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 15.221.164.0 against Barracuda Central. Not listed (NotExistentDomain). 18ms
021
+000
Checking 15.221.164.0 against SURBL (multi). Not listed (NotExistentDomain). 19ms
048
+000
Checking 15.221.164.0 against spamcop. Not listed (NotExistentDomain). 46ms
049
+048
Checking 15.221.164.0 against Spamhaus ZEN. Listed! Return code '127.0.0.11'. 47ms
050
+000
Checking 15.221.164.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 46ms
061
+000
Checking 15.221.164.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 58ms
094
+000
Checking 15.221.164.0 against GBUdb. Not listed (NotExistentDomain). 90ms
100
+000
Checking 15.221.164.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 98ms
101
+000
Checking 15.221.164.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 98ms
336
+000
Checking 15.221.164.0 against Spamrats!. Error: ServerFailure. 332ms
608
+000
Checking 15.221.164.0 against SORBS. Not listed (NotExistentDomain). 606ms
609
+560
Done
609
+000
11 DNSBL's checked in 607ms.
609
+000
ERROuch - 15.221.164.0 is blacklisted! One or more DNSBL's has blacklisted 15.221.164.0. Review the details below.
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