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 15.177.81.0 against SURBL (multi). Not listed (NotExistentDomain). 37ms
039
+000
Checking 15.177.81.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 38ms
039
+000
Checking 15.177.81.0 against SORBS. Not listed (NotExistentDomain). 37ms
043
+000
Checking 15.177.81.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 41ms
046
+046
Checking 15.177.81.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 45ms
059
+000
Checking 15.177.81.0 against GBUdb. Not listed (NotExistentDomain). 56ms
060
+000
Checking 15.177.81.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 57ms
060
+000
Checking 15.177.81.0 against spamcop. Not listed (NotExistentDomain). 59ms
077
+000
Checking 15.177.81.0 against Barracuda Central. Not listed (NotExistentDomain). 75ms
150
+000
Checking 15.177.81.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 148ms
228
+000
Checking 15.177.81.0 against Spamrats!. Error: ServerFailure. 226ms
229
+182
Done
229
+000
11 DNSBL's checked in 228ms.
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