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Autonomous System

AS1267 · WIND TRE S.P.A.

Overview

AS1267 is announced on the Internet: RIPE RIS route collectors currently see 220 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 7,419,136 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 100 upstream neighbours (transit providers or peers) and 1,028 downstream neighbours (customers or networks it carries). Its most visible upstreams are Level 3 Parent, LLC (AS3356), Arelion Sweden AB (AS1299), and TELECOM ITALIA SPARKLE S.p.A. (AS6762). AS1267 was assigned by ARIN, and its registration country is Italy.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 6:56 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 151.48.0.1

The trace goes to 151.48.0.1, the first address of 151.48.0.0/12. 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 (220 prefixes)

PrefixAddresses
2.156.0.0/1816,384
2.156.64.0/1816,384
2.156.128.0/1816,384
2.156.192.0/1816,384
2.157.0.0/1816,384
2.157.64.0/1816,384
2.157.128.0/1816,384
2.157.192.0/1816,384
2.158.0.0/1816,384
2.158.64.0/1816,384
2.158.128.0/1816,384
2.158.192.0/1816,384
2.159.0.0/1816,384
2.159.64.0/1816,384
2.159.128.0/1816,384
2.159.192.0/1816,384
5.77.64.0/221,024
5.77.68.0/221,024
5.77.72.0/221,024
5.77.76.0/221,024
5.77.80.0/221,024
5.77.84.0/221,024
5.77.88.0/221,024
5.77.92.0/221,024
31.190.0.0/1665,536
31.191.0.0/1665,536
37.100.0.0/1665,536
37.101.0.0/1665,536
37.102.0.0/1665,536
37.103.0.0/1665,536
62.98.0.0/1665,536
81.81.0.0/1665,536
91.254.0.0/1665,536
91.255.0.0/1665,536
91.255.0.0/198,192
91.255.32.0/204,096
94.160.0.0/1665,536
94.160.0.0/1732,768
94.160.128.0/1732,768
94.161.0.0/1665,536
94.161.0.0/1732,768
94.161.128.0/1732,768
94.162.0.0/1665,536
94.162.0.0/1732,768
94.162.128.0/1732,768
94.163.0.0/1665,536
94.163.0.0/1732,768
94.163.128.0/1732,768
94.164.0.0/1665,536
94.164.0.0/1732,768
94.164.128.0/1732,768
94.165.0.0/1665,536
94.165.0.0/1732,768
94.165.128.0/1732,768
94.166.0.0/1665,536
94.166.0.0/1732,768
94.166.128.0/1732,768
94.167.0.0/1665,536
94.167.0.0/1732,768
94.167.128.0/1732,768
151.3.0.0/1665,536
151.4.0.0/1665,536
151.5.0.0/1665,536
151.6.0.0/1665,536
151.7.0.0/1665,536
151.8.0.0/1665,536
151.9.0.0/1665,536
151.10.0.0/1665,536
151.11.0.0/1665,536
151.12.0.0/1665,536
151.13.0.0/1665,536
151.13.131.0/24256
151.14.0.0/1665,536
151.15.0.0/1665,536
151.16.0.0/1665,536
151.17.0.0/1665,536
151.18.0.0/1665,536
151.19.0.0/1665,536
151.20.0.0/1665,536
151.21.0.0/1665,536
151.22.0.0/1665,536
151.23.0.0/1665,536
151.24.0.0/1665,536
151.25.0.0/1665,536
151.26.0.0/1665,536
151.27.0.0/1665,536
151.28.0.0/1665,536
151.29.0.0/1665,536
151.30.0.0/1665,536
151.31.0.0/1665,536
151.32.0.0/1665,536
151.33.0.0/1665,536
151.34.0.0/1665,536
151.35.0.0/1665,536
151.36.0.0/1665,536
151.37.0.0/1665,536
151.38.0.0/1665,536
151.39.0.0/1665,536
151.40.0.0/1665,536
151.41.0.0/1665,536

Showing the first 100 of 220, in address order. Complete list on RIPEstat

IPv6 prefixes (2 prefixes)

Prefix
2a02:b000::/23
2a0b:a540::/29

Neighbours

Upstreams (transit or peers) (100)

ASNetworkVisibility
AS3356Level 3 Parent, LLC2,583
AS1299Arelion Sweden AB2,327
AS6762TELECOM ITALIA SPARKLE S.p.A.1,271
AS6939Hurricane Electric LLC697
AS9002RETN Limited518
AS13030Init7 (Switzerland) Ltd.327
AS34549meerfarbig GmbH & Co. KG265
AS25091IP-Max SA230
AS34019Hivane Association229
AS35625Eurofiber France SAS202
AS34927iFog GmbH194
AS6461Zayo Bandwidth193
AS6777Amsterdam Internet Exchange B.V.191
AS29691-190
AS34177Celeste SAS176
AS14840BR.Digital Telecom172
AS20764CJSC RASCOM167
AS1103SURF B.V.164
AS37497Network Platforms (PTY) LTD162
AS3935131173 Services AB158
AS33891Core-Backbone GmbH156
AS5405Inter.link GmbH153
AS50304Blix Solutions AS150
AS8298IPng Networks GmbH149
AS8455atom86 BV148
AS48362Stadtwerke Feldkirch148
AS24961WIIT AG146
AS20485Joint Stock Company TransTeleCom141
AS8218Zayo Infrastructure France SA130
AS29075IELO-LIAZO SERVICES SAS124

The 30 most visible of 100.

Downstreams (customers) (1,028)

ASNetworkVisibility
AS1299Arelion Sweden AB19,953
AS3356Level 3 Parent, LLC13,208
AS6461Zayo Bandwidth8,578
AS6939Hurricane Electric LLC4,477
AS9002RETN Limited3,749
AS6762TELECOM ITALIA SPARKLE S.p.A.3,575
AS12389PJSC Rostelecom2,506
AS203201INFRASTRUCTURE ITALIA COLO S.R.L.1,881
AS7195EDGEUNO S.A.S1,351
AS50263A-Systems Sp. z o.o.1,045
AS24994-934
AS33891Core-Backbone GmbH812
AS37468Angola Cables746
AS57463NetIX NetIX Communications JSC733
AS3216PJSC "Vimpelcom"720
AS58453China Mobile International Limited673
AS4230CLARO S.A.618
AS16076-566
AS31500Global Network Management Inc533
AS12552-526
AS42515-509
AS37100SEACOM Limited426
AS30844Liquid Telecommunications Ltd383
AS6910-382
AS29050-381
AS39759-374
AS202017-346
AS4134No.31,Jin-rong Street344
AS8359MTS PJSC342
AS7713PT Telekomunikasi Indonesia341

The 30 most visible of 1,028.

171 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.