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 65.8.44.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 9ms
027
+000
Checking 65.8.44.0 against Barracuda Central. Not listed (NotExistentDomain). 25ms
043
+000
Checking 65.8.44.0 against spamcop. Not listed (NotExistentDomain). 42ms
045
+000
Checking 65.8.44.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 43ms
051
+000
Checking 65.8.44.0 against SORBS. Not listed (NotExistentDomain). 49ms
080
+000
Checking 65.8.44.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 78ms
101
+000
Checking 65.8.44.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 98ms
102
+000
Checking 65.8.44.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 100ms
121
+000
Checking 65.8.44.0 against SURBL (multi). Not listed (NotExistentDomain). 120ms
232
+000
Checking 65.8.44.0 against GBUdb. Not listed (NotExistentDomain). 229ms
333
+000
Checking 65.8.44.0 against Spamrats!. Error: ServerFailure. 331ms
334
+323
Done
334
+000
11 DNSBL's checked in 333ms.
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