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Autonomous System

AS55666 · PT Media Sarana Data

Overview

AS55666 is announced on the Internet: RIPE RIS route collectors currently see 77 IPv4 prefixes and 30 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 19,712 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 7 upstream neighbours (transit providers or peers) and 30 downstream neighbours (customers or networks it carries). Its most visible upstreams are PT Sumber Data Indonesia (AS58389), PT Aplikanusa Lintasarta (AS4800), and PT.Mora Telematika Indonesia (AS23947). AS55666 was assigned by APNIC, and its registration country is Indonesia.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:48 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 49.128.176.1, the first address of 49.128.176.0/21. 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 (77 prefixes)

PrefixAddresses
43.245.184.0/221,024
43.245.184.0/24256
43.245.185.0/24256
43.245.186.0/24256
43.245.187.0/24256
43.252.156.0/221,024
49.128.176.0/212,048
49.128.176.0/23512
49.128.176.0/24256
49.128.177.0/24256
49.128.178.0/23512
49.128.179.0/24256
49.128.180.0/24256
49.128.181.0/24256
49.128.182.0/24256
49.128.183.0/24256
103.4.52.0/24256
103.4.53.0/24256
103.4.54.0/24256
103.17.244.0/221,024
103.17.244.0/23512
103.17.244.0/24256
103.17.246.0/23512
103.31.224.0/221,024
103.31.224.0/24256
103.31.225.0/24256
103.99.164.0/24256
103.140.76.0/24256
103.247.120.0/221,024
103.247.120.0/24256
103.247.122.0/24256
103.247.123.0/24256
103.249.65.0/24256
103.255.240.0/221,024
103.255.240.0/24256
103.255.241.0/24256
103.255.243.0/24256
111.68.24.0/212,048
111.68.24.0/24256
111.68.25.0/24256
111.68.26.0/24256
111.68.27.0/24256
111.68.29.0/24256
111.68.30.0/24256
111.68.31.0/24256
112.78.32.0/212,048
112.78.32.0/24256
112.78.33.0/24256
112.78.34.0/24256
112.78.35.0/24256
112.78.36.0/24256
112.78.37.0/24256
112.78.39.0/24256
116.254.112.0/24256
116.254.113.0/24256
116.254.114.0/24256
116.254.116.0/24256
116.254.117.0/24256
116.254.118.0/24256
116.254.119.0/24256
119.2.48.0/212,048
119.2.50.0/24256
119.2.52.0/24256
119.2.53.0/24256
119.2.54.0/24256
119.2.55.0/24256
202.46.148.0/221,024
202.46.148.0/24256
202.46.149.0/24256
202.46.150.0/24256
202.46.151.0/24256
202.145.6.0/23512
202.145.6.0/24256
202.145.7.0/24256
203.30.236.0/23512
203.30.236.0/24256
203.30.237.0/24256

IPv6 prefixes (30 prefixes)

Prefix
2401:1700::/32
2401:1700::/48
2401:1700:1::/48
2401:1700:3::/48
2401:1700:4::/48
2401:1700:5::/48
2401:1700:9::/48
2401:1700:c::/48
2401:1700:d::/48
2401:1700:f::/48
2401:1700:10::/48
2401:1700:11::/48
2401:1700:12::/48
2401:1700:13::/48
2401:1700:14::/48
2401:1700:15::/48
2401:1700:16::/48
2401:1700:17::/48
2401:1700:18::/48
2401:1700:19::/48
2401:1700:1a::/48
2401:1700:1b::/48
2401:1700:1c::/48
2401:1700:1d::/48
2401:1700:1e::/48
2401:1700:20::/48
2401:1700:22::/48
2401:1700:23::/48
2401:1700:7c17::/48
2401:1700:7c1f::/48

Neighbours

Upstreams (transit or peers) (7)

ASNetworkVisibility
AS58389PT Sumber Data Indonesia4,822
AS4800PT Aplikanusa Lintasarta3,460
AS23947PT.Mora Telematika Indonesia2,769
AS7713PT Telekomunikasi Indonesia1,251
AS136106PT. Mega Akses Persada1,187
AS142360PT Internet Mulia Untuk Negeri1,125
AS46054PT Wahana Lintas Nusa Persada15

Downstreams (customers) (30)

ASNetworkVisibility
AS46054PT Wahana Lintas Nusa Persada989
AS46050PT JC Indonesia798
AS142360PT Internet Mulia Untuk Negeri715
AS133827UNIVERSITAS ISLAM INDONESIA674
AS55683CV Argon Data Interkoneksi580
AS133832Universitas Mercu Buana Yogyakarta575
AS38760PT Media Sarana Akses561
AS152019PT Juragan Sembilan Sembilan Corp509
AS136112Universitas Teknologi Yogyakarta506
AS131779Bidang Data dan Sarana Informasi (BDSI) Sekjen DPR RI319
AS152062-309
AS132670-304
AS140010-304
AS152746-304
AS140463-302
AS154337-302
AS141986-301
AS149974-301
AS149709-300
AS149927-300
AS3573Accenture LLP294
AS154684-294
AS142392-278
AS45324-270
AS132645-256
AS137288-200
AS140024-170
AS131778-150
AS136843-11
AS23947PT.Mora Telematika Indonesia4

22 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.