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 18.244.172.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 19ms
022
+000
Checking 18.244.172.0 against SURBL (multi). Not listed (NotExistentDomain). 20ms
047
+000
Checking 18.244.172.0 against spamcop. Not listed (NotExistentDomain). 45ms
064
+042
Checking 18.244.172.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 42ms
070
+049
Checking 18.244.172.0 against Barracuda Central. Not listed (NotExistentDomain). 49ms
106
+035
Checking 18.244.172.0 against SORBS. Not listed (NotExistentDomain). 35ms
112
+000
Checking 18.244.172.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 110ms
121
+057
Checking 18.244.172.0 against GBUdb. Not listed (NotExistentDomain). 56ms
161
+055
Checking 18.244.172.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 55ms
169
+057
Checking 18.244.172.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 56ms
738
+691
Checking 18.244.172.0 against Spamrats!. Error: ServerFailure. 691ms
738
+577
Done
738
+000
11 DNSBL's checked in 737ms.
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