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Autonomous System

AS23956 · AmberIT Limited

Overview

AS23956 is announced on the Internet: RIPE RIS route collectors currently see 214 IPv4 prefixes and 184 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 57,344 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 5 upstream neighbours (transit providers or peers) and 66 downstream neighbours (customers or networks it carries). Its most visible upstreams are Summit Communications Ltd (AS58717), bdHUB Limited (AS58656), and Level3 Carrier Ltd. (AS58682). AS23956 was assigned by APNIC, and its registration country is Bangladesh.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:15 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 118.179.64.1, the first address of 118.179.64.0/18. 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 (214 prefixes)

PrefixAddresses
118.179.32.0/198,192
118.179.32.0/24256
118.179.33.0/24256
118.179.34.0/24256
118.179.35.0/24256
118.179.36.0/24256
118.179.37.0/24256
118.179.38.0/24256
118.179.39.0/24256
118.179.40.0/24256
118.179.41.0/24256
118.179.42.0/24256
118.179.43.0/24256
118.179.44.0/24256
118.179.45.0/24256
118.179.46.0/24256
118.179.47.0/24256
118.179.48.0/24256
118.179.49.0/24256
118.179.50.0/24256
118.179.51.0/24256
118.179.52.0/24256
118.179.53.0/24256
118.179.54.0/24256
118.179.55.0/24256
118.179.56.0/24256
118.179.58.0/24256
118.179.59.0/24256
118.179.60.0/24256
118.179.61.0/24256
118.179.62.0/24256
118.179.63.0/24256
118.179.64.0/1816,384
118.179.64.0/24256
118.179.65.0/24256
118.179.66.0/24256
118.179.67.0/24256
118.179.68.0/24256
118.179.69.0/24256
118.179.70.0/24256
118.179.71.0/24256
118.179.72.0/24256
118.179.73.0/24256
118.179.74.0/24256
118.179.75.0/24256
118.179.76.0/24256
118.179.77.0/24256
118.179.78.0/24256
118.179.79.0/24256
118.179.80.0/24256
118.179.81.0/24256
118.179.82.0/24256
118.179.83.0/24256
118.179.84.0/24256
118.179.85.0/24256
118.179.86.0/24256
118.179.87.0/24256
118.179.88.0/24256
118.179.89.0/24256
118.179.90.0/24256
118.179.91.0/24256
118.179.92.0/24256
118.179.93.0/24256
118.179.94.0/24256
118.179.95.0/24256
118.179.96.0/24256
118.179.97.0/24256
118.179.98.0/24256
118.179.99.0/24256
118.179.100.0/24256
118.179.101.0/24256
118.179.102.0/24256
118.179.103.0/24256
118.179.104.0/24256
118.179.105.0/24256
118.179.106.0/24256
118.179.107.0/24256
118.179.108.0/24256
118.179.109.0/24256
118.179.110.0/24256
118.179.112.0/24256
118.179.113.0/24256
118.179.114.0/24256
118.179.115.0/24256
118.179.116.0/24256
118.179.117.0/24256
118.179.118.0/24256
118.179.119.0/24256
118.179.120.0/24256
118.179.121.0/24256
118.179.122.0/24256
118.179.123.0/24256
118.179.124.0/24256
118.179.125.0/24256
118.179.126.0/24256
118.179.127.0/24256
118.179.128.0/1816,384
118.179.128.0/24256
118.179.129.0/24256
118.179.132.0/24256

Showing the first 100 of 214, in address order. Complete list on RIPEstat

IPv6 prefixes (184 prefixes)

Prefix
2405:7600::/36
2405:7600::/48
2405:7600:1::/48
2405:7600:2::/48
2405:7600:d::/48
2405:7600:e::/48
2405:7600:1000::/36
2405:7600:1024::/48
2405:7600:1025::/48
2405:7600:102a::/48
2405:7600:102b::/48
2405:7600:1066::/48
2405:7600:1067::/48
2405:7600:10a8::/48
2405:7600:10a9::/48
2405:7600:10ae::/48
2405:7600:10af::/48
2405:7600:10ba::/48
2405:7600:10bb::/48
2405:7600:10cc::/48
2405:7600:10cd::/48
2405:7600:10d8::/48
2405:7600:10d9::/48
2405:7600:10de::/48
2405:7600:10df::/48
2405:7600:10e4::/48
2405:7600:10e5::/48
2405:7600:2000::/36
2405:7600:201e::/48
2405:7600:2023::/48
2405:7600:2055::/48
2405:7600:208c::/48
2405:7600:2091::/48
2405:7600:209b::/48
2405:7600:20aa::/48
2405:7600:20b4::/48
2405:7600:20b9::/48
2405:7600:20be::/48
2405:7600:4000::/36
2405:7600:4000::/48
2405:7600:4001::/48
2405:7600:4020::/44
2405:7600:4030::/44
2405:7600:4040::/44
2405:7600:4050::/44
2405:7600:4060::/44
2405:7600:4070::/44
2405:7600:4080::/44
2405:7600:4090::/44
2405:7600:40a0::/44
2405:7600:40b0::/44
2405:7600:4100::/44
2405:7600:4110::/44
2405:7600:4120::/44
2405:7600:4130::/44
2405:7600:4160::/44
2405:7600:4170::/44
2405:7600:41a0::/44
2405:7600:41b0::/44
2405:7600:41c0::/44
2405:7600:41d0::/44
2405:7600:41e0::/44
2405:7600:41f0::/44
2405:7600:4200::/44
2405:7600:4210::/44
2405:7600:4220::/44
2405:7600:4230::/44
2405:7600:4240::/44
2405:7600:4250::/44
2405:7600:4260::/44
2405:7600:4270::/44
2405:7600:42a0::/44
2405:7600:42b0::/44
2405:7600:42e0::/44
2405:7600:42f0::/44
2405:7600:4340::/44
2405:7600:4350::/44
2405:7600:43e0::/44
2405:7600:43f0::/44
2405:7600:4400::/44
2405:7600:4410::/44
2405:7600:4440::/44
2405:7600:4450::/44
2405:7600:4460::/44
2405:7600:4470::/44
2405:7600:44a0::/44
2405:7600:44b0::/44
2405:7600:44c0::/44
2405:7600:44d0::/44
2405:7600:4500::/44
2405:7600:4510::/44
2405:7600:4540::/44
2405:7600:4550::/44
2405:7600:4580::/44
2405:7600:4590::/44
2405:7600:45a0::/44
2405:7600:45b0::/44
2405:7600:45c0::/44
2405:7600:45d0::/44
2405:7600:4600::/44

Showing the first 100 of 184, in address order. Complete list on RIPEstat

Neighbours

Upstreams (transit or peers) (5)

ASNetworkVisibility
AS58717Summit Communications Ltd4,340
AS58656bdHUB Limited3,552
AS58682Level3 Carrier Ltd.1,422
AS17494Telecom Operator & Internet Service Provider as well384
AS10075Fiber@Home Global Limited208

Downstreams (customers) (66)

ASNetworkVisibility
AS153610Tenbyte Limited579
AS151981BRAC UNIVERSITY308
AS64092IT Consultants PLC301
AS137519Healthcare Pharmaceuticals Ltd293
AS9651Jibon Bima Tower (4th Floor)290
AS63890Al-Arafah Islami Bank Limited289
AS38054Genuity Systems Ltd.287
AS132443Southtech Limited287
AS55531BracBank Limited286
AS151359ABG Technologies Limited286
AS63987-282
AS136426-282
AS154903-280
AS150399-279
AS136738-278
AS58581-276
AS59236-274
AS139928-251
AS132604-217
AS132801-116
AS136512-87
AS136813-64
AS138601Coloasia Limited64
AS38303-16
AS152718Cloud Point5
AS152916-4
AS64516-1
AS64519-1
AS64531-1
AS64533-1

The 30 most visible of 66.

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.