Sex offender lookup and zip code. Alleged violations of law by registrants under Maryland's program should be reported to any local law enforcement unit. 22.05.201822.05.2018 As of January 1, the Maryland Sex Offender Registry Unit has established a fee for a printed copy of the registry. Statewide Criminal. Provides direct help with questions about child sexual abuse. Federal Criminal. Mortgage Investors Group. Nationwide Criminal. Reviewing a social security number trace report will show the areas where you subject has resided as well as the associated counties. School Zone Lookup for Knox County.