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Autonomous System

AS4755 · TATA Communications formerly VSNL is Leading ISP

Overview

AS4755 is announced on the Internet: RIPE RIS route collectors currently see 2,309 IPv4 prefixes and 24 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 1,764,096 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 19 upstream neighbours (transit providers or peers) and 808 downstream neighbours (customers or networks it carries). Its most visible upstreams are TATA COMMUNICATIONS (AMERICA) INC (AS6453), Sify Limited (AS9583), and F5 Networks SARL (AS35280). AS4755 was assigned by APNIC, and its registration country is India.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 14.140.0.1

The trace goes to 14.140.0.1, the first address of 14.140.0.0/14. 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 (2,309 prefixes)

PrefixAddresses
1.6.229.0/24256
1.6.230.0/24256
14.140.0.0/14262,144
14.140.4.0/23512
14.140.6.0/23512
14.140.8.0/23512
14.140.10.0/23512
14.140.12.0/23512
14.140.14.0/24256
14.140.15.0/24256
14.140.16.0/221,024
14.140.18.0/24256
14.140.20.0/221,024
14.140.24.0/221,024
14.140.27.0/24256
14.140.28.0/23512
14.140.30.0/23512
14.140.32.0/23512
14.140.32.0/24256
14.140.34.0/23512
14.140.36.0/221,024
14.140.40.0/212,048
14.140.48.0/212,048
14.140.52.0/24256
14.140.58.0/24256
14.140.64.0/212,048
14.140.72.0/221,024
14.140.80.0/23512
14.140.82.0/23512
14.140.84.0/221,024
14.140.88.0/212,048
14.140.96.0/221,024
14.140.104.0/212,048
14.140.106.0/24256
14.140.112.0/221,024
14.140.114.0/24256
14.140.116.0/23512
14.140.118.0/23512
14.140.120.0/212,048
14.140.128.0/23512
14.140.130.0/23512
14.140.132.0/24256
14.140.133.0/24256
14.140.134.0/24256
14.140.135.0/24256
14.140.140.0/23512
14.140.144.0/212,048
14.140.152.0/221,024
14.140.160.0/221,024
14.140.164.0/221,024
14.140.168.0/212,048
14.140.171.0/24256
14.140.176.0/221,024
14.140.180.0/221,024
14.140.184.0/23512
14.140.186.0/23512
14.140.188.0/23512
14.140.190.0/23512
14.140.192.0/23512
14.140.194.0/23512
14.140.196.0/23512
14.140.200.0/212,048
14.140.208.0/23512
14.140.210.0/24256
14.140.212.0/221,024
14.140.216.0/221,024
14.140.220.0/221,024
14.140.224.0/221,024
14.140.228.0/23512
14.140.230.0/24256
14.140.231.0/24256
14.140.232.0/221,024
14.140.236.0/221,024
14.140.240.0/221,024
14.140.244.0/23512
14.140.246.0/23512
14.140.248.0/23512
14.140.248.0/24256
14.140.250.0/23512
14.140.252.0/23512
14.141.0.0/23512
14.141.2.0/23512
14.141.4.0/23512
14.141.6.0/23512
14.141.8.0/221,024
14.141.8.0/24256
14.141.9.0/24256
14.141.12.0/23512
14.141.14.0/23512
14.141.16.0/23512
14.141.18.0/23512
14.141.20.0/24256
14.141.21.0/24256
14.141.22.0/23512
14.141.24.0/24256
14.141.25.0/24256
14.141.26.0/23512
14.141.28.0/24256
14.141.29.0/24256
14.141.30.0/23512

Showing the first 100 of 2,309, in address order. Complete list on RIPEstat

IPv6 prefixes (24 prefixes)

Prefix
2001:df0:7400::/48
2400:a240::/32
2403::/32
2403:0:11::/48
2403:0:14::/48
2403:0:116::/48
2403:0:118::/48
2403:0:11c::/48
2403:0:15d::/48
2403:0:205::/48
2403:0:449::/48
2403:0:44a::/48
2403:0:44b::/48
2403:0:44d::/48
2403:0:44e::/48
2403:0:44f::/48
2403:0:450::/48
2403:0:509::/48
2403:0:55c::/48
2403:0:606::/48
2403:0:639::/48
2403:0:938::/48
2405:2000:d01::/48
2604:a140:1502::/47

Neighbours

Upstreams (transit or peers) (19)

ASNetworkVisibility
AS6453TATA COMMUNICATIONS (AMERICA) INC528,178
AS9583Sify Limited84,164
AS35280F5 Networks SARL5,320
AS134674TATA PLAY BROADBAND PRIVATE LIMITED402
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC237
AS9829National Internet Backbone141
AS138296Juweriyah Networks Private Limited30
AS140641YOTTA NETWORK SERVICES PRIVATE LIMITED16
AS18229CtrlS13
AS714Apple Inc.12
AS9498BHARTI Airtel Ltd.8
AS17762-7
AS132559-7
AS6421-6
AS55836Reliance Jio Infocomm Limited5
AS152565JOY SERVICES3
AS135259-2
AS133296Web Werks India Pvt. Ltd.1
AS153759-1

Downstreams (customers) (808)

ASNetworkVisibility
AS6453TATA COMMUNICATIONS (AMERICA) INC81,855
AS45820Tata Teleservices ISP AS67,256
AS17762Tata Teleservices Maharashtra Ltd46,011
AS18229CtrlS31,425
AS17439NTT COMMUNICATIONS INDIA NETWORK SERVICES PRIVATE LIMITED26,585
AS45117Ishan's Network23,474
AS9583Sify Limited20,050
AS132770Gazon Communications India Limited17,736
AS17665ONEOTT INTERTAINMENT LIMITED11,976
AS133296Web Werks India Pvt. Ltd.11,218
AS136334-9,564
AS132116-7,039
AS133001-6,414
AS133676-5,042
AS134674-4,118
AS137085-3,823
AS55352Microscan Internet Limited3,653
AS24309-3,629
AS146943-3,248
AS20473The Constant Company, LLC3,011
AS45916-2,667
AS137109-2,632
AS135718-2,623
AS146904-2,557
AS18209-2,463
AS7494-2,334
AS45528-2,330
AS135872-2,210
AS55410Vodafone Idea Ltd1,902
AS133648-1,837

The 30 most visible of 808.

2 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.