Yes it is Oxford. i accidentally talked them years ago and they were fishing for managers names or other people's names to try to get more contracts. I know of one person who has worked with them briefly, but yes they are one of the pests of a recruiting company. Ask all kinds of questions and they don't have any positions for you. Generally a waste of time

Called yesterday twice looking for 2 different people who didn't answer their phone.  Today I saw the call and didn't answer, and they called 3 times in a row!! ERRR

The company in question is Oxford/Oxford International.  They are a recruiting firm and they call my phone everyday, several times a day, looking for the same people.  
No matter how often I tell them that they will have to stop harassing our employees or be reported, they keep on calling and calling and calling!!!!
VERY ANNOYING!!!!

Tried return a call from this number and no one answers.

returned call with number and no one will answer.

Got call from this number, it is a voice of man, when I tried to talk to him, he hanged up.

Recruiter - utmost unprofessional and not working in the best interest for anyone but his/her own wallet. Calling during business hours when people are working and disrupting them. I wish I would know what company this is to black-list them so that companies stop working with them.

Block this number or ignore their calls -

Headhunter for a network / Telecommunications consulting firm

I get a call from this number every 4-6 days on my cell, they never leave a message and I never answer.  Just going to setup a special ringtone for them that plays silence.