Newer home phones make it easy to block 800 or 888 numbers. This number just called me, it rang once, then was automatically blocked so could not leave a message on my machine. It was blocked because I previously blocked it, immediately after they called last time, buy clicking Save on my phone, then Call Block.  

When the phone rang just now and was blocked, I was curious about who it was from, so typed in the number in online search to find out, and hit this page. I do have an account with Register.com but do not want sales calls.

Please stop calling without leaving a voicemail.

yup. register.com... i just purchased a couple domains from them, and now they are calling me like 3-5 times a day! i was ignoring it until i found out who it was lol

Since posting this, I have gotten an additional 6 calls with no message left.

This 855- caller is relentless. They call at all times of the day and night and never leave a message.  I send the call straight to voice mail but they never leave a message.  By the above post I see that it is coming from Register.com. I have multiple web accounts with them so I may use the "switching" to GoDaddy.com if they persist.

This number has shown up on my cell phone more than 10 times.  Nobody there when I pick up.  Clearly an automated call system which is not legal if I am on the do not call and bother me list.

I have gotten 9 calls from this number and 9 calls from 1-855-881-6939 and 9 calls from 1-855-881-9252 at all hours of the day for the past three months, often calling multiple times a day and multiple times a week. Just because I put my phone number in a required field for domain registration does not mean that I wish to be harrassed.

855-881-6938 is Register.com, I do own a couple websites through them, but holy crap these guys are calling me twice a day!!   Errrrrrggg!

Register dot com...  and if they keep calling, just tell them if they continue, you will transfer all of your domains to GoDaddy and that you'll blame Him/Her for it!  After about 20 times, it will finally stick.  Maybe it was 30 times ;^)

It's from Register.com. They call every day this past week but don't leave a message. I've heard they are trying to sell web design services (I have a few domains through them). Annoying...but they can just keep reaching my voice mail.

They called me, I answered with my name and then they just laughed and hung up.

It's Register.com. They call, wait till you answer, and if you don't talk again, they hang up. I had just bought a domain and they will try to sell you all their other products. They are a legitimate company.

Received a call from 855-881-6938. According to whitepages.com's reverse phone lookup, it isn't a valid number.

If it was from Register.com, as noted by Eric, above, it follows that they didn't leave a message. In the recent past, they have called me in regard to helping me build a web site for the domain I registered through them. I told 'em to bug off (I used better language than that. Okay, okay, I used just a little better language than that).

Register.com