AS3300 British Telecommunications PLC
General Info - AS3300
381,440
9,223,372,036,854,775,808
IP Address Ranges
Netblock | Number of IPs | |
---|---|---|
61.14.0.0/18 | 16,384 | |
62.80.80.0/20 | 4,096 | |
62.180.0.0/16 | 65,536 | |
63.250.128.0/18 | 16,384 | |
72.29.128.0/20 | 4,096 | |
136.238.168.0/24 | 256 | |
136.238.185.0/24 | 256 | |
136.238.187.0/24 | 256 | |
136.238.229.0/24 | 256 | |
136.238.232.0/24 | 256 | |
136.238.238.0/23 | 512 | |
136.238.240.0/23 | 512 | |
136.238.243.0/24 | 256 | |
185.249.5.0/24 | 256 | |
185.249.6.0/24 | 256 | |
192.237.125.0/24 | 256 | |
194.33.52.0/24 | 256 | |
195.163.0.0/16 | 65,536 | |
195.184.128.0/19 | 8,192 | |
195.206.64.0/24 | 256 | |
195.206.66.0/23 | 512 | |
195.206.68.0/22 | 1,024 | |
195.206.72.0/21 | 2,048 | |
195.206.80.0/20 | 4,096 | |
198.137.75.0/24 | 256 | |
198.178.237.0/24 | 256 | |
198.178.239.0/24 | 256 | |
203.187.128.0/19 | 8,192 | |
204.52.187.0/24 | 256 | |
204.79.84.0/24 | 256 | |
206.182.128.0/17 | 32,768 | |
207.117.0.0/23 | 512 | |
207.117.2.0/24 | 256 | |
207.117.4.0/22 | 1,024 | |
207.117.8.0/21 | 2,048 | |
207.117.16.0/20 | 4,096 | |
207.117.32.0/19 | 8,192 | |
207.117.64.0/18 | 16,384 | |
207.117.128.0/17 | 32,768 | |
207.209.0.0/19 | 8,192 | |
207.209.64.0/19 | 8,192 | |
209.28.0.0/16 | 65,536 | |
213.31.181.0/24 | 256 |
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
- 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.