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Autonomous System

AS38794 · UIH

Overview

AS38794 is announced on the Internet: RIPE RIS route collectors currently see 142 IPv4 prefixes and 3 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 100,608 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 7 upstream neighbours (transit providers or peers) and 52 downstream neighbours (customers or networks it carries). Its most visible upstreams are UIH / BB Connect (AS45796), National Telecom Public Company Limited (AS4651), and Hurricane Electric LLC (AS6939). AS38794 was assigned by APNIC, and its registration country is Thailand.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 5:46 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 115.31.128.1, the first address of 115.31.128.0/18. 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 (142 prefixes)

PrefixAddresses
43.240.112.0/221,024
43.249.56.0/221,024
43.249.57.0/24256
43.249.60.0/221,024
43.249.64.0/23512
43.249.66.0/24256
43.249.68.0/221,024
43.249.104.0/221,024
43.249.108.0/221,024
43.249.112.0/24256
43.249.115.0/24256
43.251.204.0/221,024
43.252.180.0/221,024
45.64.88.0/221,024
45.117.208.0/221,024
45.122.48.0/221,024
45.122.48.0/24256
45.127.60.0/221,024
65.181.104.0/221,024
85.204.243.0/24256
85.204.244.0/24256
85.204.247.0/24256
85.204.250.0/24256
85.204.253.0/24256
86.107.53.0/24256
89.38.134.0/24256
89.39.91.0/24256
89.47.94.0/24256
92.114.109.0/24256
103.4.228.0/221,024
103.28.240.0/23512
103.40.132.0/221,024
103.40.134.0/24256
103.40.136.0/221,024
103.40.136.0/24256
103.40.137.0/24256
103.40.140.0/221,024
103.40.143.0/24256
103.40.144.0/221,024
103.40.144.0/24256
103.40.148.0/221,024
103.40.180.0/221,024
103.40.182.0/23512
103.40.184.0/221,024
103.40.188.0/221,024
103.41.84.0/23512
103.225.24.0/221,024
103.232.40.0/221,024
103.240.60.0/221,024
103.245.113.0/24256
103.245.114.0/23512
115.31.128.0/1816,384
115.31.128.0/198,192
115.31.132.0/24256
115.31.134.0/24256
115.31.135.0/24256
115.31.136.0/221,024
115.31.138.0/24256
115.31.143.0/24256
115.31.144.0/24256
115.31.145.0/24256
115.31.147.0/24256
115.31.148.0/24256
115.31.150.0/24256
115.31.151.0/24256
115.31.153.0/24256
115.31.154.0/24256
115.31.155.0/24256
115.31.157.0/24256
115.31.159.0/24256
115.31.160.0/198,192
115.31.160.0/24256
115.31.163.0/24256
115.31.165.0/24256
115.31.166.0/24256
115.31.172.0/24256
115.31.173.0/24256
115.31.175.0/24256
115.31.179.0/24256
115.31.181.0/24256
115.31.183.0/24256
116.193.144.0/23512
116.193.146.0/23512
116.193.148.0/23512
117.121.208.0/204,096
117.121.208.0/212,048
117.121.208.0/24256
117.121.209.0/24256
117.121.210.0/24256
117.121.211.0/24256
117.121.215.0/24256
117.121.216.0/212,048
117.121.217.0/24256
117.121.220.0/24256
117.121.222.0/24256
119.13.24.0/212,048
119.63.64.0/198,192
119.63.64.0/204,096
119.63.65.0/24256
119.63.72.0/24256

Showing the first 100 of 142, in address order. Complete list on RIPEstat

IPv6 prefixes (3 prefixes)

Prefix
2001:df0:1e::/48
2400:cd00::/32
2405:4cc1:e00::/40

Neighbours

Upstreams (transit or peers) (7)

ASNetworkVisibility
AS45796UIH / BB Connect11,599
AS4651National Telecom Public Company Limited1,646
AS6939Hurricane Electric LLC989
AS45430SBN-IIG/AWN-IIG transit provider788
AS9931National Telecom Public Company Limited79
AS63529Bangkok Neutral Internet Exchange Route Servers6
AS9505Taiwan Internet Gateway3

Downstreams (customers) (52)

ASNetworkVisibility
AS23892United Communication Industry PCL.807
AS134073The Revenue Department697
AS45248United Information Highway Co.,Ltd640
AS137545KPN AWARD564
AS38293Ministry of Foreign Affairs531
AS55938Expressway Authority of Thailand525
AS152461Department of Lands511
AS136496Dhurakij Pundit University503
AS132117Ministry of Interior426
AS24190The Stock Exchange of Thailand408
AS134100-356
AS133909-352
AS133761-345
AS132821-334
AS38034-313
AS135676-310
AS9835-309
AS140662-295
AS142609-295
AS45959-292
AS150181-286
AS132838-285
AS135670-283
AS141715-283
AS137489-282
AS141162-282
AS152465-281
AS45530-264
AS55634-254
AS138691-247

The 30 most visible of 52.

1 more neighbour appears 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.