AS number details

AS5400

British Telecommunications PLC  ·  bt.com

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AS5400 – British Telecommunications PLC

Field Value
Country United Kingdom
Website bt.com
Hosted domains 891
Number of IPv4 693,760
Number of IPv6 72,018,399,725,466,282,872,531,450,855,424
ASN type ISP
Registry ripe
Allocated 22 years ago on Aug 29, 2002
Updated 3 months ago on Aug 09, 2024

IP Ranges

Netblock Company Num of IPs
132.244.240.0/24 Rolls-Royce plc 256
132.244.64.0/21 Rolls-Royce plc 2,048
132.244.72.0/21 Rolls-Royce plc 2,048
136.238.224.0/24 Schindler Informatik AG 256
136.238.84.0/24 Schindler Informatik AG 256
136.238.85.0/24 Schindler Informatik AG 256
166.49.128.0/17 communications networking services Private Unlimited Company 32,768
167.184.183.0/24 BAX GLOBAL 256
167.184.184.0/21 BAX GLOBAL 2,048
167.184.192.0/21 BAX GLOBAL 2,048
167.184.200.0/23 BAX GLOBAL 512
167.184.202.0/24 BAX GLOBAL 256
185.249.4.0/24 Lumileds Holding B.V. 256
185.94.0.0/22 British Telecommunications PLC 1,024
192.109.52.0/24 Thales Deutschland GmbH 256
193.141.192.0/19 Renesas Electronics Europe GmbH, Duesseldorf 8,192
193.58.130.0/23 TESSENDERLO CHEMIE INTERNATIONAL NV 512
194.107.114.0/24 CEVA Logistics Headoffice B.V. 256
194.213.64.0/19 British Telecommunications PLC 8,192
194.33.53.0/24 KANTAR DORMANT 3 LIMITED 256
194.33.54.0/24 KANTAR DORMANT 3 LIMITED 256
194.33.55.0/24 KANTAR DORMANT 3 LIMITED 256
194.50.160.0/24 Hyundai Motor Europe GmbH 256
194.74.80.0/21 British Telecommunications PLC 2,048
194.76.40.0/24 Infonet Network Services Germany 256
195.100.0.0/16 British Telecommunications PLC 65,536
195.163.0.0/16 British Telecommunications PLC 65,536
195.171.36.0/22 British Telecommunications PLC 1,024
195.182.96.0/19 British Telecommunications PLC 8,192
195.60.182.0/24 DeLaval International AB 256
195.60.183.0/24 DeLaval International AB 256
195.66.70.0/24 Kia Europe GmbH 256
195.90.64.0/19 British Telecommunications PLC 8,192
195.99.64.0/20 British Telecommunications PLC 4,096
198.178.236.0/24 KANTAR 256
204.52.188.0/24 KANTAR 256
206.73.0.0/16 INFONET Services Corporation 65,536
212.108.0.0/19 British Telecommunications PLC 8,192
212.127.0.0/19 British Telecommunications PLC 8,192
212.162.192.0/18 British Telecommunications PLC 16,384
212.21.192.0/19 British Telecommunications PLC 8,192
212.31.192.0/19 British Telecommunications PLC 8,192
212.41.128.0/19 British Telecommunications PLC 8,192
212.49.131.0/24 BT Telecomunicaciones 256
212.49.190.0/24 Expedia.com 256
212.8.160.0/19 British Telecommunications PLC 8,192
213.137.160.0/19 British Telecommunications PLC 8,192
213.15.0.0/16 British Telecommunications PLC 65,536
213.194.0.0/18 British Telecommunications PLC 16,384
213.236.64.0/18 British Telecommunications PLC 16,384
46.248.10.0/23 TNT Express ICS Limited 512
46.248.8.0/23 TNT Express ICS Limited 512
62.102.0.0/17 British Telecommunications PLC 32,768
62.134.0.0/16 British Telecommunications PLC 65,536
62.172.0.0/21 British Telecommunications PLC 2,048
62.173.192.0/18 British Telecommunications PLC 16,384
62.180.0.0/16 British Telecommunications PLC 65,536
62.5.0.0/17 British Telecommunications PLC 32,768
80.255.160.0/20 BT Global Services Luxembourg S.a.r.l 4,096
80.255.160.0/24 BT Global Services Luxembourg 256
80.255.161.0/24 BT Global Services Luxembourg 256
80.255.162.0/24 BT Global Services Luxembourg 256
8.12.61.0/24 Millward Brown, Inc. 256
82.138.160.0/19 Amcor Flexibles Finland OY 8,192
82.150.0.0/19 British Telecommunications PLC 8,192
Netblock Company
2001:740::/32 British Telecommunications PLC
2a00:2000::/23 British Telecommunications PLC
2a00:2200::/25 British Telecommunications PLC
2a00:2280::/25 British Telecommunications PLC
2a00:2300::/25 British Telecommunications PLC
2a0c:7c80::/29 Thales Deutschland GmbH
2a0c:8480::/30 Hitachi Rail GTS Deutschland GmbH
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WHOIS Details

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ASHandle:       AS5400
OrgID:          AS5400
ASName:         AS5400
ASNumber:       AS5400
RegDate:        0000-00-00
Updated:        0000-00-00
TechHandle:     AA00-AAAA
Source:         AAAA
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Hosted Domains

There are 891 domain names hosted across 199 IP addresses on this ASN.

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IP Address Domain Domains on this IP
80.255.163.72 ██████████ 92
212.108.4.142 ██████████ 86
62.134.42.244 ██████████ 78
62.180.131.138 ██████████ 63
62.180.131.137 ██████████ 59
62.180.233.75 ██████████ 27
212.108.4.216 ██████████ 26
62.134.89.36 ██████████ 20
213.236.117.34 █████████ 18
62.180.126.137 ██████████ 18

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Peers

There are 163 peers for this ASN.

Peers Name
AS10780 Pure Storage, INC.
AS11164 Internet2
AS1120 ACONET
AS12257 Dell, Inc.
AS12298 QIAGEN GmbH
AS12331 Audi AG
AS12389 PJSC Rostelecom
AS1239 Sprint
AS12430 VODAFONE ESPANA S.A.U.
AS12440 Hughes Network Systems GmbH
AS12552 GlobalConnect AB
AS1257 Tele2 Sverige AB
AS1267 WIND TRE S.P.A.
AS1273 Vodafone Group PLC
AS12734 FCA INFORMATION TECHNOLOGY, EXCELLENCE AND METHODS S.P.A.
AS12741 Netia SA
AS12883 PRIVATE JOINT-STOCK COMPANY "FARLEP-INVEST"
AS12956 TELEFONICA GLOBAL SOLUTIONS SL
AS1299 Arelion Sweden AB
AS13030 Init7 (Switzerland) Ltd.
AS13130 Autostadt GmbH
AS13205 British Telecommunications PLC
AS132203 Tencent Building, Kejizhongyi Avenue
AS13335 Cloudflare, Inc.
AS14361 HopOne Internet Corporation
AS14907 Wikimedia Foundation Inc.
AS15410 BT Limited Magyarorszagi Fioktelepe
AS15412 FLAG TELECOM UK LIMITED
AS15466 Defensie Telematica Organisatie
AS15518 circular Informationssysteme GmbH
AS16147 Politie Nederland
AS16839 SERVICENOW, INC.
AS174 Cogent Communications
AS1828 Unitas Global
AS1836 green.ch AG
AS1853 ACONET
AS19151 BroadbandONE, LLC
AS1955 KIFU (Governmental Info Tech Development Agency)
AS196636 Helaba Invest Kapitalanlagegesellschaft mbH
AS199524 G-Core Labs S.A.
AS199541 EUROCONTROL, the European Organisation for the Safety of Air Navigation
AS200500 Vesta Payment Solutions Limited
AS202097 IBERMUTUA
AS202666 International Flavors & Fragrances I.F.F. (Nederland) B.V
AS202893 Lighting INTERNET
AS203990 Accertify LLC
AS20485 Joint Stock Company TransTeleCom
AS20561 Schaeffler Technologies AG & Co. KG
AS206625 Enterprise Holdings, Inc.
AS207180 HCL Technologies Germany GmbH
AS208053 Clarins SAS
AS20868 ABB Information Systems Ltd
AS20940 Akamai International B.V.
AS21000 Atos France SAS
AS2110 BT Communications Ireland Limited
AS2119 Telenor Norge AS
AS212565 Specsavers Optical Group Limited
AS21277 Allay Nawroz Telecom Company for Communication/Ltd.
AS21320 GEANT Vereniging
AS21489 The North Atlantic Treaty Organization
AS22683 PHILIPS INTERNET
AS23764 CTGNet
AS24961 WIIT AG
AS2497 Internet Initiative Japan Inc.
AS25049 Shell Information Technology International B.V.
AS2516 KDDI CORPORATION
AS25261 IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA
AS2603 NORDUnet
AS26380 MasterCard Technologies LLC
AS2686 AT&T Corp.
AS2856 British Telecommunications PLC
AS28879 Media-Saturn-Holding GmbH
AS2906 Netflix Streaming Services Inc.
AS29063 Eviden Netherlands B.V.
AS30103 Zoom Video Communications, Inc
AS30614 Dell, Inc.
AS30781 Free Pro SAS
AS30864 Elavon Financial Services DAC
AS31027 GlobalConnect A/S
AS31614 European Central Bank
AS3257 GTT Communications Inc.
AS3292 TDC Holding A/S
AS3300 British Telecommunications PLC
AS3303 Swisscom (Schweiz) AG
AS3320 Deutsche Telekom AG
AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS3356 Level 3 Parent, LLC
AS33873 Arvato Systems GmbH
AS33891 Core-Backbone GmbH
AS34311 LG CNS Europe B.V
AS34460 PHOENIX Pharmahandel GmbH & Co KG
AS3491 PCCW Global, Inc.
AS35280 F5 Networks SARL
AS3573 Accenture LLP
AS35740 Euronet Services Kft
AS35923 Johnson & Johnson Consumer Inc.
AS37100 SEACOM Limited
AS37468 Angola Cables
AS38191 Infosys Technologies Ltd
AS39351 31173 Services AB
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ASN API ASN Database Download

Upstreams

There are 13 upstreams for this ASN.

upstreams Name
AS12956 TELEFONICA GLOBAL SOLUTIONS SL
AS1299 Arelion Sweden AB
AS174 Cogent Communications
AS3257 GTT Communications Inc.
AS3320 Deutsche Telekom AG
AS3356 Level 3 Parent, LLC
AS3491 PCCW Global, Inc.
AS5511 Orange S.A.
AS6453 TATA COMMUNICATIONS (AMERICA) INC
AS6461 Zayo Bandwidth
AS6762 TELECOM ITALIA SPARKLE S.p.A.
AS6830 Liberty Global B.V.
AS6939 Hurricane Electric LLC
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Downstreams

There are 65 downstreams for this ASN.

Downstreams Name
AS10780 Pure Storage, INC.
AS12257 Dell, Inc.
AS12298 QIAGEN GmbH
AS12331 Audi AG
AS12440 Hughes Network Systems GmbH
AS12734 FCA INFORMATION TECHNOLOGY, EXCELLENCE AND METHODS S.P.A.
AS13130 Autostadt GmbH
AS13205 British Telecommunications PLC
AS15410 BT Limited Magyarorszagi Fioktelepe
AS15466 Defensie Telematica Organisatie
AS15518 circular Informationssysteme GmbH
AS16839 SERVICENOW, INC.
AS196636 Helaba Invest Kapitalanlagegesellschaft mbH
AS199541 EUROCONTROL, the European Organisation for the Safety of Air Navigation
AS200500 Vesta Payment Solutions Limited
AS202097 IBERMUTUA
AS202666 International Flavors & Fragrances I.F.F. (Nederland) B.V
AS202893 Lighting INTERNET
AS203990 Accertify LLC
AS20561 Schaeffler Technologies AG & Co. KG
AS206625 Enterprise Holdings, Inc.
AS207180 HCL Technologies Germany GmbH
AS208053 Clarins SAS
AS20868 ABB Information Systems Ltd
AS21000 Atos France SAS
AS2110 BT Communications Ireland Limited
AS212565 Specsavers Optical Group Limited
AS21489 The North Atlantic Treaty Organization
AS22683 PHILIPS INTERNET
AS25049 Shell Information Technology International B.V.
AS25261 IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA
AS26380 MasterCard Technologies LLC
AS2856 British Telecommunications PLC
AS28879 Media-Saturn-Holding GmbH
AS29063 Eviden Netherlands B.V.
AS30614 Dell, Inc.
AS30864 Elavon Financial Services DAC
AS31614 European Central Bank
AS3356 Level 3 Parent, LLC
AS33873 Arvato Systems GmbH
AS34311 LG CNS Europe B.V
AS34460 PHOENIX Pharmahandel GmbH & Co KG
AS3573 Accenture LLP
AS35740 Euronet Services Kft
AS35923 Johnson & Johnson Consumer Inc.
AS38191 Infosys Technologies Ltd
AS394805 ReliaQuest, LLC
AS40126 Molson Coors Beverage Company
AS40999 dus.net GmbH
AS41321 Fujitsu Technology Solutions GmbH
AS42848 European Commission
AS43033 Telio Communications GmbH
AS43949 Marsh Limited
AS48647 Solvay SA
AS51046 Bringo Limited
AS51466 Bridgestone Europe NV
AS51527 AUTOEVER EUROPE
AS60112 Clarins SAS
AS6453 TATA COMMUNICATIONS (AMERICA) INC
AS72 Schlumberger Limited
AS7246 Bristol-Myers Squibb Company
AS8590 Bayerische Motoren Werke Aktiengesellschaft
AS8903 LYNTIA NETWORKS S.A.
AS8968 BT Italia S.p.A.
AS9183 Robert Bosch Gesellschaft mit Beschraenkter Haftung
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ASN API ASN Database Download

Related Networks

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 AS5400 at robtex.

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