
Wisconsin has approximately 7.6 million active phone numbers. Cell phones are the most popular type with around 6.2 million users, while traditional landlines continue to decline, accounting for approximately 368,000 connections. Internet phone services account for about 1 million numbers.
In September 2026, Wisconsin residents filed 4,177 complaints to the FTC about phone numbers making unwanted calls and text messages, up 0% from the previous month.
Wisconsin phone numbers recently reported for making unwanted sales calls or robocalls:
| Phone Number | FTC Complaints | Last Reported |
|---|---|---|
| (920) 772-4433 | ||
| (262) 304-8719 | ||
| (262) 439-0785 | ||
| (608) 391-2915 | ||
| (534) 212-9531 | ||
| (608) 814-3740 | ||
| (608) 820-3287 | ||
| (715) 447-3656 | ||
| (608) 544-9620 | ||
| (920) 969-0005 |
Look up phone numbers and browse the phone directory for the largest cities in Wisconsin.
If a caller claims to be from a government office in Wisconsin, or you need an official number, this government directory lets you check it at the source.
The Wisconsin state employee directory offers three searches: by name, by phone number and by email address. If you're unsure how a last name is spelled, enter its first three or four letters to get an alphabetical list.
The phone search works as a reverse lookup. Enter the number of a caller who says they're from a state agency to check whether it is listed to a state employee. Questions about the directory go to [email protected], and the page links to separate directories for the court system, the Legislature and the University of Wisconsin.
Yes. Wisconsin has no comprehensive consumer data privacy law. Residents have no state-level right to opt out of, access, or delete their information from lookup databases. Federal FCRA rules apply: misusing lookup results for employment, tenant, or credit screening is prohibited in Wisconsin as in every state.
Wisconsin doesn't have a privacy law, but you can still ask to be deleted from reverse phone directory sites. Look for opt-out forms on their privacy pages or contact support to request removal.
A phone number linked to a business name does not always mean the call is genuine. According to U.S. Census data, there are over 144,443 business establishments in Wisconsin. To confirm a specific company exists, search the Wisconsin Corporate Records Search, the state’s official business entity registry.
Wisconsin has 6.2 million mobile subscriptions, 1 million VoIP numbers, and 368,000 landlines.