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Old 30th May 2010
J65nko J65nko is offline
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Location: Budel - the Netherlands
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The source/origin addresses:
Code:
$ whois 0.76.46.0

OrgName:    Internet Assigned Numbers Authority
OrgID:      IANA
Address:    4676 Admiralty Way, Suite 330
City:       Marina del Rey
StateProv:  CA
PostalCode: 90292-6695
Country:    US

NetRange:   0.0.0.0 - 0.255.255.255
CIDR:       0.0.0.0/8
NetName:    SPECIAL-IPV4-LOCAL-ID-IANA-RESERVED
NetHandle:  NET-0-0-0-0-1
Parent:
NetType:    IANA Special Use
Comment:    This block is assigned for use as local
Comment:    identification addresses. 0.0.0.0 refers to
Comment:    "this" host on "this" network. 0.0.0.0
Comment:    MUST NOT be sent, except as a source address
Comment:    as part of an initialization procedure
Comment:    by which the host learns its own IP address.
Comment:    This block was assigned by the IETF in the
Comment:    Standard document, RFC 1122, and is
Comment:    further documented in the Best Current
Comment:    Practice document RFC 5735. These documents
Comment:    can be found at:
Comment:    http://www.rfc-editor.org/rfc/rfc1122.txt
Comment:    http://www.rfc-editor.org/rfc/rfc5735.txt
RegDate:
Updated:    2010-04-14

OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName:   Internet Corporation for Assigned Names and Number
OrgAbusePhone:  +1-310-301-5820
OrgAbuseEmail:  abuse@iana.org

OrgTechHandle: IANA-IP-ARIN
OrgTechName:   Internet Corporation for Assigned Names and Number
OrgTechPhone:  +1-310-301-5820
OrgTechEmail:  abuse@iana.org

# ARIN WHOIS database, last updated 2010-05-29 20:00
# Enter ? for additional hints on searching ARIN's WHOIS database.
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at https://www.arin.net/whois_tou.html
The destination addresses 214.x.x.x:
Code:
$ whois 214.26.128.9 

OrgName:    DoD Network Information Center
OrgID:      DNIC
Address:    3990 E. Broad Street
City:       Columbus
StateProv:  OH
PostalCode: 43218
Country:    US

NetRange:   214.0.0.0 - 214.255.255.255
CIDR:       214.0.0.0/8
NetName:    DNIC-NET-214
NetHandle:  NET-214-0-0-0-1
Parent:
NetType:    Direct Allocation
The 229.26.5.11 address:
Code:
$ whois 229.26.5.11

OrgName:    Internet Assigned Numbers Authority
OrgID:      IANA
Address:    4676 Admiralty Way, Suite 330
City:       Marina del Rey
StateProv:  CA
PostalCode: 90292-6695
Country:    US

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
NameServer: FLAG.EP.NET
NameServer: STRUL.STUPI.SE
NameServer: NS.ISI.EDU
NameServer: NIC.NEAR.NET
Comment:    This block is reserved for special purposes.
Comment:    Please see RFC 3171 for additional information.
Comment:
RegDate:    1991-05-22
Updated:    2002-09-16
From http://en.wikipedia.org/wiki/IP_multicast

Quote:
Multicast: A multicast address is associated with a group of interested receivers. According to RFC 3171, addresses 224.0.0.0 to 239.255.255.255, the former Class D addresses, are designated as multicast addresses in IPv4. The sender sends a single datagram (from the sender's unicast address) to the multicast address, and the intermediary routers take care of making copies and sending them to all receivers that have registered their interest in data from that sender.
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