Spamcop says:
Removing old cache entries.
Tracking details
Display data:
"whois 133.237.16.234@whois.arin.net" (Getting contact from whois.arin.net )
Found AbuseEmail in whois search-apnic-not-arin@apnic.net
133.0.0.0 - 133.255.255.255:search-apnic-not-arin@apnic.net Routing details for 133.237.16.234
I refuse to bother search-apnic-not-arin@apnic.net.
Using search-apnic-not-arin#apnic.net@devnull.spamcop.net for statistical tracking.
Using last resort contacts search-apnic-not-arin#apnic.net@devnull.spamcop.net
This is wrong and arin is right, Spamcop should search apnic:
$ whois 133.237.16.234
% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object
refer: whois.apnic.net
inetnum: 133.0.0.0 - 133.255.255.255
organisation: Administered by APNIC
status: LEGACY
whois: whois.apnic.net
changed: 1997-03
source: IANA
# whois.apnic.net
...
% Information related to '133.237.0.0 - 133.237.255.255'
inetnum: 133.237.0.0 - 133.237.255.255
netname: RAKUTEN-NET
descr: Rakuten,Inc.
country: JP
admin-c: JP00179607
tech-c: JP00179607
remarks: This information has been partially mirrored by APNIC from
remarks: JPNIC. To obtain more specific information, please use the
remarks: JPNIC WHOIS Gateway at
remarks: http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks: whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks: defaults to Japanese output, use the /e switch for English
remarks: output)
last-modified: 2020-04-28T04:41:03Z
source: JPNIC
% This query was served by the APNIC Whois Service version 1.88.15-SNAPSHOT (WHOIS-UK4)