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British Telecommunications (International)  logo

British Telecommunications (International)

🇬🇧 United Kingdom

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

AS5400

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

bt.net

Related ASNs have the same name or website. Related

AS31249 AS3300 AS15410 AS44127 AS208053 AS60112 AS13063 AS16203

IPv4 CIDRs

60

IPv4 addresses

694784

IPv6 CIDRs

6

IPv6 addresses

905

Upstreams are networks that provide transit to this ASN. Upstreams (13)

AS1299 Arelion (fka. Telia Carrier) logo Arelion (fka. Telia Carrier)
AS174 Cogent Communications logo Cogent Communications
AS3257 GTT Communications Inc. logo GTT Communications Inc.
AS6453 TATA Communications (America) Inc logo TATA Communications (America) Inc
AS9002 RETN Limited logo RETN Limited
View more
AS4637 Telstra Global logo Telstra Global
AS3320 Deutsche Telekom AG logo Deutsche Telekom AG
AS3356 Lumen (Level 3) logo Lumen (Level 3)
AS6461 Zayo Bandwidth logo Zayo Bandwidth
AS6939 Hurricane Electric LLC logo Hurricane Electric LLC
AS6762 Telecom Italia Sparkle (Seabone) logo Telecom Italia Sparkle (Seabone)
AS3491 PCCW Global, Inc. logo PCCW Global, Inc.
AS5511 Orange S.A. logo Orange S.A.

Downstreams are networks that receive transit from this ASN. Downstreams (65)

AS10780 Pure Storage, INC. logo Pure Storage, INC.
AS199541 EUROCONTROL logo EUROCONTROL
AS12440 Hughes Network Systems GmbH logo Hughes Network Systems GmbH
AS206625 Enterprise Holdings, Inc. logo Enterprise Holdings, Inc.
AS16839 SERVICENOW, INC. logo SERVICENOW, INC.
View more
AS38191 Infosys Technologies Ltd logo Infosys Technologies Ltd
AS12257 Dell, Inc. logo Dell, Inc.
AS13130 Autostadt GmbH logo Autostadt GmbH
AS34311 LG CNS Europe B.V logo LG CNS Europe B.V
AS15410 BT Limited Magyarorszagi Fioktelepe logo BT Limited Magyarorszagi Fioktelepe
AS12298 QIAGEN GmbH logo QIAGEN GmbH
AS8903 LYNTIA NETWORKS S.A. logo LYNTIA NETWORKS S.A.
AS25261 IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA logo IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA
AS72 Schlumberger Limited logo Schlumberger Limited
AS200361 CONCENTRIX SERVICES BULGARIA EOOD logo CONCENTRIX SERVICES BULGARIA EOOD
AS34460 PHOENIX Pharmahandel GmbH & Co KG logo PHOENIX Pharmahandel GmbH & Co KG
AS12734 FCA INFORMATION TECHNOLOGY, EXCELLENCE AND METHODS S.P.A. logo FCA INFORMATION TECHNOLOGY, EXCELLENCE AND METHODS S.P.A.
AS203990 Accertify LLC logo Accertify LLC
AS202097 IBERMUTUA logo IBERMUTUA
AS20561 Schaeffler Technologies AG & Co. KG logo Schaeffler Technologies AG & Co. KG
AS25049 Shell Information Technology International B.V. logo Shell Information Technology International B.V.
AS394805 ReliaQuest, LLC logo ReliaQuest, LLC
AS207180 HCL Technologies Germany GmbH logo HCL Technologies Germany GmbH
AS51466 Bridgestone Europe NV logo Bridgestone Europe NV
AS7246 Bristol-Myers Squibb Company logo Bristol-Myers Squibb Company
AS2856 British Telecommunications logo British Telecommunications
AS196636 Helaba Invest Kapitalanlagegesellschaft mbH logo Helaba Invest Kapitalanlagegesellschaft mbH
AS51527 Hyundai AutoEver Europe GmbH logo Hyundai AutoEver Europe GmbH
AS21489 The North Atlantic Treaty Organization logo The North Atlantic Treaty Organization
AS8590 Bayerische Motoren Werke Aktiengesellschaft logo Bayerische Motoren Werke Aktiengesellschaft
AS30614 Dell, Inc. logo Dell, Inc.
AS41596 Willis Group Services Ltd logo Willis Group Services Ltd
AS202893 Signify Holding B.V. logo Signify Holding B.V.
AS15518 circular Informationssysteme GmbH logo circular Informationssysteme GmbH
AS35923 Johnson & Johnson Consumer Inc. logo Johnson & Johnson Consumer Inc.
AS30864 Elavon Financial Services DAC logo Elavon Financial Services DAC
AS208053 Clarins SAS logo Clarins SAS
AS202666 International Flavors & Fragrances I.F.F. (Nederland) B.V logo International Flavors & Fragrances I.F.F. (Nederland) B.V
AS13205 British Telecommunications PLC logo British Telecommunications PLC
AS41321 Fsas Technologies GmbH logo Fsas Technologies GmbH
AS212565 Specsavers Optical Group Limited logo Specsavers Optical Group Limited
AS3573 Accenture LLP logo Accenture LLP
AS26380 MasterCard Technologies LLC logo MasterCard Technologies LLC
AS48647 Solvay SA logo Solvay SA
AS15466 Defensie Telematica Organisatie logo Defensie Telematica Organisatie
AS29063 Eviden Netherlands B.V. logo Eviden Netherlands B.V.
AS31614 European Central Bank logo European Central Bank
AS12331 Audi AG logo Audi AG
AS200500 Vesta Payment Solutions Limited logo Vesta Payment Solutions Limited
AS40999 dus.net GmbH logo dus.net GmbH
AS9183 Robert Bosch Gesellschaft mit Beschraenkter Haftung logo Robert Bosch Gesellschaft mit Beschraenkter Haftung
AS2110 BT Communications Ireland Limited logo BT Communications Ireland Limited
AS21000 Atos France SAS logo Atos France SAS
AS43033 Telio Communications GmbH logo Telio Communications GmbH
AS51046 Bringo Limited logo Bringo Limited
AS8968 BT Italia S.p.A. logo BT Italia S.p.A.
AS7734 Toronto Dominion Bank logo Toronto Dominion Bank
AS60112 Clarins SAS logo Clarins SAS
AS33873 Arvato Systems GmbH logo Arvato Systems GmbH
AS28879 Media-Saturn-Holding GmbH logo Media-Saturn-Holding GmbH
AS42848 European Commission logo European Commission
AS20868 ABB Information Systems Ltd logo ABB Information Systems Ltd
AS40126 Molson Coors Beverage Company logo Molson Coors Beverage Company
AS22683 Koninklijke Philips N.V. logo Koninklijke Philips N.V.
AS43949 Marsh Limited logo Marsh Limited

Peers are networks that exchange traffic with this ASN. Peers (89)

AS50304 Blix Solutions AS logo Blix Solutions AS
AS42708 GleSYS AB logo GleSYS AB
AS5511 Orange S.A. logo Orange S.A.
AS34311 LG CNS Europe B.V logo LG CNS Europe B.V
AS203990 Accertify LLC logo Accertify LLC
View more
AS3573 Accenture LLP logo Accenture LLP
AS40126 Molson Coors Beverage Company logo Molson Coors Beverage Company
AS31614 European Central Bank logo European Central Bank
AS212565 Specsavers Optical Group Limited logo Specsavers Optical Group Limited
AS577 Bell Canada logo Bell Canada
AS51527 Hyundai AutoEver Europe GmbH logo Hyundai AutoEver Europe GmbH
AS2119 Telenor Norge AS logo Telenor Norge AS
AS22683 Koninklijke Philips N.V. logo Koninklijke Philips N.V.
AS12298 QIAGEN GmbH logo QIAGEN GmbH
AS199541 EUROCONTROL logo EUROCONTROL
AS60112 Clarins SAS logo Clarins SAS
AS15518 circular Informationssysteme GmbH logo circular Informationssysteme GmbH
AS200361 CONCENTRIX SERVICES BULGARIA EOOD logo CONCENTRIX SERVICES BULGARIA EOOD
AS30864 Elavon Financial Services DAC logo Elavon Financial Services DAC
AS8590 Bayerische Motoren Werke Aktiengesellschaft logo Bayerische Motoren Werke Aktiengesellschaft
AS51466 Bridgestone Europe NV logo Bridgestone Europe NV
AS10780 Pure Storage, INC. logo Pure Storage, INC.
AS57304 RETN Russia logo RETN Russia
AS6461 Zayo Bandwidth logo Zayo Bandwidth
AS12257 Dell, Inc. logo Dell, Inc.
AS3320 Deutsche Telekom AG logo Deutsche Telekom AG
AS208053 Clarins SAS logo Clarins SAS
AS174 Cogent Communications logo Cogent Communications
AS2856 British Telecommunications logo British Telecommunications
AS30614 Dell, Inc. logo Dell, Inc.
AS202097 IBERMUTUA logo IBERMUTUA
AS30781 Free Pro SAS logo Free Pro SAS
AS1299 Arelion (fka. Telia Carrier) logo Arelion (fka. Telia Carrier)
AS20868 ABB Information Systems Ltd logo ABB Information Systems Ltd
AS34460 PHOENIX Pharmahandel GmbH & Co KG logo PHOENIX Pharmahandel GmbH & Co KG
AS196636 Helaba Invest Kapitalanlagegesellschaft mbH logo Helaba Invest Kapitalanlagegesellschaft mbH
AS28879 Media-Saturn-Holding GmbH logo Media-Saturn-Holding GmbH
AS72 Schlumberger Limited logo Schlumberger Limited
AS40999 dus.net GmbH logo dus.net GmbH
AS7246 Bristol-Myers Squibb Company logo Bristol-Myers Squibb Company
AS1836 green.ch AG logo green.ch AG
AS20485 JSC TransTeleKom logo JSC TransTeleKom
AS15466 Defensie Telematica Organisatie logo Defensie Telematica Organisatie
AS29063 Eviden Netherlands B.V. logo Eviden Netherlands B.V.
AS6453 TATA Communications (America) Inc logo TATA Communications (America) Inc
AS15410 BT Limited Magyarorszagi Fioktelepe logo BT Limited Magyarorszagi Fioktelepe
AS13205 British Telecommunications PLC logo British Telecommunications PLC
AS25049 Shell Information Technology International B.V. logo Shell Information Technology International B.V.
AS200500 Vesta Payment Solutions Limited logo Vesta Payment Solutions Limited
AS33873 Arvato Systems GmbH logo Arvato Systems GmbH
AS25261 IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA logo IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA
AS6762 Telecom Italia Sparkle (Seabone) logo Telecom Italia Sparkle (Seabone)
AS26380 MasterCard Technologies LLC logo MasterCard Technologies LLC
AS41596 Willis Group Services Ltd logo Willis Group Services Ltd
AS2110 BT Communications Ireland Limited logo BT Communications Ireland Limited
AS41321 Fsas Technologies GmbH logo Fsas Technologies GmbH
AS4637 Telstra Global logo Telstra Global
AS21000 Atos France SAS logo Atos France SAS
AS21489 The North Atlantic Treaty Organization logo The North Atlantic Treaty Organization
AS43033 Telio Communications GmbH logo Telio Communications GmbH
AS3491 PCCW Global, Inc. logo PCCW Global, Inc.
AS16839 SERVICENOW, INC. logo SERVICENOW, INC.
AS8903 LYNTIA NETWORKS S.A. logo LYNTIA NETWORKS S.A.
AS12440 Hughes Network Systems GmbH logo Hughes Network Systems GmbH
AS48647 Solvay SA logo Solvay SA
AS3356 Lumen (Level 3) logo Lumen (Level 3)
AS394805 ReliaQuest, LLC logo ReliaQuest, LLC
AS13030 Init7 (Switzerland) Ltd. logo Init7 (Switzerland) Ltd.
AS12734 FCA INFORMATION TECHNOLOGY, EXCELLENCE AND METHODS S.P.A. logo FCA INFORMATION TECHNOLOGY, EXCELLENCE AND METHODS S.P.A.
AS6939 Hurricane Electric LLC logo Hurricane Electric LLC
AS9002 RETN Limited logo RETN Limited
AS43949 Marsh Limited logo Marsh Limited
AS202666 International Flavors & Fragrances I.F.F. (Nederland) B.V logo International Flavors & Fragrances I.F.F. (Nederland) B.V
AS207180 HCL Technologies Germany GmbH logo HCL Technologies Germany GmbH
AS42848 European Commission logo European Commission
AS8968 BT Italia S.p.A. logo BT Italia S.p.A.
AS9183 Robert Bosch Gesellschaft mit Beschraenkter Haftung logo Robert Bosch Gesellschaft mit Beschraenkter Haftung
AS35280 F5 Networks SARL logo F5 Networks SARL
AS206625 Enterprise Holdings, Inc. logo Enterprise Holdings, Inc.
AS38191 Infosys Technologies Ltd logo Infosys Technologies Ltd
AS12331 Audi AG logo Audi AG
AS7734 Toronto Dominion Bank logo Toronto Dominion Bank
AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS13130 Autostadt GmbH logo Autostadt GmbH
AS35923 Johnson & Johnson Consumer Inc. logo Johnson & Johnson Consumer Inc.
AS3257 GTT Communications Inc. logo GTT Communications Inc.
AS51046 Bringo Limited logo Bringo Limited
AS202893 Signify Holding B.V. logo Signify Holding B.V.
AS20561 Schaeffler Technologies AG & Co. KG logo Schaeffler Technologies AG & Co. KG

Location

City

-

Country

🇬🇧 United Kingdom

Coordinates

55.37805, -3.435973

Timezone

-

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

whois

Abuse

Email

abuse@eu.bt.net

Phone

+31 (0)88 212 8034

Query via the API View API documentation

curl iplib.re/AS5400

JSON response

{
  "network": {
    "rir": "RIPE",
    "asn": 5400,
    "name": "British Telecommunications (International) ",
    "type": "isp",
    "website": "bt.net",
    "related": [
      31249,
      3300,
      15410,
      44127,
      208053,
      60112,
      13063,
      16203
    ]
  },
  "connectivity": {
    "upstreams": [
      1299,
      174,
      3257,
      6453,
      9002
    ],
    "downstreams": [
      10780,
      199541,
      12440,
      206625,
      16839
    ],
    "peers": [
      50304,
      42708,
      5511,
      34311,
      203990
    ]
  },
  "location": {
    "latitude": 55.37805,
    "longitude": -3.435973,
    "country": "GB",
    "source": "whois"
  },
  "abuse": {
    "email": "abuse@eu.bt.net",
    "phone": "+31 (0)88 212 8034"
  },
  "ipv4": {
    "ranges": [
      "8.12.61.0/24",
      "31.95.0.0/21",
      "31.95.16.0/20",
      "46.248.8.0/23",
      "46.248.10.0/23"
    ],
    "cidrs": 60,
    "ips": 694784
  },
  "ipv6": {
    "ranges": [
      "2001:740::/32",
      "2a00:2000::/23",
      "2a00:2200::/25",
      "2a00:2280::/25",
      "2a00:2300::/25"
    ],
    "cidrs": 6,
    "ips": 905
  }
}