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Autonomous System

AS45489 · Sri Lanka Telecom PLC, GLobal Peering

Overview

AS45489 is announced on the Internet: RIPE RIS route collectors currently see 2 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 768 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 93 upstream neighbours (transit providers or peers) and 18 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Arelion Sweden AB (AS1299), and NTT America, Inc. (AS2914). AS45489 was assigned by APNIC, and its registration country is Sri Lanka.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:52 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 103.87.124.1

The trace goes to 103.87.124.1, the first address of 103.87.124.0/23. 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 (2 prefixes)

PrefixAddresses
103.87.124.0/23512
203.96.163.0/24256

IPv6 prefixes (1 prefix)

Prefix
2001:df4:1b00::/48

Neighbours

Upstreams (transit or peers) (93)

ASNetworkVisibility
AS6939Hurricane Electric LLC30,029
AS1299Arelion Sweden AB23,295
AS2914NTT America, Inc.23,206
AS9002RETN Limited14,494
AS174Cogent Communications, LLC12,010
AS6461Zayo Bandwidth7,591
AS7195EDGEUNO S.A.S3,343
AS3356Level 3 Parent, LLC2,869
AS37468Angola Cables1,710
AS14840BR.Digital Telecom1,659
AS3491PCCW Global (HK) Ltd.1,414
AS33891Core-Backbone GmbH1,383
AS6453TATA COMMUNICATIONS (AMERICA) INC1,330
AS8220COLT Technology Services Group Limited1,229
AS4230CLARO S.A.1,192
AS4635Hong Kong Internet Exchange--Route Server 11,017
AS22356Durand do Brasil Ltda960
AS4637Telstra Global953
AS20485Joint Stock Company TransTeleCom864
AS137409GSL Networks Pty LTD826
AS7713PT Telekomunikasi Indonesia554
AS6797GlobalConnect AB524
AS37100SEACOM Limited500
AS20764CJSC RASCOM422
AS5405Inter.link GmbH418
AS3303Swisscom (Schweiz) AG328
AS4657-310
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC307
AS35280F5 Networks SARL291
AS13030Init7 (Switzerland) Ltd.243

The 30 most visible of 93.

Downstreams (customers) (18)

ASNetworkVisibility
AS9329Sri Lanka Telecom Internet3,491
AS24016Focus Infocom Private Limited1,297
AS45356Mobitel Pvt Ltd773
AS138984Sri Lanka Telecom Ltd660
AS9829National Internet Backbone485
AS5087Lanka Communication Services415
AS38229Lanka Education & Research Network, NREN391
AS17470Hutchison Telecommunications Lanka (Private) Limited369
AS132447234, Galle Road, Colombo 4369
AS7642DHIVEHI RAAJJEYGE GULHUN PLC193
AS18001-167
AS64049-98
AS23764CTGNet81
AS58453China Mobile International Limited27
AS7342-10
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC7
AS20473The Constant Company, LLC3
AS25091IP-Max SA1

1,968 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.