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Autonomous System

AS36351 · IBM Cloud

Overview

AS36351 is announced on the Internet: RIPE RIS route collectors currently see 340 IPv4 prefixes and 73 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 3,626,496 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 132 upstream neighbours (transit providers or peers) and 13 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), BHARTI Airtel Ltd. (AS9498), and Arelion Sweden AB (AS1299). AS36351 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 7:02 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 174.120.0.1

The trace goes to 174.120.0.1, the first address of 174.120.0.0/14. 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 (340 prefixes)

PrefixAddresses
5.10.96.0/198,192
5.83.159.0/24256
13.116.64.0/1816,384
13.120.64.0/1816,384
13.121.64.0/1816,384
13.122.64.0/1816,384
43.245.168.0/24256
46.16.184.0/212,048
50.22.0.0/212,048
50.22.8.0/212,048
50.22.16.0/212,048
50.22.24.0/212,048
50.22.24.0/221,024
50.22.32.0/212,048
50.22.40.0/212,048
50.22.64.0/204,096
50.22.128.0/1816,384
50.22.192.0/212,048
50.22.200.0/212,048
50.22.208.0/212,048
50.97.16.0/23512
50.97.32.0/198,192
52.116.0.0/1816,384
52.116.64.0/1816,384
52.116.128.0/1816,384
52.116.128.0/204,096
52.116.192.0/1816,384
52.117.0.0/1816,384
52.117.0.0/204,096
52.117.64.0/1816,384
52.117.128.0/1816,384
52.117.179.0/24256
52.117.192.0/1816,384
52.118.0.0/1816,384
52.118.64.0/1816,384
52.118.128.0/1816,384
52.118.192.0/1816,384
62.84.171.0/24256
64.5.32.0/212,048
64.5.40.0/212,048
64.5.48.0/212,048
66.37.96.0/24256
66.98.128.0/1732,768
66.228.112.0/204,096
67.15.0.0/1665,536
67.18.0.0/1816,384
67.18.64.0/1816,384
67.18.128.0/1816,384
67.214.212.0/24256
67.214.223.0/24256
67.228.0.0/1816,384
67.228.64.0/1816,384
67.228.128.0/1816,384
67.228.192.0/1816,384
67.228.252.0/23512
67.228.254.0/23512
69.57.132.0/221,024
69.57.136.0/221,024
69.57.140.0/221,024
69.57.144.0/221,024
74.86.0.0/1665,536
75.126.0.0/1665,536
75.126.32.0/212,048
75.126.40.0/221,024
75.126.48.0/212,048
75.126.56.0/221,024
75.126.64.0/212,048
75.126.72.0/221,024
75.126.80.0/204,096
75.126.112.0/204,096
81.95.144.0/24256
89.38.52.0/24256
89.38.53.0/24256
89.38.54.0/24256
89.144.43.0/24256
103.53.196.0/24256
103.70.48.0/24256
103.106.108.0/24256
103.193.4.0/221,024
103.197.160.0/221,024
104.207.183.0/24256
104.207.188.0/24256
108.168.128.0/198,192
108.168.160.0/198,192
108.168.254.0/23512
108.229.8.0/212,048
119.81.0.0/1665,536
119.81.0.0/1816,384
119.81.64.0/1816,384
119.81.128.0/212,048
119.81.140.0/221,024
119.81.144.0/212,048
119.81.192.0/198,192
128.168.0.0/1816,384
128.168.64.0/1816,384
128.168.128.0/1816,384
128.168.192.0/221,024
129.35.190.0/24256
129.41.128.0/198,192
129.41.224.0/198,192

Showing the first 100 of 340, in address order. Complete list on RIPEstat

IPv6 prefixes (73 prefixes)

Prefix
2001:df5:9000::/48
2401:c900:1000::/40
2401:c900:1100::/40
2401:c900:1400::/40
2401:c900:1500::/40
2401:c900:1800::/40
2401:c900:1f00::/40
2401:c900:2000::/40
2401:c900:2100::/40
2401:c900:2700::/40
2401:c900:2800::/40
2401:c900:2900::/40
2401:c900:2d00::/40
2401:c900:2e00::/40
2401:c900:2f00::/40
2401:c900:3000::/40
2402:2f80::/48
2402:b180:1::/48
2403:1480:1000::/36
2403:a280:8000::/36
2403:ad80:20::/48
2602:ff1c:1::/48
2602:ff84:1::/48
2602:ff84:c::/48
2602:ff84:11::/48
2602:ff84:12::/48
2607:f0d0::/32
2607:f0d0:3::/48
2607:f0d0:6::/64
2607:f0d0:7::/48
2607:f0d0:1000::/40
2607:f0d0:1100::/40
2607:f0d0:1900::/40
2607:f0d0:1a00::/40
2607:f0d0:1b00::/40
2607:f0d0:1c00::/40
2607:f0d0:1d00::/40
2607:f0d0:1e00::/40
2607:f0d0:1f00::/40
2607:f0d0:2600::/40
2607:f0d0:2700::/40
2607:f0d0:2900::/40
2607:f0d0:3500::/40
2607:f0d0:3600::/40
2607:f0d0:3700::/40
2607:f0d0:3800::/40
2607:f0d0:3900::/40
2607:f0d0:3a00::/40
2607:f0d0:3c00::/40
2607:f0d0:3d00::/40
2607:f0d0:4100::/40
2607:f0d0:4200::/40
2607:f0d0:4500::/40
2607:f0d0:4600::/40
2620:11b:3002::/48
2803:2f40:ffff::/48
2a03:8180:1100::/40
2a03:8180:1200::/40
2a03:8180:1300::/40
2a03:8180:1400::/40
2a03:8180:1800::/40
2a03:8180:1900::/40
2a03:8180:1c00::/40
2a03:8180:1d00::/40
2a03:8180:1f00::/40
2a03:8180:2000::/40
2a03:8180:2100::/40
2a03:8180:2200::/40
2a03:8180:2700::/40
2a03:8180:2800::/40
2a03:8180:2900::/40
2a04:f400:3000::/48
2a05:dfc7:30::/48

Neighbours

Upstreams (transit or peers) (132)

ASNetworkVisibility
AS6939Hurricane Electric LLC890
AS9498BHARTI Airtel Ltd.557
AS1299Arelion Sweden AB483
AS2914NTT America, Inc.348
AS3356Level 3 Parent, LLC287
AS13335Cloudflare, Inc.276
AS32787Akamai Technologies, Inc.265
AS1221Telstra Limited116
AS9002RETN Limited114
AS4637Telstra Global73
AS6453TATA COMMUNICATIONS (AMERICA) INC71
AS13030Init7 (Switzerland) Ltd.69
AS3491PCCW Global (HK) Ltd.67
AS34549meerfarbig GmbH & Co. KG48
AS25091IP-Max SA37
AS8758Iway AG32
AS3935131173 Services AB32
AS6830LibertyGlobal Liberty Global Europe Holding B.V.31
AS8218Zayo Infrastructure France SA31
AS14840BR.Digital Telecom31
AS20764CJSC RASCOM31
AS20485Joint Stock Company TransTeleCom30
AS34019Hivane Association30
AS34177Celeste SAS30
AS34927iFog GmbH30
AS37468Angola Cables30
AS38008Aperture Science Limited30
AS5405Inter.link GmbH29
AS24961WIIT AG28
AS12956TELEFONICA GLOBAL SOLUTIONS SL27

The 30 most visible of 132.

Downstreams (customers) (13)

ASNetworkVisibility
AS17390IBM865
AS48851radware Radware Ltd707
AS219514Cennso Technologies GmbH483
AS46160Kyndryl409
AS25773RADWARE INC.394
AS204527bejuno GmbH393
AS49765Comms365 Comms365 Limited284
AS202665SMShighway Limited270
AS50524IBM Deutschland GmbH266
AS14417Landstar System Inc261
AS38719-260
AS200432-260
AS36344-171

147 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.