IPLibre logo IPLibre

Search any IP address or ASN

Enter an IPv4, IPv6, or ASN to retrieve geolocation, network, company, privacy and abuse details. You can also query it via the API or download the database.

or  bulk search
o2 (Telefonica UK) logo

o2 (Telefonica UK)

🇬🇧 United Kingdom

The ASN (Autonomous System Number) is a unique number assigned to an autonomous system, used to identify the network. ASN

AS35228

The RIR (Regional Internet Registry) is the organization responsible for managing ASN allocation in a specific region. RIR

RIPE

The type of ASN. Can be business, isp, hosting, government, or education. Type

isp

Website

telefonica.com

Related ASNs have the same name or website. Related

AS35208 AS198198 AS42212 AS12638 AS22364 AS31418 AS6805 AS12956

IPv4 CIDRs

89

IPv4 addresses

279552

IPv6 CIDRs

1

IPv6 addresses

1048576

Upstreams are networks that provide transit to this ASN. Upstreams (4)

AS3257 GTT Communications Inc. logo GTT Communications Inc.
AS12956 Telxius (Telefonica Global) logo Telxius (Telefonica Global)
AS9002 RETN Limited logo RETN Limited
AS6939 Hurricane Electric LLC logo Hurricane Electric LLC

Downstreams are networks that receive transit from this ASN. Downstreams (5)

AS50063 Sainsbury's Supermarkets Ltd logo Sainsbury's Supermarkets Ltd
AS208507 Mitsubishi HC Capital UK PLC logo Mitsubishi HC Capital UK PLC
AS29180 Telefonica UK Limited logo Telefonica UK Limited
AS39060 Sainsbury's Supermarkets Ltd logo Sainsbury's Supermarkets Ltd
AS57850 Northumbrian Water Ltd logo Northumbrian Water Ltd

Peers are networks that exchange traffic with this ASN. Peers (25)

AS20562 -
AS213241 TECHIT.BE SRL logo TECHIT.BE SRL
AS50304 Blix Solutions AS logo Blix Solutions AS
AS34549 meerfarbig GmbH & Co. KG logo meerfarbig GmbH & Co. KG
AS48362 Stadtwerke Feldkirch logo Stadtwerke Feldkirch
View more
AS50300 CustodianDC Limited logo CustodianDC Limited
AS12956 Telxius (Telefonica Global) logo Telxius (Telefonica Global)
AS24482 SG.GS logo SG.GS
AS37721 Virtual Technologies & Solutions
AS9002 RETN Limited logo RETN Limited
AS3257 GTT Communications Inc. logo GTT Communications Inc.
AS2603 NORDUnet logo NORDUnet
AS208507 Mitsubishi HC Capital UK PLC logo Mitsubishi HC Capital UK PLC
AS33891 Core-Backbone GmbH logo Core-Backbone GmbH
AS17639 Converge ICT Solutions Inc. logo Converge ICT Solutions Inc.
AS3216 PJSC "Vimpelcom" logo PJSC "Vimpelcom"
AS29180 Telefonica UK Limited logo Telefonica UK Limited
AS6939 Hurricane Electric LLC logo Hurricane Electric LLC
AS39060 Sainsbury's Supermarkets Ltd logo Sainsbury's Supermarkets Ltd
AS7575 Australian Academic and Research Network (AARNet) logo Australian Academic and Research Network (AARNet)
AS35280 F5 Networks SARL logo F5 Networks SARL
AS57304 RETN Russia logo RETN Russia
AS2119 Telenor Norge AS logo Telenor Norge AS
AS50063 Sainsbury's Supermarkets Ltd logo Sainsbury's Supermarkets Ltd
AS57850 Northumbrian Water Ltd logo Northumbrian Water Ltd

IPv6 CIDRs (1)

2a03:dd00:3000::/44

Location

City

Reading

Country

🇬🇧 United Kingdom

Coordinates

51.45625, -0.97113

Timezone

Europe/London

We transparently share the different sources used to determine a likely location for this IP address. Source

whois

Abuse

Query via the API View API documentation

curl iplib.re/AS35228

JSON response

{
  "network": {
    "rir": "RIPE",
    "asn": 35228,
    "name": "o2 (Telefonica UK)",
    "type": "isp",
    "website": "telefonica.com",
    "related": [
      35208,
      198198,
      42212,
      12638,
      22364,
      31418,
      6805,
      12956
    ]
  },
  "connectivity": {
    "upstreams": [
      3257,
      12956,
      9002,
      6939
    ],
    "downstreams": [
      50063,
      208507,
      29180,
      39060,
      57850
    ],
    "peers": [
      20562,
      213241,
      50304,
      34549,
      48362
    ]
  },
  "location": {
    "latitude": 51.45625,
    "longitude": -0.97113,
    "country": "GB",
    "city": "Reading",
    "source": "whois",
    "timezone": "Europe/London"
  },
  "abuse": {
    "email": "internet.peering@telefonica.com"
  },
  "ipv4": {
    "ranges": [
      "46.233.64.0/18",
      "46.233.78.0/24",
      "46.233.79.0/24",
      "46.233.82.0/23",
      "46.233.88.0/23"
    ],
    "cidrs": 89,
    "ips": 279552
  },
  "ipv6": {
    "ranges": [
      "2a03:dd00:3000::/44"
    ],
    "cidrs": 1,
    "ips": 1048576
  }
}