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Autonomous System

AS151338 ยท POLONETWORK LIMITED

Overview

AS151338 is announced on the Internet: RIPE RIS route collectors currently see 30 IPv4 prefixes and 21 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 7,424 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 13 upstream neighbours (transit providers or peers) and 8 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Nearoute Limited (AS51847), and 91TELECOM LTD (AS197213). AS151338 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 11:06 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 154.40.60.1, the first address of 154.40.60.0/23. 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 (30 prefixes)

PrefixAddresses
23.142.200.0/24256
23.145.24.0/24256
82.108.73.0/24256
82.139.221.0/24256
82.139.224.0/24256
82.139.225.0/24256
82.139.234.0/24256
82.139.235.0/24256
82.139.236.0/24256
82.139.238.0/24256
82.139.242.0/24256
82.139.246.0/24256
85.237.70.0/24256
87.229.64.0/24256
141.11.132.0/24256
141.11.133.0/24256
150.241.204.0/24256
150.241.205.0/24256
150.241.206.0/24256
150.241.207.0/24256
154.40.60.0/23512
154.40.60.0/24256
154.40.61.0/24256
154.40.63.0/24256
208.75.134.0/24256
208.75.135.0/24256
212.60.156.0/24256
212.60.158.0/24256
213.145.82.0/24256
213.145.87.0/24256

IPv6 prefixes (21 prefixes)

Prefix
2400:70e0:bab::/48
2400:70e0:baf::/48
2400:70e0:b000::/48
2400:8a20:123::/48
2400:8a20:124::/48
2400:8a20:125::/48
2400:8a20:1a0::/44
2407:d840:20::/48
2407:d840:21::/48
2407:d840:200::/40
2a0c:9a40:9200::/46
2a0c:9a40:9204::/48
2a0c:9a40:9205::/48
2a0c:9a40:9210::/48
2a12:6e40:eff0::/44
2a12:6e40:eff1::/48
2a13:a5c7:3700::/40
2a13:a5c7:3710::/48
2a13:b487:4f00::/40
2a13:b487:5000::/40
2a14:67c1:b600::/40

Neighbours

Upstreams (transit or peers) (13)

ASNetworkVisibility
AS6939Hurricane Electric LLC2,257
AS51847Nearoute Limited1,661
AS19721391TELECOM LTD945
AS983Akari Networks LLC765
AS48266Catixs Catixs Ltd760
AS63023GTHost432
AS26042FiberState, LLC352
AS138997Eons Data Communications Limited254
AS214454PoloNetwork Limited167
AS17433Hytron Network Services Limited109
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC47
AS9002RETN Limited41
AS137409GSL Networks Pty LTD5

Downstreams (customers) (8)

ASNetworkVisibility
AS214454PoloNetwork Limited750
AS203923HOYOVERSE NETWORK LTD652
AS197196PANSTAR CLOUD LIMITED584
AS46829Lamhosting LLC549
AS153725Tenonet (Hangzhou) Co Ltd537
AS50385HaloCloud Network Limited461
AS61112AkileCloud AKILE LTD115
AS150173PoloCloud Computing (Hong Kong) Limited12

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.