you should use ss that is replacing netstat:
[root@router init.d]# ss -lnp | grep httpd
RTNETLINK answers: Invalid argument
u_str LISTEN 0 100 /var/run/cgisock.3905 21605 * 0 users:(("httpd",pid=3906,fd=4))
tcp LISTEN 0 511 *:445 *:* users:(("httpd",pid=3908,fd=6),("httpd",pid=3905,fd=6))
tcp LISTEN 0 511 *:82 *:* users:(("httpd",pid=3908,fd=4),("httpd",pid=3905,fd=4))
tcp LISTEN 0 511 *:1014 *:* users:(("httpd",pid=3908,fd=8),("httpd",pid=3905,fd=8))