Every name.
A world behind it.

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


#
# Query terms are ambiguous.  The query is assumed to be:
#     "n 233.57.141.216"
#
# Use "?" to get help.
#

NetRange:       224.0.0.0 - 239.255.255.255
CIDR:           224.0.0.0/4
NetName:        MCAST-NET
NetHandle:      NET-224-0-0-0-1
Parent:          ()
NetType:        IANA Special Use
OriginAS:       
Organization:   Internet Assigned Numbers Authority (IANA)
RegDate:        1991-05-22
Updated:        2024-05-24
Comment:        Addresses starting with a number between 224 and 239 are used for IP multicast.  IP multicast is a technology for efficiently sending the same content to multiple destinations.  It is commonly used for distributing financial information and video streams, among other things.
Comment:        
Comment:        A full list of IPv4 multicast assignments can be found at:
Comment:        
Comment:        http://www.iana.org/assignments/multicast-addresses
Comment:        
Comment:        A document describing the policies for assigning multicast addresses can be found at:
Comment:        http://datatracker.ietf.org/doc/rfc5771
Ref:            https://rdap.arin.net/registry/ip/224.0.0.0



OrgName:        Internet Assigned Numbers Authority
OrgId:          IANA
Address:        12025 Waterfront Drive
Address:        Suite 300
City:           Los Angeles
StateProv:      CA
PostalCode:     90292
Country:        US
RegDate:        
Updated:        2024-05-24
Ref:            https://rdap.arin.net/registry/entity/IANA


OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName:   ICANN
OrgAbusePhone:  +1-310-301-5820 
OrgAbuseEmail:  abuse@iana.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IANA-IP-ARIN

OrgTechHandle: IANA-IP-ARIN
OrgTechName:   ICANN
OrgTechPhone:  +1-310-301-5820 
OrgTechEmail:  abuse@iana.org
OrgTechRef:    https://rdap.arin.net/registry/entity/IANA-IP-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#