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Autonomous System

AS9583 · Sify Limited

Overview

AS9583 is announced on the Internet: RIPE RIS route collectors currently see 2,190 IPv4 prefixes and 34 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 795,648 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 65 upstream neighbours (transit providers or peers) and 545 downstream neighbours (customers or networks it carries). Its most visible upstreams are Reliance Jio Infocomm Limited (AS55836), NTT America, Inc. (AS2914), and TATA Communications formerly VSNL is Leading ISP (AS4755). AS9583 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 223.30.0.1

The trace goes to 223.30.0.1, the first address of 223.30.0.0/15. 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 (2,190 prefixes)

PrefixAddresses
1.6.0.0/221,024
1.6.1.0/24256
1.6.2.0/24256
1.6.4.0/221,024
1.6.7.0/24256
1.6.8.0/221,024
1.6.9.0/24256
1.6.10.0/24256
1.6.11.0/24256
1.6.12.0/221,024
1.6.12.0/24256
1.6.13.0/24256
1.6.16.0/221,024
1.6.17.0/24256
1.6.19.0/24256
1.6.20.0/221,024
1.6.24.0/221,024
1.6.28.0/221,024
1.6.31.0/24256
1.6.32.0/221,024
1.6.36.0/221,024
1.6.40.0/221,024
1.6.42.0/24256
1.6.43.0/24256
1.6.44.0/221,024
1.6.46.0/24256
1.6.48.0/221,024
1.6.52.0/221,024
1.6.52.0/24256
1.6.54.0/24256
1.6.56.0/221,024
1.6.59.0/24256
1.6.60.0/221,024
1.6.60.0/24256
1.6.64.0/221,024
1.6.65.0/24256
1.6.66.0/24256
1.6.67.0/24256
1.6.68.0/221,024
1.6.69.0/24256
1.6.70.0/24256
1.6.71.0/24256
1.6.72.0/221,024
1.6.72.0/24256
1.6.73.0/24256
1.6.74.0/24256
1.6.75.0/24256
1.6.76.0/221,024
1.6.80.0/221,024
1.6.82.0/24256
1.6.84.0/221,024
1.6.88.0/221,024
1.6.89.0/24256
1.6.92.0/221,024
1.6.92.0/24256
1.6.93.0/24256
1.6.95.0/24256
1.6.96.0/221,024
1.6.99.0/24256
1.6.100.0/221,024
1.6.104.0/221,024
1.6.104.0/24256
1.6.105.0/24256
1.6.108.0/221,024
1.6.109.0/24256
1.6.112.0/221,024
1.6.112.0/24256
1.6.115.0/24256
1.6.116.0/221,024
1.6.118.0/24256
1.6.120.0/221,024
1.6.124.0/221,024
1.6.128.0/221,024
1.6.128.0/24256
1.6.130.0/24256
1.6.132.0/23512
1.6.132.0/24256
1.6.134.0/23512
1.6.136.0/221,024
1.6.138.0/24256
1.6.139.0/24256
1.6.140.0/221,024
1.6.141.0/24256
1.6.144.0/221,024
1.6.144.0/24256
1.6.146.0/24256
1.6.147.0/24256
1.6.148.0/221,024
1.6.152.0/221,024
1.6.156.0/221,024
1.6.156.0/24256
1.6.157.0/24256
1.6.158.0/24256
1.6.160.0/221,024
1.6.160.0/24256
1.6.161.0/24256
1.6.163.0/24256
1.6.164.0/221,024
1.6.165.0/24256
1.6.166.0/24256

Showing the first 100 of 2,190, in address order. Complete list on RIPEstat

IPv6 prefixes (34 prefixes)

Prefix
2001:e48::/32
2001:e48:11::/48
2001:e48:12::/48
2001:e48:22::/48
2001:e48:33::/48
2001:e48:40::/48
2001:e48:41::/48
2001:e48:44::/48
2001:e48:45::/48
2001:e48:46::/48
2001:e48:47::/48
2001:e48:62::/48
2001:e48:80::/48
2001:e48:81::/48
2001:e48:82::/48
2001:e48:111::/48
2001:e48:122::/48
2001:e48:144::/48
2001:e48:180::/48
2001:e48:222::/48
2001:e48:1122::/48
2001:e48:1180::/48
2001:e48:1222::/48
2001:e48:2122::/48
2001:e48:2144::/48
2001:e48:2180::/48
2001:e48:2200::/48
2001:e48:2222::/48
2001:e48:3122::/48
2001:e48:3180::/48
2001:e48:3300::/48
2001:e48:4000::/48
2001:e48:4400::/48
2001:e48:8000::/48

Neighbours

Upstreams (transit or peers) (65)

ASNetworkVisibility
AS55836Reliance Jio Infocomm Limited49,824
AS2914NTT America, Inc.20,437
AS4755TATA Communications formerly VSNL is Leading ISP20,050
AS1299Arelion Sweden AB18,860
AS6453TATA COMMUNICATIONS (AMERICA) INC7,817
AS6939Hurricane Electric LLC6,363
AS7473Singapore Telecommunications Ltd4,743
AS8220COLT Technology Services Group Limited584
AS3320Deutsche Telekom AG262
AS35280F5 Networks SARL237
AS9002RETN Limited235
AS33891Core-Backbone GmbH213
AS24482SG.GS209
AS9304HGC Global Communications Limited115
AS64049Reliance Jio Infocomm Pte Ltd Singapore103
AS17557Pakistan Telecommunication Company Limited92
AS134922-89
AS34019Hivane Association88
AS133989-86
AS20326TeraSwitch Networks Inc.73
AS8298IPng Networks GmbH59
AS25091IP-Max SA59
AS132132MyRepublic Ltd.56
AS8218Zayo Infrastructure France SA52
AS174Cogent Communications, LLC42
AS39801France IX Services SASU42
AS35625Eurofiber France SAS25
AS15802Emirates Integrated Telecommunications Company PJSC21
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC19
AS45117-19

The 30 most visible of 65.

Downstreams (customers) (545)

ASNetworkVisibility
AS4755TATA Communications formerly VSNL is Leading ISP84,164
AS6939Hurricane Electric LLC25,120
AS2914NTT America, Inc.23,109
AS1299Arelion Sweden AB12,924
AS6453TATA COMMUNICATIONS (AMERICA) INC12,394
AS58678Intech Online Private Limited11,173
AS7473Singapore Telecommunications Ltd6,936
AS17806Tire-1 IP Transit Provider of Bangladesh6,760
AS152565JOY SERVICES4,873
AS138296Juweriyah Networks Private Limited4,814
AS150748Gmax4,143
AS133278-2,504
AS153252ELXIRE2,494
AS132215-2,417
AS152547-2,311
AS141324-2,295
AS134928-2,292
AS134331-2,070
AS134375-2,061
AS133989-1,912
AS133296Web Werks India Pvt. Ltd.1,819
AS136946Weebo networks Pvt Ltd1,731
AS58778-1,683
AS135269-1,618
AS24115Equinix1,601
AS138771-1,567
AS133234-1,300
AS141524-1,293
AS45804-1,240
AS132960-1,225

The 30 most visible of 545.

112 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.