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Autonomous System

AS11351 · Charter Communications Inc

Overview

AS11351 is announced on the Internet: RIPE RIS route collectors currently see 130 IPv4 prefixes and 11 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 4,389,888 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 1 upstream neighbour (transit providers or peers) and 88 downstream neighbours (customers or networks it carries). Its most visible upstream is Charter Communications Inc (AS7843). AS11351 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 4:56 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 74.76.0.1

The trace goes to 74.76.0.1, the first address of 74.76.0.0/14. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (130 prefixes)

PrefixAddresses
24.24.0.0/1816,384
24.25.128.0/1816,384
24.29.32.0/198,192
24.29.64.0/198,192
24.30.240.0/204,096
24.31.128.0/198,192
24.39.0.0/1816,384
24.39.64.0/198,192
24.39.96.0/212,048
24.39.160.0/198,192
24.39.192.0/1816,384
24.58.0.0/15131,072
24.92.32.0/198,192
24.92.224.0/198,192
24.93.0.0/198,192
24.93.128.0/198,192
24.94.32.0/198,192
24.97.0.0/1665,536
24.103.128.0/1816,384
24.103.192.0/198,192
24.105.160.0/198,192
24.169.0.0/1732,768
24.198.0.0/1665,536
24.213.128.0/198,192
24.213.184.0/212,048
24.213.192.0/1816,384
45.46.0.0/15131,072
47.231.32.0/198,192
47.231.96.0/204,096
50.75.0.0/1732,768
50.75.128.0/1816,384
64.30.240.0/204,096
65.185.244.0/24256
66.24.0.0/1665,536
66.66.0.0/15131,072
67.240.0.0/15131,072
67.242.0.0/1665,536
67.244.32.0/198,192
67.244.128.0/1732,768
67.246.0.0/1665,536
67.247.64.0/198,192
67.247.128.0/1732,768
67.248.0.0/15131,072
67.251.0.0/1732,768
67.252.0.0/15131,072
67.255.0.0/1665,536
68.172.0.0/1732,768
68.172.128.0/1816,384
68.172.192.0/204,096
68.175.128.0/1732,768
69.193.0.0/1732,768
69.200.0.0/1816,384
69.200.96.0/198,192
69.201.0.0/1732,768
69.204.0.0/1732,768
69.204.128.0/1816,384
69.204.192.0/198,192
69.205.192.0/221,024
69.207.0.0/1665,536
71.65.32.0/23512
71.65.34.0/23512
71.65.36.0/221,024
72.43.0.0/1816,384
72.43.64.0/198,192
72.43.192.0/1816,384
72.45.128.0/1732,768
72.224.0.0/1665,536
72.225.0.0/1816,384
72.226.128.0/1732,768
72.227.0.0/1732,768
72.228.0.0/1665,536
72.230.0.0/1665,536
72.231.128.0/1732,768
74.65.0.0/1732,768
74.65.128.0/1816,384
74.67.0.0/1665,536
74.69.0.0/1665,536
74.70.0.0/1665,536
74.74.64.0/1816,384
74.74.128.0/1732,768
74.75.0.0/1665,536
74.76.0.0/14262,144
76.37.0.0/1665,536
76.38.128.0/1732,768
76.58.20.0/23512
76.58.22.0/23512
76.178.192.0/1816,384
76.179.0.0/1665,536
76.180.0.0/1665,536
98.0.0.0/1732,768
98.1.0.0/1665,536
98.2.0.0/15131,072
98.4.0.0/15131,072
98.10.0.0/15131,072
98.13.0.0/1732,768
104.228.0.0/15131,072
108.176.64.0/1816,384
108.176.192.0/1816,384
136.223.36.0/24256
137.124.0.0/1665,536

Showing the first 100 of 130, in address order. Complete list on RIPEstat

IPv6 prefixes (11 prefixes)

Prefix
2600:5c01:e0a::/48
2600:6000:fb34::/48
2600:6001::/32
2600:6c7f:9350::/44
2602:107:6500::/40
2602:107:6510::/44
2602:107:e200::/40
2603:7080::/28
2603:70bd::/32
2604:6000::/32
2605:ed00:4c63::/48

Neighbours

Upstreams (transit or peers) (1)

ASNetworkVisibility
AS7843Charter Communications Inc21,405

Downstreams (customers) (88)

ASNetworkVisibility
AS40069ASSURED INFORMATION SECURITY, INC.627
AS46158OCM BOCES469
AS12120Amphenol Corp466
AS53519Central Maine Medical Family427
AS14437C&S WHOLESALE GROCERS INC.426
AS10250INet Solutions403
AS397932New York State Assembly399
AS92Clarkson University398
AS13588Paychex Inc.389
AS19368Thrive Operations, LLC379
AS63243-378
AS11440-349
AS25915-341
AS22970-286
AS40229-284
AS20337-275
AS33004-274
AS23086-273
AS30668-273
AS53426-273
AS53657-273
AS400411-273
AS2003-272
AS39956-272
AS46391-272
AS395908-272
AS14423-271
AS22270-271
AS40944-271
AS394372-271

The 30 most visible of 88.

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.