PING AND WHOIS RESULTS FOR OLD AND NEW CSAINQUIRY WEBSITE URLS:

OLD WEBSITE URL (as it appears today anyway):
old site address is listed here: https://www.iicsa.org.uk/sites/default/files/sharing-your-experience.pdf
www.csa-inquiry.independent.gov.uk | ping result is 89.200.139.79
https://apps.db.ripe.net/search/query.html?searchtext=89.200.139.79#resultsAnchor

MEMSET Ltd - RIPE Network Coordination Centre
https://www.ripe.net/membership/indices/data/uk.memset.html
Réseaux IP Européens Network Coordination Centre
MEMSET Ltd. Building 87 Dunsfold Park GU6 8TB Cranleigh UNITED KINGDOM. phone: +441483608010 fax: e-mail: ripe (at) memset (dot) com.
(fascinating https://www.ripe.net/membership/indices/GB.html)

https://www.ripe.net/membership/indices/data/uk.asuk.html
https://www.linkedin.com/company/dedipower-managed-hosting
 Craig Martin
Chief Executive Officer
http://www.bloomberg.com/research/stocks/private/snapshot.asp?privcapid=110016059
DediPower is Pulsant:
Website: http://www.dedipower.com/ redirects to http://www.pulsant.com/
http://www.pulsant.com/company/management-team/
"Mark was Director of Services for Computacenter prior to acquiring Lumison in 2010 as the foundation for creating Pulsant"
Okay, so it's them https://www.google.com/search?q=site%3Awww.pulsant.com+Berkshire&ie=utf-8&oe=utf-8
http://www.companieslist.co.uk/07403360-pulsant-topco-limited
Acquisition of company for Pulsant is Lumison.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
NEW WEBSITE URL:
www.iicsa.org.uk | ping is redirected to iicsa.org.uk.cdn.cloudflare.net result is 104.20.6.39
Tracing route to iicsa.org.uk.cdn.cloudflare.net [104.20.6.39] is registered in ARIN not RIPE. Why? URL is also automatically redirected in a hidden manner - not great but that's the cloud for you.

Trace complete.

Which domain registry do I use to Lookup IP 104.20.6.39 ? It's a UK inquiry, so I would expect the IP address assignment to have been done in Europe. According to IANA the domain is registered with ARIN, which is USA based.
http://www.iana.org/whois?q=104.20.6.39

% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

refer:        whois.arin.net

inetnum:      104.0.0.0 - 104.255.255.255
organisation: ARIN
status:       ALLOCATED

whois:        whois.arin.net

changed:      2011-02
source:       IANA

https://whois.arin.net/rest/org/CLOUD14/nets
CLOUDFLARENET (NET-104-16-0-0-1) 	104.16.0.0 - 104.31.255.255