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 216.137.63.0 against SURBL (multi). Not listed (NotExistentDomain). 19ms
030
+000
Checking 216.137.63.0 against Barracuda Central. Not listed (NotExistentDomain). 28ms
031
+030
Checking 216.137.63.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 29ms
045
+000
Checking 216.137.63.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 42ms
061
+000
Checking 216.137.63.0 against spamcop. Not listed (NotExistentDomain). 60ms
098
+000
Checking 216.137.63.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 96ms
102
+000
Checking 216.137.63.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 99ms
107
+000
Checking 216.137.63.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 105ms
189
+000
Checking 216.137.63.0 against GBUdb. Not listed (NotExistentDomain). 186ms
624
+000
Checking 216.137.63.0 against Spamrats!. Error: ServerFailure. 622ms
2.032
+000
Checking 216.137.63.0 against SORBS. Timeout. 2.030ms
2.032
+2.001
Done
2.032
+000
11 DNSBL's checked in 2.031ms.
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