AS35228 — O2BROADBAND Telefonica UK Limited

Network type: residential

AS35228 announces 20 IPv4 prefixes covering 201,728 addresses and 1 IPv6 prefixes.

About this network

Telefonica UK (O2) — the O2 network in the United Kingdom, part of the Virgin Media O2 joint venture.

What it's used for

• Mobile internet and home broadband (including fixed-wireless) for UK consumers.

Notable

• An "eyeball" network: addresses here are UK end users, home and mobile, not servers.
• O2 is one of the UK's largest mobile operators; since 2021 it sits alongside Virgin Media's cable network under Virgin Media O2.

Interesting

• The Telefónica/Liberty Global merger that created Virgin Media O2 paired O2's mobile subscriber base with Virgin Media's fixed cable footprint.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 46.233.64.0/18
• 82.132.138.0/23
• 82.132.144.0/23
• 82.132.160.0/20
• 82.132.176.0/21
• 82.132.184.0/22
• 82.132.198.0/23
• 82.132.210.0/23
• 82.132.212.0/22
• 82.132.216.0/21
• 82.132.224.0/20
• 82.132.240.0/21
• 82.132.248.0/23
• 82.132.253.0/24
• 87.194.0.0/16
• 93.97.0.0/16
• 158.230.0.0/17
• 158.230.200.0/22
• 185.79.104.0/22
• 185.132.84.0/24
• 2a03:dd00::/32

Upstream networks

• AS5089 Virgin Media Limited
• AS12956 TELEFONICA GLOBAL SOLUTIONS SL
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS9002 RETN Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS50304 Blix Solutions AS
• AS33891 Core-Backbone GmbH
• AS17639 Converge ICT Solutions Inc.
• AS37721 Virtual Technologies & Solutions
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS48185 team.blue NV
• AS37100 SEACOM Limited
• AS6797 GlobalConnect AB
• AS29075 IELO-LIAZO SERVICES SAS
• AS4657 StarHub Ltd
• AS3216 PJSC "Vimpelcom"
• AS7575 Australian Academic and Research Network (AARNet)
• AS48362 Stadtwerke Feldkirch
• AS25091 IP-Max SA

Downstream networks

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

Adjacent networks

• AS5089 Virgin Media Limited
• AS29180 Telefonica UK Limited
• AS12956 TELEFONICA GLOBAL SOLUTIONS SL
• AS6939 Hurricane Electric LLC
• AS9002 RETN Limited
• AS3257 GTT Communications Inc.
• AS34549 meerfarbig GmbH & Co. KG
• AS39060 Sainsbury's Supermarkets Ltd
• AS57850 Northumbrian Water Ltd
• AS50063 Sainsbury's Supermarkets Ltd
• AS33891 Core-Backbone GmbH
• AS50304 Blix Solutions AS
• AS17639 Converge ICT Solutions Inc.
• AS37721 Virtual Technologies & Solutions
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS48185 team.blue NV
• AS4657 StarHub Ltd
• AS3216 PJSC "Vimpelcom"
• AS29075 IELO-LIAZO SERVICES SAS
• AS6797 GlobalConnect AB
• AS37100 SEACOM Limited
• AS7575 Australian Academic and Research Network (AARNet)
• AS48362 Stadtwerke Feldkirch
• AS25091 IP-Max SA

Routing security

• RPKI: 135 valid, 0 invalid and 6 not-found announcements; 74 ROAs.
• ASPA: none published.
• IRR: 91% of announcements registered; 130 route objects.
• Listed in as-sets: AS-ATRATO:AS-PEERS, AS-BEUNLIMITED, AS-C4LPEERS, AS-GSVNET-LINX-PEERS, AS-GTTCUST, AS-GTTCUST6, AS-JARMTELCO, AS-MANDA-LINX-PEERS-V4, AS-O2_BROADBAND, AS-PLUSNETUK:AS-LINX-PEERS-PRI, AS-PLUSNETUK:AS-LINX-PEERS-SEC, AS-RIS-RRC01, AS-TDATANETEU, AS12703:AS-PEERS, AS31122:AS-ALL-PEERS, AS51202:AS-ALL, AS53667:AS-CUSTOMERS, AS8218:AS-PEERS.

Internet exchanges

• LINX LON1 — London, United Kingdom