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Autonomous System

AS52573 · Une Telecom Ltda

Overview

AS52573 is announced on the Internet: RIPE RIS route collectors currently see 69 IPv4 prefixes and 16 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 24,832 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 21 upstream neighbours (transit providers or peers) and 127 downstream neighbours (customers or networks it carries). Its most visible upstreams are ALGAR TELECOM S/A (AS16735), V tal (AS8167), and V tal (AS7738). AS52573 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:02 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 177.86.168.1, the first address of 177.86.168.0/21. 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 (69 prefixes)

PrefixAddresses
24.152.96.0/221,024
24.152.99.0/24256
45.6.228.0/221,024
45.6.230.0/24256
45.65.168.0/221,024
45.224.48.0/221,024
45.224.49.0/24256
45.224.50.0/24256
45.224.51.0/24256
45.226.56.0/23512
131.0.12.0/221,024
131.0.12.0/24256
131.0.14.0/24256
138.118.68.0/221,024
138.118.68.0/24256
138.118.69.0/24256
138.118.70.0/24256
138.204.32.0/221,024
138.255.76.0/24256
138.255.77.0/24256
138.255.78.0/24256
138.255.79.0/24256
143.137.176.0/24256
143.137.178.0/23512
143.255.148.0/221,024
143.255.149.0/24256
143.255.151.0/24256
168.90.20.0/221,024
168.90.20.0/23512
168.90.20.0/24256
168.90.21.0/24256
168.90.22.0/23512
168.197.112.0/221,024
168.197.113.0/24256
168.197.114.0/24256
168.197.115.0/24256
170.247.68.0/221,024
170.247.69.0/24256
170.247.70.0/23512
170.254.8.0/221,024
170.254.10.0/24256
170.254.11.0/24256
177.86.73.0/24256
177.86.74.0/24256
177.86.168.0/212,048
177.86.168.0/24256
177.86.169.0/24256
177.86.171.0/24256
177.86.172.0/24256
177.86.173.0/24256
177.86.175.0/24256
177.87.40.0/23512
177.87.42.0/24256
177.87.43.0/24256
177.91.40.0/221,024
177.92.176.0/212,048
177.92.176.0/24256
177.92.178.0/24256
177.92.179.0/24256
177.92.180.0/24256
177.92.181.0/24256
177.92.182.0/24256
177.92.183.0/24256
177.125.108.0/221,024
179.42.96.0/23512
186.250.252.0/221,024
186.250.253.0/24256
201.182.28.0/221,024
201.182.29.0/24256

IPv6 prefixes (16 prefixes)

Prefix
2804:ce4::/32
2804:ce4::/40
2804:ce4:80::/44
2804:ce4:100::/40
2804:ce4:300::/40
2804:ce4:2000::/36
2804:ce4:3000::/36
2804:ce4:37e0::/43
2804:ce4:3f00::/40
2804:ce4:4000::/34
2804:ce4:8400::/42
2804:ce4:fb00::/40
2804:ce4:fc00::/40
2804:ce4:fd00::/40
2804:ce4:fe00::/40
2804:ce4:ff00::/40

Neighbours

Upstreams (transit or peers) (21)

ASNetworkVisibility
AS16735ALGAR TELECOM S/A26,647
AS8167V tal16,586
AS7738V tal11,155
AS6939Hurricane Electric LLC9,397
AS10429TELEFONICA BRASIL S.A6,459
AS52468UFINET PANAMA S.A.863
AS137409GSL Networks Pty LTD504
AS6057Administracion Nacional de Telecomunicaciones447
AS53427TGLOBAL NETWORKS328
AS265137CONECTIVA TELECOM TECNOLOGIA LTDA - ME259
AS35280F5 Networks SARL179
AS267035-139
AS37468Angola Cables126
AS52564-49
AS28669-37
AS274746-23
AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA10
AS53013UFINET BRASIL S.A.9
AS39120Convergenze S.p.A.7
AS264386MMM E G TELECOMUNICACOES LTDA - ME5
AS7195EDGEUNO S.A.S1

Downstreams (customers) (127)

ASNetworkVisibility
AS52742HELP INTERNET6,413
AS263269RAGTEK TECNOLOGIA3,562
AS270664A K C PROV DE ACESSO AS REDES DE TEL. E INF EIRELI2,597
AS268892DBS TELECOM EIRELI - ME1,862
AS264118SMA NETCOM LTDA ME1,565
AS264244SPEED NET SERVICOS DE TELECOMUNICACOES LTDA-ME1,508
AS270244G2 NETWORK EIRELI ME1,493
AS264386MMM E G TELECOMUNICACOES LTDA - ME1,382
AS262952LIFE.IN TELECOM1,353
AS268650WIGVAN ROGERIO OLIVEIRA SANTANA EIRELI ME1,169
AS52935-1,105
AS265903-1,047
AS52911-1,005
AS267568-907
AS267183-884
AS270930-876
AS271605-862
AS262565-845
AS266499-825
AS271036-824
AS270292-799
AS274680-796
AS268500-732
AS270375-714
AS268926-713
AS270372-654
AS262558PROMPT BRASIL SOLUCOES EM TI LTDA653
AS262473-629
AS267077-628
AS61657-621

The 30 most visible of 127.

120 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.