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CoStar Group Customer Service

Phone Number & Contact Info

CoStar Group's Best Phone Number

800-613-1303
Toll-freeCalls US & Canada Customer ServiceMost popular CoStar Group number

How do I talk to a live human at CoStar Group?

Does CoStar Group offer 24 hour customer service?

Not at this number; hours here are Mon-Fri 730am-8pm ET. The least busy day is Friday, and the most busy day is Tuesday.

How long will I wait on hold?

The average hold time is 4 minutes. The longest hold times are on Tuesday, and the shortest are on Monday. How is this calculated?

CoStar Group Customer Phone Numbers

UK Customer Service

Mon-Fri 8am-6pm ET
+44 20 3205 4500

US & Canada Sales

Mon-Fri 8am-6pm ET
888-226-7404
Toll-free

Corporate Offices

24 hours, 7 days
800-204-5960
Toll-free

What are the hours and when should I call?

CoStar Group operates the call center for this 800-613-1303 phone number Mon-Fri 730am-8pm ET.  The short answer is that you should call on a Friday. This observation and the following section are based on analysis of a sample set of 4,890 calls made in the last 90 days using our free, web-based phone (see above).
An important note: busy times vs hold times vs best time to call
When we refer to busy or less busy times, we are talking about the volume of calls. The busiest times are when the most people are calling this CoStar Group phone number (least busy times have fewer people calling). This high call volume does not necessarily mean that you will have a long hold time when you call. Companies like CoStar Group staff their call centers differently based on the time of day and day of the week, so you may experience a shorter wait on hold at the busiest of times. When we refer to the best time to call, we are referring to the optimal combination of lower call volume and shorter wait times.

The least busy time to call

The least busy day to call CoStar Group is Friday. The most busy day to call is Tuesday. Again, this is based on a sample of 4,890 calls made with our AI-powered, web-based phone in the last 90 days.

The shortest wait on hold

We measured the shortest hold times to be on Monday. The longest wait in the queue on average occurs on Tuesday. 

The best time to call CoStar Group

In summation, the best day to call CoStar Group is Friday.  This is not the day with the shortest wait on hold in the phone system, but we still recommend it for its ideal combination of low call volume and short hold times. Plus we believe that CoStar Group staffs the call center well on Friday.

More CoStar Group Customer Service Contacts

There are of course other ways to contact CoStar Group customer service besides the phone. Below we list the best ones, by medium.

CoStar Group Customer Email Addresses

Corresponding with a customer service department by email may not be your first choice, especially if your issue is urgent or time-sensitive. But email is a nearly ubiquitous form of communication, and CoStar Group will reply our your email.

CoStar Group Customer Service on Facebook / Messenger

Some customer service teams, like that of CoStar Group, accept inquiries through Facebook Messenger. This is a good option if you have a Facebook account, and you may even be able to converse live with an agent this way.

Conclusion and closing notes

This is CoStar Group's best phone number, the real-time current wait on hold and tools for skipping right through those phone lines to get right to a CoStar Group agent. This phone number is CoStar Group's best phone number because 29,338 customers like you used this contact information over the last 18 months and gave us feedback. Common problems addressed by the customer care unit that answers calls to +18006131303 include and other customer service issues. Rather than trying to call CoStar Group first, consider describing your issue first; from that we may be able to recommend an optimal way to contact them via phone or email or facebook. In total, CoStar Group has 4 phone numbers. It's not always clear what is the best way to talk to CoStar Group representatives, so we started compiling this information built from suggestions from the customer community. Please keep sharing your experiences so we can continue to improve this free resource.

GetHuman does not provide call center services or customer support operations for CoStar Group. The two organizations are not related. GetHuman builds free tools, researches information, and shares tips and tricks from other consumers to help customers of companies like CoStar Group. That can include tools such as our GetHuman Phone, which allows you to call a company but skip the part where you wait on the line to get a live human rep, or talk to a company's customer service operation for you. GetHuman believes that this fills an important gap between fragmented support models, makes the customer care experience more uniform, and even answers questions that businesses and agencies are reluctant to answer (but shouldn't be) - making the customer experience less confusing for all. We continue to work on these tools to help customers like you (and ourselves!) navigate the messy phone menus, hold times, and confusion with customer service. As long as you keep sharing it with others, we'll keep improving it.

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