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Autonomous System

AS33915 · Vodafone Libertel B.V.

Overview

AS33915 is announced on the Internet: RIPE RIS route collectors currently see 343 IPv4 prefixes and 31 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 6,591,232 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 1 upstream neighbour (transit providers or peers) and 30 downstream neighbours (customers or networks it carries). Its most visible upstream is LibertyGlobal Liberty Global Europe Holding B.V. (AS6830). AS33915 was assigned by RIPE NCC, and its registration country is Netherlands.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:04 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 83.80.0.1, the first address of 83.80.0.0/13. 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 (343 prefixes)

PrefixAddresses
5.199.188.0/221,024
24.132.0.0/1665,536
24.132.0.0/1732,768
24.132.128.0/1732,768
31.136.0.0/14262,144
31.151.0.0/1665,536
31.151.0.0/1732,768
31.151.128.0/1732,768
37.235.8.0/212,048
46.29.240.0/24256
46.29.241.0/24256
46.129.0.0/1665,536
46.129.0.0/1732,768
46.129.128.0/1732,768
62.72.192.0/198,192
62.100.0.0/1816,384
62.108.0.0/198,192
62.108.0.0/204,096
62.108.16.0/204,096
62.140.128.0/204,096
62.140.140.0/23512
62.140.156.0/23512
62.145.192.0/1816,384
62.145.192.0/198,192
62.145.224.0/198,192
62.163.0.0/1665,536
62.163.0.0/1732,768
62.163.128.0/1732,768
62.194.0.0/15131,072
62.194.0.0/1665,536
62.195.0.0/1665,536
77.248.0.0/14262,144
77.248.0.0/15131,072
77.250.0.0/15131,072
80.56.0.0/15131,072
80.56.0.0/1665,536
80.57.0.0/1665,536
80.85.32.0/204,096
80.112.0.0/1732,768
80.112.0.0/1816,384
80.112.64.0/1816,384
80.112.128.0/1816,384
80.112.128.0/198,192
80.112.160.0/198,192
80.112.192.0/1816,384
80.113.0.0/1665,536
80.113.0.0/1732,768
80.113.128.0/1732,768
80.114.0.0/1732,768
80.114.0.0/1816,384
80.114.64.0/1816,384
80.114.128.0/1816,384
80.114.128.0/198,192
80.114.160.0/198,192
80.114.192.0/1816,384
80.114.192.0/198,192
80.114.224.0/198,192
80.115.0.0/1732,768
80.115.0.0/1816,384
80.115.64.0/1816,384
80.115.128.0/1816,384
80.115.128.0/198,192
80.115.160.0/198,192
80.115.224.0/198,192
80.115.224.0/204,096
80.115.240.0/204,096
80.242.224.0/198,192
80.242.224.0/204,096
80.242.240.0/204,096
80.248.32.0/204,096
80.248.32.0/212,048
80.248.40.0/212,048
81.175.64.0/1816,384
81.175.64.0/198,192
81.175.96.0/198,192
82.72.0.0/14262,144
82.72.0.0/15131,072
82.74.0.0/15131,072
82.101.192.0/1816,384
82.101.192.0/198,192
82.101.224.0/198,192
82.151.160.0/198,192
82.151.160.0/204,096
82.151.176.0/204,096
82.217.0.0/1665,536
82.217.0.0/1732,768
82.217.128.0/1732,768
83.80.0.0/13524,288
83.80.0.0/14262,144
83.84.0.0/14262,144
83.137.136.0/212,048
83.167.192.0/198,192
84.24.0.0/13524,288
84.24.0.0/14262,144
84.28.0.0/14262,144
84.41.128.0/1732,768
84.104.0.0/14262,144
84.104.0.0/15131,072
84.106.0.0/15131,072
85.88.96.0/198,192

Showing the first 100 of 343, in address order. Complete list on RIPEstat

IPv6 prefixes (31 prefixes)

Prefix
2001:b88::/33
2001:1c00::/23
2001:1c00::/24
2001:1d00::/24
2001:41f0::/29
2a00:18c8::/29
2a00:7740::/32
2a00:7940::/32
2a02:938::/29
2a02:a200::/27
2a02:a200::/28
2a02:a210::/28
2a03:4aa0::/29
2a05:3b80::/29
2a07:3500:1170::/48
2a07:3500:1180::/48
2a07:3500:1240::/46
2a07:3500:12d0::/48
2a07:3500:12f8::/48
2a07:3500:15a0::/48
2a07:3500:15c0::/48
2a07:3500:1778::/48
2a07:3500:17f8::/48
2a07:3500:1890::/48
2a07:3500:1b90::/48
2a07:3501:1340::/48
2a07:3502:1050::/48
2a07:3502:1060::/48
2a07:3502:10a1::/48
2a07:3502:10c0::/48
2a07:3502:11a0::/46

Neighbours

Upstreams (transit or peers) (1)

ASNetworkVisibility
AS6830LibertyGlobal Liberty Global Europe Holding B.V.6,866

Downstreams (customers) (30)

ASNetworkVisibility
AS200428SouthernHill SouthernHill BV359
AS208240Gemeente Rotterdam355
AS208973haarlem Gemeente Haarlem355
AS207894Gemeente Sudwest-Fryslan342
AS61351Linfosys Linfosys BV341
AS42894Ministerie van Verkeer en Waterstaat/Rijkswaterstaat330
AS58083Gemeente Zaanstad319
AS203396Ministerie van Economische Zaken291
AS212778Gemeente Leeuwarden281
AS205637vri Gemeente Amsterdam261
AS203474-258
AS206475-258
AS209721-258
AS213099-258
AS209390-256
AS201644-254
AS48869-253
AS207275-253
AS29263-188
AS61956-183
AS215104-181
AS212151-63
AS9143-53
AS34663Belastingdienst26
AS12315Quality Service Provider BV17
AS34373-13
AS30800-6
AS39390mainfreight Mainfreight Holding BV6
AS212965-6
AS203159-3

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.