WHOIS Results for：104.21.28.206
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to \'0.0.0.0 - 255.255.255.255\'

% No abuse contact registered for 0.0.0.0 - 255.255.255.255

inetnum: 0.0.0.0 - 255.255.255.255
netname: IANA-BLOCK
descr: General placeholder reference for all IPv4 addresses
remarks: ------------------------------------------------------
remarks:
remarks: Important:
remarks:
remarks: This registration object does not contain
remarks: specific registration details.
remarks:
remarks: This registration object is used only as a
remarks: general placeholder for all IPv4 addresses
remarks: and may include:
remarks:
remarks: - reserved address ranges
remarks: - private use ranges
remarks: - multicast ranges
remarks: - address ranges administered by RIRs (Regional
remarks: Internet Registries)
remarks:
remarks: If your query does not return an address range
remarks: more specific than 0.0.0.0 - 255.255.255.255, it
remarks: means the address is not administered by any RIR.
remarks: For more specific information on the use of this
remarks: IPv4 address space, see the Internet Assigned
remarks: Numbers Authority (IANA) website at:
remarks:
remarks: http://www.iana.org
remarks:
remarks: ------------------------------------------------------
country: AU
admin-c: IANA1-AP
tech-c: IANA1-AP
mnt-by: MAINT-APNIC-AP
mnt-lower: MAINT-APNIC-AP
status: ALLOCATED PORTABLE
last-modified: 2008-09-04T06:51:49Z
source: APNIC

role: Internet Assigned Numbers Authority
address: see http://www.iana.org.
admin-c: IANA1-AP
tech-c: IANA1-AP
nic-hdl: IANA1-AP
remarks: For more information on IANA services
remarks: go to IANA web site at http://www.iana.org.
mnt-by: MAINT-APNIC-AP
last-modified: 2018-06-22T22:34:30Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU3)