I wouldn't worry about it too much.
I pinged 216.86.156.91 and it comes back as inoperative.
I put it in
www.dnsstuff.com and they say that it's in Chicago:
IP address: 216.86.156.91
Reverse DNS: 91.216-86-156.nozonenet.com.
Reverse DNS authenticity: [Could be forged: hostname 91.216-86-156.nozonenet.com. does not exist]
ASN: 32748
ASN Name: STEADFAST
IP range connectivity: 1
Registrar (per ASN): ARIN
Country (per IP registrar): US [United States]
Country Currency: USD [United States Dollars]
Country IP Range: 216.86.128.0 to 216.86.191.255
Country fraud profile: Normal
City (per outside source): Chicago, Illinois
Country (per outside source): US [United States]
Private (internal) IP? No
IP address registrar: whois.arin.net
Known Proxy? No
Link for WHOIS: 216.86.156.91
Putting
www.nozonenet.com into a browser window brings up
http://steadfast.net, a webhost site.