All of Delaware uses area code 302, and our free Delaware phone number lookup covers every number from Wilmington to Dover. Fake process servers and phony SSA arrest warrants are among the most common complaints.
302. That's it. Every Delaware number from Wilmington to Rehoboth Beach starts with the same area code. There's no table to check because there's no variation. When a 302 number calls, you need more than the area code.
Delaware has approximately 1.5 million active phone numbers. Mobile phones account for the majority with 1.18 million users. Traditional landlines are declining, with 54,000 connections statewide. Internet phone services account for about 290,000 numbers.
In September 2026, Delaware residents filed 542 complaints to the FTC about phone numbers making unwanted calls and text messages, down 28% from the previous month.
Delaware phone numbers recently reported for making unwanted sales calls or robocalls:
| Phone Number | FTC Complaints | Last Reported |
|---|---|---|
| (302) 927-3338 | ||
| (302) 927-3338 | ||
| (302) 503-6020 | ||
| (302) 520-5145 | ||
| (302) 726-9137 | ||
| (302) 520-5145 | ||
| (302) 988-7883 | ||
| (302) 927-3338 | ||
| (302) 203-9810 | ||
| (302) 206-5059 |
If a caller claims to be from a government office in Delaware, or you need an official number, this government directory lets you check it at the source.
This Delaware department phone list (PDF) is a plain table of state offices with a phone number for each. Rows are grouped by department and show a department ID, the office or unit name, its phone number and the parent department.
Numbers in it include the Office of the Governor at 302-672-5120, the Attorney General at 302-577-8381, the State Police executive office at 302-739-5900 and the Department of Education at 302-735-4025. Use your PDF viewer's find function (Ctrl+F or Cmd+F) to jump to an office. The file carries no publication date, so confirm a number on the agency's own site before relying on it.
Yes. Delaware does not restrict the personal use of reverse phone lookup services. The state's 2025-effective privacy law gives residents meaningful rights to control their data held by lookup services. The Fair Credit Reporting Act (FCRA) prohibits using lookup results for employment, tenant, credit, or insurance decisions everywhere in the US. Delaware's state law layers additional rights on top.
The Delaware Personal Data Privacy Act (DPDPA, Del. Code tit. 6, §§ 12D-101 et seq.) took effect January 1, 2025. Delaware's law stands out for its broad nonprofit coverage - unlike most state privacy laws that grant blanket nonprofit exemptions, the DPDPA covers nonprofits with only narrow carve-outs, similar in scope to California and Maryland. This matters for lookup services that may operate as or through nonprofit structures.
Delaware residents have 45 days to receive responses to access, correction, deletion, and portability requests. There is no small-business exemption, and the right to correct inaccurate data is included.
Under the Delaware Personal Data Privacy Act (DPDPA), you can opt out of targeted advertising and request deletion of your personal details. Visit each reverse lookup site and use their opt-out form.
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 29,195 business establishments in Delaware. To confirm a specific company exists, search the Delaware Business Entity Search, the state’s official business entity registry.
Delaware has 1.2 million mobile subscriptions, 290,000 VoIP numbers, and 54,000 landlines.