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Autonomous System

AS132585 · SkyExchange Internet Access

Overview

AS132585 is announced on the Internet: RIPE RIS route collectors currently see 27 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 19,968 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 4 upstream neighbours (transit providers or peers) and 11 downstream neighbours (customers or networks it carries). Its most visible upstreams are PCCW Global (HK) Ltd. (AS3491), PCCW IMS Ltd (PCCW Business Internet Access) (AS4515), and ChangLian Network Technology Co., Limited (AS137443). AS132585 was assigned by APNIC, and its registration country is Hong Kong SAR China.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 4:59 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 173.248.224.1, the first address of 173.248.224.0/19. 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 (27 prefixes)

PrefixAddresses
45.195.58.0/23512
45.202.90.0/24256
45.202.91.0/24256
45.202.105.0/24256
69.172.64.0/204,096
69.172.66.0/24256
69.172.80.0/204,096
69.172.84.0/24256
69.172.94.0/24256
69.172.95.0/24256
154.81.62.0/24256
154.81.63.0/24256
154.89.133.0/24256
156.241.4.0/23512
156.241.6.0/24256
156.241.7.0/24256
173.248.224.0/198,192
173.248.224.0/212,048
173.248.224.0/24256
173.248.225.0/24256
173.248.226.0/24256
173.248.227.0/24256
173.248.228.0/24256
173.248.231.0/24256
173.248.244.0/221,024
202.180.165.0/24256
223.197.112.0/24256

IPv6 prefixes (1 prefix)

Prefix
2406:9b80::/32

Neighbours

Upstreams (transit or peers) (4)

ASNetworkVisibility
AS3491PCCW Global (HK) Ltd.3,103
AS4515PCCW IMS Ltd (PCCW Business Internet Access)77
AS137443ChangLian Network Technology Co., Limited12
AS150706Hong Kong Zhengxing Technology Co., Ltd.1

Downstreams (customers) (11)

ASNetworkVisibility
AS136758HONGKONG CENTURY-ONE LIMITED402
AS140925STAR INTELLITECH HK LIMITED364
AS136742SU LINK NETWORK CO., LIMITED362
AS141163ZHAO CHENG TECHNOLOGY (HK) CO., LIMITED357
AS139021West263 International Limited355
AS138029Shen Zhen Hu Lian Xian Feng Technology Co., Limited354
AS38814MEGA VANTAGE INFORMATION TECHNOLOGY (HONG KONG) LIMITED262
AS131524Shanghai pujv Communication Technology co., Ltd.260
AS151662Sangfor39
AS138538VPSOR-GLOBAL25
AS135386-4

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.