Autonomous System

AS4515 · PCCW IMS Ltd (PCCW Business Internet Access)

Overview

AS4515 is announced on the Internet: RIPE RIS route collectors currently see 294 IPv4 prefixes and 12 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 707,840 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 10 upstream neighbours (transit providers or peers) and 54 downstream neighbours (customers or networks it carries). Its most visible upstreams are PCCW Global (HK) Ltd. (AS3491), Hong Kong Internet Exchange--Route Server 1 (AS4635), and HKT Limited (AS4760). AS4515 was assigned by ARIN, and its registration country is Hong Kong SAR China.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:26 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this network Open in the BGP viewer WHOIS of 42.200.0.1

The trace goes to 42.200.0.1, the first address of 42.200.0.0/16. 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 (294 prefixes)

Prefix	Addresses
42.3.226.0/24	256
42.200.0.0/16	65,536
42.200.0.0/19	8,192
42.200.2.0/24	256
42.200.5.0/24	256
42.200.6.0/24	256
42.200.8.0/24	256
42.200.10.0/24	256
42.200.11.0/24	256
42.200.12.0/24	256
42.200.13.0/24	256
42.200.16.0/24	256
42.200.20.0/24	256
42.200.21.0/24	256
42.200.22.0/24	256
42.200.26.0/24	256
42.200.27.0/24	256
42.200.28.0/24	256
42.200.29.0/24	256
42.200.30.0/24	256
42.200.31.0/24	256
42.200.32.0/19	8,192
42.200.48.0/24	256
42.200.49.0/24	256
42.200.50.0/24	256
42.200.52.0/24	256
42.200.53.0/24	256
42.200.62.0/24	256
43.254.64.0/24	256
43.254.65.0/24	256
43.254.66.0/24	256
43.254.67.0/24	256
58.152.0.0/21	2,048
58.153.255.0/24	256
59.153.172.0/24	256
62.112.28.0/24	256
72.35.252.0/23	512
103.5.195.0/24	256
103.74.124.0/24	256
103.74.125.0/24	256
103.74.126.0/24	256
103.74.127.0/24	256
103.109.104.0/24	256
103.137.177.0/24	256
103.177.70.0/24	256
103.226.56.0/24	256
113.28.0.0/16	65,536
113.28.0.0/19	8,192
113.28.32.0/19	8,192
113.28.64.0/19	8,192
113.28.71.0/24	256
113.28.86.0/24	256
113.28.87.0/24	256
113.28.90.0/24	256
113.28.91.0/24	256
113.28.92.0/24	256
113.28.94.0/24	256
113.28.96.0/19	8,192
113.28.102.0/24	256
113.28.103.0/24	256
113.28.104.0/24	256
113.28.109.0/24	256
113.28.110.0/24	256
113.28.111.0/24	256
113.28.128.0/19	8,192
113.28.137.0/24	256
113.28.140.0/24	256
113.28.160.0/19	8,192
113.28.162.0/24	256
113.28.163.0/24	256
113.28.169.0/24	256
113.28.173.0/24	256
113.28.174.0/24	256
113.28.192.0/19	8,192
113.28.224.0/19	8,192
113.28.224.0/22	1,024
113.28.232.0/24	256
113.28.250.0/24	256
117.48.193.0/24	256
117.48.194.0/24	256
117.48.219.0/24	256
117.48.235.0/24	256
120.132.116.0/24	256
121.101.168.0/22	1,024
123.49.196.0/24	256
123.49.237.0/24	256
123.49.238.0/24	256
123.49.239.0/24	256
123.49.240.0/24	256
123.49.241.0/24	256
123.49.242.0/24	256
123.49.243.0/24	256
123.49.244.0/24	256
123.49.246.0/24	256
123.49.247.0/24	256
125.214.192.0/18	16,384
125.214.200.0/22	1,024
125.215.128.0/17	32,768
125.215.192.0/24	256
125.215.193.0/24	256

Showing the first 100 of 294, in address order. Complete list on RIPEstat

IPv6 prefixes (12 prefixes)

Prefix
2400:c800::/32
2400:c800:f::/48
2400:c800:610::/44
2400:c800:4003::/48
2400:c801::/32
2400:c802::/32
2400:c803::/32
2400:c804::/32
2400:c805::/32
2403:27c0:c02::/47
2405:6c0::/48
2405:6c0:1::/48

Neighbours

Upstreams (transit or peers) (10)

AS	Network	Visibility
AS3491	PCCW Global (HK) Ltd.	8,473
AS4635	Hong Kong Internet Exchange--Route Server 1	459
AS4760	HKT Limited	256
AS8220	COLT Technology Services Group Limited	167
AS8359	MTS PJSC	60
AS9304	HGC Global Communications Limited	42
AS9930	TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia	25
AS31713	Gateway Communications	8
AS39120	Convergenze S.p.A.	3
AS41095	IPTP LTD	1

Downstreams (customers) (54)

AS	Network	Visibility
AS24334	Cyberport Hong Kong	500
AS137913	EDISON Global Networks Limited	364
AS18608	PALADYNE SYSTEMS, LLC	273
AS23730	EGL Tours Company Limited	265
AS4655	Sing Tao Electronic Daily	264
AS152712	Nanyang Commercial Bank, Limited	264
AS45761	Gamania CloudForce Co., Ltd	263
AS133054	Reasonable Software House Limited	263
AS24002	South China Morning Post Publishers Limited. English	261
AS9906	ETNet Limited	260
AS10205	-	260
AS131184	-	260
AS131234	-	260
AS132364	-	260
AS132549	-	260
AS138921	-	260
AS139262	-	260
AS152854	-	260
AS395189	-	260
AS9242	-	259
AS23881	-	255
AS134368	-	211
AS150666	-	160
AS64033	-	151
AS12222	Akamai Technologies, Inc.	149
AS40513	-	148
AS131337	-	141
AS136726	-	138
AS23648	-	129
AS133852	-	120

The 30 most visible of 54.

4 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.