The Wisconsin Sex Offender Registry phone number is (608) 240-5830 for local calls and 1-888-963-3363 toll-free.1Mt. Horeb Police Department. Sex Offenders Both lines ring through to the registry’s central office in Madison, which is run by the Wisconsin Department of Corrections. Use either number to look up a registrant, report a change of address, or ask a case-specific question about registration.
Every Way To Reach the Registry
Phone is the quickest route, but the registry accepts contact four ways:
- Local phone: (608) 240-5830
- Toll-free phone: 1-888-963-3363
- Email: docbopadmin@wisconsin.gov
- Mail: Wisconsin Sex Offender Registry, PO Box 7925, Madison, WI 53707-7925
These are confirmed through the Department of Corrections and local law enforcement referral pages.1Mt. Horeb Police Department. Sex Offenders
Victim Notification Has a Separate Number
If your question is about victim notification rather than general registry information, call the Department of Corrections Office of Victim Services and Programs. That office has its own lines: (608) 240-5888 local and 1-800-947-5777 toll-free.2Wisconsin Department of Corrections. Office of Victim Services and Programs It handles alerts about changes in a registrant’s custody status, release dates, and location. Calling the main registry line for a notification question will usually mean a transfer, so starting with the right office saves a step.
When the Phones Are Staffed
The registry phone lines operate during standard state business hours on weekdays. If you hit voicemail or an automated system during a high-volume period, email is a reliable alternative for anything that is not time-sensitive. For a registrant whose reporting deadline is running out, phone is still the better choice, because voicemail timestamps and email queues are not substitutes for an actual update to the record.
What To Have Ready Before You Call
Members of the public looking up a specific person should have that person’s full legal name ready and, if possible, their date of birth. The more identifying detail you can offer, the faster staff can pull the correct record, which matters especially when the name is common.
Registrants calling to update their information should have their Department of Corrections case number or state identification number on hand, plus the specific details that have changed. That typically means a new address, a new employer’s name and address, a new school, or new online accounts such as email addresses, usernames, or social media profiles. Working from a written checklist before dialing helps make sure nothing gets left out of the update, which matters because a missed reporting item can carry felony consequences under Wis. Stat. 301.45.3Wisconsin State Legislature. Wisconsin Code 301.45 – Sex Offender Registration
If you are unsure how long you are required to remain on the registry, that is a question for the registry directly rather than something a general reference can answer, because the end date depends on the underlying offense and supervision history. The phone lines are the right place to get a case-specific answer.4Wisconsin Department of Corrections. Wisconsin Resources
You Can Look Up a Registrant Without Calling
If all you need is to check whether a particular person is registered, you do not need to call at all. The Department of Corrections runs a free public search tool at appsdoc.wi.gov/public with two options: a name search and a geographical search for registrants in a given area.5Wisconsin Department of Corrections. Wisconsin Department of Corrections Sex Offender Registry The registry has operated since June 1997 under Wisconsin Act 440 and covers individuals convicted of offenses defined in Wis. Stat. 301.45 and 301.46.
For a person who may be registered in another state, the Dru Sjodin National Sex Offender Public Website at nsopw.gov searches Wisconsin and the other 49 states at once.6Dru Sjodin National Sex Offender Public Website. Search Public Sex Offender Registries That is the better starting point when you don’t know which state’s registry would list the person.
Writing or Emailing Instead
For questions that are not urgent, email to docbopadmin@wisconsin.gov or a letter to the PO Box 7925 address in Madison both reach the same office. Written contact is useful when you need a paper trail, when your question is complex enough that a phone conversation would be hard to summarize, or when you simply cannot reach the lines during business hours. Reporting deadlines still run on their statutory clock regardless of which channel you choose, so if you are a registrant with a change to report, do not let an email sit unanswered past the point where a phone call would have closed the loop.