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Autonomous System

AS19151 · BroadbandONE, LLC

Overview

AS19151 is announced on the Internet: RIPE RIS route collectors currently see 40 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 63,232 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 31 upstream neighbours (transit providers or peers) and 38 downstream neighbours (customers or networks it carries). Its most visible upstreams are NTT America, Inc. (AS2914), Cogent Communications, LLC (AS174), and Hurricane Electric LLC (AS6939). AS19151 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:52 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 64.135.0.1, the first address of 64.135.0.0/17. 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 (40 prefixes)

PrefixAddresses
63.135.64.0/24256
64.38.110.0/23512
64.38.110.0/24256
64.127.128.0/221,024
64.127.140.0/221,024
64.127.140.0/24256
64.127.192.0/24256
64.135.0.0/1732,768
64.139.129.0/24256
64.139.131.0/24256
64.139.132.0/24256
64.139.133.0/24256
64.139.134.0/24256
64.139.135.0/24256
64.139.136.0/24256
64.139.137.0/24256
64.139.138.0/24256
64.139.139.0/24256
64.139.141.0/24256
64.139.144.0/24256
64.139.146.0/24256
64.139.147.0/24256
64.139.149.0/24256
64.139.151.0/24256
64.139.190.0/24256
64.139.191.0/24256
64.139.196.0/24256
64.139.217.0/24256
64.139.221.0/24256
66.186.192.0/23512
66.186.196.0/23512
66.216.0.0/1816,384
66.216.41.0/24256
158.51.179.0/24256
168.245.192.0/24256
173.211.95.0/24256
174.128.178.0/23512
198.89.85.0/24256
204.235.96.0/212,048
208.78.160.0/221,024

IPv6 prefixes (1 prefix)

Prefix
2607:f138::/32

Neighbours

Upstreams (transit or peers) (31)

ASNetworkVisibility
AS2914NTT America, Inc.54,324
AS174Cogent Communications, LLC33,817
AS6939Hurricane Electric LLC33,149
AS9002RETN Limited12,139
AS4637Telstra Global4,556
AS13786Seabras 1 USA, LLC4,279
AS7195EDGEUNO S.A.S3,745
AS37468Angola Cables3,167
AS58453China Mobile International Limited1,913
AS8220COLT Technology Services Group Limited1,759
AS33891Core-Backbone GmbH1,673
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.1,666
AS137409GSL Networks Pty LTD1,453
AS8359MTS PJSC1,234
AS4230CLARO S.A.1,090
AS2497Internet Initiative Japan Inc.740
AS13030Init7 (Switzerland) Ltd.545
AS15412Flag Telecom UK Limited536
AS1031PEER 1031 LLC443
AS25091IP-Max SA437
AS9304HGC Global Communications Limited380
AS6327Shaw Communications364
AS17676SoftBank Corp.272
AS3356Level 3 Parent, LLC253
AS2516KDDI CORPORATION247
AS41327Fiber Telecom S.p.A.244
AS5400British Telecommunications Limited238
AS7575Australian Academic and Research Network (AARNet)152
AS64126DOMINICAN TELECOM PRIME, DTP, S.R.L.142
AS20326TeraSwitch Networks Inc.35

The 30 most visible of 31.

Downstreams (customers) (38)

ASNetworkVisibility
AS64286LogicWeb Inc.1,106
AS401707ARPHost, LLC985
AS20448Peace Communications LLC412
AS18447Ntirety, Inc.389
AS402174Shield ITSM, LLC387
AS13645BroadbandONE, LLC384
AS12110Internex Inc.377
AS396853WorldCell Solutions, LLC368
AS401233Alliance Broadband364
AS49791Newserverlife LLC360
AS399360-296
AS397753-274
AS393362-258
AS22275-256
AS402786-254
AS7013-253
AS15114-253
AS19128-253
AS36508-253
AS54005-253
AS398737-253
AS6950-252
AS62299-251
AS396509-246
AS15280-210
AS394792-189
AS63221-175
AS1083-98
AS18568-92
AS21886-67

The 30 most visible of 38.

447 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.