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 103.73.187.0 against Barracuda Central. Not listed (NotExistentDomain). 16ms
045
+000
Checking 103.73.187.0 against spamcop. Not listed (NotExistentDomain). 44ms
053
+000
Checking 103.73.187.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 50ms
065
+064
Checking 103.73.187.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 64ms
095
+000
Checking 103.73.187.0 against GBUdb. Not listed (NotExistentDomain). 92ms
102
+000
Checking 103.73.187.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 98ms
105
+000
Checking 103.73.187.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 103ms
188
+000
Checking 103.73.187.0 against SURBL (multi). Not listed (NotExistentDomain). 187ms
252
+000
Checking 103.73.187.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 250ms
778
+000
Checking 103.73.187.0 against SORBS. Not listed (NotExistentDomain). 775ms
840
+000
Checking 103.73.187.0 against Spamrats!. Error: ServerFailure. 837ms
840
+775
Done
840
+000
11 DNSBL's checked in 839ms.
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