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Autonomous System

AS2635 · Automattic, Inc

Overview

AS2635 is announced on the Internet: RIPE RIS route collectors currently see 155 IPv4 prefixes and 48 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 38,144 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 115 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are Web Werks India Pvt. Ltd. (AS133296), Level 3 Parent, LLC (AS3356), and EDGEUNO S.A.S (AS7195). AS2635 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 4:16 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 192.0.80.1, the first address of 192.0.80.0/20. 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 (155 prefixes)

PrefixAddresses
5.100.156.0/24256
45.121.180.0/24256
45.121.181.0/24256
45.121.182.0/24256
45.121.183.0/24256
66.6.32.0/24256
66.6.34.0/24256
66.6.35.0/24256
66.6.37.0/24256
66.6.38.0/24256
66.6.39.0/24256
66.6.40.0/24256
66.6.41.0/24256
66.6.42.0/24256
66.6.43.0/24256
66.6.44.0/24256
66.6.45.0/24256
66.6.46.0/24256
66.6.47.0/24256
74.114.152.0/24256
74.114.153.0/24256
74.114.154.0/24256
74.114.155.0/24256
87.250.160.0/24256
87.250.162.0/24256
87.250.163.0/24256
87.250.164.0/24256
87.250.165.0/24256
87.250.166.0/24256
87.250.167.0/24256
87.250.168.0/24256
87.250.169.0/24256
87.250.170.0/24256
87.250.171.0/24256
87.250.172.0/24256
87.250.173.0/24256
87.250.174.0/24256
87.250.175.0/24256
87.250.176.0/23512
87.250.177.0/24256
87.250.178.0/23512
87.250.178.0/24256
87.250.179.0/24256
87.250.180.0/23512
87.250.180.0/24256
87.250.181.0/24256
87.250.182.0/23512
87.250.182.0/24256
87.250.183.0/24256
87.250.184.0/24256
87.250.185.0/24256
87.250.186.0/24256
87.250.187.0/24256
87.250.188.0/24256
87.250.189.0/24256
87.250.190.0/24256
87.250.191.0/24256
103.62.32.0/24256
103.62.33.0/24256
103.62.34.0/24256
103.62.35.0/24256
103.115.8.0/24256
103.115.9.0/24256
103.115.10.0/24256
103.115.11.0/24256
185.64.140.0/24256
185.64.141.0/24256
185.64.142.0/24256
185.64.143.0/24256
185.138.28.0/24256
185.138.29.0/24256
185.138.30.0/24256
185.138.31.0/24256
192.0.64.0/24256
192.0.65.0/24256
192.0.66.0/24256
192.0.67.0/24256
192.0.68.0/24256
192.0.69.0/24256
192.0.70.0/24256
192.0.71.0/24256
192.0.72.0/24256
192.0.73.0/24256
192.0.74.0/23512
192.0.74.0/24256
192.0.75.0/24256
192.0.76.0/24256
192.0.77.0/24256
192.0.78.0/24256
192.0.79.0/24256
192.0.80.0/204,096
192.0.80.0/24256
192.0.81.0/24256
192.0.82.0/24256
192.0.83.0/24256
192.0.84.0/24256
192.0.85.0/24256
192.0.86.0/24256
192.0.87.0/24256
192.0.88.0/24256

Showing the first 100 of 155, in address order. Complete list on RIPEstat

IPv6 prefixes (48 prefixes)

Prefix
2001:43f8:bf0::/48
2403:6b80::/48
2403:6b80:1::/48
2403:6b80:2::/48
2403:6b80:3::/48
2403:6b80:4::/48
2403:6b80:6::/48
2403:6b80:7::/48
2403:6b80:8::/48
2403:6b80:9::/48
2403:6b80:a::/48
2403:6b80:b::/48
2403:6b80:ffff::/48
2602:fdd7::/48
2602:fdd7:1::/48
2620:109:b00a::/48
2620:115:c000::/48
2620:115:c002::/48
2620:115:c003::/48
2620:115:c004::/48
2620:115:c005::/48
2620:115:c007::/48
2620:115:c008::/48
2620:115:c009::/48
2620:115:c00a::/48
2620:115:c00b::/48
2620:115:c00c::/48
2620:115:c00d::/48
2620:115:c00e::/48
2620:115:c00f::/48
2620:115:c010::/48
2620:115:c011::/48
2620:115:c012::/48
2620:115:c013::/48
2801:80:1610::/48
2a04:fa80:2::/48
2a04:fa80:3::/48
2a04:fa80:4::/48
2a04:fa80:5::/48
2a04:fa80:6::/48
2a04:fa80:7::/48
2a04:fa80:8::/48
2a04:fa80:9::/48
2a04:fa80:a::/48
2a04:fa80:b::/48
2a04:fa87:fffd::/48
2a04:fa87:fffe::/48
2a04:fa87:ffff::/48

Neighbours

Upstreams (transit or peers) (115)

ASNetworkVisibility
AS133296Web Werks India Pvt. Ltd.358
AS3356Level 3 Parent, LLC270
AS7195EDGEUNO S.A.S217
AS37100SEACOM Limited211
AS1299Arelion Sweden AB164
AS2914NTT America, Inc.137
AS30844Liquid Telecommunications Ltd131
AS9583Sify Limited112
AS6939Hurricane Electric LLC106
AS7922Comcast Cable Communications, LLC73
AS9002RETN Limited29
AS3303Swisscom (Schweiz) AG10
AS13030Init7 (Switzerland) Ltd.10
AS25091IP-Max SA10
AS8220COLT Technology Services Group Limited8
AS33891Core-Backbone GmbH8
AS6461Zayo Bandwidth6
AS34549meerfarbig GmbH & Co. KG6
AS5405Inter.link GmbH5
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC5
AS20485Joint Stock Company TransTeleCom5
AS4-4
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH4
AS8218Zayo Infrastructure France SA4
AS12389PJSC Rostelecom4
AS29169GANDI SAS4
AS29632Netassist International EOOD4
AS34019Hivane Association4
AS37468Angola Cables4
AS41441-4

The 30 most visible of 115.

Downstreams (customers) (0)

None seen.

149 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.