Autonomous System details

AS34010

Yahoo-UK Limited · yahoo.com

United Kingdom

Stub AS

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AS34010 – Yahoo-UK Limited

Field	Value
Country	United Kingdom
Website	yahoo.com
Hosted domains	155
IPv4 addresses	33,024
IPv6 addresses	15,716,035,654,990,179,400,000,000
ASN type	Hosting
Registry	ripe
Allocated	22 years ago on Sep 29, 2004
Updated	8 years ago on Sep 04, 2018

Netblock	Company	Num of IPs
46.228.32.0/21	Yahoo-UK Limited	2,048
46.228.40.0/21	Yahoo-UK Limited	2,048
87.248.96.0/21	Yahoo-UK Limited	2,048
87.248.112.0/21	Yahoo! Europe	2,048
87.248.120.0/21	Yahoo! Europe	2,048
188.125.64.0/21	Yahoo! Europe	2,048
188.125.80.0/21	Yahoo! Europe	2,048
212.82.104.0/21	Yahoo! Europe, Dublin, IE	2,048
217.146.176.0/21	Yahoo! Europe	2,048
217.146.184.0/21	Yahoo! Europe	2,048
77.238.160.0/22	Yahoo! Europe	1,024
77.238.176.0/22	Yahoo! Europe	1,024
77.238.184.0/22	Yahoo! Europe	1,024
77.238.188.0/22	Yahoo! Europe	1,024
188.125.72.0/22	Yahoo! Europe	1,024
188.125.76.0/22	Yahoo! Europe	1,024
212.82.96.0/22	Yahoo! Europe	1,024
212.82.100.0/22	Yahoo! Europe	1,024
217.12.4.0/22	Yahoo! Europe	1,024
217.12.8.0/22	Yahoo-UK Limited	1,024
217.12.12.0/22	Yahoo-UK Limited	1,024
87.248.108.0/23	Yahoo! Europe	512
188.125.66.0/23	Yahoo! Europe	512
188.125.68.0/23	Yahoo! Europe	512
217.12.2.0/23	Yahoo! Europe	512
77.238.160.0/24	Yahoo! Europe	256
77.238.161.0/24	Yahoo! Europe	256
77.238.185.0/24	Yahoo! Europe	256
87.248.98.0/24	Yahoo! Europe	256
87.248.100.0/24	Yahoo! Europe	256
87.248.101.0/24	Yahoo! Europe	256
87.248.102.0/24	Yahoo! Europe	256
87.248.103.0/24	Yahoo! Europe	256
87.248.110.0/24	Yahoo! Europe	256
188.125.72.0/24	Yahoo! Europe	256
188.125.73.0/24	Yahoo! Europe	256
188.125.80.0/24	Yahoo! Europe	256
188.125.82.0/24	Yahoo! Europe	256
212.82.100.0/24	Yahoo! Europe	256
212.82.101.0/24	Yahoo! Europe	256
212.82.106.0/24	Yahoo! Europe, Dublin, IE	256
212.82.108.0/24	Yahoo! Europe, Dublin, IE	256
212.82.109.0/24	Yahoo! Europe, Dublin, IE	256
217.12.15.0/24	Yahoo-UK Limited	256
217.146.187.0/24	Yahoo! Europe	256
217.146.190.0/24	Yahoo! Europe	256

Netblock	Company
2a00:1288:110::/46	Yahoo-UK Limited
2a00:1288:1a8::/46	Yahoo-UK Limited
2a00:1288:110::/48	Yahoo-UK Limited
2a00:1288:111::/48	Yahoo-UK Limited
2a00:1288:1a8::/48	Yahoo-UK Limited
2a00:1288:ef6a::/48	Yahoo-UK Limited
2a00:1288:ef98::/48	Yahoo-UK Limited

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WHOIS Details

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                                                ASHandle:       AS34010
                                                OrgID:          AS34010
                                                ASName:         AS34010
                                                ASNumber:       AS34010
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 155 domain names hosted across 16 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
212.82.100.137	██████████	60
87.248.110.227	██████████	4
212.82.100.150	██████████	4
87.248.100.208	██████████	3
87.248.100.136	█████████	2
217.146.187.159	██████████	2
188.125.73.93	██████	1
77.238.178.145	██████████	1
188.125.72.162	██████████	1
217.146.181.52	██████████	1

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Peers

There is 1 peer for this ASN.

Peers	Name
AS10310	Yahoo Holdings Inc.

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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS10310	Yahoo Holdings Inc.

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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

77 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
217.12.4.232	AS34010 Yahoo-UK Limited	`0.24ms` from Dublin, IE
188.125.78.5	AS34010 Yahoo-UK Limited	`0.69ms` from Dublin, IE
188.125.75.129	AS34010 Yahoo-UK Limited	`0.35ms` from Dublin, IE
217.146.176.17	AS34010 Yahoo-UK Limited	`0.29ms` from Dublin, IE
217.146.187.57	AS34010 Yahoo-UK Limited	`0.27ms` from Dublin, IE
87.248.97.165	AS34010 Yahoo-UK Limited	`0.25ms` from Dublin, IE
217.146.179.143	AS34010 Yahoo-UK Limited	`0.39ms` from Dublin, IE
87.248.109.1	AS34010 Yahoo-UK Limited	`0.29ms` from Dublin, IE
87.248.98.69	AS34010 Yahoo-UK Limited	`0.28ms` from Dublin, IE
2a00:1288:111:406::e1	AS34010 Yahoo-UK Limited	`0.23ms` from Dublin, IE
212.82.102.2	AS34010 Yahoo-UK Limited	`0.28ms` from Dublin, IE
46.228.46.2	AS34010 Yahoo-UK Limited	`0.83ms` from Dublin, IE
217.146.178.4	AS34010 Yahoo-UK Limited	`0.94ms` from Dublin, IE
188.125.73.2	AS34010 Yahoo-UK Limited	`0.25ms` from Dublin, IE
188.125.64.6	AS34010 Yahoo-UK Limited	`0.28ms` from Dublin, IE
188.125.80.110	AS34010 Yahoo-UK Limited	`0.46ms` from Dublin, IE
188.125.83.2	AS34010 Yahoo-UK Limited	`0.84ms` from Dublin, IE
188.125.84.3	AS34010 Yahoo-UK Limited	`1.15ms` from Dublin, IE
87.248.103.4	AS34010 Yahoo-UK Limited	`0.29ms` from Dublin, IE
217.12.3.47	AS34010 Yahoo-UK Limited	`0.27ms` from Dublin, IE
212.82.101.33	AS34010 Yahoo-UK Limited	`0.23ms` from Dublin, IE
77.238.176.84	AS34010 Yahoo-UK Limited	`0.24ms` from Dublin, IE
212.82.106.54	AS34010 Yahoo-UK Limited	`0.40ms` from Dublin, IE
188.125.66.2	AS34010 Yahoo-UK Limited	`0.95ms` from Dublin, IE
188.125.82.56	AS34010 Yahoo-UK Limited	`0.37ms` from Dublin, IE

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
2.85.230.138	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`6.92ms` from Athens, GR
68.115.182.90	AS20115 Charter Communications LLC	`4.07ms` from Atlanta, US
75.207.104.234	AS6167 Verizon Business	`18.09ms` from Atlanta, US
99.39.248.234	AS7018 AT&T Enterprises, LLC	`2.09ms` from Atlanta, US
12.252.9.42	AS7018 AT&T Enterprises, LLC	`2.27ms` from Atlanta, US
93.121.168.58	AS21351 Canal + Telecom SAS	`1.34ms` from Baie-Mahault, GP
198.255.170.42	AS11351 Charter Communications Inc	`19.70ms` from Chicago, US
52.162.163.218	AS8075 Microsoft Corporation	`0.50ms` from Chicago, US
20.105.71.234	AS8075 Microsoft Corporation	`0.15ms` from Dublin, IE
91.137.34.218	AS196714 Thueringer Netkom GmbH	`7.35ms` from Frankfurt am Main, DE
117.1.250.202	AS7552 Viettel Group	`1.18ms` from Hanoi, VN
23.222.113.122	AS16625 Akamai Technologies, Inc.	`0.53ms` from Hong Kong, HK
31.167.61.186	AS35819 Etihad Etisalat, a joint stock company	`4.09ms` from Jeddah, SA
80.245.118.202	AS6789 CRELCOM LLC	`6.50ms` from Krasnodar, RU
86.146.254.154	AS2856 British Telecommunications PLC	`6.08ms` from London, GB
79.150.91.250	AS3352 TELEFONICA DE ESPANA S.A.U.	`11.29ms` from Madrid, ES
136.63.15.26	AS16591 Google Fiber Inc.	`1.90ms` from Phoenix, US
131.0.112.42	AS61700 UAI TELECOM COMUNICACAO MULTIMIDIA LTDA	`14.60ms` from Sao Paulo, BR
202.217.176.10	AS4725 SoftBank Corp.	`7.39ms` from Tokyo, JP
204.101.10.250	AS577 Bell Canada	`2.39ms` from Toronto, CA
181.121.70.138	AS23201 Telecel S.A.	`14.32ms` from Asuncion, PY
93.9.129.74	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`12.92ms` from Bordeaux, FR
38.104.250.58	AS174 Cogent Communications, LLC	`0.46ms` from Chicago, US
179.184.14.138	AS18881 TELEFÔNICA BRASIL S.A	`1.37ms` from Curitiba, BR
52.16.0.202	AS16509 Amazon.com, Inc.	`0.36ms` from Dublin, IE

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f3 77.238.178.225

traceroute to 77.238.178.225 (77.238.178.225): 64 hops max, 52 byte packets

3 [AS2128] 185.6.36.77 0.904 ms

4 [AS10310] 66.196.65.19 0.656 ms

5 [AS34010] 77.238.190.2 0.313 ms

6 [AS34010] 217.146.184.195 0.373 ms

7 [AS34010] 217.146.186.21 0.693 ms

8 [AS34010] 217.146.186.5 0.329 ms

9 [AS34010] 217.146.186.20 0.599 ms

10 [AS34010] 217.146.184.204 0.409 ms

11 [AS34010] 77.238.178.225 0.254 ms

Measurement taken from

IPinfo ProbeNet in Dublin, IE

On April 13th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS34010 at robtex.

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