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 136.18.18.0 against spamcop. Not listed (NotExistentDomain). 39ms
046
+045
Checking 136.18.18.0 against Spamhaus ZEN. Listed! Return code '127.0.0.11'. 44ms
073
+028
Checking 136.18.18.0 against Barracuda Central. Not listed (NotExistentDomain). 27ms
083
+000
Checking 136.18.18.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 82ms
116
+000
Checking 136.18.18.0 against SURBL (multi). Not listed (NotExistentDomain). 115ms
125
+052
Checking 136.18.18.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 51ms
147
+064
Checking 136.18.18.0 against GBUdb. Not listed (NotExistentDomain). 64ms
149
+033
Checking 136.18.18.0 against SORBS. Not listed (NotExistentDomain). 33ms
184
+059
Checking 136.18.18.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 59ms
248
+099
Checking 136.18.18.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 98ms
398
+357
Checking 136.18.18.0 against Spamrats!. Error: ServerFailure. 357ms
398
+214
Done
398
+000
11 DNSBL's checked in 397ms.
398
+000
ERROuch - 136.18.18.0 is blacklisted! One or more DNSBL's has blacklisted 136.18.18.0. Review the details below.
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