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Autonomous System

AS34977 · PROCONO S.A.

Overview

AS34977 is announced on the Internet: RIPE RIS route collectors currently see 164 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 96,768 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 9 upstream neighbours (transit providers or peers) and 14 downstream neighbours (customers or networks it carries). Its most visible upstreams are TATA COMMUNICATIONS (AMERICA) INC (AS6453), Cogent Communications, LLC (AS174), and Hurricane Electric LLC (AS6939). AS34977 was assigned by RIPE NCC, and its registration country is Spain.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:48 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 212.225.128.1, the first address of 212.225.128.0/17. 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 (164 prefixes)

PrefixAddresses
5.23.12.0/221,024
5.23.12.0/24256
37.61.144.0/204,096
37.61.144.0/23512
37.61.146.0/23512
37.61.155.0/24256
37.61.159.0/24256
46.37.64.0/198,192
46.37.69.0/24256
46.37.70.0/23512
46.37.76.0/23512
46.37.78.0/23512
46.37.80.0/24256
46.37.81.0/24256
46.37.84.0/24256
46.37.92.0/23512
46.37.94.0/24256
86.106.0.0/212,048
86.106.64.0/212,048
87.101.88.0/24256
87.101.89.0/24256
87.101.90.0/24256
87.101.91.0/24256
88.212.188.0/24256
88.212.190.0/24256
89.32.112.0/212,048
89.32.118.0/24256
89.35.136.0/212,048
89.35.137.0/24256
89.35.138.0/23512
89.35.140.0/23512
89.35.142.0/23512
89.36.2.0/23512
89.36.4.0/23512
89.36.6.0/24256
89.36.7.0/24256
89.37.72.0/212,048
89.37.72.0/24256
89.37.73.0/24256
89.37.74.0/24256
89.38.16.0/212,048
89.38.16.0/24256
89.38.17.0/24256
89.38.18.0/24256
89.38.19.0/24256
89.38.20.0/24256
89.38.21.0/24256
89.38.22.0/24256
89.38.23.0/24256
89.39.16.0/212,048
89.39.22.0/24256
89.39.24.0/212,048
89.39.25.0/24256
89.39.26.0/24256
89.39.27.0/24256
89.39.28.0/24256
89.39.29.0/24256
89.39.31.0/24256
89.39.152.0/212,048
89.39.156.0/24256
89.39.158.0/23512
91.151.96.0/204,096
91.151.96.0/24256
91.151.99.0/24256
91.151.105.0/24256
91.151.108.0/24256
91.151.109.0/24256
91.151.110.0/24256
91.151.111.0/24256
93.114.144.0/204,096
93.114.144.0/24256
93.114.146.0/24256
93.114.147.0/24256
93.114.148.0/24256
93.114.149.0/24256
93.114.153.0/24256
93.114.154.0/24256
93.114.156.0/24256
93.114.157.0/24256
93.114.158.0/24256
103.51.76.0/24256
103.51.77.0/24256
103.51.78.0/24256
103.51.79.0/24256
149.91.96.0/198,192
149.91.99.0/24256
149.91.106.0/24256
149.91.107.0/24256
149.91.112.0/24256
149.91.114.0/24256
149.91.115.0/24256
149.91.117.0/24256
149.91.118.0/23512
149.91.120.0/23512
149.91.122.0/23512
149.91.124.0/23512
149.91.126.0/23512
154.56.136.0/212,048
154.56.139.0/24256
154.56.143.0/24256

Showing the first 100 of 164, in address order. Complete list on RIPEstat

IPv6 prefixes (2 prefixes)

Prefix
2a03:a680:41::/48
2a03:a680:45::/48

Neighbours

Upstreams (transit or peers) (9)

ASNetworkVisibility
AS6453TATA COMMUNICATIONS (AMERICA) INC1,371
AS174Cogent Communications, LLC1,081
AS6939Hurricane Electric LLC138
AS60068Datacamp Limited21
AS6204INTERKVM HOST SRL8
AS60171AFR-IX TELECOM S.A.7
AS9009M247 Europe SRL6
AS14840BR.Digital Telecom2
AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL2

Downstreams (customers) (14)

ASNetworkVisibility
AS202440Comunicaciones Opticas Waditel, S.L.380
AS203161tomelloso Tomelloso Best Service S. L.281
AS214153ORVIS 360 SL260
AS56345TVB TELEDISTRIBUCION S.L.259
AS207030AVATEL TELECOM, SA257
AS200845AVATEL TELECOM, SA96
AS204189VideoLuc VideoLuc S.A13
AS6939Hurricane Electric LLC10
AS201746Olivenet Network S.L.10
AS202766LYNTIA NETWORKS S.A.9
AS205751-6
AS174Cogent Communications, LLC1
AS44717-1
AS214043-1

7 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.