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 100.20.0.0 against SORBS. Not listed (NotExistentDomain). 27ms
047
+000
Checking 100.20.0.0 against spamcop. Not listed (NotExistentDomain). 46ms
052
+051
Checking 100.20.0.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 50ms
061
+000
Checking 100.20.0.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 58ms
101
+000
Checking 100.20.0.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 100ms
102
+000
Checking 100.20.0.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 99ms
112
+000
Checking 100.20.0.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 110ms
120
+000
Checking 100.20.0.0 against SURBL (multi). Not listed (NotExistentDomain). 119ms
148
+000
Checking 100.20.0.0 against Barracuda Central. Not listed (NotExistentDomain). 145ms
162
+000
Checking 100.20.0.0 against GBUdb. Not listed (NotExistentDomain). 159ms
578
+000
Checking 100.20.0.0 against Spamrats!. Error: ServerFailure. 576ms
578
+527
Done
578
+000
11 DNSBL's checked in 577ms.
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