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Autonomous System

AS17439 · NTT COMMUNICATIONS INDIA NETWORK SERVICES PRIVATE LIMITED

Overview

AS17439 is announced on the Internet: RIPE RIS route collectors currently see 492 IPv4 prefixes and 17 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 141,824 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 4 upstream neighbours (transit providers or peers) and 53 downstream neighbours (customers or networks it carries). Its most visible upstreams are TATA Communications formerly VSNL is Leading ISP (AS4755), BHARTI Airtel Ltd. (AS9498), and Reliance Jio Infocomm Limited (AS55836). AS17439 was assigned by APNIC, and its registration country is India.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:57 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 123.108.32.1, the first address of 123.108.32.0/19. 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 (492 prefixes)

PrefixAddresses
43.225.0.0/221,024
43.225.0.0/24256
43.225.1.0/24256
43.225.2.0/24256
43.225.3.0/24256
45.64.12.0/24256
45.64.16.0/221,024
45.251.76.0/24256
45.251.77.0/24256
45.251.78.0/24256
45.251.79.0/24256
49.213.48.0/24256
49.213.49.0/24256
103.4.208.0/221,024
103.19.52.0/24256
103.19.53.0/24256
103.30.152.0/23512
103.30.152.0/24256
103.30.154.0/24256
103.30.155.0/24256
103.43.2.0/24256
103.57.16.0/24256
103.70.160.0/221,024
103.70.160.0/24256
103.70.161.0/24256
103.70.162.0/24256
103.70.163.0/24256
103.83.220.0/221,024
103.83.220.0/24256
103.83.221.0/24256
103.83.222.0/24256
103.83.223.0/24256
103.89.249.0/24256
103.96.95.0/24256
103.96.251.0/24256
103.99.172.0/23512
103.99.172.0/24256
103.99.173.0/24256
103.100.80.0/221,024
103.100.80.0/24256
103.100.81.0/24256
103.100.82.0/24256
103.100.83.0/24256
103.114.229.0/24256
103.115.194.0/24256
103.135.36.0/24256
103.138.136.0/221,024
103.138.136.0/24256
103.138.137.0/24256
103.138.138.0/24256
103.138.139.0/24256
103.141.252.0/24256
103.143.38.0/24256
103.144.110.0/24256
103.170.114.0/24256
103.181.20.0/23512
103.214.114.0/24256
103.214.115.0/24256
103.214.122.0/23512
103.216.161.0/24256
103.216.164.0/221,024
103.225.99.0/24256
103.226.224.0/24256
103.228.103.0/24256
103.235.104.0/221,024
103.239.136.0/24256
103.239.137.0/24256
103.239.138.0/24256
103.239.139.0/24256
120.88.176.0/221,024
120.88.188.0/221,024
123.108.32.0/198,192
123.108.32.0/24256
123.108.33.0/24256
123.108.34.0/24256
123.108.35.0/24256
123.108.36.0/24256
123.108.38.0/24256
123.108.39.0/24256
123.108.42.0/24256
123.108.43.0/24256
123.108.44.0/24256
123.108.45.0/24256
123.108.46.0/24256
123.108.47.0/24256
123.108.48.0/23512
123.108.50.0/23512
123.108.52.0/221,024
123.108.53.0/24256
123.108.54.0/24256
123.108.55.0/24256
123.108.56.0/24256
123.108.57.0/24256
123.108.58.0/24256
123.108.59.0/24256
123.108.60.0/24256
123.108.62.0/24256
123.108.63.0/24256
124.153.64.0/198,192
124.153.65.0/24256

Showing the first 100 of 492, in address order. Complete list on RIPEstat

IPv6 prefixes (17 prefixes)

Prefix
2400:11e0:1::/48
2401:8800::/40
2401:8800:200::/40
2401:8800:400::/40
2401:8800:47f::/48
2401:8800:600::/40
2401:8800:800::/40
2401:8800:a00::/40
2401:8800:a00::/48
2401:8800:a03::/48
2401:8800:a50::/48
2401:8800:c00::/40
2401:8800:e00::/40
2401:8800:1000::/40
2401:8800:1100::/40
2401:8800:1200::/40
2401:8800:1400::/40

Neighbours

Upstreams (transit or peers) (4)

ASNetworkVisibility
AS4755TATA Communications formerly VSNL is Leading ISP26,585
AS9498BHARTI Airtel Ltd.16,002
AS55836Reliance Jio Infocomm Limited10,529
AS45820Tata Teleservices ISP AS100

Downstreams (customers) (53)

ASNetworkVisibility
AS17665ONEOTT INTERTAINMENT LIMITED12,637
AS134937Speed Communication3,503
AS55352Microscan Internet Limited3,416
AS132220JPR Digital Pvt. Ltd.3,306
AS132420282, Sector 192,586
AS45769D-Vois Broadband Pvt Ltd2,074
AS141514Sancfil Technologies Internet Services Pvt.Ltd2,055
AS147185INFYNIX DATA SERVICES PRIVATE LIMITED1,742
AS149535FIRST MILE DIGITAL PRIVATE LIMITED1,615
AS136373Allied It Infrastructure And Services Pvt Ltd1,223
AS55862-950
AS150027-851
AS137127-808
AS153734-798
AS138296-733
AS132986-638
AS134926-633
AS153244-525
AS150610-518
AS135269-517
AS146872-517
AS141805-516
AS135791-513
AS137146-507
AS137103-487
AS141566-343
AS137488-293
AS146859-288
AS141995-287
AS152715-285

The 30 most visible of 53.

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.