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Autonomous System

AS4181 · TDS TELECOM

Overview

AS4181 is announced on the Internet: RIPE RIS route collectors currently see 83 IPv4 prefixes and 4 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 1,809,152 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 22 upstream neighbours (transit providers or peers) and 42 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), GTT Communications Inc. (AS3257), and Hurricane Electric LLC (AS6939). AS4181 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

Trace a route to this networkOpen in the BGP viewerWHOIS of 69.128.0.1

The trace goes to 69.128.0.1, the first address of 69.128.0.0/14. 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 (83 prefixes)

PrefixAddresses
24.40.80.0/204,096
24.49.96.0/204,096
24.49.128.0/204,096
24.49.160.0/204,096
24.52.0.0/212,048
24.52.8.0/221,024
24.52.18.0/23512
24.52.20.0/221,024
24.52.32.0/221,024
24.54.128.0/204,096
24.54.144.0/221,024
24.54.148.0/23512
24.54.160.0/221,024
24.54.164.0/23512
24.54.168.0/221,024
24.54.180.0/221,024
24.54.184.0/212,048
24.56.160.0/221,024
24.56.170.0/23512
24.56.176.0/221,024
24.56.180.0/23512
24.56.188.0/23512
24.75.192.0/212,048
24.224.64.0/1816,384
24.236.32.0/212,048
24.236.52.0/221,024
40.161.0.0/1665,536
50.21.192.0/204,096
64.17.68.0/221,024
64.17.72.0/23512
64.17.76.0/221,024
64.17.80.0/204,096
64.35.192.0/204,096
64.50.224.0/198,192
64.83.160.0/198,192
66.173.0.0/1732,768
66.220.96.0/198,192
66.222.0.0/1732,768
67.204.128.0/1816,384
67.217.8.0/212,048
67.217.16.0/23512
68.71.160.0/198,192
69.11.128.0/1732,768
69.21.0.0/1665,536
69.128.0.0/14262,144
72.0.160.0/198,192
72.35.128.0/198,192
74.211.0.0/1816,384
74.211.64.0/198,192
75.100.0.0/1665,536
96.60.0.0/15131,072
129.189.0.0/1665,536
134.140.0.0/1665,536
134.215.0.0/1665,536
135.131.0.0/1665,536
135.134.0.0/15131,072
139.135.0.0/198,192
146.174.0.0/1732,768
157.212.0.0/1665,536
159.94.0.0/1665,536
159.112.0.0/1732,768
167.237.0.0/1665,536
184.60.0.0/15131,072
192.154.94.0/24256
198.59.191.0/24256
204.15.56.0/212,048
204.194.5.0/24256
204.246.0.0/204,096
206.197.131.0/24256
206.206.144.0/24256
208.73.88.0/212,048
208.100.128.0/1816,384
208.117.112.0/204,096
209.169.196.0/23512
209.169.202.0/23512
209.169.204.0/221,024
209.169.216.0/23512
209.169.220.0/221,024
216.87.224.0/204,096
216.165.128.0/1816,384
216.170.128.0/1732,768
216.228.160.0/198,192
217.143.0.0/1665,536

IPv6 prefixes (4 prefixes)

Prefix
2600:3400::/28
2602:81b:f0de::/48
2604:ad00::/32
2610:1f0::/32

Neighbours

Upstreams (transit or peers) (22)

ASNetworkVisibility
AS1299Arelion Sweden AB4,328
AS3257GTT Communications Inc.1,821
AS6939Hurricane Electric LLC1,228
AS3303Swisscom (Schweiz) AG221
AS9002RETN Limited99
AS6057Administracion Nacional de Telecomunicaciones76
AS60068Datacamp Limited73
AS2497Internet Initiative Japan Inc.68
AS15412Flag Telecom UK Limited41
AS8220COLT Technology Services Group Limited40
AS394256Tech Futures Interactive Inc.39
AS7575Australian Academic and Research Network (AARNet)38
AS7195EDGEUNO S.A.S34
AS137409GSL Networks Pty LTD32
AS286GTT Communications Inc.31
AS32621Twin City VoIP, Inc.30
AS13786Seabras 1 USA, LLC19
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.16
AS37468Angola Cables13
AS60171AFR-IX TELECOM S.A.6
AS6204INTERKVM HOST SRL2
AS64289-2

Downstreams (customers) (42)

ASNetworkVisibility
AS54519US Signal Company, L.L.C.907
AS14847Peck Servers, LLC448
AS396965Wildcard Corp.333
AS10359Epic Systems Corporation332
AS395086SC Data Center, Inc.283
AS395535Weiss Internet261
AS6547DCT Technologies, Inc.259
AS22582Luminex Corporation255
AS23083Ironcore, Inc.254
AS32304Natus Medical Inc.254
AS396491-254
AS46165-253
AS13516-248
AS396145-245
AS396843-244
AS16568-243
AS53931-240
AS31778-221
AS18668-217
AS21561-217
AS47039-214
AS40559-205
AS18512-202
AS11964-161
AS393377-150
AS53934-141
AS20127-139
AS21896-134
AS40055-134
AS25810-127

The 30 most visible of 42.

13 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.