AS3300 — BT

Network type: residential

AS3300 announces 50 IPv4 prefixes covering 513,024 addresses and 18 IPv6 prefixes.

About this network

BT's continental European and global IP network (BT), operated by British Telecommunications and distinct from BT's UK consumer network.

What it's used for

• IP transit, managed WAN and enterprise connectivity for BT Global's business customers across Europe and beyond.
• Roughly half a million IPv4 addresses, mostly serving corporate customers rather than residential broadband.

Notable

• BT runs multiple ASNs. The UK domestic and BTnet side is announced separately from AS2856; 3300 is the pan-European and international business network.
• This ASN carries the lineage of BT's continental backbone, built out under the BT Ignite brand around 2000 and later absorbing the European assets of the BT/AT&T Concert joint venture after it unwound.

Interesting

• The round, low number is a coincidence of sequential allocation, but it does sit in the range handed out to the large incumbent carriers who joined the commercial internet early.

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

Announced prefixes

• 61.14.0.0/18
• 63.250.128.0/18
• 72.29.128.0/20
• 136.238.168.0/24
• 136.238.185.0/24
• 136.238.187.0/24
• 136.238.229.0/24
• 136.238.232.0/24
• 136.238.238.0/23
• 136.238.240.0/23
• 136.238.243.0/24
• 185.249.5.0/24
• 185.249.6.0/24
• 192.92.18.0/23
• 192.92.20.0/22
• 192.92.24.0/21
• 192.92.32.0/19
• 192.92.80.0/23
• 192.92.82.0/24
• 192.157.130.0/23
• 192.157.132.0/22
• 192.157.136.0/21
• 192.157.144.0/20
• 192.157.160.0/23
• 192.237.64.0/18
• 194.33.52.0/24
• 195.206.69.0/24
• 195.206.70.0/24
• 198.137.75.0/24
• 198.178.237.0/24
• 198.178.239.0/24
• 198.207.64.0/18
• 199.6.64.0/18
• 203.187.128.0/19
• 204.52.187.0/24
• 204.79.84.0/24
• 204.140.64.0/18
• 204.231.0.0/18
• 204.231.64.0/19
• 204.231.96.0/20
• 204.231.113.0/24
• 204.231.114.0/23
• 204.231.116.0/22
• 204.231.120.0/21
• 204.231.128.0/18
• 205.248.0.0/16
• 206.182.0.0/16
• 207.117.0.0/16
• 207.209.0.0/16
• 209.28.0.0/16
• 2402:fb00::/33
• 2402:fb00:8200::/39
• 2402:fb00:8600::/39
• 2402:fb00:8900::/40
• 2402:fb00:8a00::/39
• 2402:fb00:8c00::/38
• 2402:fb00:9000::/36
• 2402:fb00:a000::/35
• 2402:fb00:c400::/38
• 2402:fb00:c800::/37
• 2402:fb00:d000::/36
• 2402:fb00:e000::/35
• 2606:f100::/32
• 2606:f100:d200::/39
• 2606:f100:e000::/38
• 2606:f100:e600::/39
• 2606:f100:e800::/37
• 2606:f100:f000::/36

Upstream networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS4637 Telstra Global
• AS9002 RETN Limited
• AS3491 PCCW Global (HK) Ltd.
• AS4657 StarHub Ltd
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS1403 EBOX
• AS22652 Videotron Ltee
• AS3303 Swisscom (Schweiz) AG
• AS2497 Internet Initiative Japan Inc.
• AS30844 Liquid Telecommunications Ltd
• AS33891 Core-Backbone GmbH
• AS14907 Wikimedia Foundation Inc.
• AS6461 Zayo Bandwidth
• AS24482 SG.GS
• AS55720 Gigabit Hosting Sdn Bhd
• AS20473 The Constant Company, LLC
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS57463 NetIX Communications JSC
• AS9304 HGC Global Communications Limited
• AS37721 Virtual Technologies & Solutions
• AS31713 Gateway Communications
• AS37100 SEACOM Limited

Downstream networks

• AS7246 Bristol-Myers Squibb Company
• AS72 Schlumberger Limited
• AS136767 BMW AG (Bayerische Motoren Werke Aktiengesellschaft)
• AS22683 Koninklijke Philips N.V.
• AS18872 Veritas Technologies LLC
• AS40659 BMW of North America, LLC (Group Data Centers America)
• AS399449 Kyndryl
• AS78 BT Americas, Inc
• AS212565 Specsavers Optical Group Limited
• AS141399 Specsavers Pty Ltd
• AS27000 Coty Inc.
• AS393493 Lotte Biologics USA, LLC
• AS26478 Novartis Pharmaceuticals
• AS133782 Elsevier Ltd
• AS55290 Depository Trust & Clearing Corporation
• AS6220 inContact Inc.
• AS45187 Rackspace IT Hosting AS IT Hosting Provider Hong Kong
• AS40126 Molson Coors Beverage Company
• AS26380 MasterCard Technologies LLC

Adjacent networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS4637 Telstra Global
• AS3491 PCCW Global (HK) Ltd.
• AS9002 RETN Limited
• AS4657 StarHub Ltd
• AS7246 Bristol-Myers Squibb Company
• AS72 Schlumberger Limited
• AS136767 BMW AG (Bayerische Motoren Werke Aktiengesellschaft)
• AS1403 EBOX
• AS22652 Videotron Ltee
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS22683 Koninklijke Philips N.V.
• AS18872 Veritas Technologies LLC
• AS40659 BMW of North America, LLC (Group Data Centers America)
• AS3303 Swisscom (Schweiz) AG
• AS78 BT Americas, Inc
• AS399449 Kyndryl
• AS2497 Internet Initiative Japan Inc.
• AS45187 Rackspace IT Hosting AS IT Hosting Provider Hong Kong
• AS14907 Wikimedia Foundation Inc.
• AS33891 Core-Backbone GmbH
• AS30844 Liquid Telecommunications Ltd
• AS141399 Specsavers Pty Ltd

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• NAPAfrica IX Johannesburg — Johannesburg, South Africa
• Equinix Internet Exchange Singapore — Singapore, Singapore
• Equinix Internet Exchange Ashburn — Ashburn, United States
• Hong Kong Internet Exchange — Hong Kong, China
• JPIX Tokyo — Tokyo, Japan
• Toronto Internet Exchange — Toronto, Canada
• Equinix Internet Exchange Chicago — Chicago, United States
• Equinix Internet Exchange Sydney — Sydney, Australia
• Equinix Internet Exchange Hong Kong — Hong Kong, China
• Equinix Internet Exchange Dallas — Dallas, United States
• New York International Internet Exchange — New York, United States
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States
• Equinix Internet Exchange Miami — Miami, United States
• Equinix Internet Exchange Los Angeles — Los Angeles, United States
• Equinix Los Angeles IBX — Los Angeles, United States
• Equinix-LA(former Paix) — Los Angeles, United States