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Autonomous System

AS38623 · ISP/IXP IN CAMBODIA WITH THE BEST VERVICE IN THERE.

Overview

AS38623 is announced on the Internet: RIPE RIS route collectors currently see 573 IPv4 prefixes and 17 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 87,296 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 30 upstream neighbours (transit providers or peers) and 6 downstream neighbours (customers or networks it carries). Its most visible upstreams are SG.GS (AS24482), NEOCOMISP LIMITED, IPTX Transit and Network Service Provider in Cambodia. (AS9902), and HGC Global Communications Limited (AS9304). AS38623 was assigned by APNIC, and its registration country is Cambodia.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 36.37.128.1

The trace goes to 36.37.128.1, the first address of 36.37.128.0/17. 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 (573 prefixes)

PrefixAddresses
36.37.128.0/1732,768
36.37.128.0/198,192
36.37.128.0/204,096
36.37.128.0/221,024
36.37.128.0/23512
36.37.128.0/24256
36.37.129.0/24256
36.37.130.0/23512
36.37.130.0/24256
36.37.131.0/24256
36.37.132.0/221,024
36.37.132.0/23512
36.37.132.0/24256
36.37.133.0/24256
36.37.134.0/23512
36.37.134.0/24256
36.37.135.0/24256
36.37.136.0/221,024
36.37.136.0/23512
36.37.136.0/24256
36.37.137.0/24256
36.37.138.0/23512
36.37.138.0/24256
36.37.139.0/24256
36.37.140.0/221,024
36.37.140.0/23512
36.37.140.0/24256
36.37.141.0/24256
36.37.142.0/23512
36.37.142.0/24256
36.37.143.0/24256
36.37.144.0/204,096
36.37.144.0/221,024
36.37.144.0/23512
36.37.144.0/24256
36.37.145.0/24256
36.37.146.0/23512
36.37.146.0/24256
36.37.147.0/24256
36.37.148.0/221,024
36.37.148.0/23512
36.37.148.0/24256
36.37.149.0/24256
36.37.150.0/23512
36.37.150.0/24256
36.37.151.0/24256
36.37.152.0/221,024
36.37.152.0/23512
36.37.152.0/24256
36.37.153.0/24256
36.37.154.0/23512
36.37.154.0/24256
36.37.155.0/24256
36.37.156.0/221,024
36.37.156.0/23512
36.37.156.0/24256
36.37.157.0/24256
36.37.158.0/23512
36.37.158.0/24256
36.37.159.0/24256
36.37.160.0/198,192
36.37.160.0/204,096
36.37.160.0/221,024
36.37.160.0/23512
36.37.160.0/24256
36.37.161.0/24256
36.37.162.0/23512
36.37.162.0/24256
36.37.163.0/24256
36.37.164.0/221,024
36.37.164.0/23512
36.37.164.0/24256
36.37.165.0/24256
36.37.166.0/23512
36.37.166.0/24256
36.37.167.0/24256
36.37.168.0/221,024
36.37.168.0/23512
36.37.168.0/24256
36.37.169.0/24256
36.37.170.0/23512
36.37.170.0/24256
36.37.171.0/24256
36.37.172.0/221,024
36.37.172.0/23512
36.37.172.0/24256
36.37.173.0/24256
36.37.174.0/23512
36.37.174.0/24256
36.37.175.0/24256
36.37.176.0/204,096
36.37.176.0/221,024
36.37.176.0/23512
36.37.176.0/24256
36.37.177.0/24256
36.37.178.0/23512
36.37.178.0/24256
36.37.179.0/24256
36.37.180.0/221,024
36.37.180.0/23512

Showing the first 100 of 573, in address order. Complete list on RIPEstat

IPv6 prefixes (17 prefixes)

Prefix
2405:8380::/32
2405:8380:113::/48
2405:8380:1000::/36
2405:8380:2000::/36
2405:8380:3000::/36
2405:8380:4000::/36
2405:8380:5000::/36
2405:8380:6000::/36
2405:8380:7000::/36
2405:8380:8000::/36
2405:8380:9000::/36
2405:8380:a000::/36
2405:8380:b000::/36
2405:8380:c000::/36
2405:8380:d000::/36
2405:8380:e000::/36
2405:8380:f000::/36

Neighbours

Upstreams (transit or peers) (30)

ASNetworkVisibility
AS24482SG.GS717
AS9902NEOCOMISP LIMITED, IPTX Transit and Network Service Provider in Cambodia.632
AS9304HGC Global Communications Limited603
AS23764CTGNet566
AS7552Viettel Group317
AS6939Hurricane Electric LLC309
AS58453China Mobile International Limited284
AS4637Telstra Global270
AS1299Arelion Sweden AB243
AS3491PCCW Global (HK) Ltd.235
AS2914NTT America, Inc.151
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC9
AS9002RETN Limited9
AS35280F5 Networks SARL8
AS33891Core-Backbone GmbH7
AS8529Zain Omantel International FZ-LLC2
AS137409GSL Networks Pty LTD2
AS4134No.31,Jin-rong Street1
AS4657StarHub Ltd1
AS9498BHARTI Airtel Ltd.1
AS9583Sify Limited1
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia1
AS15802Emirates Integrated Telecommunications Company PJSC1
AS17557Pakistan Telecommunication Company Limited1
AS20326TeraSwitch Networks Inc.1
AS24115-1
AS41095IPTP LTD1
AS64049Reliance Jio Infocomm Pte Ltd Singapore1
AS132132MyRepublic Ltd.1
AS132213-1

Downstreams (customers) (6)

ASNetworkVisibility
AS132599Ministry of Posts and Telecommunication501
AS23673Cogetel Online, Cambodia, ISP375
AS137989BigHub Co.,Ltd326
AS13335Cloudflare, Inc.265
AS43566tyntec TYNTEC S.A.C.223
AS6939Hurricane Electric LLC4

13 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.