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Autonomous System

AS151347 · Aerpace

Overview

AS151347 is announced on the Internet: RIPE RIS route collectors currently see 110 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 28,160 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 4 upstream neighbours (transit providers or peers) and 10 downstream neighbours (customers or networks it carries). Its most visible upstreams are Tata Teleservices Maharashtra Ltd (AS17762), Zeroshell Networks Private Limited (AS136695), and Sify Limited (AS9583). AS151347 was assigned by APNIC, and its registration country is India.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 4:28 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 43.239.112.1, the first address of 43.239.112.0/24. 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 (110 prefixes)

PrefixAddresses
43.239.112.0/24256
43.239.113.0/24256
43.239.114.0/24256
43.239.115.0/24256
43.249.180.0/24256
43.249.181.0/24256
43.249.182.0/24256
43.249.183.0/24256
45.117.213.0/24256
45.117.214.0/24256
45.117.215.0/24256
45.124.49.0/24256
45.124.50.0/24256
103.26.169.0/24256
103.51.152.0/24256
103.51.155.0/24256
103.58.4.0/24256
103.58.5.0/24256
103.58.6.0/24256
103.110.232.0/24256
103.110.233.0/24256
103.110.234.0/24256
103.110.235.0/24256
103.142.107.0/24256
103.199.131.0/24256
103.199.136.0/24256
103.199.137.0/24256
103.199.138.0/24256
103.206.18.0/24256
103.206.19.0/24256
103.209.36.0/24256
103.209.37.0/24256
103.231.0.0/24256
103.231.1.0/24256
103.236.113.0/24256
103.236.114.0/24256
103.236.115.0/24256
110.5.72.0/24256
110.5.73.0/24256
110.5.74.0/24256
110.5.75.0/24256
110.5.76.0/24256
110.5.77.0/24256
110.5.78.0/24256
110.5.79.0/24256
137.59.70.0/24256
137.59.71.0/24256
154.84.192.0/24256
154.84.193.0/24256
154.84.194.0/24256
154.84.195.0/24256
154.84.196.0/24256
154.84.197.0/24256
154.84.198.0/24256
154.84.199.0/24256
154.84.200.0/24256
154.84.201.0/24256
154.84.202.0/24256
154.84.203.0/24256
154.84.204.0/24256
154.84.205.0/24256
154.84.206.0/24256
154.84.207.0/24256
154.84.208.0/24256
154.84.209.0/24256
154.84.210.0/24256
154.84.211.0/24256
154.84.212.0/24256
154.84.213.0/24256
154.84.214.0/24256
154.84.215.0/24256
154.84.216.0/24256
154.84.217.0/24256
154.84.218.0/24256
154.84.219.0/24256
154.84.220.0/24256
154.84.221.0/24256
154.84.222.0/24256
154.84.224.0/24256
154.84.225.0/24256
154.84.226.0/24256
154.84.227.0/24256
154.84.228.0/24256
154.84.229.0/24256
154.84.230.0/24256
154.84.231.0/24256
154.84.232.0/24256
154.84.233.0/24256
154.84.234.0/24256
154.84.235.0/24256
154.84.236.0/24256
154.84.237.0/24256
154.84.238.0/24256
154.84.239.0/24256
154.84.240.0/24256
154.84.241.0/24256
154.84.242.0/24256
154.84.243.0/24256
154.84.244.0/24256
154.84.245.0/24256

Showing the first 100 of 110, in address order. Complete list on RIPEstat

IPv6 prefixes (2 prefixes)

Prefix
2401:1a0::/32
2401:1a0:1::/48

Neighbours

Upstreams (transit or peers) (4)

ASNetworkVisibility
AS17762Tata Teleservices Maharashtra Ltd4,347
AS136695Zeroshell Networks Private Limited10
AS9583Sify Limited2
AS136334Vortex Netsol Private Limited1

Downstreams (customers) (10)

ASNetworkVisibility
AS134014NET 4 U SERVICES PVT LTD1,544
AS45194Syscon Infoway Pvt. Ltd.639
AS133315TERRAFIBER NETWORKS PRIVATE LIMITED299
AS18196Seven Star Internet Service Provider282
AS137142Rk Broadband Hifi Services Pvt Ltd264
AS134248Dmds Solutions Private Limited256
AS141271Kay Powernet Services Pvt Ltd251
AS45243F/X Wireless Technology Solutions Pvt. Ltd.237
AS141514Sancfil Technologies Internet Services Pvt.Ltd191
AS135762Clear Beam Communications Pvt. Ltd.1

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.