Interesting ports on visionweb.visionwebservices.com.mx (200.52.66.34):
(The 1526 ports scanned but not shown below are in state: closed)
Port       State       Service
25/tcp     open        smtp                    
53/tcp     open        domain                  
80/tcp     open        http                    
110/tcp    open        pop-3                   
119/tcp    open        nntp                    
135/tcp    open        loc-srv                 
139/tcp    open        netbios-ssn             
143/tcp    open        imap2                   
443/tcp    open        https                   
650/tcp    open        unknown                 
651/tcp    open        unknown                 
5800/tcp   open        vnc                     
5900/tcp   open        vnc                     
7001/tcp   open        afs3-callback           
7002/tcp   open        afs3-prserver           
7100/tcp   open        font-service            

No exact OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi).
TCP/IP fingerprint:
SInfo(V=2.54BETA22%P=i386-unknown-freebsd4.0%D=6/6%Time=3B1DECA7%O=25%C=1)
TSeq(Class=TD%gcd=1%SI=4%IPID=RPI%TS=U)
TSeq(Class=TD%gcd=1%SI=7%IPID=RPI%TS=U)
T1(Resp=Y%DF=Y%W=2017%ACK=S++%Flags=AS%Ops=M)
T2(Resp=Y%DF=N%W=0%ACK=S%Flags=AR%Ops=)
T3(Resp=Y%DF=Y%W=2017%ACK=S++%Flags=AS%Ops=M)
T4(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
T6(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
T7(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
PU(Resp=N)




# Nmap run completed at Wed Jun  6 04:41:11 2001 -- 1 IP address (1 host up) scanned in 25 seconds