Yahoo!
AS10310 (Yahoo!) announces at least 111 prefixes:
27.123.33.0/24
Yahoo-APAC
1970-01-01
APAC
27.123.32.0-27.123.35.255
27.123.34.0/23
27.123.37.0/24
Yahoo APAC
YAHOO-APAC
27.123.36.0-27.123.39.255
27.123.44.0/22
Yahoo-Inc 701 First Avenue
YAHOO-ASIA-10
27.123.32.0-27.123.63.255
27.123.192.0/23
27.123.192.0-27.123.193.255
27.123.196.0/23
Yahoo-AUE
AUE
27.123.196.0-27.123.197.255
66.196.64.0/21
Yahoo Holdings Inc.
NET-66-196-64-0-1
66.196.64.0-66.196.127.255
66.196.70.0/23
66.196.88.0/22
67.195.249.0/24
NET-67-195-0-0-1
67.195.0.0-67.195.255.255
68.142.248.0/24
NET-68-142-192-0-1
68.142.192.0-68.142.255.255
68.142.253.0/24
68.180.128.0/20
NET-68-180-128-0-1
68.180.128.0-68.180.255.255
69.147.64.0/18
NET-69-147-64-0-1
69.147.64.0-69.147.127.255
72.30.220.0/22
NET-72-30-0-0-1
72.30.0.0-72.30.255.255
74.6.224.0/22
NET-74-6-0-0-1
74.6.0.0-74.6.255.255
77.238.168.0/22
Yahoo! Europe
CH-YAHOO
77.238.168.0-77.238.175.255
77.238.172.0/23
77.238.174.0/24
77.238.183.0/24
YAHOONET
77.238.183.0-77.238.183.255
77.238.189.0/24
77.238.188.0-77.238.189.255
87.248.107.0/24
87.248.106.0-87.248.107.255
102.165.180.0/24
Verizon Communications South Africa
Verizon-v4
102.165.180.0-102.165.183.255
102.165.183.0/24
103.40.110.0/23
Brightroll, Inc
BRIGHTROLLINC-AP
103.40.110.0-103.40.111.255
115.178.3.0/24
Yahoo-AUW
AUW
115.178.2.0-115.178.3.255
115.178.4.0/23
115.178.4.0-115.178.5.255
115.178.10.0/23
115.178.10.0-115.178.11.255
115.178.12.0/22
115.178.12.0-115.178.13.255
124.108.64.0/21
124.108.64.0-124.108.71.255
124.108.76.0/23
Internet Content Provider
YAHOO-ASIA-4
124.108.64.0-124.108.95.255
124.108.78.0/23
124.108.80.0/22
124.108.84.0/23
180.222.104.0/21
Yahoo Inc.
YAHOO-AP
180.222.96.0-180.222.111.255
180.222.112.0/21
Yahoo SGB
YAHOO-SGB
180.222.112.0-180.222.112.255
180.233.112.0/21
180.233.112.0-180.233.115.255
183.177.68.0/24
Yahoo-AU
AU
183.177.68.0-183.177.71.255
183.177.69.0/24
183.177.74.0/23
Yahoo-TW1
TW1
183.177.72.0-183.177.75.255
183.177.76.0/22
183.177.76.0-183.177.79.255
183.177.80.0/23
Yahoo-ASIA-BB
ASIA-BB-4
183.177.80.0-183.177.81.255
183.177.84.0/22
183.177.84.0-183.177.87.255
183.177.90.0/23
YAHOO-ASIA-8
183.177.64.0-183.177.95.255
184.165.0.0/20
NET-184-165-0-0-1
184.165.0.0-184.165.255.255
184.165.16.0/20
188.125.88.0/24
UK-YAHOO-20090706
188.125.64.0-188.125.95.255
188.125.89.0/24
188.125.90.0/24
188.125.91.0/24
188.125.93.0/24
188.125.94.0/24
188.125.95.0/24
193.93.196.0/22
YAHOO
193.93.196.0-193.93.199.255
193.93.197.0/24
198.178.157.0/24
NET-198-178-157-0-1
198.178.157.0-198.178.157.255
200.152.160.0/21
IPv4 address block not managed by the RIPE NCC
NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK
200.69.16.0-200.162.143.255
200.152.160.0/24
200.152.161.0/24
200.152.172.0/22
200.152.173.0/24
202.43.202.0/23
202.43.200.0-202.43.207.255
202.43.204.0/22
202.43.216.0/21
202.43.216.0-202.43.223.255
202.43.216.0/24
202.47.143.0/24
YAHOOKOREA
202.47.143.0-202.47.143.255
202.93.6.0/23
202.93.6.0-202.93.7.255
202.160.176.0/20
YAHOO-APAC-BB-1
202.160.176.0-202.160.183.255
202.165.96.0/24
YAHOO-ASIA-2
202.165.96.0-202.165.111.255
202.165.98.0/23
202.165.108.0/23
202.171.234.0/24
202.171.234.0-202.171.234.255
203.84.208.0/23
203.84.208.0-203.84.223.255
203.84.210.0/23
203.84.213.0/24
203.84.214.0/23
203.104.16.0/21
203.104.16.0-203.104.19.255
203.110.236.0/22
Yahoo APAC Corporate Network
YAHOOAPAC
203.110.236.0-203.110.239.255
209.131.48.0/20
NET-209-131-32-0-1
209.131.32.0-209.131.63.255
209.131.50.0/23
209.131.52.0/23
209.191.64.0/20
NET-209-191-64-0-1
209.191.64.0-209.191.127.255
209.191.80.0/21
209.191.112.0/20
212.82.116.0/24
Yahoo! Europe, Geneva, CH
212.82.112.0-212.82.117.255
212.82.118.0/23
212.82.118.0-212.82.119.255
216.115.96.0/20
NET-216-115-96-0-1
216.115.96.0-216.115.111.255
216.115.103.0/24
216.252.96.0/19
NET-216-252-96-0-1
216.252.96.0-216.252.127.255
2001:43f8:1140::/48
verizon-v6
2001:43f8:1140::-2001:43f8:1140:ffff:ffff:ffff:ffff:ffff
2001:43f8:1141::/48
2001:43f8:1141::-2001:43f8:1141:ffff:ffff:ffff:ffff:ffff
2001:4998::/32
NET6-2001-4998-1
2001:4998::-2001:4998:ffff:ffff:ffff:ffff:ffff:ffff
2001:4998:f000::/36
2001:4998:f00e::/48
2406:2000::/32
Yahoo Global Holdings B.V. Taiwan Branch
YAHOOGLOBAL-TW
2406:2000::-2406:2000:ffff:ffff:ffff:ffff:ffff:ffff
2406:2000:f01e::/48
2406:6e00::/32
2406:6e00::-2406:6e00:ffff:ffff:ffff:ffff:ffff:ffff
2406:6e00:f048::/48
2804:1bc::/32
2804:1bc:f026::/48
2804:1bc:f046::/48
2a00:1288::/32
UK-YAHOO-20090819
2a00:1288::-2a00:1288:ffff:ffff:ffff:ffff:ffff:ffff
2a00:1288:f032::/48
2a00:1288:f033::/48
2a00:1288:f035::/48
2a00:1288:f036::/48
2a00:1288:f037::/48
2a00:1288:f03c::/48
2a00:1288:f03d::/48
2a00:1288:f03e::/48
2a03:cd00::/32
US-YAHOO-20110418
2a03:cd00::-2a03:cd00:ffff:ffff:ffff:ffff:ffff:ffff
32
AS5779
YAHOO-DNB
AS7233
YAHOO-US
AS7280
YAHOO-FC
AS10229
YAHOO-TW1
AS10230
YAHOO-SG
AS10310
Yahoo! (AS Path prepending)
AS10880
YAHOO-AN2
AS14196
YAHOO-CHA
AS14776
AS14777
AS14778
AS14779
AS14780
AS16515
ALTAVISTA
AS18293
YAHOO-HK2-AP
AS24506
YAHOOGLOBAL-AS-AP
AS26101
YAHOO-BF1
AS28122
ASN28122
AS34010
YAHOO-IRD
AS36088
YAHOO-BCST-AC2
AS36229
YAHOO-YSM-SC8
AS36646
YAHOO-NE1
AS36647
YAHOO-GQ1
AS36752
YAHOO-SP1
AS38032
AS43428
YAHOO-ULS
AS45501
YAHOO-CORP-SG-AS-AP
AS56173
YAHOO-SG3
AS203070
YAHOO-FRA
AS203219
YAHOO-AMA
AS203220
YAHOO-DEB
AS393245
YAHOO-SWB