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 74.221.141.0 against SURBL (multi). Not listed (NotExistentDomain). 35ms
038
+000
Checking 74.221.141.0 against SORBS. Not listed (NotExistentDomain). 35ms
044
+000
Checking 74.221.141.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 42ms
049
+000
Checking 74.221.141.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 46ms
051
+000
Checking 74.221.141.0 against Barracuda Central. Not listed (NotExistentDomain). 49ms
060
+000
Checking 74.221.141.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 57ms
060
+000
Checking 74.221.141.0 against GBUdb. Not listed (NotExistentDomain). 57ms
062
+000
Checking 74.221.141.0 against spamcop. Not listed (NotExistentDomain). 60ms
066
+065
Checking 74.221.141.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 64ms
067
+000
Checking 74.221.141.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 65ms
072
+000
Checking 74.221.141.0 against Spamrats!. Not listed (NotExistentDomain). 70ms
072
+007
Done
072
+000
11 DNSBL's checked in 71ms.
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