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Autonomous System

AS31027 · GlobalConnect A/S

Overview

AS31027 is announced on the Internet: RIPE RIS route collectors currently see 132 IPv4 prefixes and 13 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 399,360 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 27 upstream neighbours (transit providers or peers) and 175 downstream neighbours (customers or networks it carries). Its most visible upstreams are GlobalConnect AB (AS6797), Arelion Sweden AB (AS1299), and Hurricane Electric LLC (AS6939). AS31027 was assigned by RIPE NCC, and its registration country is Denmark.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:12 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 94.18.0.1, the first address of 94.18.0.0/16. 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 (132 prefixes)

PrefixAddresses
5.56.144.0/204,096
5.83.24.0/212,048
5.179.80.0/204,096
37.25.64.0/212,048
37.28.136.0/212,048
37.49.128.0/204,096
37.140.219.0/24256
45.67.92.0/221,024
46.32.128.0/204,096
46.32.156.0/221,024
62.12.32.0/204,096
62.12.48.0/212,048
62.116.192.0/198,192
62.122.160.0/212,048
62.164.128.0/24256
62.164.129.0/24256
77.233.224.0/198,192
78.31.32.0/212,048
78.111.160.0/204,096
78.153.160.0/198,192
80.88.128.0/204,096
80.243.112.0/204,096
82.192.160.0/198,192
83.136.88.0/212,048
83.151.128.0/1816,384
85.202.64.0/204,096
87.104.192.0/198,192
87.104.233.0/24256
87.104.234.0/23512
87.104.236.0/221,024
87.116.0.0/1816,384
88.212.64.0/1816,384
89.221.160.0/204,096
91.143.112.0/204,096
91.198.144.0/24256
91.199.217.0/24256
91.209.156.0/24256
91.209.166.0/24256
91.212.129.0/24256
91.224.174.0/23512
91.230.68.0/221,024
91.231.147.0/24256
91.233.142.0/23512
91.235.139.0/24256
91.236.123.0/24256
91.238.206.0/24256
91.240.185.0/24256
91.240.186.0/23512
91.240.189.0/24256
92.43.72.0/221,024
92.62.192.0/204,096
93.90.0.0/204,096
93.157.204.0/24256
93.176.64.0/1816,384
94.18.0.0/1665,536
109.202.128.0/198,192
130.185.128.0/204,096
134.65.172.0/24256
152.115.0.0/198,192
152.115.4.0/221,024
152.115.31.0/24256
152.115.32.0/198,192
152.115.64.0/1816,384
152.115.128.0/1732,768
176.67.184.0/212,048
176.222.232.0/212,048
178.20.222.0/24256
185.20.240.0/221,024
185.27.204.0/221,024
185.29.168.0/221,024
185.31.4.0/221,024
185.34.12.0/221,024
185.34.132.0/221,024
185.67.128.0/221,024
185.72.140.0/24256
185.72.141.0/24256
185.73.72.0/24256
185.73.74.0/24256
185.92.240.0/221,024
185.93.84.0/24256
185.93.87.0/24256
185.125.80.0/221,024
185.126.108.0/221,024
185.163.196.0/24256
185.199.236.0/221,024
185.200.8.0/221,024
185.203.233.0/24256
185.212.208.0/221,024
185.216.156.0/221,024
185.218.83.0/24256
185.221.28.0/221,024
185.253.84.0/221,024
188.120.64.0/198,192
192.66.60.0/221,024
193.3.132.0/24256
193.3.252.0/23512
193.41.156.0/24256
193.47.81.0/24256
193.53.85.0/24256
193.104.246.0/24256

Showing the first 100 of 132, in address order. Complete list on RIPEstat

IPv6 prefixes (13 prefixes)

Prefix
2a00:4961::/32
2a00:97e0::/32
2a00:b3a1::/32
2a01:4f0::/32
2a01:ef80::/32
2a02:188::/29
2a03:6947:600::/40
2a06:b740::/29
2a06:b740::/32
2a06:c080::/29
2a09:7440::/32
2a10:cf80:1001::/48
2a10:cf80:2001::/48

Neighbours

Upstreams (transit or peers) (27)

ASNetworkVisibility
AS6797GlobalConnect AB73,523
AS1299Arelion Sweden AB42,837
AS6939Hurricane Electric LLC31,005
AS3356Level 3 Parent, LLC26,303
AS12552GlobalConnect AB24,093
AS4637Telstra Global3,668
AS33891Core-Backbone GmbH3,238
AS5405Inter.link GmbH1,581
AS8220COLT Technology Services Group Limited1,332
AS3303Swisscom (Schweiz) AG898
AS3214xTom GmbH664
AS20562Broadband Hosting B.V.370
AS24961WIIT AG355
AS50304Blix Solutions AS339
AS60068Datacamp Limited289
AS6777-279
AS9002RETN Limited253
AS5400-218
AS20764CJSC RASCOM184
AS2116GLOBALCONNECT AS165
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH64
AS6663Euroweb Romania S.R.L.58
AS35280F5 Networks SARL49
AS8434Telenor Sverige AB45
AS12389PJSC Rostelecom37
AS23764CTGNet12
AS29169GANDI SAS1

Downstreams (customers) (175)

ASNetworkVisibility
AS2116GLOBALCONNECT AS4,129
AS202914adeodc Adeo Datacenter ApS3,062
AS44869FIBIA P/S2,530
AS199545Stacket Group ApS1,648
AS12552GlobalConnect AB1,440
AS3342Cibicom A/S702
AS216230infowise INFOWISE SERVICES ApS670
AS4745460 North ApS618
AS198622Adform A/S613
AS206082Danish Crown A/S580
AS42236-576
AS50783-576
AS49309-539
AS44803-538
AS47304-534
AS56496-456
AS62121-456
AS58282-442
AS21060-425
AS25384-423
AS199374-406
AS6797-399
AS6834-393
AS42525-388
AS201503-385
AS42697-381
AS204575-377
AS208551-377
AS3240-376
AS25111-375

The 30 most visible of 175.

181 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.