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Autonomous System

AS4058 · CITIC Telecom International CPC Limited

Overview

AS4058 is announced on the Internet: RIPE RIS route collectors currently see 206 IPv4 prefixes and 14 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 271,104 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 37 upstream neighbours (transit providers or peers) and 13 downstream neighbours (customers or networks it carries). Its most visible upstreams are TATA COMMUNICATIONS (AMERICA) INC (AS6453), NTT America, Inc. (AS2914), and Level 3 Parent, LLC (AS3356). AS4058 was assigned by ARIN, and its registration country is Hong Kong SAR China.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:44 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 152.101.0.1

The trace goes to 152.101.0.1, the first address of 152.101.0.0/16. 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 (206 prefixes)

PrefixAddresses
38.125.165.0/24256
103.31.22.0/24256
152.101.0.0/1665,536
152.101.0.0/1732,768
152.101.1.0/24256
152.101.4.0/24256
152.101.6.0/24256
152.101.7.0/24256
152.101.8.0/24256
152.101.20.0/24256
152.101.24.0/24256
152.101.31.0/24256
152.101.38.0/24256
152.101.40.0/23512
152.101.40.0/24256
152.101.41.0/24256
152.101.54.0/24256
152.101.60.0/24256
152.101.61.0/24256
152.101.67.0/24256
152.101.70.0/24256
152.101.74.0/24256
152.101.80.0/23512
152.101.81.0/24256
152.101.87.0/24256
152.101.94.0/24256
152.101.95.0/24256
152.101.96.0/24256
152.101.114.0/24256
152.101.125.0/24256
152.101.127.0/24256
152.101.128.0/1732,768
152.101.135.0/24256
152.101.136.0/23512
152.101.136.0/24256
152.101.137.0/24256
152.101.138.0/24256
152.101.139.0/24256
152.101.157.0/24256
152.101.158.0/24256
152.101.162.0/24256
152.101.166.0/24256
152.101.167.0/24256
152.101.168.0/212,048
152.101.168.0/24256
152.101.169.0/24256
152.101.177.0/24256
152.101.179.0/24256
152.101.198.0/24256
152.101.201.0/24256
152.101.204.0/221,024
152.101.254.0/23512
202.53.133.0/24256
202.66.0.0/1732,768
202.66.0.0/1816,384
202.66.30.0/24256
202.66.31.0/24256
202.66.32.0/24256
202.66.35.0/24256
202.66.37.0/24256
202.66.38.0/24256
202.66.56.0/23512
202.66.58.0/24256
202.66.64.0/1816,384
202.66.67.0/24256
202.66.80.0/24256
202.66.87.0/24256
202.66.110.0/24256
202.66.117.0/24256
202.66.119.0/24256
202.66.124.0/23512
202.66.124.0/24256
202.66.125.0/24256
202.66.126.0/24256
202.66.127.0/24256
202.66.192.0/1816,384
202.66.192.0/198,192
202.66.200.0/24256
202.66.203.0/24256
202.66.204.0/24256
202.66.205.0/24256
202.66.206.0/24256
202.66.224.0/198,192
202.72.0.0/198,192
202.72.0.0/204,096
202.72.6.0/24256
202.72.9.0/24256
202.72.13.0/24256
202.72.14.0/24256
202.72.16.0/204,096
202.73.0.0/221,024
202.73.0.0/23512
202.73.1.0/24256
202.73.2.0/23512
202.73.3.0/24256
202.76.0.0/1732,768
202.76.0.0/1816,384
202.76.4.0/24256
202.76.11.0/24256
202.76.23.0/24256

Showing the first 100 of 206, in address order. Complete list on RIPEstat

IPv6 prefixes (14 prefixes)

Prefix
2403:2c00::/32
2403:2c00:3::/48
2403:2c00:4::/48
2403:2c00:7::/48
2403:2c00:9::/48
2403:2c00:a::/48
2403:2c00:b::/48
2403:2c00:8000::/36
2403:2c00:9000::/36
2403:2c00:a000::/36
2403:2c00:c000::/36
2403:2c00:e000::/36
2403:2c00:f01f::/48
2403:2c00:fffb::/48

Neighbours

Upstreams (transit or peers) (37)

ASNetworkVisibility
AS6453TATA COMMUNICATIONS (AMERICA) INC1,616
AS2914NTT America, Inc.1,367
AS3356Level 3 Parent, LLC1,140
AS6939Hurricane Electric LLC924
AS3327CITIC Telecom CPC Netherlands B.V.767
AS4657StarHub Ltd670
AS30844Liquid Telecommunications Ltd553
AS174Cogent Communications, LLC517
AS3741Dimension Data284
AS13335Cloudflare, Inc.272
AS9304HGC Global Communications Limited259
AS3257GTT Communications Inc.192
AS4635Hong Kong Internet Exchange--Route Server 1123
AS9918-98
AS4609-74
AS8359MTS PJSC36
AS24482SG.GS25
AS35280F5 Networks SARL25
AS7473Singapore Telecommunications Ltd23
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC16
AS9002RETN Limited6
AS24429Taobao - Zhejiang Taobao Network Co.,Ltd6
AS33891Core-Backbone GmbH6
AS39120-5
AS55518Singapore Internet Exchange Limited3
AS286GTT Communications Inc.2
AS20326TeraSwitch Networks Inc.2
AS137409GSL Networks Pty LTD2
AS9498BHARTI Airtel Ltd.1
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia1

The 30 most visible of 37.

Downstreams (customers) (13)

ASNetworkVisibility
AS10099China Unicom Global1,075
AS134700Sinoycloud Limited635
AS133475New York University ASN468
AS58779i4HK Limited361
AS59352Austreme Technology Limited260
AS38866Mediterranean Shipping Company (Hong Kong) Limited254
AS132702TUV Rheinland Hong Kong Ltd.250
AS4590825/F TungWai Commercial Building171
AS4828OCBC Bank (Hong Kong) Limited154
AS134449Dah Sing Bank, Limited138
AS17776-4
AS17554-2
AS6939Hurricane Electric LLC1

18 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.