Autonomous System details

AS35228

Telefonica UK Limited · o2.co.uk

United Kingdom

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AS35228 – Telefonica UK Limited

Field	Value
Country	United Kingdom
Website	o2.co.uk
Hosted domains	301
IPv4 addresses	215,296
IPv6 addresses	79,572,706,372,854,506,908,335,210,496
ASN type	ISP
Registry	ripe
Allocated	21 years ago on Jun 27, 2005
Updated	6 years ago on Dec 04, 2019

Netblock	Company	Num of IPs
87.194.0.0/16	Telefonica UK Limited	65,536
93.97.0.0/16	Telefonica UK Limited	65,536
82.132.128.0/17	Telefonica UK Limited	32,768
158.230.0.0/17	Telefonica UK Limited	32,768
46.233.64.0/18	Telefonica UK Limited	16,384
87.194.0.0/19	Telefonica UK Limited	8,192
46.233.96.0/21	Telefonica UK Limited	2,048
93.97.240.0/21	Telefonica UK Limited	2,048
82.132.184.0/22	O2 Online (UK)	1,024
82.132.212.0/22	02 Online (uk)	1,024
82.132.216.0/22	02 Online (uk)	1,024
82.132.220.0/22	02 Online (uk)	1,024
82.132.228.0/22	02 Online (uk)	1,024
82.132.232.0/22	02 Online (uk)	1,024
82.132.236.0/22	02 Online (uk)	1,024
82.132.244.0/22	02 Online (uk)	1,024
87.194.100.0/22	Telefonica UK Limited	1,024
87.194.104.0/22	Telefonica UK Limited	1,024
93.97.0.0/22	WBMC RC BRAS IP POOL	1,024
93.97.4.0/22	WBMC RC BRAS IP POOL	1,024
93.97.8.0/22	Telefonica UK Limited	1,024
93.97.12.0/22	Telefonica UK Limited	1,024
93.97.16.0/22	Telefonica UK Limited	1,024
93.97.32.0/22	WBMC RC BRAS IP POOL	1,024
93.97.48.0/22	WBMC RC BRAS IP POOL	1,024
93.97.52.0/22	WBMC RC BRAS IP POOL	1,024
93.97.56.0/22	WBMC RC BRAS IP POOL	1,024
93.97.60.0/22	WBMC RC BRAS IP POOL	1,024
93.97.128.0/22	WBMC RC BRAS IP POOL	1,024
93.97.132.0/22	WBMC RC BRAS IP POOL	1,024
93.97.172.0/22	WBMC RC BRAS IP POOL	1,024
93.97.176.0/22	WBMC RC BRAS IP POOL	1,024
93.97.180.0/22	WBMC RC BRAS IP POOL	1,024
93.97.192.0/22	WBMC RC BRAS IP POOL	1,024
93.97.196.0/22	WBMC RC BRAS IP POOL	1,024
93.97.200.0/22	WBMC RC BRAS IP POOL	1,024
93.97.204.0/22	WBMC RC BRAS IP POOL	1,024
93.97.208.0/22	WBMC RC BRAS IP POOL	1,024
93.97.212.0/22	WBMC RC BRAS IP POOL	1,024
93.97.216.0/22	WBMC RC BRAS IP POOL	1,024
93.97.220.0/22	WBMC RC BRAS IP POOL	1,024
158.230.200.0/22	Telefonica UK Limited	1,024
46.233.82.0/23	Telefonica UK Limited	512
46.233.88.0/23	Telefonica UK Limited	512
82.132.138.0/23	O2 Online (UK)	512
82.132.160.0/23	O2 Online (UK)	512
82.132.164.0/23	O2 Online (UK)	512
82.132.166.0/23	O2 Online (UK)	512
82.132.168.0/23	O2 Online (UK)	512
82.132.170.0/23	O2 Online (UK)	512
82.132.172.0/23	O2 Online (UK)	512
82.132.174.0/23	O2 Online (UK)	512
82.132.176.0/23	O2 Online (UK)	512
82.132.180.0/23	O2 Online (UK)	512
82.132.198.0/23	O2 Online (UK) - Test DABs	512
82.132.210.0/23	02 Online (uk)	512
82.132.248.0/23	O2 Online (UK)	512
87.194.26.0/23	Telefonica UK Limited	512
87.194.108.0/23	Telefonica UK Limited	512
87.194.216.0/23	WBMC RC BRAS IP POOL	512
87.194.218.0/23	Telefonica UK Limited	512
87.194.220.0/23	WBMC RC BRAS IP POOL	512
93.97.64.0/23	WBMC RC BRAS IP POOL	512
93.97.66.0/23	WBMC RC BRAS IP POOL	512
93.97.68.0/23	WBMC RC BRAS IP POOL	512
93.97.70.0/23	WBMC RC BRAS IP POOL	512
93.97.72.0/23	WBMC RC BRAS IP POOL	512
93.97.74.0/23	WBMC RC BRAS IP POOL	512
93.97.76.0/23	WBMC RC BRAS IP POOL	512
93.97.78.0/23	WBMC RC BRAS IP POOL	512
93.97.80.0/23	Telefonica UK Limited	512
93.97.170.0/23	WBMC RC BRAS IP POOL	512
93.97.224.0/23	WBMC RC BRAS IP POOL	512
185.79.104.0/23	Argos Limited	512
185.79.106.0/23	Argos Limited	512
46.233.78.0/24	Telefonica UK Limited	256
46.233.79.0/24	Telefonica UK Limited	256
46.233.82.0/24	Telefonica UK Limited	256
46.233.83.0/24	Telefonica UK Limited	256
46.233.88.0/24	Telefonica UK Limited	256
46.233.89.0/24	Telefonica UK Limited	256
46.233.91.0/24	Telefonica UK Limited	256
46.233.94.0/24	Telefonica UK Limited	256
82.132.199.0/24	O2 Online (UK) - Test DABs	256
87.194.21.0/24	Telefonica UK Limited	256
87.194.22.0/24	Telefonica UK Limited	256
87.194.23.0/24	Telefonica UK Limited	256
87.194.24.0/24	Telefonica UK Limited	256
87.194.25.0/24	Telefonica UK Limited	256
87.194.82.0/24	Telefonica UK Limited	256
87.194.83.0/24	Telefonica UK Limited	256
87.194.115.0/24	Infrastructure/Misc.	256
87.194.116.0/24	Infrastructure/Misc. TB	256
87.194.117.0/24	Infrastructure/Misc. TB	256
87.194.118.0/24	Infrastructure/Misc. TB	256
87.194.218.0/24	Telefonica UK Limited	256
87.194.219.0/24	Telefonica UK Limited	256
158.230.201.0/24	Telefonica UK Limited	256
185.132.84.0/24	NPS (Holdings) Limited	256

Netblock	Company
2a03:dd00::/32	Telefonica UK Limited
2a03:dd00:2200::/40	Telefonica UK Limited
2a03:dd00:3000::/44	Telefonica UK Limited
2a03:dd00:810::/46	Telefonica UK Limited
2a03:dd00:826::/47	Telefonica UK Limited
2a03:dd00:821::/48	Telefonica UK Limited
2a03:dd00:822::/48	Telefonica UK Limited
2a03:dd00:823::/48	Telefonica UK Limited
2a03:dd00:824::/48	Telefonica UK Limited
2a03:dd00:825::/48	Telefonica UK Limited
2a03:dd00:3002::/48	Telefonica UK Limited
2a03:dd00:300e::/48	Telefonica UK Limited

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WHOIS Details

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                                                ASHandle:       AS35228
                                                OrgID:          AS35228
                                                ASName:         AS35228
                                                ASNumber:       AS35228
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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IP WHOIS API & Database

Hosted Domains

There are 301 domain names hosted across 211 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
93.97.245.49	██████████	6
87.194.34.45	██████████	5
93.97.190.25	██████████	5
93.97.160.23	██████████	5
87.194.177.181	██████████	4
46.233.125.21	██████████	4
87.194.34.197	██████████	4
87.194.172.7	██████████	4
87.194.187.253	██████████	4
93.97.192.228	██████████	4

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Hosted Domains API & Database

Peers

There are 115 peers for this ASN.

Peers	Name
AS1031	PEER 1031 LLC
AS12552	GlobalConnect AB
AS1267	WIND TRE S.P.A.
AS12956	TELXIUS Cable
AS12969	Vodafone Iceland
AS13030	Init7 (Switzerland) Ltd.
AS132337	Axclusive
AS13237	euNetworks GmbH
AS137409	GSL Networks Pty LTD
AS14537	Continent 8 LLC
AS14630	Invesco Group Services, Inc.
AS14840	BR.Digital Telecom
AS15412	FLAG TELECOM UK LIMITED
AS15802	Emirates Integrated Telecommunications Company PJSC
AS16552	Tiggee LLC
AS17639	Converge ICT Solutions Inc.
AS18106	Viewqwest Pte Ltd
AS1828	Unitas Global
AS198150	SIACOM JSC
AS20562	Broadband Hosting B.V.
AS20764	CJSC RASCOM
AS207841	Inferno Communications Ltd
AS21215	UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS213241	TECHIT.BE SRL
AS22356	Durand do Brasil Ltda
AS24482	SG.GS
AS25091	IP-Max SA
AS25160	Vorboss Limited
AS263152	MIGO TELECOM
AS271253	LINK BRASIL TELECOMUNICACOES LTDA
AS286	GTT Communications Inc.
AS28792	Public Internet Ltd
AS29075	IELO Main Network
AS29180	Telefonica UK Limited
AS30844	Liquid Telecommunications Ltd
AS31122	Digiweb ltd
AS3170	VeloxServ Communications Ltd
AS31742	Sotaconnect Network
AS3214	xTom GmbH
AS3216	PJSC Vimpelcom
AS3257	GTT Communications Inc.
AS32590	Valve Corporation
AS33891	Core-Backbone GmbH
AS34177	CELESTE SAS
AS34288	Kantonsschule Zug
AS34549	meerfarbig GmbH & Co. KG
AS34927	iFog GmbH
AS35266	EX Networks Limited
AS35280	F5 Networks SARL
AS36236	NetActuate, Inc
AS36994	Vodacom
AS37100	SEACOM Limited
AS37282	Mainone Cable Company
AS3741	Dimension Data
AS37468	Angola Cables
AS37497	Network Platforms (PTY) LTD
AS37662	West Indian Ocean Cable Company
AS37680	Cool Ideas Service Provider (Pty) Ltd
AS37721	Virtual Technologies & Solutions
AS38880	Micron21 Datacentre Pty Ltd
AS39060	Sainsbury's Supermarkets Ltd
AS39120	Convergenze S.p.A.
AS39122	Blacknight Internet Solutions Limited
AS39351	31173 Services AB
AS398465	Rackdog, LLC
AS41095	IPTP LTD
AS41327	Fiber Telecom S.p.A.
AS41811	CONVERGENCE (GROUP NETWORKS) LIMITED
AS42473	Anexia Cloud Solutions GmbH
AS43733	Viva Armenia CJSC
AS4455	IX Reach Ltd
AS45352	IP ServerOne Solutions Sdn Bhd
AS4775	Globe Telecoms
AS47957	Worldline IGSA SA
AS48070	DSM (GB) Limited
AS48362	Stadtwerke Feldkirch
AS49544	i3D.net B.V
AS50063	Sainsbury's Supermarkets Ltd
AS50300	CustodianDC Limited
AS50304	Blix Solutions AS
AS5089	Virgin Media Limited
AS52075	Wifirst S.A.S.
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.
AS53062	ALT \| GRUPO BRASIL TECPAR
AS5405	Inter.link GmbH
AS5413	Wavenet Limited
AS56665	Proximus Luxembourg S.A.
AS5713	Telkom SA Ltd.
AS57463	NetIX Communications JSC
AS57850	Northumbrian Water Ltd
AS58511	Anycast Global Backbone
AS60171	AFR-IX TELECOM S.A.
AS61049	Exascale Ltd
AS61568	ALOO TELECOM - FSF TECNOLOGIA SA
AS61573	IP TELECOM
AS6204	INTERKVM HOST SRL
AS62167	Tismi BV
AS63927	RISE
AS64049	Reliance Jio Infocomm Pte Ltd Singapore

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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams	Name
AS12956	TELXIUS Cable
AS3257	GTT Communications Inc.
AS5089	Virgin Media Limited
AS6939	Hurricane Electric LLC

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ASN API & Database

Downstreams

There are 4 downstreams for this ASN.

Downstreams	Name
AS29180	Telefonica UK Limited
AS39060	Sainsbury's Supermarkets Ltd
AS50063	Sainsbury's Supermarkets Ltd
AS57850	Northumbrian Water Ltd

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
185.132.84.51	AS35228 Telefonica UK Limited	`3.55ms` from London, GB
46.233.117.152	AS35228 Telefonica UK Limited	`1.94ms` from London, GB
93.97.133.175	AS35228 Telefonica UK Limited	`7.32ms` from London, GB
87.194.255.241	AS35228 Telefonica UK Limited	`1.12ms` from London, GB
46.233.85.115	AS35228 Telefonica UK Limited	`2.02ms` from London, GB
46.233.67.18	AS35228 Telefonica UK Limited	`1.85ms` from London, GB
93.97.204.110	AS35228 Telefonica UK Limited	`5.79ms` from Erith, GB
93.97.217.90	AS35228 Telefonica UK Limited	`6.52ms` from London, GB
93.97.206.61	AS35228 Telefonica UK Limited	`7.40ms` from London, GB
46.233.89.26	AS35228 Telefonica UK Limited	`8.34ms` from London, GB
93.97.131.55	AS35228 Telefonica UK Limited	`6.40ms` from London, GB
93.97.171.236	AS35228 Telefonica UK Limited	`9.13ms` from London, GB
2a03:dd00:822::1	AS35228 Telefonica UK Limited	`0.91ms` from London, GB
93.97.174.194	AS35228 Telefonica UK Limited	`9.93ms` from London, GB
46.233.72.4	AS35228 Telefonica UK Limited	`1.87ms` from London, GB
93.97.50.6	AS35228 Telefonica UK Limited	`7.19ms` from London, GB
46.233.122.8	AS35228 Telefonica UK Limited	`1.99ms` from London, GB
87.194.0.67	AS35228 Telefonica UK Limited	`1.91ms` from London, GB
87.194.69.8	AS35228 Telefonica UK Limited	`3.75ms` from London, GB
87.194.26.1	AS35228 Telefonica UK Limited	`1.87ms` from London, GB
93.97.199.225	AS35228 Telefonica UK Limited	`6.51ms` from London, GB
93.97.201.30	AS35228 Telefonica UK Limited	`7.28ms` from London, GB
158.230.103.43	AS35228 Telefonica UK Limited	`2.34ms` from London, GB
93.97.48.33	AS35228 Telefonica UK Limited	`7.34ms` from London, GB
87.194.8.93	AS35228 Telefonica UK Limited	`12.02ms` from London, GB

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
181.128.158.76	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`5.64ms` from Bogota, CO
108.49.252.124	AS701 Verizon Business	`2.97ms` from Boston, US
102.119.1.156	AS23889 Mauritius Telecom Ltd	`3.13ms` from Ebene, MU
31.19.141.252	AS3209 Vodafone GmbH	`3.68ms` from Frankfurt am Main, DE
87.93.205.108	AS16086 DNA Oyj	`9.57ms` from Helsinki, FI
85.153.58.12	AS31365 NGI2 Technologies OU	`2.21ms` from Istanbul, TR
64.6.156.252	AS8159 KansasNet / Fox Business Systems	`9.24ms` from Kansas City, US
67.174.33.44	AS7922 Comcast Cable Communications, LLC	`10.01ms` from Los Angeles, US
2.136.69.236	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.81ms` from Madrid, ES
49.75.64.60	AS4134 CHINANET-BACKBONE	`4.87ms` from Nanjing, CN
187.62.49.60	AS22689 SERCOMTEL S/A TELECOMUNICACOES	`10.10ms` from Osasco, BR
90.25.106.252	AS3215 Orange S.A.	`4.97ms` from Paris, FR
73.12.164.44	AS7922 Comcast Cable Communications, LLC	`5.30ms` from Santa Clara, US
146.235.41.236	AS31898 Oracle Corporation	`0.32ms` from Sao Paulo, BR
70.69.31.188	AS6327 Shaw Communications	`12.58ms` from Seattle, US
13.48.100.92	AS16509 Amazon.com, Inc.	`0.13ms` from Stockholm, SE
186.247.100.60	AS7738 V tal	`1.59ms` from São Paulo, BR
140.125.206.252	AS1659 Taiwan Academic Network (TANet) Information Center	`12.08ms` from Taipei, TW
60.220.173.60	AS4837 CHINA UNICOM China169 Backbone	`5.48ms` from Taiyuan, CN
111.199.10.28	AS4808 China Unicom Beijing Province Network	`2.99ms` from Beijing, CN
109.57.168.124	AS44034 Hi3G Access AB	`5.55ms` from Copenhagen, DK
47.186.220.60	AS5650 Frontier Communications of America, Inc.	`2.05ms` from Dallas, US
131.253.114.140	AS8070 Microsoft Corporation	`1.08ms` from Des Moines, US
119.135.231.28	AS4134 CHINANET-BACKBONE	`6.10ms` from Guangzhou, CN
1.182.158.12	AS4134 CHINANET-BACKBONE	`10.31ms` from Hohhot, CN

Traceroute

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

traceroute -a -n -q1 -m5 93.97.73.20

traceroute to 93.97.73.20 (93.97.73.20): 5 hops max, 52 byte packets

1 [AS15169] 142.251.50.125 75.884 ms

2 [AS35228] 87.194.120.25 84.227 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On February 16th 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 AS35228 at robtex.

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