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Autonomous System

AS4635 · Hong Kong Internet Exchange--Route Server 1

Overview

RIPE RIS route collectors currently see no prefix originated by AS4635: as far as they can tell, the number is not announced on the Internet right now. In the paths the collectors record, it has 17 upstream neighbours (transit providers or peers) and 250 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), HGC Global Communications Limited (AS9304), and EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC (AS8966). AS4635 was assigned by APNIC, and its registration country is Hong Kong SAR China.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:57 PM UTC. This page is refreshed at most every 12 hours.

Go further

Open in the BGP viewer

No IPv4 address of this network is known right now, so there is nothing to trace to.

Announced prefixes

IPv4 prefixes (none)

None currently seen.

IPv6 prefixes (none)

None currently seen.

Neighbours

Upstreams (transit or peers) (17)

ASNetworkVisibility
AS6939Hurricane Electric LLC7,044
AS9304HGC Global Communications Limited1,477
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC769
AS63741DCNET TELECOM454
AS35280F5 Networks SARL453
AS58453China Mobile International Limited297
AS58944Telekomunikasi Indonesia International (HongKong) Limited180
AS10099China Unicom Global169
AS45903CMC Telecom Infrastructure Company99
AS4788TM TECHNOLOGY SERVICES SDN. BHD.97
AS7473Singapore Telecommunications Ltd69
AS4637Telstra Global11
AS7713PT Telekomunikasi Indonesia5
AS3216PJSC "Vimpelcom"3
AS2518BIGLOBE Inc.2
AS38478-1
AS45250Vocom International Telecommunications AP Area1

Downstreams (customers) (250)

ASNetworkVisibility
AS8359MTS PJSC1,858
AS38193Transworld Associates (Pvt.) Ltd.1,104
AS23911China Next Generation Internet Beijing IX1,098
AS9304HGC Global Communications Limited1,036
AS58717Summit Communications Ltd862
AS7713PT Telekomunikasi Indonesia708
AS58453China Mobile International Limited625
AS10103HK Broadband Network Ltd.546
AS45896Mobifone Global JSC496
AS134196ANYUN INTERNET TECHNOLOGY (HK) CO.,LIMITED478
AS4637Telstra Global461
AS2603NORDUnet459
AS4515PCCW IMS Ltd (PCCW Business Internet Access)459
AS58779i4HK Limited421
AS7545-349
AS18403-338
AS35280F5 Networks SARL327
AS38158-319
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia295
AS137367-283
AS21859Zenlayer Inc237
AS9270-235
AS10099China Unicom Global226
AS4760-217
AS45430-217
AS932-216
AS45474-213
AS38082True International Gateway Co., Ltd.192
AS55818MC-IX Matrix Internet Exchange RS-1192
AS9886-185

The 30 most visible of 250.

5 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.