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 18.164.168.0 against Barracuda Central. Not listed (NotExistentDomain). 18ms
025
+000
Checking 18.164.168.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 21ms
042
+000
Checking 18.164.168.0 against spamcop. Not listed (NotExistentDomain). 40ms
052
+051
Checking 18.164.168.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 51ms
056
+000
Checking 18.164.168.0 against SORBS. Not listed (NotExistentDomain). 53ms
094
+000
Checking 18.164.168.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 91ms
104
+000
Checking 18.164.168.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 100ms
162
+000
Checking 18.164.168.0 against GBUdb. Not listed (NotExistentDomain). 158ms
200
+000
Checking 18.164.168.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 198ms
210
+000
Checking 18.164.168.0 against SURBL (multi). Not listed (NotExistentDomain). 208ms
360
+000
Checking 18.164.168.0 against Spamrats!. Error: ServerFailure. 357ms
361
+308
Done
361
+000
11 DNSBL's checked in 359ms.
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