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 18.244.48.0 against SURBL (multi). Not listed (NotExistentDomain). 26ms
034
+033
Checking 18.244.48.0 against Barracuda Central. Not listed (NotExistentDomain). 29ms
037
+000
Checking 18.244.48.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 35ms
050
+000
Checking 18.244.48.0 against spamcop. Not listed (NotExistentDomain). 47ms
050
+000
Checking 18.244.48.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 44ms
066
+000
Checking 18.244.48.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 61ms
086
+000
Checking 18.244.48.0 against SORBS. Not listed (NotExistentDomain). 81ms
109
+000
Checking 18.244.48.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 102ms
167
+000
Checking 18.244.48.0 against GBUdb. Not listed (NotExistentDomain). 160ms
167
+000
Checking 18.244.48.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 162ms
293
+000
Checking 18.244.48.0 against Spamrats!. Error: ServerFailure. 287ms
293
+259
Done
293
+000
11 DNSBL's checked in 291ms.
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