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Autonomous System

AS20115 · Charter Communications LLC

Overview

AS20115 is announced on the Internet: RIPE RIS route collectors currently see 2,366 IPv4 prefixes and 2,334 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 12,542,208 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 26 upstream neighbours (transit providers or peers) and 129 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Arelion Sweden AB (AS1299), and GTT Communications Inc. (AS3257). AS20115 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 18, 2026 at 9:43 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 47.132.0.1

The trace goes to 47.132.0.1, the first address of 47.132.0.0/15. 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 (2,366 prefixes)

PrefixAddresses
9.249.28.0/221,024
16.14.224.0/221,024
16.14.228.0/221,024
16.14.228.0/24256
16.14.229.0/24256
16.14.232.0/221,024
16.14.236.0/221,024
16.14.236.0/24256
16.14.237.0/24256
16.203.0.0/1732,768
16.203.128.0/1816,384
23.84.0.0/1665,536
23.87.0.0/1665,536
24.107.0.0/1732,768
24.107.128.0/198,192
24.107.160.0/204,096
24.107.176.0/204,096
24.107.192.0/198,192
24.107.224.0/204,096
24.107.240.0/204,096
24.151.0.0/1732,768
24.151.128.0/204,096
24.151.144.0/204,096
24.151.160.0/198,192
24.151.192.0/198,192
24.151.224.0/198,192
24.158.0.0/198,192
24.158.0.0/204,096
24.158.16.0/204,096
24.158.32.0/198,192
24.158.64.0/204,096
24.158.80.0/204,096
24.158.96.0/204,096
24.158.112.0/204,096
24.158.128.0/204,096
24.158.144.0/204,096
24.158.160.0/204,096
24.158.176.0/204,096
24.158.192.0/204,096
24.158.208.0/204,096
24.158.224.0/204,096
24.158.240.0/204,096
24.159.0.0/204,096
24.159.16.0/204,096
24.159.32.0/204,096
24.159.48.0/204,096
24.159.64.0/204,096
24.159.80.0/212,048
24.159.88.0/212,048
24.159.96.0/204,096
24.159.112.0/204,096
24.159.128.0/212,048
24.159.136.0/221,024
24.159.140.0/221,024
24.159.144.0/204,096
24.159.160.0/221,024
24.159.164.0/221,024
24.159.168.0/221,024
24.159.172.0/23512
24.159.176.0/204,096
24.159.192.0/198,192
24.159.192.0/204,096
24.159.208.0/204,096
24.159.224.0/198,192
24.161.200.0/212,048
24.161.208.0/204,096
24.161.240.0/212,048
24.171.0.0/1732,768
24.176.0.0/1816,384
24.176.64.0/204,096
24.176.80.0/204,096
24.176.92.0/24256
24.176.96.0/198,192
24.176.128.0/212,048
24.176.136.0/212,048
24.176.144.0/204,096
24.176.176.0/204,096
24.176.192.0/204,096
24.176.208.0/204,096
24.176.240.0/204,096
24.177.0.0/204,096
24.177.16.0/204,096
24.177.24.0/221,024
24.177.28.0/23512
24.177.32.0/212,048
24.177.40.0/212,048
24.177.48.0/204,096
24.177.64.0/204,096
24.177.78.0/24256
24.177.79.0/24256
24.177.80.0/204,096
24.177.96.0/198,192
24.177.96.0/204,096
24.177.112.0/204,096
24.177.130.0/23512
24.177.132.0/221,024
24.177.132.0/23512
24.177.134.0/23512
24.177.136.0/212,048
24.177.144.0/204,096

Showing the first 100 of 2,366, in address order. Complete list on RIPEstat

IPv6 prefixes (2,334 prefixes)

Prefix
2600:6c04::/32
2600:6c05::/32
2600:6c06::/32
2600:6c07::/32
2600:6c08::/32
2600:6c09::/32
2600:6c09:1::/48
2600:6c0a::/32
2600:6c0b::/32
2600:6c0c::/32
2600:6c0d::/32
2600:6c10::/32
2600:6c10:4::/48
2600:6c10:9::/48
2600:6c10:a::/48
2600:6c10:f::/48
2600:6c10:11::/48
2600:6c10:16::/48
2600:6c10:17::/48
2600:6c10:27::/48
2600:6c10:28::/48
2600:6c10:29::/48
2600:6c10:2c::/48
2600:6c10:30::/48
2600:6c10:35::/48
2600:6c10:36::/48
2600:6c10:38::/48
2600:6c10:39::/48
2600:6c10:3b::/48
2600:6c10:3f::/48
2600:6c10:40::/48
2600:6c10:42::/48
2600:6c10:4c::/48
2600:6c10:4f::/48
2600:6c10:50::/48
2600:6c10:51::/48
2600:6c10:56::/48
2600:6c10:57::/48
2600:6c10:5a::/48
2600:6c10:5c::/48
2600:6c10:5e::/48
2600:6c10:61::/48
2600:6c10:65::/48
2600:6c10:66::/48
2600:6c10:6a::/48
2600:6c10:6c::/48
2600:6c10:72::/48
2600:6c10:74::/48
2600:6c10:76::/48
2600:6c10:80::/48
2600:6c10:86::/48
2600:6c10:87::/48
2600:6c10:8c::/48
2600:6c10:91::/48
2600:6c10:94::/48
2600:6c10:97::/48
2600:6c10:98::/48
2600:6c10:9d::/48
2600:6c10:a0::/48
2600:6c10:a2::/48
2600:6c10:a4::/48
2600:6c10:a7::/48
2600:6c10:a9::/48
2600:6c10:b1::/48
2600:6c10:b3::/48
2600:6c10:b7::/48
2600:6c10:b8::/48
2600:6c10:ba::/48
2600:6c10:be::/48
2600:6c10:c7::/48
2600:6c10:c8::/48
2600:6c10:cb::/48
2600:6c10:cc::/48
2600:6c10:cd::/48
2600:6c10:d2::/48
2600:6c10:d3::/48
2600:6c10:d5::/48
2600:6c10:d6::/48
2600:6c10:d8::/48
2600:6c10:d9::/48
2600:6c10:df::/48
2600:6c10:e0::/48
2600:6c10:e1::/48
2600:6c10:e3::/48
2600:6c10:e5::/48
2600:6c10:e9::/48
2600:6c10:eb::/48
2600:6c10:ec::/48
2600:6c10:f2::/48
2600:6c10:f4::/48
2600:6c10:f6::/48
2600:6c10:f7::/48
2600:6c10:f8::/48
2600:6c10:f9::/48
2600:6c10:fb::/48
2600:6c10:fc::/48
2600:6c10:fd::/48
2600:6c10:100::/48
2600:6c10:102::/48
2600:6c10:104::/48

Showing the first 100 of 2,334, in address order. Complete list on RIPEstat

Neighbours

Upstreams (transit or peers) (26)

ASNetworkVisibility
AS6939Hurricane Electric LLC39,746
AS1299Arelion Sweden AB16,773
AS3257GTT Communications Inc.15,455
AS3356Level 3 Parent, LLC3,702
AS3491PCCW Global (HK) Ltd.1,201
AS6830LibertyGlobal Liberty Global Europe Holding B.V.570
AS7843Charter Communications Inc565
AS4637Telstra Global471
AS6461Zayo Bandwidth468
AS60068Datacamp Limited246
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.237
AS4230CLARO S.A.233
AS7195EDGEUNO S.A.S188
AS2516KDDI CORPORATION175
AS286GTT Communications Inc.159
AS8220COLT Technology Services Group Limited116
AS577-45
AS137409GSL Networks Pty LTD44
AS32621-34
AS6327Shaw Communications21
AS26479-11
AS52025-8
AS7713PT Telekomunikasi Indonesia7
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC5
AS11796Airstream Communications, LLC2
AS20119Arrow Group Inc.2

Downstreams (customers) (129)

ASNetworkVisibility
AS40264Charter Communications LLC20,389
AS22974Charter Communications LLC7,547
AS20001Charter Communications Inc4,380
AS22677Charter Communications LLC3,800
AS33588Charter Communications LLC3,283
AS20231Charter Communications Inc2,612
AS11427Charter Communications Inc2,262
AS23132Charter Communications LLC2,123
AS22513Charter Communications LLC1,487
AS23222Charter Communications LLC1,033
AS22516Charter Communications LLC673
AS16787-629
AS27631-587
AS54816-552
AS393764-548
AS395572-494
AS55024-460
AS23225-452
AS18820-448
AS33391SECURITY FINANCE CORPORATION OF SPARTANBURG445
AS397418-435
AS19153-434
AS40175-408
AS32104-406
AS19115-403
AS400985-349
AS22710-344
AS27338-342
AS35988-340
AS40294-310

The 30 most visible of 129.

8 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

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.