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 206.16.240.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 13ms
024
+000
Checking 206.16.240.0 against SURBL (multi). Not listed (NotExistentDomain). 19ms
042
+000
Checking 206.16.240.0 against Barracuda Central. Not listed (NotExistentDomain). 36ms
048
+000
Checking 206.16.240.0 against spamcop. Not listed (NotExistentDomain). 43ms
056
+000
Checking 206.16.240.0 against SORBS. Not listed (NotExistentDomain). 51ms
060
+000
Checking 206.16.240.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 53ms
100
+000
Checking 206.16.240.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 95ms
109
+000
Checking 206.16.240.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 101ms
132
+000
Checking 206.16.240.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 126ms
237
+000
Checking 206.16.240.0 against GBUdb. Not listed (NotExistentDomain). 229ms
570
+000
Checking 206.16.240.0 against Spamrats!. Error: ServerFailure. 563ms
570
+554
Done
570
+000
11 DNSBL's checked in 567ms.
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