AS3300 British Telecommunications PLC
General Info - AS3300
664,064
9,223,372,036,854,775,808
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 2402:fb00::/32 | 79,228,162,514,264,337,593,543,950,336 | |
| 2606:f100::/32 | 79,228,162,514,264,337,593,543,950,336 |
Upstreams
- AS1299 Arelion Sweden AB
- AS2497 Asia Pacific Network Information Centre
- AS2914 NTT America Inc.
- AS3303 Swisscom (Schweiz) AG
- AS3491 PCCW Global Inc.
- AS4637 Telstra Global
- AS4657 StarHub Ltd
- AS6461 Zayo Bandwidth
- AS6939 Hurricane Electric LLC
- AS11271 Latin American and Caribbean IP Address Regional Registry
- AS30844 Liquid Telecommunications Ltd
Downstreams
- AS72 Schlumberger Limited
- AS78 BT Americas Inc
- AS6095 Novartis Institutes for Biomedical Research Inc.
- AS6220 inContact Inc.
- AS7246 Bristol-Myers Squibb Company
- AS12200 Rackspace Hosting
- AS19812 Radianz Americas Inc.
- AS22683 Koninklijke Philips N.V.
- AS26478 Novartis Pharmaceuticals
- AS27000 Coty Inc.
- AS32906 Factory Mutual Insurance Company
- AS35923 Johnson & Johnson Consumer Inc.
- AS36224 HCL America Inc
- AS39973 International Flavors & Fragrances Inc.
- AS45187 Rackspace IT Hosting AS IT Hosting Provider Hong Kong
- AS48647 Solvay SA
- AS133013 Abbvie Inc.
- AS141399 Specsavers Pty Ltd
- AS202893 Signify Holding B.V.
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
