AS number details

AS3300

British Telecommunications PLC  ·  bt.com

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AS3300 – British Telecommunications PLC

Field Value
Country United Kingdom
Website bt.com
Hosted domains 55
Number of IPv4 513,280
Number of IPv6 236,446,547,503,507,632,505,732,726,784
ASN type ISP
Registry ripe
Allocated 23 years ago on Sep 19, 2002
Updated 24 days ago on Mar 03, 2025

IP Ranges

Netblock Company Num of IPs
136.238.168.0/24 Schindler Informatik AG 256
136.238.185.0/24 Schindler Informatik AG 256
136.238.187.0/24 Schindler Informatik AG 256
136.238.229.0/24 Schindler Informatik AG 256
136.238.232.0/24 Schindler Informatik AG 256
136.238.238.0/24 Schindler Informatik AG 256
136.238.239.0/24 Schindler Informatik AG 256
136.238.240.0/24 Schindler Informatik AG 256
136.238.241.0/24 Schindler Informatik AG 256
136.238.243.0/24 Schindler Informatik AG 256
185.249.5.0/24 Lumileds Holding B.V. 256
185.249.6.0/24 Lumileds Holding B.V. 256
192.157.130.0/23 INFONET Services Corporation 512
192.157.132.0/22 POSTIPAN 1,024
192.157.136.0/21 TEXAS INSTRUMENTS 2,048
192.157.144.0/20 INTERLEAF 4,096
192.157.160.0/23 INFONET Services Corporation 512
192.237.64.0/18 INFONET Services Corporation 16,384
192.92.18.0/23 INFONET Services Corporation 512
192.92.20.0/22 INFONET Services Corporation 1,024
192.92.24.0/21 Infonet Services Corporation / INFONET Technology Services 2,048
192.92.32.0/19 INFONET Services Corporation 8,192
192.92.80.0/23 INFONET Services Corporation 512
192.92.82.0/24 INFONET Services Corporation 256
194.33.52.0/24 KANTAR DORMANT 3 LIMITED 256
195.206.69.0/24 British Telecommunications PLC 256
195.206.70.0/24 British Telecommunications PLC 256
198.137.75.0/24 INFONET Services Corporation 256
198.178.237.0/24 KANTAR 256
198.178.239.0/24 KANTAR 256
198.207.64.0/18 INFONET Services Corporation 16,384
198.207.64.0/22 INFONET Services Corporation 1,024
199.6.64.0/18 INFONET Services Corporation 16,384
203.187.128.0/19 BT-Infonet, Internet Service Provider 8,192
203.187.128.0/22 BT-GIA 1,024
203.187.145.0/24 BT GIA SNG 256
203.187.146.0/24 BT GIA SNG 256
204.140.64.0/18 INFONET Services Corporation 16,384
204.231.0.0/17 INFONET Services Corporation 32,768
204.231.128.0/18 INFONET Services Corporation 16,384
204.52.187.0/24 KANTAR 256
204.79.84.0/24 INFONET Services Corporation 256
205.248.0.0/16 INFONET Services Corporation 65,536
206.182.0.0/16 INFONET Services Corporation 65,536
206.182.128.0/18 INFONET Services Corporation 16,384
206.182.134.0/24 LEGIONS OF CHRIST 256
206.182.164.0/24 INFONET SOFTWARE SOLUTIONS 256
206.182.192.0/18 INFONET Services Corporation 16,384
207.117.0.0/16 INFONET Services Corporation 65,536
207.209.0.0/16 INFONET Services Corporation 65,536
207.209.0.0/19 INFONET Services Corporation 8,192
207.209.64.0/19 INFONET Services Corporation 8,192
209.28.0.0/16 INFONET Services Corporation 65,536
209.28.174.0/24 Internal-FW 256
61.14.0.0/18 Infonet Services Corporation 16,384
61.14.1.0/24 BT GIA 256
61.14.11.0/24 BT GIA 256
61.14.12.0/22 BT GIA 1,024
61.14.15.0/24 BT GIA 256
61.14.20.0/22 BT-GIA-AU-portable-net7 1,024
61.14.2.0/23 BT GIA 512
61.14.24.0/22 BT HK 1,024
61.14.28.0/22 BT GIA 1,024
61.14.31.0/24 BT GIA 256
61.14.32.0/22 BT GIA 1,024
61.14.34.0/24 BT GIA 256
61.14.36.0/22 BT-GIA-JP-net 1,024
61.14.36.0/24 BT-GIA-JP-net 256
61.14.39.0/24 BT-GIA-JP-net 256
61.14.40.0/22 BT ZA 1,024
61.14.4.0/22 BT GIA 1,024
61.14.44.0/22 BT-ZA 1,024
61.14.48.0/22 BT ZA 1,024
61.14.52.0/24 Bt GIA 256
61.14.7.0/24 SIMMONS & SIMMONS 256
61.14.8.0/22 BT GIA 1,024
63.250.128.0/18 INFONET Services Corporation 16,384
63.250.128.0/22 INFONET Services Corporation 1,024
63.250.131.0/24 SCHINDLER HOLDING 256
63.250.132.0/22 INFONET Services Corporation 1,024
63.250.132.0/24 DIGITPA 256
63.250.135.0/24 INFONET Services Corporation 256
63.250.136.0/22 mainsoft 1,024
63.250.140.0/22 INFONET Services Corporation 1,024
63.250.144.0/22 INFONET Services Corporation 1,024
63.250.144.0/24 UNILEVER PLC 256
63.250.147.0/24 INFONET Services Corporation 256
63.250.148.0/22 INFONET Services Corporation 1,024
63.250.151.0/24 INFONET Services Corporation 256
63.250.152.0/22 INFONET Services Corporation 1,024
63.250.155.0/24 TRIVIUM PACKAGING BV 256
63.250.156.0/22 LG CNS CO. LTD 1,024
63.250.159.0/24 COTY 256
63.250.160.0/22 INFONET Services Corporation 1,024
63.250.163.0/24 SPECSAVERS OPTICAL GROUP LIMITED 256
63.250.164.0/24 INFONET Services Corporation 256
63.250.168.0/22 INFONET Services Corporation 1,024
63.250.171.0/24 ATRADIUS 256
63.250.172.0/24 INFONET Services Corporation 256
63.250.173.0/24 INFONET Services Corporation 256

The list on this page is limited to 100 results. The totality of IPv4 ranges for this ASN is available through our ASN & IP Ranges APIs.

Netblock Company
2402:fb00:1000::/36 Infonet Services Corporation
2402:fb00:1f00::/40 Lumileds
2402:fb00:2000::/36 Infonet Services Corporation
2402:fb00:2f00::/40 Infonet Services Corporation
2402:fb00:3000::/36 Infonet Services Corporation
2402:fb00::/32 Infonet Services Corporation
2402:fb00::/36 Infonet Services Corporation
2402:fb00:3f00::/40 Infonet Services Corporation
2402:fb00:f00::/40 Infonet Services Corporation
2606:f100:1000::/36 BT Management Services
2606:f100:1f00::/40 BT Management Services
2606:f100:2000::/36 BT Management Services
2606:f100:2f00::/40 BT Management Services
2606:f100:3000::/36 BT Management Services
2606:f100::/32 BT Management Services
2606:f100::/36 BT Management Services
2606:f100:3f00::/40 BT Management Services
2606:f100:4000::/36 BT Management Services
2606:f100:4f00::/40 BT Management Services
2606:f100:5000::/36 BT Management Services
2606:f100:5f00::/40 BT Management Services
2606:f100:6000::/36 BT Management Services
2606:f100:7000::/36 BT Management Services
2606:f100:7f00::/40 BT Management Services
2606:f100:8000::/36 BT Management Services
2606:f100:8f00::/40 BT Management Services
2606:f100:9000::/36 BT Management Services
2606:f100:c000::/36 BT Management Services
2606:f100:f00::/40 BT Management Services
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WHOIS Details

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ASHandle:       AS3300
OrgID:          AS3300
ASName:         AS3300
ASNumber:       AS3300
RegDate:        0000-00-00
Updated:        0000-00-00
TechHandle:     AA00-AAAA
Source:         AAAA
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Hosted Domains

There are 55 domain names hosted across 33 IP addresses on this ASN.

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IP Address Domain Domains on this IP
207.209.182.183 ██████████ 14
198.178.239.130 ██████████ 4
192.237.77.36 ██████████ 3
204.52.187.154 ██████████ 2
204.52.187.84 ██████████ 2
198.178.237.82 ██████████ 2
203.187.142.169 ██████████ 2
203.187.133.63 ██████████ 1
198.178.239.160 ██████████ 1
192.92.53.11 ██████████ 1

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Peers

There are 123 peers for this ASN.

Peers Name
AS11271 SENCINET LATAM BRASIL LTDA
AS11845 Vox Telecom Ltd
AS12200 Rackspace Hosting
AS1299 Arelion Sweden AB
AS132337 Axclusive
AS133782 Elsevier Ltd
AS136767 BMW AG (Bayerische Motoren Werke Aktiengesellschaft)
AS1403 EBOX
AS141399 Specsavers Pty Ltd
AS14840 BR.Digital Provider
AS14907 Wikimedia Foundation Inc.
AS16552 Tiggee LLC
AS16735 ALGAR TELECOM S/A
AS18106 Viewqwest Pte Ltd
AS1828 Unitas Global
AS19151 BroadbandONE, LLC
AS1916 Rede Nacional de Ensino e Pesquisa
AS19812 BT Americas, Inc
AS199524 G-Core Labs S.A.
AS202893 Lighting INTERNET
AS212565 Specsavers Optical Group Limited
AS22548 Núcleo de Inf. e Coord. do Ponto BR - NIC.BR
AS22652 Videotron Ltee
AS22683 PHILIPS INTERNET
AS23106 AMERICAN TOWER DO BRASIL-COMUNICAÇÂO MULTIMÍDIA LT
AS23764 CTGNet
AS24482 SG.GS
AS2497 Internet Initiative Japan Inc.
AS2518 BIGLOBE Inc.
AS262462 Aranet Play
AS262791 EMI NET TELECOMUNICACOES LTDA
AS263009 FORTE TELECOM LTDA.
AS263152 MIGO TELECOM
AS263237 PowerHost Telecom SPA
AS263541 IMF NETWORK DATA LTDA - ME
AS263661 BRASIL DIGITAL SERVIÇOS DE INFORMATICA E COMERCIO
AS26380 MasterCard Technologies LLC
AS264409 GRUPO YAX
AS264479 Turbozone Internet
AS26478 Novartis Pharmaceuticals
AS266830 AIRPOINT TELECOMUNICACIONES LIMITADA
AS267613 ELETRONET S.A.
AS268976 Weclix Telecom S/A
AS269180 VIPNET Conexão
AS27000 Coty Inc.
AS28571 UNIVERSIDADE DE SAO PAULO
AS28624 PROVEDORA CMA INTERNET LTDA
AS28634 Life Tecnologia Ltda.
AS2914 NTT America, Inc.
AS30844 Liquid Telecommunications Ltd
AS328320 Kurlec Wireless (PTY) Ltd
AS32906 FACTORY MUTUAL INSURANCE COMPANY
AS3303 Swisscom (Schweiz) AG
AS33891 Core-Backbone GmbH
AS3491 PCCW Global, Inc.
AS35280 F5 Networks SARL
AS35923 Johnson & Johnson Consumer Inc.
AS36224 HCL AMERICA INC
AS36236 NetActuate, Inc
AS3741 Dimension Data
AS37468 Angola Cables
AS37697 WEBMASTERS, LDA.
AS38008 Aperture Science Limited
AS38195 Superloop
AS39120 Convergenze S.p.A.
AS393493 Lotte Biologics USA, LLC
AS399449 Kyndryl
AS40126 Molson Coors Beverage Company
AS40659 BMW of North America, LLC (Group Data Centers America)
AS40934 Fortinet Inc.
AS4229 Zenlayer Inc
AS4230 CLARO S.A.
AS42473 ANEXIA Internetdienstleistungs GmbH
AS45187 Rackspace IT Hosting AS IT Hosting Provider Hong Kong
AS45352 IP ServerOne Solutions Sdn Bhd
AS45489 Sri Lanka Telecom PLC, GLobal Peering
AS45796 UIH / BB Connect
AS4635 Hong Kong Internet Exchange--Route Server 1
AS4637 Telstra Global
AS4657 StarHub Ltd
AS4766 Korea Telecom
AS4775 Globe Telecoms
AS4826 Vocus Connect International Backbone
AS48647 Solvay SA
AS49544 i3D.net B.V
AS51185 MainStreaming SpA
AS52320 GlobeNet Cabos Submarinos Colombia, S.A.S.
AS52468 UFINET PANAMA S.A.
AS52863 UPX TECNOLOGIA LTDA
AS52873 Softdados Telecomunicações
AS53070 T-Systems do Brasil Ltda.
AS53427 TGLOBAL NETWORKS
AS55720 Gigabit Hosting Sdn Bhd
AS56665 Proximus Luxembourg S.A.
AS57304 JSC "RetnNet"
AS57463 NetIX Communications JSC
AS58057 Securebit AG
AS58453 China Mobile International Limited
AS58511 Anycast Global Backbone
AS60503 FNX Tecnologia LTDA
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ASN API ASN Database Download

Upstreams

There are 12 upstreams for this ASN.

upstreams Name
AS11271 SENCINET LATAM BRASIL LTDA
AS1299 Arelion Sweden AB
AS2914 NTT America, Inc.
AS30844 Liquid Telecommunications Ltd
AS3491 PCCW Global, Inc.
AS4637 Telstra Global
AS4657 StarHub Ltd
AS4826 Vocus Connect International Backbone
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 23 downstreams for this ASN.

Downstreams Name
AS133782 Elsevier Ltd
AS136767 BMW AG (Bayerische Motoren Werke Aktiengesellschaft)
AS141399 Specsavers Pty Ltd
AS19812 BT Americas, Inc
AS202893 Lighting INTERNET
AS212565 Specsavers Optical Group Limited
AS22683 PHILIPS INTERNET
AS26380 MasterCard Technologies LLC
AS26478 Novartis Pharmaceuticals
AS27000 Coty Inc.
AS32906 FACTORY MUTUAL INSURANCE COMPANY
AS35923 Johnson & Johnson Consumer Inc.
AS36224 HCL AMERICA INC
AS393493 Lotte Biologics USA, LLC
AS399449 Kyndryl
AS40126 Molson Coors Beverage Company
AS40659 BMW of North America, LLC (Group Data Centers America)
AS45187 Rackspace IT Hosting AS IT Hosting Provider Hong Kong
AS48647 Solvay SA
AS6220 inContact Inc.
AS72 Schlumberger Limited
AS7246 Bristol-Myers Squibb Company
AS78 BT Americas, Inc
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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 AS3300 at robtex.

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