All information based on public registration data as of: [B]Feb. 8, 2013[/B].

[B]K3: 23.0.0.0/12[/B]
    NetRange:       23.20.0.0 - 23.23.255.255
    CIDR:           23.20.0.0/14
    OriginAS:       AS16509
    NetName:        AMAZON-EC2-USEAST-10
    RegDate:        2011-09-19
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZO-4

[B]K3: 50.16.0.0/14[/B]
    NetRange:       50.16.0.0 - 50.19.255.255
    CIDR:           50.16.0.0/14
    OriginAS:       
    NetName:        AMAZON-EC2-8
    RegDate:        2010-10-07
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZO-4

[B]K3: 72.21.192.0/19[/B]
    NetRange:       72.21.192.0 - 72.21.223.255
    CIDR:           72.21.192.0/19
    OriginAS:       
    NetName:        AMAZON-02
    RegDate:        2004-12-30
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZON-4

[B]K3: 107.20.0.0/14[/B]
    NetRange:       107.20.0.0 - 107.23.255.255
    CIDR:           107.20.0.0/14
    OriginAS:       
    NetName:        AMAZON-EC2-8
    RegDate:        2011-05-03
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZO-4

[B]K3: 184.72.0.0/15[/B]
    NetRange:       184.72.0.0 - 184.73.255.255
    CIDR:           184.72.0.0/15
    OriginAS:       
    NetName:        AMAZON-EC2-7
    RegDate:        2010-01-26
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZO-4

[B]K3: 204.246.160.0/19[/B]
    NetRange:       204.246.160.0 - 204.246.191.255
    CIDR:           204.246.160.0/19
    OriginAS:       AS7224, AS16509, AS39111
    NetName:        AMAZON-04
    RegDate:        2009-07-17
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZON-4

[B]K3: 205.251.192.0/18[/B]
    NetRange:       205.251.192.0 - 205.251.255.255
    CIDR:           205.251.192.0/18
    OriginAS:       AS7224, AS16509, AS39111
    NetName:        AMAZON-05
    RegDate:        2010-08-27
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZON-4

[B]K3: 207.171.160.0/19[/B]
    NetRange:       207.171.160.0 - 207.171.191.255
    CIDR:           207.171.160.0/19
    OriginAS:       AS16509
    NetName:        AMAZON-01
    RegDate:        1999-09-23
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZON-4

[B]Kpw: 23.20.0.0/14[/B]
    NetRange:       23.20.0.0 - 23.23.255.255
    CIDR:           23.20.0.0/14
    OriginAS:       AS16509
    NetName:        AMAZON-EC2-USEAST-10
    RegDate:        2011-09-19
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZO-4

[B]Kpw: 54.240.0.0/12[/B]
[B]Kpw: 54.240.128.0/18[/B]  ** If wanting to screen the sub-net **
    Amazon Technologies Inc. AMAZON-2011L (NET-54-240-0-0-1) 54.240.0.0 - 54.255.255.255
    Amazon Web Services, LLC AWSEMAIL-Z (NET-54-240-0-0-2) 54.240.0.0 - 54.240.63.255

[B]Kpw: 64.208.0.0/16[/B]
[B]Kpw: 64.209.0.0/17[/B]
    NetRange:       64.208.0.0 - 64.209.127.255
    CIDR:           64.208.0.0/16, 64.209.0.0/17
    OriginAS:       AS3549
    RegDate:        2000-03-15
    Updated:        2012-03-02
    OrgName:        Level 3 Communications, Inc.
    OrgId:          LVLT

[B]Kpw: 72.21.192.0/19[/B]
    NetRange:       72.21.192.0 - 72.21.223.255
    CIDR:           72.21.192.0/19
    OriginAS:       
    NetName:        AMAZON-02
    RegDate:        2004-12-30
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZON-4

[B]Kpw: 176.32.96.0/21[/B]
    inetnum:        176.32.96.0 - 176.32.103.255
    netname:        amazon-EU-IAD-PROD
    descr:          PROD IAD
    country:        NL

[B]Kpw: 178.236.0.0/21[/B]
    inetnum:        178.236.0.0 - 178.236.7.255
    netname:        IE-AMAZON
    descr:          Amazon Data Services Ireland
    country:        IE

[B]Kpw: 205.251.192.0/18[/B]
    NetRange:       205.251.192.0 - 205.251.255.255
    CIDR:           205.251.192.0/18
    OriginAS:       AS7224, AS16509, AS39111
    NetName:        AMAZON-05
    RegDate:        2010-08-27
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZON-4

[B]Kpw: 207.171.160.0/19[/B]
    NetRange:       207.171.160.0 - 207.171.191.255
    CIDR:           207.171.160.0/19
    OriginAS:       AS16509
    NetName:        AMAZON-01
    RegDate:        1999-09-23
    Updated:        2012-03-02
    OrgName:        Amazon.com, Inc.
    OrgId:          AMAZON-4
