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Autonomous System

AS30517 ยท Great Lakes Comnet, Inc.

Overview

AS30517 is announced on the Internet: RIPE RIS route collectors currently see 18 IPv4 prefixes and 5 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 39,680 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 6 upstream neighbours (transit providers or peers) and 46 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Cogent Communications, LLC (AS174), and NTT America, Inc. (AS2914). AS30517 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 18, 2026 at 2:46 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 35.128.0.1, the first address of 35.128.0.0/18. 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 (18 prefixes)

PrefixAddresses
12.27.195.0/24256
35.128.0.0/1816,384
35.128.58.0/24256
35.128.60.0/24256
64.85.144.0/204,096
64.85.160.0/212,048
72.35.40.0/212,048
72.35.48.0/204,096
172.87.32.0/221,024
209.165.240.0/23512
209.165.241.0/24256
209.165.244.0/221,024
209.165.245.0/24256
209.165.247.0/24256
209.165.248.0/212,048
209.165.248.0/24256
216.176.0.0/212,048
216.176.16.0/204,096

IPv6 prefixes (5 prefixes)

Prefix
2604:fe00::/32
2604:fe00:1::/48
2604:fe00:4::/48
2604:fe00:7::/48
2606:9780::/32

Neighbours

Upstreams (transit or peers) (6)

ASNetworkVisibility
AS1299Arelion Sweden AB3,322
AS174Cogent Communications, LLC2,340
AS2914NTT America, Inc.2,012
AS6939Hurricane Electric LLC452
AS137409GSL Networks Pty LTD4
AS8220COLT Technology Services Group Limited3

Downstreams (customers) (46)

ASNetworkVisibility
AS46293Midwest Energy & Communications487
AS398092Grand Traverse Band of Ottawa and Chippewa Indians386
AS22379Manifold Services Inc363
AS36443Aunalytics, Inc316
AS21554Wisconsin CyberLynk Network, Inc.302
AS19009OneCleveland290
AS396470Lansing Community College271
AS46970Allband Communications Cooperative268
AS54119WhiteSky Communications, LLC.263
AS29924Cedar Creek Wireless, LLC258
AS36578-258
AS394664-258
AS398401-258
AS14599-256
AS26216-256
AS32456-256
AS36338-256
AS397300-255
AS398856-250
AS46825-242
AS395594-237
AS17210-201
AS393983-147
AS40813-145
AS14893-144
AS395553-139
AS395175-134
AS53352-130
AS46252-114
AS14711-86

The 30 most visible of 46.

6 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.