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 18.34.48.0 against Spamhaus ZEN. Listed! Return code '127.0.0.11'. 31ms
037
+000
Checking 18.34.48.0 against SORBS. Not listed (NotExistentDomain). 35ms
042
+000
Checking 18.34.48.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 41ms
046
+000
Checking 18.34.48.0 against Spamrats!. Not listed (NotExistentDomain). 43ms
052
+000
Checking 18.34.48.0 against Barracuda Central. Not listed (NotExistentDomain). 50ms
053
+000
Checking 18.34.48.0 against SURBL (multi). Not listed (NotExistentDomain). 51ms
055
+000
Checking 18.34.48.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 53ms
059
+000
Checking 18.34.48.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 56ms
060
+000
Checking 18.34.48.0 against GBUdb. Not listed (NotExistentDomain). 57ms
067
+000
Checking 18.34.48.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 65ms
4.050
+000
Checking 18.34.48.0 against spamcop. Error: ServerFailure. 4.049ms
4.050
+4.018
Done
4.050
+000
11 DNSBL's checked in 4.049ms.
4.050
+000
ERROuch - 18.34.48.0 is blacklisted! One or more DNSBL's has blacklisted 18.34.48.0. Review the details below.
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