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Autonomous System

AS33650 · Comcast Cable Communications, LLC

Overview

AS33650 is announced on the Internet: RIPE RIS route collectors currently see 12 IPv4 prefixes and 108 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 4,352 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 2 upstream neighbours (transit providers or peers) and 71 downstream neighbours (customers or networks it carries). Its most visible upstreams are Comcast Cable Communications, LLC (AS7922) and Level 3 Parent, LLC (AS3356). AS33650 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 199.79.96.1, the first address of 199.79.96.0/22. 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 (12 prefixes)

PrefixAddresses
50.202.174.0/24256
50.204.37.0/24256
50.204.214.0/24256
50.207.166.0/24256
50.222.54.0/24256
50.226.76.0/23512
50.234.46.0/23512
50.238.166.0/24256
50.238.235.0/24256
64.145.72.0/24256
107.0.168.0/24256
199.79.96.0/221,024

IPv6 prefixes (108 prefixes)

Prefix
2001:559:115::/48
2001:559:137::/48
2001:559:138::/48
2001:559:179::/48
2001:559:17a::/48
2001:559:263::/48
2001:559:268::/48
2001:559:275::/48
2001:559:2a6::/48
2001:559:30e::/48
2001:559:327::/48
2001:559:332::/48
2001:559:33a::/48
2001:559:3fb::/48
2001:559:4b9::/48
2001:559:509::/48
2001:559:50e::/48
2001:559:580::/48
2001:559:5a3::/48
2001:559:5e7::/48
2001:559:5e9::/48
2001:559:73e::/48
2001:559:744::/48
2001:559:76c::/48
2001:559:7a8::/48
2001:559:7c0::/48
2001:559:7cc::/48
2001:559:7d3::/48
2001:559:7da::/48
2001:559:8004::/48
2001:559:8102::/48
2001:559:81b7::/48
2001:559:81e5::/48
2001:559:8207::/48
2001:559:82d5::/48
2001:559:82e7::/48
2001:559:8387::/48
2001:559:83f7::/48
2001:559:8474::/48
2001:559:848e::/48
2001:559:8494::/48
2001:559:84cd::/48
2001:559:8501::/48
2001:559:8530::/48
2001:559:8565::/48
2001:559:856c::/48
2001:559:856e::/48
2001:559:858c::/48
2001:559:85d5::/48
2001:559:8613::/48
2001:559:861c::/48
2001:559:8620::/48
2001:559:8664::/48
2001:559:8675::/48
2001:559:8677::/48
2001:559:8678::/48
2001:559:8679::/48
2001:559:868d::/48
2001:559:8697::/48
2001:559:8699::/48
2001:559:869a::/48
2001:559:86a4::/48
2001:559:86b2::/48
2001:559:8708::/48
2001:559:870d::/48
2001:559:8721::/48
2001:559:8724::/48
2001:559:8746::/48
2001:559:87a0::/48
2001:559:87b5::/48
2001:559:87cb::/48
2001:559:c07e::/48
2001:559:c07f::/48
2001:559:c0bb::/48
2001:559:c0e1::/48
2001:559:c0fe::/48
2001:559:c20e::/48
2001:559:c211::/48
2001:559:c213::/48
2001:559:c216::/48
2001:559:c217::/48
2001:559:c226::/48
2001:559:c233::/48
2001:559:c239::/48
2001:559:c240::/48
2001:559:c248::/48
2001:559:c24b::/48
2001:559:c255::/48
2001:559:c275::/48
2001:559:c28b::/48
2001:559:c28e::/48
2001:559:c29a::/48
2001:559:c2cd::/48
2001:559:c30f::/48
2001:559:c32b::/48
2001:559:c35c::/48
2001:559:c389::/48
2001:559:c3d5::/48
2001:559:c411::/48
2001:559:c456::/48

Showing the first 100 of 108, in address order. Complete list on RIPEstat

Neighbours

Upstreams (transit or peers) (2)

ASNetworkVisibility
AS7922Comcast Cable Communications, LLC7,686
AS3356Level 3 Parent, LLC2,490

Downstreams (customers) (71)

ASNetworkVisibility
AS20940Akamai International B.V.612
AS14203Juniper Networks, Inc.524
AS400240NEEBU Networks308
AS396402MultiCare Health System280
AS40410FRIT259
AS36040Google LLC257
AS18625Data I/O Corporation256
AS11307Recreational Equipment Inc.254
AS15307Childrens Hospital and Regional Medical Center254
AS20168Precor Incorporated254
AS32092-254
AS40391-254
AS55214-254
AS395240-254
AS10632-253
AS16763-253
AS33529-253
AS36075-253
AS63029-253
AS396258-253
AS397804-253
AS395617-252
AS395974-252
AS399716-248
AS62801-247
AS393272-247
AS11270-246
AS393786-246
AS396489-246
AS22317-243

The 30 most visible of 71.

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.