Skip to content

Autonomous System

AS680 · Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Overview

AS680 is announced on the Internet: RIPE RIS route collectors currently see 296 IPv4 prefixes and 25 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 7,716,096 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 78 upstream neighbours (transit providers or peers) and 31 downstream neighbours (customers or networks it carries). Its most visible upstreams are NTT America, Inc. (AS2914), Level 3 Parent, LLC (AS3356), and Hurricane Electric LLC (AS6939). AS680 was assigned by ARIN, and its registration country is Germany.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:50 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 134.106.0.1, the first address of 134.106.0.0/15. 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 (296 prefixes)

PrefixAddresses
45.12.192.0/221,024
84.246.64.0/212,048
87.77.0.0/1665,536
128.7.0.0/1665,536
128.140.208.0/212,048
128.176.0.0/1665,536
129.26.0.0/1665,536
129.70.0.0/1665,536
129.217.0.0/1665,536
129.233.128.0/1816,384
129.233.202.0/24256
129.233.210.0/24256
129.233.224.0/204,096
129.247.0.0/1665,536
130.73.0.0/1665,536
130.75.0.0/1665,536
130.133.0.0/1665,536
130.149.0.0/1665,536
130.183.0.0/1665,536
131.173.0.0/1665,536
131.188.0.0/1665,536
131.220.0.0/1665,536
131.234.0.0/1665,536
132.176.0.0/1665,536
132.180.0.0/1665,536
132.187.0.0/1665,536
132.195.0.0/1665,536
132.199.0.0/1665,536
132.231.0.0/1665,536
132.252.0.0/1665,536
134.1.0.0/1665,536
134.28.0.0/1665,536
134.30.0.0/1665,536
134.91.0.0/1665,536
134.94.0.0/1665,536
134.96.0.0/1665,536
134.99.0.0/1665,536
134.99.235.0/24256
134.100.0.0/1665,536
134.102.0.0/1665,536
134.104.0.0/1665,536
134.106.0.0/15131,072
134.106.0.0/1665,536
134.107.0.0/1665,536
134.109.0.0/1665,536
134.110.0.0/1665,536
134.169.0.0/1665,536
134.176.0.0/1665,536
134.245.0.0/1665,536
136.156.96.0/198,192
136.172.0.0/1665,536
137.193.0.0/1665,536
137.248.0.0/1665,536
137.250.0.0/1665,536
139.6.0.0/1665,536
139.11.0.0/1665,536
139.13.0.0/1665,536
139.17.0.0/1665,536
139.18.0.0/1665,536
139.19.0.0/1665,536
139.20.0.0/1665,536
139.30.0.0/1665,536
139.75.0.0/1665,536
139.174.0.0/1665,536
139.191.184.0/212,048
141.4.0.0/1665,536
141.5.0.0/1665,536
141.9.0.0/1665,536
141.13.0.0/1665,536
141.14.0.0/1665,536
141.20.0.0/1665,536
141.22.0.0/1665,536
141.23.0.0/1665,536
141.24.0.0/1665,536
141.25.0.0/1665,536
141.27.0.0/1665,536
141.30.0.0/1665,536
141.32.0.0/1665,536
141.33.0.0/1665,536
141.35.0.0/1665,536
141.39.0.0/1665,536
141.41.0.0/1665,536
141.42.0.0/1665,536
141.43.0.0/1665,536
141.44.0.0/15131,072
141.44.0.0/1665,536
141.45.0.0/1665,536
141.46.0.0/1665,536
141.48.0.0/1665,536
141.50.0.0/1665,536
141.51.0.0/1665,536
141.53.0.0/1665,536
141.54.0.0/1665,536
141.55.0.0/1665,536
141.56.0.0/1665,536
141.57.0.0/1665,536
141.60.0.0/1665,536
141.61.0.0/1665,536
141.63.0.0/1665,536
141.64.0.0/1665,536

Showing the first 100 of 296, in address order. Complete list on RIPEstat

IPv6 prefixes (25 prefixes)

Prefix
2001:638::/32
2001:67c:2414::/48
2001:4cf0::/29
2a00:5ba0::/29
2a02:11f8:60::/48
2a02:11f8:61::/48
2a02:11f8:62::/48
2a02:11f8:63::/48
2a02:11f8:64::/48
2a02:11f8:65::/48
2a02:11f8:81::/48
2a02:11f8:100::/48
2a02:11f8:101::/48
2a02:11f8:102::/48
2a02:c6a0::/30
2a02:d480::/32
2a03:db80::/32
2a04:dfc0::/29
2a0a:6200::/32
2a0e:bb00::/29
2a12:c940::/29
2a12:e140::/29
2a12:eac0::/29
2a13:dd80::/29
2a14:8d80::/29

Neighbours

Upstreams (transit or peers) (78)

ASNetworkVisibility
AS2914NTT America, Inc.40,326
AS3356Level 3 Parent, LLC28,231
AS6939Hurricane Electric LLC20,391
AS6461Zayo Bandwidth15,553
AS1299Arelion Sweden AB11,386
AS9002RETN Limited8,665
AS20965GEANT Vereniging7,065
AS7195EDGEUNO S.A.S4,946
AS3216PJSC "Vimpelcom"1,873
AS33891Core-Backbone GmbH1,097
AS8220COLT Technology Services Group Limited1,064
AS5405Inter.link GmbH894
AS137409GSL Networks Pty LTD846
AS8359-579
AS6797GlobalConnect AB389
AS6910DIGI ROMANIA S.A.335
AS13030Init7 (Switzerland) Ltd.335
AS20562Broadband Hosting B.V.258
AS3303Swisscom (Schweiz) AG249
AS8218Zayo Infrastructure France SA223
AS8455atom86 BV223
AS24961WIIT AG209
AS41327Fiber Telecom S.p.A.208
AS29075-184
AS34549-175
AS25091IP-Max SA170
AS3214xTom GmbH168
AS50673Serverius Holding B.V.167
AS20764CJSC RASCOM166
AS39686Eurofiber Nederland BV164

The 30 most visible of 78.

Downstreams (customers) (31)

ASNetworkVisibility
AS12816Leibniz-Rechenzentrum701
AS5501Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.696
AS43066Information und Technik Nordrhein-Westfalen483
AS5520Universitaet zu Koeln398
AS200943Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.357
AS47610RWTH Aachen University351
AS199578Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-Landau348
AS56357Technical University of Munich344
AS210482Max-Delbrueck-Centrum fuer Molekulare Medizin in der Helmholtz-Gemeinschaft334
AS34520Deutsche Forschungsgemeinschaft e.V.323
AS34878-296
AS41289-291
AS1754-267
AS60824-265
AS31705-263
AS2117-262
AS8519-262
AS20588-262
AS207611-259
AS205046-244
AS49234-242
AS29484-229
AS41969-117
AS207592-117
AS13040-116
AS6733-81
AS20633-80
AS553Universitaet Stuttgart74
AS209499-63
AS12643-24

The 30 most visible of 31.

790 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.