You may perform this lookup using the API and get the results as easy-to-parse JSON data.
Read more on the API at https://iamroot.tech/about/api (regarding authentication and rate limits, among other things), or give it a go right away using the 'try it' button.
Checking 18.66.216.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 47ms
051
+000
Checking 18.66.216.0 against SURBL (multi). Not listed (NotExistentDomain). 50ms
055
+000
Checking 18.66.216.0 against spamcop. Not listed (NotExistentDomain). 53ms
068
+000
Checking 18.66.216.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 67ms
093
+045
Checking 18.66.216.0 against Barracuda Central. Not listed (NotExistentDomain). 45ms
104
+053
Checking 18.66.216.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 52ms
120
+000
Checking 18.66.216.0 against SORBS. Not listed (NotExistentDomain). 118ms
120
+066
Checking 18.66.216.0 against Spamrats!. Not listed (NotExistentDomain). 65ms
126
+058
Checking 18.66.216.0 against GBUdb. Not listed (NotExistentDomain). 57ms
193
+100
Checking 18.66.216.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 99ms
203
+099
Checking 18.66.216.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 99ms
203
+010
Done
203
+000
11 DNSBL's checked in 202ms.
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