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Autonomous System

AS37697 · WEBMASTERS, LDA.

Overview

AS37697 is announced on the Internet: RIPE RIS route collectors currently see 20 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 5,376 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 7 upstream neighbours (transit providers or peers) and 16 downstream neighbours (customers or networks it carries). Its most visible upstreams are PCCW Global (HK) Ltd. (AS3491), Network Platforms (PTY) LTD (AS37497), and Angola Cables (AS37468). AS37697 was assigned by AFRINIC, and its registration country is Mozambique.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:44 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 160.119.112.1, the first address of 160.119.112.0/21. 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 (20 prefixes)

PrefixAddresses
102.202.112.0/221,024
102.210.72.0/221,024
102.210.72.0/24256
102.210.73.0/24256
102.210.74.0/24256
102.210.75.0/24256
160.119.112.0/212,048
160.119.113.0/24256
160.119.114.0/24256
160.119.115.0/24256
160.119.116.0/24256
160.119.117.0/24256
160.119.118.0/24256
160.119.119.0/24256
169.255.132.0/221,024
169.255.132.0/24256
169.255.133.0/24256
169.255.134.0/24256
169.255.135.0/24256
196.10.148.0/24256

IPv6 prefixes (1 prefix)

Prefix
2c0f:ea68::/32

Neighbours

Upstreams (transit or peers) (7)

ASNetworkVisibility
AS3491PCCW Global (HK) Ltd.48,559
AS37497Network Platforms (PTY) LTD47,067
AS37468Angola Cables40,848
AS6939Hurricane Electric LLC842
AS30619Moçambique Telecom, SA - TMCEL - Moçambique Telecom, SA399
AS3741Dimension Data162
AS39120Convergenze S.p.A.24

Downstreams (customers) (16)

ASNetworkVisibility
AS19711SWAZILAND PTC630
AS328628Wanderport Swaziland523
AS329689Iz Telecom Su Lda520
AS328223VOIPTECH LIMITADA512
AS25139TVCABO - Comunicacoes Multimedia, Lda334
AS37436INTIC (National Institute of ICT)314
AS37556Cilix Software303
AS329310Netmoz Sociedade Unipessoal Lda275
AS31960Eduardo Mondlane University270
AS37489ABARI COMMUNICATIONS MOZAMBIQUE LDA268
AS329533-268
AS328962-264
AS329769-232
AS329394OneCloud LDA199
AS37110-185
AS329491-110

503 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.