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Autonomous System

AS17501 · WorldLink Communications Pvt Ltd

Overview

AS17501 is announced on the Internet: RIPE RIS route collectors currently see 207 IPv4 prefixes and 16 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 74,752 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 1 upstream neighbour (transit providers or peers) and 37 downstream neighbours (customers or networks it carries). Its most visible upstream is WorldLink International Transit Services (AS45274). AS17501 was assigned by APNIC, and its registration country is Nepal.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:25 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 27.34.0.1, the first address of 27.34.0.0/17. 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 (207 prefixes)

PrefixAddresses
27.34.0.0/1732,768
27.34.0.0/1816,384
27.34.0.0/221,024
27.34.4.0/221,024
27.34.8.0/221,024
27.34.16.0/221,024
27.34.20.0/221,024
27.34.24.0/221,024
27.34.28.0/221,024
27.34.32.0/24256
27.34.33.0/24256
27.34.34.0/24256
27.34.35.0/24256
27.34.36.0/24256
27.34.37.0/24256
27.34.38.0/24256
27.34.39.0/24256
27.34.40.0/24256
27.34.41.0/24256
27.34.42.0/24256
27.34.43.0/24256
27.34.44.0/24256
27.34.45.0/24256
27.34.46.0/24256
27.34.47.0/24256
27.34.48.0/24256
27.34.49.0/24256
27.34.50.0/24256
27.34.51.0/24256
27.34.52.0/24256
27.34.53.0/24256
27.34.54.0/24256
27.34.55.0/24256
27.34.57.0/24256
27.34.58.0/24256
27.34.59.0/24256
27.34.60.0/24256
27.34.61.0/24256
27.34.62.0/24256
27.34.63.0/24256
27.34.64.0/1816,384
27.34.64.0/198,192
27.34.64.0/204,096
27.34.64.0/23512
27.34.64.0/24256
27.34.65.0/24256
27.34.70.0/24256
27.34.80.0/204,096
27.34.90.0/23512
27.34.90.0/24256
27.34.91.0/24256
27.34.100.0/24256
27.34.101.0/24256
27.34.102.0/24256
27.34.104.0/24256
27.34.106.0/24256
27.34.107.0/24256
27.34.108.0/24256
27.34.109.0/24256
27.34.110.0/23512
27.34.112.0/221,024
27.34.120.0/212,048
27.34.121.0/24256
27.34.122.0/23512
27.34.124.0/221,024
27.34.125.0/24256
27.34.126.0/24256
72.9.128.0/204,096
72.9.130.0/24256
72.9.140.0/24256
72.9.141.0/24256
72.9.142.0/24256
103.211.148.0/23512
103.211.149.0/24256
103.254.184.0/221,024
103.254.184.0/24256
103.254.185.0/24256
103.254.186.0/24256
103.254.187.0/24256
124.41.192.0/1816,384
124.41.192.0/198,192
124.41.192.0/24256
124.41.193.0/24256
124.41.194.0/24256
124.41.196.0/24256
124.41.197.0/24256
124.41.198.0/24256
124.41.199.0/24256
124.41.200.0/24256
124.41.202.0/24256
124.41.203.0/24256
124.41.204.0/24256
124.41.205.0/24256
124.41.206.0/24256
124.41.208.0/24256
124.41.209.0/24256
124.41.210.0/24256
124.41.211.0/24256
124.41.212.0/24256
124.41.213.0/24256

Showing the first 100 of 207, in address order. Complete list on RIPEstat

IPv6 prefixes (16 prefixes)

Prefix
2400:1a00::/32
2400:1a00::/36
2400:1a00::/48
2400:1a00:4::/48
2400:1a00:1000::/36
2400:1a00:2000::/36
2400:1a00:3000::/36
2400:1a00:4000::/36
2400:1a00:5000::/36
2400:1a00:6000::/36
2400:1a00:7000::/36
2400:1a00:8000::/36
2400:1a00:8000::/48
2400:1a00:b000::/36
2400:1a00:d000::/36
2400:1a00:d200::/40

Neighbours

Upstreams (transit or peers) (1)

ASNetworkVisibility
AS45274WorldLink International Transit Services12,966

Downstreams (customers) (37)

ASNetworkVisibility
AS137187WorldLink Communications2,016
AS135337Cloud Himalaya Pvt Ltd568
AS135303N.I.T.V Streamz Pvt. Ltd545
AS139741World Fiber Net Pvt. Ltd.480
AS152307DataWorld438
AS133923Kantipur Publications Limited419
AS45845NEPAL INTERNATIONAL INTERNET GATEWAY408
AS142065Wifi Nepal Private Limited402
AS18222Data Hub Pvt. Ltd.401
AS154858Sajilo Cloud Pvt Ltd401
AS139237-316
AS151207-306
AS137580-275
AS132856-273
AS136794-273
AS136979-273
AS132270-272
AS135043-272
AS135044-272
AS139902-272
AS141032-272
AS142621-272
AS150131-272
AS150780-272
AS154541-270
AS137238-263
AS132210-255
AS149652-80
AS153861-43
AS151663-13

The 30 most visible of 37.

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.